H-38-11 Bourns Inc., H-38-11 Datasheet
H-38-11
Specifications of H-38-11
Related parts for H-38-11
H-38-11 Summary of contents
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Sensors and Controls ...
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... Modification Capabilities and Value-Added Solutions . . . . . . . . . . . . . . . . .9 Array of Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Encoders Selecting an Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Modification Capabilities and Value-Added Solutions . . . . . . . . . . . . . . . .17 Array of Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Custom Solutions Automotive Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Other Custom Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Integrated Front Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Cursor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Application Notes Potentiometers Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Typical Applications & Circuit Configurations . . . . . . . . . . . . . . . . . . . .30 Encoders Performance Characteristics ...
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... The 58,000 square foot facility employs over 500 people and has been recognized with various quality awards from Ford and Motorola among others. The facility is ISO/QS certified since 1997 and has certified several employees through the six-sigma “Black Belt” program. With the implementation of the Bourns ...
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... This process reduces cycle time and decreases response time to the customer. The QRC’s mission is quick response to the design needs of our customers. BCLM Quick Response Center Team Design Center ...
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... In addition to testing finished products, our lab is set up to test individual piece parts, such as printed elements and windings, for endurance. The Reliability Assurance Test Program (RATP), which has a six-sigma quality goal, is evidence of our commitment to quality ...
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... Customer Service Bourns’ distributor network is the most extensive in the industry. Our three Bourns Customer Service Centers located in the US, Europe and Asia, as well as our extensive distributor network, are dedicated to serve you on any aspect and demand. With 100 % on-time delivery and world-class service as core business objectives, we ensure direct support for customers in all countries and market segments ...
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... A carbon-based resistive ink is screened or sprayed onto a phenolic or FR4 substrate. Resistance ranges are limited, beginning with 1 kΩ and going as high as 1 MΩ. Potentiometers using this element technology are typically for commercial type applications, with rotational life in the 10,000 to 15,000 cycles range. ...
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... For applications that may be sensitive to such discrete steps, care should be taken to select an element with resolution fine enough to avoid difficulty. The coil of resistance wire used to fabricate a wirewound element exhibits an inductive reactance that increases proportionately with the frequency ...
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... Terminal Configurations Terminals can be customized. Hardware Most products are shipped with one hex nut and one lock washer, with other configurations available on request. Bushing and Servo Mount Bushings can be modified to add a flat, provide special thread pitch, or even custom lengths ...
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... We can provide custom mechanical and electrical angles. Electrical angles are typically smaller than their corresponding mechanical angles. Multi-Section Potentiometers This feature is available on many panel control and precision potentiometer models. These devices can be configured with one shaft to control multiple ganged potentiometers dual concentric shaft for individual adjustment ...
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... Automotive Comfort Controls • Motorized Golf Carts Medical State-of-the-art medical equipment requires a reliable electronic solution that will withstand the use and abuse of daily wear. Bourns® potentiometers, used as human interface controls, or sensors in non-critical life support applications are designed to outlast the equipment life. ...
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... Broadcast Equipment • Keyboards • Amplifiers • Commercial Audio Sound Systems Instrumentation On a panel in selector mode, or inside the cabinet as a sensor, Bourns’® potentiometers are an excellent choice for all types of instrumentation. • Oscilloscopes • X-Y Plotters • Fluid Level Sensors • ...
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... Hand Mixers • Food Processors Consumer Electronics Bourns® potentiometers continue to get smaller as the demand for portable equipment increases. Take a look at all the models we have to offer for this growing consumer electronics industry. • Computer Speakers • Car Audio • Dictation Equipment • ...
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... Sensing speed of rotation • Pulse generation • Switching An advantage of using encoders over potentiometers in a digital circuit is that the signal produced by an encoder eliminates the analog-to-digital (A/D) conversion process. This approach can reduce memory overhead, wiring and wiring interconnects, and can provide greater MPU program speed. ...
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... On the other hand, non-contacting encoders can be rotated at high speeds. Most contacting encoders begin to skip counts when the shaft is rotated in excess of 100 RPM, while non- contacting encoders fitted with ball bearings can be rotated at speeds up to 3000 RPM. Rotational Life Contacting encoders have a limited rotational life due to wear on mechanical contact components used to create the signal output ...
