81C1A-E28-A20L Bourns Inc., 81C1A-E28-A20L Datasheet - Page 4

• Manufacturer Part Number: 81C1A-E28-A20L
• Description: POT 100K OHM CERMET 2W
• Manufacturer: Bourns Inc.
• Series: 81r
• Type: Potentiometerr

Specifications of 81C1A-E28-A20L

• Number Of Turns: Single
• Termination Style: Through Hole
• Temperature Coefficient: ±150ppm/°C
• Resistance (ohms): 100K
• Power (watts): 2W
• Tolerance: ±10%
• Rotation: 300°
• Adjustment Type: Side Adjustment
• Resistive Material: Cermet
• Actuator Length: 22.23mm
• Actuator Type: Slotted Shaft
• Actuator Diameter: 3.18mm
• Package / Case: Square - 0.625" L x 0.625" W x 0.625" H (15.88mm x 15.88mm x 15.88mm
• Resistance In Ohms: 100K
• Resistance: 100kohm
• Power Rating: 2W
• Tolerance (+ Or -): 10%
• Technology: Cermet
• Mounting Style: Panel
• Operating Temp Range: -40C to 125C
• Failure Rate: Not Required
• Shaft Diameter (mm): 3.18mm
• Product Diameter (mm): Not Requiredmm
• Product Length (mm): 38.11mm
• Product Height (mm): 17.52mm
• Product Depth (mm): 15.88mm
• Taper: Linear
• Element Type: Cermet
• Shaft Type: Slotted
• Shaft Length: 7/8 in
• Shaft Diameter: 1/8 in
• Product: Precision Potentiometers
• Track Resistance: 100kohm
• Track Taper: Linear
• No. Of Turns: 1
• Resistance Tolerance: ± 10%
• Potentiometer Mounting: Panel
• No. Of Gangs: 1
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

Product Dimensions
Model 81/82
Single Unit - PC Pins & J-Hook
Dual Unit - PC Pins & J-Hook
Terminal outlines shown as solid lines represent PC Pins, available
on Model 81. Dashed line terminal outline represents "J" Hook,
available on Model 82.
81/82 - 5/8 ” Square Single-Turn Panel Control
(.625 ± .016)
15.88 ± .41
(1.025 ± .031)
(.200 ± .015)
5.08 ± .38
26.04 ± .79
(.235 ± .015)
5.97 ± .38
(.625 ± .015)
15.88 ± .38
(.400 ± .015)
10.16 ± .38
(.50)
12.7
(.200 ± .015)
5.08 ± .38
(.032)
(.377 ± .015)
.81
9.58 ± .38
(.150)
3.81
(.470)
11.94
DIA.
MAX. 3 PLCS.
(.210 ± .03)
5.33 ± .76
Triple Unit - PC Pins & J-Hook
(.625 ± .015)
15.88 ± .38
(1.425 ± .047)
36.20 ± 1.19
(.200 ± .005)
5.08 ± .13
Model 81
Suggested PC Board Layout - PC Pins
(Single-Shaft Style Bottom View)
Note: For units with dual concentric shaft styles, a
2.54 (.100) spacer is added between the module(s) driven
by the outer shaft and those driven by the inner shaft.
For G, K, or V shafts, add the spacer between
modules 1 and 2. For L or M shafts, add the spacer
between modules 2 and 3. For N or P shafts, add the
spacer between modules 3 and 4.
DIMENSIONS:
(.400 ± .015)
10.16 ± .38
(.400 ± .005)
10.16 ± .13
(.045)
1.14
DIA.
TYP.
(INCHES)
Customers should verify actual device performance in their specifi c applications
MM
Quad Unit - PC Pins & J-Hook
1
(.200 ± .005)
5.08 ± .13
3
2
(.400 ± .015)
10.16 ± .38
(1.825 ± .047)
46.36 ± 1.19
Specifi cations are subject to change without notice.
Shaft Flat Orientation*
*EXCLUDES MODELS 83 AND 84
TYP.
SLOTTED SHAFT
FLATTED SHAFT
1 2 3
30 ° ±5 °
120 ° ± 5 ° CCW END