3345P-1-251 Bourns Inc., 3345P-1-251 Datasheet
3345P-1-251
Manufacturer Part Number
3345P-1-251
Description
TRIMPOT 250 OHM 1/2" RD WW ST
Manufacturer
Bourns Inc.
Series
3345 - Sealedr
Type
Trimmerr
Datasheet
1.Q23713.pdf
(1 pages)
Specifications of 3345P-1-251
Number Of Turns
Single
Termination Style
PC Pin
Temperature Coefficient
±50ppm/°C
Resistance (ohms)
250
Power (watts)
1W
Tolerance
±5%
Adjustment Type
Top Adjustment
Resistive Material
Wirewound
Mounting Type
Through Hole
Package / Case
Round - 0.450" Dia x 0.235" H (11.43mm x 5.97mm)
Resistance
250Ohm
Power Rating
1W
Tolerance (+ Or -)
5%
Technology
Wirewound
Mounting Style
Through Hole
Operating Temp Range
-55C to 150C
Failure Rate
Not Required
Shaft Diameter (mm)
11.43mm
Product Diameter (mm)
11.43mm
Product Length (mm)
Not Requiredmm
Product Height (mm)
5.97mm
Product Depth (mm)
Not Requiredmm
Operating Temperature Range
- 55 C to + 150 C
Element Type
Wire Wound
Product
Trimmer Resistors - Single Turn
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Standard Resistance Range
Resistance Tolerance ................ ±5 % std.
Absolute Minimum Resistance
Noise ........................ 100 ohms ENR max.
Resolution
Dielectric Strength
Insulation Resistance .................. 500 vdc.
Adjustment Angle .....................280 ° nom.
Environmental Characteristics
Power Rating
Temperature Range ...... -55 °C to +150 °C
Temperature Coeffi cient ....... ±50 ppm/°C
Seal Test ..........................85 °C Fluorinert†
Humidity .......... MIL-STD-202 Method 106
Vibration ...........30 G (1 % ΔTR; 1 % ΔVR)
Shock .............100 G (1 % ΔTR; 1 % ΔVR)
Load Life ...... 1,000 hours, 1 watt @ 70 °C
Rotational Life ........................... 200 cycles
Physical Characteristics
Mechanical Angle .....................310 ° nom.
Torque ................................ 5.0 oz-in. max.
Stop Strength ...................... 15 oz-in. min.
Terminals ........................... Solderable pins
Weight ............................................0.04 oz.
Marking .............................. Manufacturer’s
Standard Packaging .......100 pcs. per bag
REV. 08/10
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
“Trimpot” is a registered trademark of Bourns, Inc.
†”Fluorinert” is a registered trademark of 3M Co.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
Electrical Characteristics
Sea Level .................................1,500 vac
70,000 Feet ................................350 vac
70 °C ..............................................1 watt
150 °C ...........................................0 watt
...................................... 10 to 50K ohms
.........................1.0 % or 0.5 ohms max.
................See standard resistance table
(see standard resistance table)
manufacturer’s model number
trademark, resistance code,
(1 % ΔTR, 10 megohms IR)
(tighter tolerance available)
wiring diagram, date code,
(2 % ΔTR; 500 ohms ENR)
(whichever is greater)
1,000 megohms min.
100 megohms min.
and style
(.495 ± .015)
(.550 ± .015)
DIA.
Features
■
■
■
■
■
3345P
3345P THUMBWHEEL
3345W
3345W THUMBWHEEL
TOLERANCES:
3345 - 1/2 ” Round Trimpot
(.235 ± .015)
12.57 ± .38
13.97 ± .38
5.97 ± .38
(.495 ± .015)
ADJ. SLOT
(.525 ± .015)
Product Dimensions
12.57 ± .38
Single-turn / Wirewound / Industrial /
Sealed
Industrial wirewound
1.0 watt power rating at 70 °C
Available with a thumbwheel and
screwdriver slot adjustment
RoHS compliant*
13.34 ± .38
(.450 ± .015)
11.43 ± .38
MIN. LENGTH
DIMENSIONS:
(.200)
(.235)
5.08
5.97
(.450 ± .015)
DIA.
11.93 ± .38
MIN.
LONG X
(.450 ± .015)
(.010)
11.43 ± .38
0.25
(.500)
MIN. STANDOFFS
12.7
(.270 ± .015)
(.035)
.686 ± .38
(.015)
.89
.38
(.043 ± .015)
(INCHES)
1.09 ± .38
EXCEPT WHERE NOTED
DEEP X
MM
(.028 ± .003)
(.10)
2.54
.71 ± .08
DIA.
2
(.025)
(.315 ± .015)
(.235 ± .015)
(.10)
2.54
3
2
1
.64
8.00 ± .38
5.97 ± .38
DIA.
(.10)
2.54
3
1
(.345 ± .015)
(.270 ± .015)
WIDE
(.450 ± .015)
8.78 ± .38
(.043 ± .015)
6.86 ± .38
11.43 ± .38
1
1.09 ± .38
2.54
(.10)
2
2.54
(.10)
(.10)
2.54
3
®
■
Trimming Potentiometer
Special resistances available from 10 to
50K ohms.
Model
Style
Standard Product
Resistance Code
Optional Suffi x Letter
Consult factory for other available options.
How To Order
Resistance
(Ohms)
10
20
50
100
200
500
1,000
2,000
5,000
10,000
20,000
50,000
For trimmer applications/processing
guidelines,
Standard Resistance Table
T = Thumb Wheel
CCW
1
click here
CLOCKWISE
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
503
3345 P - 1 - 502 T
2
WIPER
Resolution
(Percent)
Nominal
3
0.94
0.76
0.58
0.49
0.49
0.38
0.30
0.24
0.18
0.14
0.13
0.12
CW
Related parts for 3345P-1-251
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
POT 1.0K OHM 1/2" RND WW SEAL ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
POT 20K OHM 1/2" RND WW SEAL ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
POT 50 OHM 1/2" RND WW SEAL ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
POT 2.0K OHM 1/2" RND WW SEAL ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
POT 100 OHM 1/2" RND WW SEAL ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
POT 200 OHM 1/2" RND WW SEAL ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
POT 5.0K OHM 1/2" RND WW SEAL ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
POT 10K OHM 1/2" RND WW SEAL ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
POT 500 OHM 1/2" RND WW SEAL ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
TRIMPOT 2.5K OHM 1/2" RD WW ST
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Bourns, Inc.
Datasheet:
Part Number:
Description:
11mm Potentiometer
Manufacturer:
Bourns, Inc.
Datasheet: