25LB18-Q Grayhill Inc, 25LB18-Q Datasheet - Page 2

• Manufacturer Part Number: 25LB18-Q
• Description: ENCODER MECHANICAL 20POS PC MNT
• Manufacturer: Grayhill Inc
• Series: 25Lr

Specifications of 25LB18-Q

• Pulses Per Revolution: 20
• Output Type: Quadrature (Incremental)
• Mounting Type: Panel, PCB Through Hole
• Encoder Type: Mechanical
• Actuator Type: 1/4" Dia Flatted End
• Detent: Yes
• Built In Switch: No
• Orientation: Vertical
• Termination Style: PC Pin
• Rotational Life (cycles Min): 100K
• Encoder Resolution: 20CPR
• Terminal Type: PCB Thru Hole
• Leaded Process Compatible: Yes
• Contact Current: 250mA
• Encoder Output: Quadrature
• Operating Temperature Range: -65°C To +85°C
• Rotation Mechanical Angle: 18°
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: GH7408

SPECIFICATIONS
Electrical Ratings
Switching Loads: 1.5 mA at 115 Vac, resistive;
150 mA at 14 Vdc, resistive
Current Carrying Capacity: 250 mA
maximum at 28 Vdc, resistive load
Contact Resistance: 75 mΩ, typical
Insulation Resistance: 1000 mΩ minimum
between terminals
Voltage Breakdown: 1000 Vac minimum
between terminals
Life Expectancy: 100,000 cycles of operation at
rated loads. One cycle of operation is a rotation
through all of the active positions and a return to
the starting position.
ORDERING INFORMATION
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com
Custom materials, styles, color and markings are available. Custom knobs available, see page I-57.
Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor or Grayhill.
25LB10-Q-Z
* Cadmium free
Series: 25L = Economical, single deck encoder
Housing Color: B = Black housing*; R = Red housing
Angle of Throw: 10 = 10°, 36 positions; 11 = 11.25°, 32 positions;
Mounting Bracket: Z = with bracket, Blank = no bracket
Code Output: H = Hexadecimal available only in 22.5°
Mechanical Ratings
Rotational Torque: 2 to 6 in-oz
Operating Temperature Range: -65 C° to +85 C°
Storage Temperature Range: -65 C° to +85 C°
Continuous Rotation: All standard switches
are continuous rotation. Desired stop locations
supplied upon request.
Anti-Rotation Device: Integral non-turn tab,
flatted bushing, .375" diameter, .320 double “D”
across flats.
Termination: Standard is PC style, parallel to
shaft, facing rear. Options include PC, parallel to
shaft, facing front; PC, perpendicular to shaft.
Panel Mounting Torque: 10 in-lbs maximum
G = Gray available only in 22.5°
Q = Quadrature (2-bit)
15 = 15°, 24 positions; 18 = 18°, 20 positions;
22 = 22.5°, 16 positions; 30 = 30°, 12 positions;
45 = 45°, 8 positions
Mechanical Encoders
Materials and Finishes
Bushing/Housing and Shaft/Rotor: Reinforced
thermoplastic
Detent Ball: Stainless steel, nickel-plated
Detent Spring: Tinned music wire
Contacts: Beryllium copper, gold plate over
nickel
Terminals: Copper alloy, CDA #725, solder
plate over nickel
Output Board: FR-4, copper/nickel-plated
Mounting Hardware: Brass, cadmium-plated
hex nut
Mounting Bracket: Stainless Steel, tin-plated
I-52