|
3290H-1-103 Datasheet, PDF (1/1 Pages) Bourns Electronic Solutions – 3290 - 3/8 ” Square Trimpot® Trimming Potentiometer | |||
|
*RoHS COMPLIANT
Features
â Multiturn/ Wirewound / Industrial / Sealed
â Listed on the QPL for style RT24 per
MIL-R-27208 and RTR24 per
High-Rel MIL-R-39015
â Panel mount option available
â RoHS compliant*
â For trimmer applications/processing
guidelines, click here
3290 - 3/8 â Square Trimpot® Trimming Potentiometer
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 standard resistance table)
Insulation Resistance ............... 500 vdc.
1,000 megohms min.
Dielectric Strength
Sea Level............................. 1,000 vac
80,000 Feet ............................ 350 vac
Adjustment Travel.............25 turns nom.
Environmental Characteristics
Power Rating @ 85 °C ............... 1.0 watt
Power Rating @ 150 °C ................ 0 watt
Temperature Range ... -65 °C to +150 °C
Temperature Coefï¬cient ..... ±50 ppm/°C
Seal Test ......................85 °C Fluorinertâ
Humidity .......MIL-STD-202 Method 106
96 hours (2 % ÎTR; 100 Megohms IR)
Vibration ......................................... 30 G
(1 % ÎTR; 0.5 % + resolution ÎVR)
Shock ........................................... 100 G
(1 % ÎTR; 0.5 % + resolution ÎVR)
Load Life ..1,000 hours 1.0 watt @ 85 °C
(2 % ÎTR; 500 ohms ENR)
Rotational Life .......................200 cycles
(2 % ÎTR; 500 ohms ENR)
Physical Characteristics
Torque............................. 5.0 oz-in. max.
Mechanical Stops................. Wiper idles
Terminals Solderable printed circuit pins
Weight ..................................... 0.025 oz.
Marking.........Manufacturerâs trademark,
resistance code, wiring diagram,
date code, manufacturerâs model
number and style
Wiper ............... 50 % (Actual TR) ±10 %
Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool..............................H-90
Product Dimensions
3290H
Common Dimensions
3.81
(.150)
1.27**
(.050)
1.02
(.040)
9.53 ±.38**
(.375 ±.015)
1.52**
9.53 ±.38**
(.060)
(.375 ±.015)
3 21
8.00 ±.38
(.315 ±.015)
TYP.**
.51 ±.03
1.91
(.075)
ADJ. SLOT
(.020 ±.001)
DIA. TYP.**
1.52 DIA.
(.060)
2.54
(.100)
2.54
X
.51
(.020)
WIDE
X
.64
(.025)
DEEP
4.75
(.187)
(.100)
**Common dimensions
3290P
4.75
(.187)
2.54
(.100)
2.54
(.100)
1
4.75 2
(.187) 3
2.54
(.100)
3290W
3
2
1
1.19
(.075)
2.54
(.100)
2.54
(.100)
2 WIPER
CCW 1
CLOCKWISE
3 CW
DIMENSIONS:
TOLERANCES: ±
0.25
(.010)
MM
(INCHES)
EXCEPT WHERE NOTED
How To Order
3290 H - 1 - 103 M
Model
Style
Standard or Modiï¬ed
Product Indicator
-1 = Standard Product
Resistance Code
Optional Sufï¬x Letter
M = Panel Mount
(Factory Installed)
Consult factory for other available options.
Standard Resistance Table
Resistance
(Ohms)
10
20
50
100
200
500
1,000
2,000
5,000
10,000
20,000
25,000
50,000
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
253
503
Nominal
Resolution
(Percent)
1.11
0.93
0.62
0.60
0.54
0.42
0.33
0.26
0.20
0.17
0.14
0.13
0.11
Popular values listed in boldface. Special
resistances available.
REV. 08/10
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
âTrimpotâ is a registered trademark of Bourns, Inc.
â âFluorinertâ is a registered trademark of 3M Co.
Speciï¬cations are subject to change without notice.
Customers should verify actual device performance in their speciï¬c applications
|