3.18
(.125 )
31.75
(1.25)
25.4
(1.000) 1.47 ± .56
(.058 ± .022)
2.36
(.093)
MTG. HOLES (2)
LEADS MIN. LENGTH
6.10
(.240) 6.10
(.240)
4.83
(.190)
8.00 ± .38
(.315 ± .015)
2.67
(.105 ) 3.43 ± .38
(.135 ± .015)
17.78
(.700)
22.86
(.900)
6.60
(.260)
21 3
12.70 ± .79
(.500 ± .031)
2
1 3
3.80
(.150)
2.54
(.100)
17.78
(.700)
7.62
(.300)
6.35
(.250)
DIA.
TYP.
TYP.
152.4
(6.000)
ADJ. SLOT
2.92 ± .38
(.115 ± .015)
.64
(.025)
.79
(.031)
WIDE
X
XDEEP
DIA.
.71 ± .03
(.028 ± .001) DIA. TYP.
.71 ± .03
(.028 ± .001)
DIA. TYP.
Features
■ 1-1/4 ” Rectangular / Multiturn
Wirewound / Industrial / Sealed
■ Panel mount option available
■ Listed on the QPL for style RT12 per
MIL-PRF-27208
■ RoHS compliant*
■ For trimmer applications/processing
guidelines, click here
3057 - Trimpot® Trimming Potentiometer
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
“Trimpot” is a registered trademark of Bourns, Inc.
†“Fluorinert” is a registered trademark of 3M Co.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
Electrical Characteristics
Standard Resistance Range
.................................. 10 to 50K ohms
(see standard resistance table)
Resistance Tolerance ............. ±5 % std.
(tighter tolerance available)
Absolute Minimum Resistance
.......................... 0.1 % or 1 ohm max.
(whichever is greater)
Noise .....................100 ohms ENR max.
Resolution ........... See Resistance Table
Insulation Resistance ............... 500 vdc.
1,000 megohms min.
Dielectric Strength
Sea Level............................. 1,500 vac
70,000 Feet ............................ 400 vac
Adjustment Travel .............22 turns nom.
Environmental Characteristics
Power Rating @ 70 °C ..................1 watt
Power Rating @ 150 °C ................0 watt
Temperature Range ... -55 °C to +150 °C
Temperature Coeffi cient ..... ±50 ppm/°C
Seal Test ......................85 °C Fluorinert†
(pin styles only)
Humidity .......MIL-STD-202 Method 106
96 hours
2 % ΔTR, 100 Megohms IR)
Vibration ............. 30 G (1 % ΔTR; 0.5 %
+ resolution ΔVR)
Shock ............... 100 G (1 % ΔTR; 0.5 %
+ resolution ΔVR)
Load Life ....1,000 hours 1 watt @ 70 °C
(2 % ΔTR)
Rotational Life ..... 200 cycles (2 % ΔTR)
Physical Characteristics
Torque ............................. 8.0 oz-in. max.
Mechanical Stops ................. Wiper idles
Terminals ........ Solderable pins and lugs
Flexible leads ......(7 strands of 30 AWG)
Weight ....................................... 0.10 oz.
Marking .........Manufacturer’s trademark,
resistance code, terminal numbers,
date code, manufacturer’s model
number and style
Wiper ............... 50 % (Actual TR) ±10 %
Flammability ..........................U.L. 94V-0
Standard Packaging
P&Y Style ..................10 pcs. per tube
L&J Style ....................25 pcs. per bag
Adjustment Tool ..............................H-90
Product Dimensions
How To Order
3057 L - 1 - 103 M
Model
Style
Standard or Modifi ed
Product Indicator
-1 = Standard Product
Resistance Code
Optional Suffi x Letter
M = Panel Mount
(Factory Installed)
Standard Resistance Table
Nominal
Resistance Resistance Resolution
(Ohms) Code (Percent)
10 100 2.40
20 200 1.90
50 500 1.40
100 101 1.00
200 201 0.86
500 501 0.89
1,000 102 0.72
2,000 202 0.58
5,000 502 0.43
10,000 103 0.34
20,000 203 0.31
50,000 503 0.24
REV. 04/14
TOLERANCES: ± 0.25 EXCEPT WHERE NOTED
(.010)
DIMENSIONS: MM
(INCHES)
Popular values listed in boldface. Special
resistances available.
3057L
Common Dimensions
3057J
3057P
3057Y
7.62
(.300)
17.78
(.700)
6.35
(.250)
23
12.70 ± .79
(.500 ± .031)
1
2.54
(.100)
2.54
(.100)
.71 ± .03
(.028 ± .001) DIA. TYP.
13GREEN
CW
CLOCKWISE
YELLOW
CCW
2WIPERRED
*RoHS COMPLIANT
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Bourns:
3057Y-1-202 3057Y-1-203 3057Y-1-200 3057Y-1-201 3057Y-1-253 3057Y-1-251 3057Y-1-252 3057L-1-503
3057J-1-503 3057J-1-500 3057J-1-501 3057L-1-501 3057J-1-502 3057L-1-502 3057L-1-500 3057P-1-103 3057P-
1-100 3057P-1-102 3057P-1-101 3057Y-1-500 3057Y-1-503 3057Y-1-501 3057Y-1-502 3057L-1-502M 3057Y-1-
503M 3057Y-1-502M 3057J-1-502M 3057P-1-500M 3057J-1-500M 3057L-1-503M 3057L-1-500M 3057Y-1-403
3057P-1-201 3057P-1-200 3057P-1-202 3057P-1-203 3057L-1-253 3057J-1-251 3057J-1-203 3057J-1-201
3057L-1-203 3057J-1-252 3057L-1-201 3057L-1-200 3057L-1-202 3057J-1-202 3057J-1-200 3057Y-1-102 3057Y-
1-100 3057Y-1-103 3057Y-1-101 3057P-1-102M 3057Y-1-102M 3057J-1-102M 3057P-1-100M 3057L-1-100M
3057L-1-102M 3057Y-1-100M 3057P-1-101M 3057J-1-100M 3057J-1-101M 3057L-1-101M 3057J-1-103M 3057Y-
1-103M 3057L-1-103M 3057P-1-103M 3057Y-1-101M 3057P-1-201M 3057L-1-201M 3057Y-1-203M 3057J-1-201M
3057Y-1-201M 3057P-1-203M 3057L-1-203M 3057J-1-203M 3057Y-1-202M 3057L-1-202M 3057P-1-202M
3057L-1-200M 3057J-1-202M 3057L-1-103 3057J-1-103 3057J-1-101 3057L-1-101 3057J-1-102 3057L-1-102
3057L-1-100 3057Y-1-351 3057Y-1-501M 3057P-1-503M 3057J-1-503M 3057P-1-501M 3057J-1-501M 3057L-1-
501M 3057P-1-500 3057P-1-503 3057P-1-502 3057P-1-501 3057P-1-253 3057P-1-252
