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Features
■ 1-1/4 ” Rectangular / Multiturn
Wirewound / Industrial / Sealed
■ For trimmer applications/processing
guidelines, click here
■ Panel mount option available
■ Listed on the QPL for style RT12 per
MIL-PRF-27208
■ RoHS compliant*
3057 - Trimpot ? Trimming Potentiometer
Electrical Characteristics
Product Dimensions
Standard Resistance Range
.................................. 10 to 50K ohms
(see standard resistance table)
Resistance Tolerance ............. ±5 % std.
(tighter tolerance available)
3057L
Common Dimensions
31.75
(1.25)
25.4
3.18
(.125 )
3057Y
Absolute Minimum Resistance
.......................... 0.1 % or 1 ohm max.
(whichever is greater)
(1.000)
1.47 ± .56
(.058 ± .022)
1
2
7.62
(.300)
17.78
3
6.35
(.250)
(.025)
(.031)
Noise .....................100 ohms ENR max.
Resolution ........... See Resistance Table
Insulation Resistance ............... 500 vdc.
1,000 megohms min.
Dielectric Strength
2.36
DIA.
(.093)
MTG. HOLES (2)
4.83
X
X
ADJ. SLOT
2.92 ± .38 DIA.
(.115 ± .015)
.64
WIDE
.79
DEEP
2.54
(.100)
(.700)
TYP.
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
(.190)
6.10
(.240)
152.4
LEADS MIN. LENGTH
(6.000)
8.00 ± .38
(.315 ± .015)
6.10
(.240)
TYP.
12.70 ± .79
(.500 ± .031)
2.54
(.100)
.71 ± .03 DIA. TYP.
(.028 ± .001)
Temperature Range ... -55 °C to +150 °C
Temperature Coe? cient ..... ±50 ppm/°C
Seal Test ......................85 °C Fluorinert?
(pin styles only)
2.67
(.105 )
3.43 ± .38
(.135 ± .015)
Standard Resistance Table
Nominal
Resistance Resistance Resolution
Humidity .......MIL-STD-202 Method 106
96 hours
2 % Δ TR, 100 Megohms IR)
Vibration ............. 30 G (1 % Δ TR; 0.5 %
+ resolution Δ VR)
Shock ............... 100 G (1 % Δ TR; 0.5 %
+ resolution Δ VR)
Load Life.... 1,000 hours 1 watt @ 70 °C
(2 % Δ TR)
Rotational Life ..... 200 cycles (2 % Δ TR)
3057J
1
2
3
7.62
(.300)
3.80
(.150)
6.35
(.250)
(Ohms)
10
20
50
100
200
500
1,000
2,000
5,000
10,000
20,000
50,000
Code
100
200
500
101
201
501
102
202
502
103
203
503
(Percent)
2.40
1.90
1.40
1.00
0.86
0.89
0.72
0.58
0.43
0.34
0.31
0.24
Physical Characteristics
Torque............................. 8.0 oz-in. max.
17.78
(.700)
.71 ± .03 DIA. TYP.
(.028 ± .001)
Popular values listed in boldface. Special
resistances available.
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,
3057P
2.54
(.100)
.71 ± .03
How To Order
Model
Style
3057 L - 1 - 103 M
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
2
1
3
17.78
(.700)
22.86
(.900)
DIMENSIONS:
6.60
(.260)
MM
(INCHES)
(.028 ± .001)
DIA. TYP.
12.70 ± .79
(.500 ± .031)
Standard or Modi?ed
Product Indicator
-1 = Standard Product
Resistance Code
Optional Su? x Letter
M = Panel Mount
(Factory Installed)
RED
2
WIPER
TOLERANCES: ±
0.25
(.010)
EXCEPT WHERE NOTED
REV. 04/14
YELLOW
CCW
1
CLOCKWISE
3
GREEN
CW
*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.
Speci?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 speci?c applications.
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