81C1A-E28-A20L Bourns Inc., 81C1A-E28-A20L Datasheet - Page 3

• 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
M10 x 0.75-6g
(.492 ± .015)
(.375 ±.015)
"E" Bushing
1/4 " (6.35 mm) Dia. Locking - Single Shaft
"S" Bushing
10 mm Dia. Locking - Single Shaft
12.50 ± 0.38
"A" Bushing
3/8 " (9.53 mm) Dia. Plain - Single Shaft
9.50 ± .38
(.312)
(.500 ± .005)
7.92
1/4-32 UNEF
12.7 ± .13
(.216)
"A" BUSHING END FOR SHAFTS UNDER
MIN.
5.49 OPTIONAL FLAT 16.00 LONG OR 1.52 FROM
81/82 - 5/8 ” Square Single-Turn Panel Control
MIN.
10.92
(.430)
(.375 ± .005)
PILOT DIA.
9.53 ± .13
(.250 ± .002)
(.425)
10.80
PILOT DIA.
MIN.
6.35 ± .05
3/8-32 UNEF
(.63)
(.390)
9.90
45 ° ±5 ° X
CHAMFER
45 ° ±5 ° X
22.00 ± 0.79
(.866 ± .031)
CHAMFER
STANDARD
PILOT DIA.
45 ° ±5 ° X (.010)
12.7,15.88,19.05,22.23± .79
(5/8 ± 1/32)
15.88 ± .79
STANDARD
CHAMFER
6.000 +0.000/-0.075
SHAFT SLOT
(.063+.015/-.000)
SHAFT SLOT
(.125 ± .001)
(.031 ± .001)
SHAFT SLOT
WIDE X
(.236 +.000/-.003)
(1/2, 5/8, 7/8, ± 1/32)
1.60+.38/-.00
.78 ± .03
3.18 ± .03
( 11/16 )
17.46
(1/4 ± 1/32)
6.35 ± .03
(.06)
STANDARD
(.071 ± .010)
(.010)
(.010)
1.80 ± 0.25
.25
.25
(.031)
(.047)
.25
1.19
.78
(.040 ± .004)
1.01 ± 0.10
DIA.
DEEP
DIA.
WIDE X
WIDE X
DEEP
DIA.
DEEP
(3/4 ± 1/32)
STANDARD
19.05 ± .79
3/8-32 UNEF
(.125)
"B" Bushing
3/8 " (9.53 mm) Dia. Plain - Single Shaft
OUTER SHAFT
3.18
(.500 ± .005)
"A" Bushing
3/8 " (9.53 mm) Dia. Plain - Concentric Shaft
3/8-32 UNEF
12.70 ± .13
DIA. OPERATES SECTION #2, #3, & #4 ("G" STYLE)
DIMENSIONS:
(.249)
7.47
(.375 ± .005)
PILOT DIA.
9.53 ± .13
(.438)
11.13
MIN.
(1-1/8 ± 1/32)
DIA. OPERATES SECTION #1 INNER SHAFT
28.58 ± .79
STANDARD
(.375)
9.53
TRIPLE CONCENTRIC
(SPECIAL ORDER)
(INCHES)
(5/8 ± 1/32)
STANDARD
15.88 ± .79
45 ° ±5 ° X
MM
CHAMFER
(.249 ± .001)
(.063 +.015/-.000)
SHAFT SLOT
1.60 + .38/- .00 DEEP
6.32 ± .03
(.249 ±.001)
6.32 ± .03
(.1245 ± .001)
3.162 ± .025
(.010)
(.078 ± .001)
.25
1.98 ± .03
(.047)
DIA.
1.19
Customers should verify actual device performance in their specifi c applications
WIDE X
DIA.
DIA.
DIA.
"C" Bushing
1/4 " (6.35 mm) Dia. Plain - Single Shaft
(.250 ± .005)
"C" Bushing
1/4 " (6.35 mm) Dia. Plain - Concentric Shaft
6.35 ± .13
(1.95)
(.175)
OUTER SHAFT 3.18 DIA. OPERATES SECTION #1 INNER SHAFT
MIN.
4.45
.078
(5/8 ± 1/32)
15.88 ± .79
STANDARD
1/4-32 UNEF
DIA. OPERATES SECTION #2, #3, & #4 ("G" STYLE)
(.250 ± .002)
(.094 ± . 005)
"C" BUSHING END FOR SHAFTS UNDER
PILOT DIA.
6.35 ± .05
2.39 ± .13 OPTIONAL FLAT 6.35 LONG OR 1.52 FROM
Specifi cations are subject to change without notice.
(.125)
CCW
1
1/4-32 UNEF
(.25)
6.35
25.40 ± .79
STANDARD
(1 ± 1/32)
POTENTIOMETER
2
(.1245 ± .001)
3.162 ± .025
9.53,12.7,15.88,19.05,22.23 ± .79
(.250)
(3/8, 1/2, 5/8, 3/4, 7/8, ± 1/32)
45 ° ±5 ° X
CHAMFER
(.1245 ± .001)
3.162 ± .025
SHAFT SLOT
(.031 ± .010)
.79 ± .25
(.078 ± .001)
14.30
(9/16)
STANDARD
1.98 ± .03
DIA.
3
(.010)
.25
(.06)
DIA.
(.031)
.79
DEEP
DIA.
WIDE X