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... Terminal Configurations Terminals can be formed to meet your application needs. Hardware Most products are shipped with one hex nut and one lock washer, but other configurations are available upon request. Marking Standard marking includes the Bourns part number and date code ...
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... This extra measure of adaptability makes Bourns® encoders the optimum solution for a broad range of applications. Our engineering and design expertise used to resolve customer needs have led us to encoder applications in the following industries: Professional and Consumer Audio An industry leader serving the professional and consumer audio market, Bourns’ ...
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... Forklift Trucks • Machine Tools • Automated Gates/Doors • Fluid Measurement To assist you in making the right encoder selection for your application, please refer to the sections in this guide entitled “Application Notes” and “Product Selection Guides.” These sections provide a side-by- side comparison of specifi ...
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... Custom Solutions Automotive Products Many of the world’s leading manufacturers have long known Bourns as a company that they can trust to deliver quality electronic parts on time and within tar- targget costs. With components and inte- integrated solutions for many automotive appapplications, Bourns Sensors and Controls has a keen sense of automotive companies’ ...
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... Engineering Group has the expertise to design, prototype, and manufacture it for you. Simply contact your local Bourns Sales Representative with details of your idea or design, and they will do the rest. Like millions before you, Bourns will be happy to provide you with the most Reliable Electronic Solutions the industry has to offer ...
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... Integrated Electronic Front Panel Solutions • Infotainment Electronic Solutions Dimming System • 3310 Panel Control Engine Management Systems • Throttle Position Sensors • Pedal Position Sensors • EGR Valve Position Sensors • Transmission/Gear Position Sensors Stability Systems • Suspension Sensors • ...
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... From throttle position sensors for a unique automotive environment, to printed circuit boards custom fitted with Bourns® contacting encoders, we aid customers in developing their ideas into assembly ready solutions. Bourns can ...
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... We ship a fully tested and assembled unit, truly a plug and play solution. Additional information can be found in the section entitled “Data Sheets.” If you currently use three or more encoders on your panel design, we can customize an IFP to your specifications. Contact your local Bourns Sales Representative today. ...
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... PTA B PTB B Notes: • Please refer to the datasheets for more information on taper codes • *Custom parts only • All precision potentiometer models are available in linear only. • “S” taper and other tapers are available by special order. Table 1: Taper Codes by Model ...
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... The wiper load must always be specified carefully has a great effect on the wiper output. Unless otherwise specified, Bourns assumes the resistance wiper load least 100 times the value of the potentiometer per the industry standard. In specifying the wiper load, keep in mind that if the current load is too high, linearity will degrade ...
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... Table 2: Performance Characteristics of Precision Potentiometers Panel Control Potentiometers Element Technology Characteristics Resistance Range Resistance Tolerance Temperature Coefficient Power Dissipation Noise/CRV Resolution Adjustability Moisture Stability Linearity Rotational Life Power Rating Relative Price Element technologies are ranked best Table 3: Performance Characteristics of Panel Control Potentiometers Typical Applications ...
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... Figure 4: Voltage Divider Circuit Rheostat Mode Many applications use the variable resistance between the wiper and one end terminal as a method of current adjustment. This two terminal method of connection is frequently referred to as the rheostat mode. Figure 5 illustrates the basic rheostat circuit. ...
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... A frequency control in a bridge oscillator requires that the two potentiometers track each other closely. Good linearity is necessary if a calibrated dial used. Wirewound potentiometers work well for frequencies few tens of kHz. At higher frequencies, winding inductance causes problems dictating use of film elements. The resolution of wirewound potentiometers should be considered at the low R (high frequency) end of rotation ...
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... See Figure 13. Figure 13: AF Balance Control Circuit Triac Control In this application, the panel control is used as a triac load control (i.e., light dimmer) using a rheostat configuration. The principal concern in this application is wiper current or power dissipation and voltage rating ...
