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

ENCODER MECHANICAL 20POS PC MNT

25LB18-Q

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

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: 708-354-1040 • Fax: 708-354-2820 • 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

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