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... Both panel controls are normally controlled with a single shaft. See Figure 17. Figure 17: Trace Position Circuit CRT Focus In this application, the panel control is used as a focus control for a cathode ray tube (CRT). With no DC load present, there is also no wiper current. Attention must be given to the high voltage rating of ...
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... Resolution Resolution refers to the number of electrical pulses per shaft revolution that an encoder produces as a digital output signal. Incremental and absolute contacting encoders are generally limited to low resolutions depending on the materials used in their construction. Optical encoders have a much higher resolution in comparable package sizes ...
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... Exceeding the maximum electrical speed may result in incorrect data or signal error. • Noise in the input power supply or the outputs of an encoder may cause application problems. Some of the common means of minimizing such noise are grounding, twisted pairs, shielded or isolated leads, and signal conditioning ...
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... Notes: 1) Radial loads are assumed to be applied 1/2” from the front mounting surface (FMS) 2) The static load rating ( 10.7 lbs. for ENT and ENW styles 0 (1/8” shaft dia.) and 21 lbs. for ENS versions (1/4” shaft dia.). 3) If R=radial load, AP=axial push load and APL=axial pull load, recommended loading limits are as follows APL < ...
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... Express the desired shaft length (from the mounting surface - FMS) in thirty-seconds of an inch, and then subtract 28 from the numerator. The result is the shaft length modifiers. For example: A shaft length (FMS) of 5/8˝ is equivalent to 20/32. The shaft length modifier is then equal to 20 minus 28, or -8. Shafts The EN Series encoder uses a precision-machined metal shaft ...
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... This device can also be used for position sensing applications. In this case, a gear can be placed on the encoder shaft allowing interfaced with a moving table, rotating shaft, stepping motor, etc. Movement of the encoder shaft is translated into a 2- ...
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... If necessary, rise/fall times can be reduced using the inverters as illustrated in Figure 24. Figure 24: Circuit for Reducing Signal Rise/Fall Times The typical switch time for the ASIC used in the EN Series is 500 nanoseconds. In applications where high-speed transition times are encountered, voltage spikes may cause a code output error. To eliminate the voltage spikes, we suggest placing a 0 ...
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... TR Tolerances Maximum EEA Noise ENR Output Smoothness PC Pins Solder Lug Terminal Rear Side J-Hooks Linear Taper Linearity Repeatability of Dial Readout Specifications are subject to change without notice. 3700 3701 1/2 1/2 Round Round 10 11 Sealable to IP64 Sealable to IP64 Standard Standard Optional Optional ...
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... Optional Optional Optional Optional Optional Optional Optional 50 50 100 100 3750 3751 100 1 K 100 K 100 Optional Optional Optional Optional Optional Optional N/A N/A Optional Optional Optional Optional Optional Optional Optional Optional 50 50 100 100 Specifications are subject to change without notice. ...
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... Standard Standard Standard Optional Optional Standard N/A N/A N/A ±5 % ±5 % ±3 % 1080 ° 1800 ° 3600 ° 100 ohms max. 100 ohms max. 100 ohms max. N/A N/A 0.1 % N/A N/A N/A Standard Standard Standard N/A N/A N/A Standard Standard ...
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... K 100 K 200 K 1 1.5 2 300 K 500 N/A N/A Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional 500 500 500 Specifications are subject to change without notice. ...
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... TR Tolerances Maximum EEA Noise ENR Output Smoothness PC Pins Solder Lug Terminal Rear Side J-Hooks Linear Taper Linearity Repeatability of Dial Readout Specifications are subject to change without notice. 3400 3600 1-13/16 3/4 Round Round 10 10 Sealable to IP65 N/A Standard N/A N/A Standard Standard ...
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... Optional Optional Optional N/A Standard Optional N/A Optional N/A Optional Optional Optional N 500 500 3610 3680 100 50 100 1 N/A N/A Optional Optional Optional Optional N/A N/A N/A N/A N/A N/A Optional N/A N/A N 500 500 Specifications are subject to change without notice. ...
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... Element Total Resistance Tolerances Effective Electrical Angle Output Smoothness (OPS) PC Pins Solder Lug Terminal Rear Side Linear Taper Linearity, Standard Special Linearity Specifications are subject to change without notice. 3435 6534 6537 1-1/16 7/8 Round Round Round 1 1 N/A Sealable to IP61 Sealable to IP61 ...
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... Optional 25 50 500 500 500 6538 6539 100 K 100 N/A N/A Standard Optional Standard Optional Standard Optional N/A N/A Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional 500 500 Specifications are subject to change without notice. ...
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... Conductive Plastic Wirewound Element Total Resistance Tolerances Effective Electrical Angle Output Smoothness (OPS) PC Pins Solder Lug Terminal Rear Side Linear Taper Linearity, Standard Special Linearity Specifications are subject to change without notice. 6639 6637 6638 7/8 7/8 7/8 Round Round Round Standard Standard ...
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... Standard Standard Optional Standard Standard Optional Standard Standard Optional N/A N/A Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional 500 500 500 Specifications are subject to change without notice. ...
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... Power-Linear Cermet (watts) Power-Linear CP (watts) Power Power-Audio Cermet (watts) Rating Power-Audio CP (watts) Wirewound Life Rotational (No Load) Rotary Switch Available Switch Push Momentary Switch Specifications are subject to change without notice. 3310 1/2 inch Square Round 1 1 Sealable to IP67 Sealable to IP64 N/A N/A ...
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... N/A N/A 1,000 1,000 3862 N/A Standard Optional Optional Optional N/A N/A Optional Optional N/A Optional Optional Optional Optional N/A N/A Optional Optional Optional Optional N/A Optional N/A N/A N/A Optional 500 N/A 1,000 Specifications are subject to change without notice. ...
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... Max. Resistance (ohms) Power-Linear Cermet (watts) Power-Linear CP (watts) Power Power-Audio Cermet (watts) Rating Power-Audio CP (watts) Wirewound Life Rotational (No Load) Rotary Switch Available Switch Push Momentary Switch Specifications are subject to change without notice 1/2 1/2 Square Square 1 1 Sealable to IP65 Sealable to IP65 Optional Optional ...
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... Optional Optional Optional Optional Optional Optional Optional N/A N/A Optional Optional Optional Optional Optional N/A Optional Optional Optional Optional Optional Optional N/A Standard N/A Optional 500 250 1,000 Specifications are subject to change without notice. ...
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... Resistance Max. Resistance (ohms) Power-Linear Cermet (watts) Power-Linear CP (watts) Power Power-Audio Cermet (watts) Rating Power-Audio CP (watts) Wirewound Life Rotational (No Load) Rotary Switch Available Switch Push Momentary Switch Specifications are subject to change without notice 5/8 5/8 5/8 Square Square Square N/A N/A ...
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... Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional N/A N/A N/A N/A N/A N/A N/A N/A N/A Optional Optional Optional 250 250 250 100 N/A N/A 500 1,000 1,000 Specifications are subject to change without notice. ...
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... Resistance Max. Resistance (ohms) Power-Linear Cermet (watts) Power-Linear CP (watts) Power Power-Audio Cermet (watts) Rating Power-Audio CP (watts) Wirewound Life Rotational (No Load) Rotary Switch Available Switch Push Momentary Switch Specifications are subject to change without notice 5/8 5/8 5/8 Square Square Square N/A N/A ...
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... Optional Optional Optional Optional Optional N/A N/A N/A N/A N/A N/A Optional Optional Optional Optional 500 500 500 N/A N/A N/A 1,000 1,000 1,000 Specifications are subject to change without notice N/A N/A N/A N/A N/A N/A N/A N/A 500 N/A 1,000 ...
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... Power-Linear Cermet (watts) Power-Linear CP (watts) Power Power-Audio Cermet (watts) Rating Power-Audio CP (watts) Wirewound Life Rotational (No Load) Rotary Switch Available Switch Push Momentary Switch Specifications are subject to change without notice. 3851 3852 3/4 3/4 Round Round 1 1 Sealable to IP65 Sealable to IP65 N/A ...
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... Optional Optional Optional Optional Optional N/A Optional N/A Optional Optional Optional Optional N/A Optional N/A Optional Optional N/A N/A Optional Optional N/A N/A N/A Standard N/A Standard Optional Optional 500 1,000 N/A N/A 1,000 1,000 Specifications are subject to change without notice. ...
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... Shaft Flat Special Shaft Length Options Pin Length Torque Extra Hardware Mounting Bracket Low Temperature (-40 °C) Center Tap Order Min. Order Quantity Guidelines Min. Special Order Quantity Specifications are subject to change without notice. PTV09 PTD90/PTR90 PTV111/PTT111 9 9 Square Square Square Center ...
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... Standard Standard Standard ±20 % ± 0.5 0.125 0.025 0.025 N/A N/A N/A N/A Optional Optional N/A N/A N/A N/A Optional Optional Optional Optional Optional Optional N/A N/A Optional Optional N/A N/A 1,000 1,000 50,000 50,000 Specifications are subject to change without notice. ...
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... PC Mounting Bracket Pin Length Terminal Configuration Cabling/Connectors Low Temperature Marking Custom Resolution Order Min. Order Quantity Guidelines Min. Special Order Quantity Specifications are subject to change without notice. 3315 ES EPS 0.375 mm x 0.874 x 1.061 .78 ” square 0.375 mm x 0.496 ” N/A N/A ...
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... RPM -10 °C to +70 °C N/A 5 milliseconds VDC 10.2 kgf maximum 30.6 to 204 g-cm 100,000 N/A N/A Optional Optional Optional N/A N/A N/A N/A N/A Optional Optional Optional N/A N/A 1,000 50,000 Specifications are subject to change without notice. ...
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... Reliable Electronic Solutions Specifications Turns Readout Package Diameter (mm) Physical Depth (mm) Division/Turn Weight Shaft Part No./Shaft Diameter Dimensions POT/ Dial Bourns Matching POTS Selection Specifications are subject to change without notice. H-22 H-23 0-15 0-15 Concentric Scale Concentric Scale H-22-6A: 1/4 ” H-23-6A: 1/4 ” ...
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... H-38-4 Lock Nut H-37-3 Lockwasher H-37-4 Lockwasher H-37-5 Lockwasher H-38-8 M7 Mounting Nut H-38-9 M10 Mounting Nut H-38-11 M9 Mounting Nut H-38-14 M6 Mounting Nut H-W06-MM Flat Washer & Mounting Nut set (1 each) H-W09-MM Flat Washer & Mounting Nut set (1 each) 66 Bushing Style and Dimension ...
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... Bit (incremental encoders) Refers to 1 quantum of data or 1 increment of digital code. (absolute encoders) Refers to the number of tracks which normally equate to 2nth power, i.e., 8 bits = 2 256 discreet positions, likewise 12 bits = 2 4,096 discreet positions. Carbon A mixture of carbon powder and phenolic resin that is sprayed, screened, or brushed onto a phenolic or ceramic substrate ...
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... Index The output signal of an index channel is normally a single pulse per revolution. This output can be used to indicate a “zero” or “home” position in the shaft rotation. Adding an index channel to an incremental encoder allows the encoder to provide absolute position. (Also referred to as “Index channel” ...
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... Phase The relationship between channel A and channel B; the rising edge on channel A to rising edge on channel B measured in electrical degrees (°e). Phase reference point The reference point on a potentiometer cup, usually an output ratio or an intermediate tap. ...
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... A variable resistor configured so that all the current flows through the wiper. Roll-on/Roll-off The abrupt output voltage or resistance change observed as the shaft is displaced from the end of mechanical travel into the electrical travel. Rotational life The ability of a component to withstand a specified number of cycles under specific operating conditions while remaining within allowable specifi ...
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... The DC resistance between the end terminals with the shaft positioned to give a maximum resistance value. Voltage divider A potentiometer configured in a circuit such that the resistive element is substituted for two resistors in series with the wiper providing an adjustable output voltage. Voltage tap An electrical connection fixed to the resistive element, which introduces no signifi ...
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... To obtain technical applications assistance, a quotation place an order, contact a Bourns representative in your area. “Hybitron” registered trademark of Hybitron, Inc. “Bourns” registered trademark of Bourns, Inc. in the U.S. and other countries. ...