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Features

■

Multiturn/ Wirewound / Industrial / Sealed

■

Listed on the QPL

for style

RT24

per

■

For trimmer applications/processing

guidelines,

click here

MIL-R-27208 and

RTR24

per

High-Rel MIL-R-39015

■

Panel mount option available

■

RoHS compliant*

3290 - 3/8 ” 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 Coeﬃcient ..... ±50 ppm/°C

Seal Test ...................... 85 °C Fluorinert

†

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 1.0 watt @ 85 °C

(2 %

ΔTR;

500 ohms ENR)

Rotational Life .......................200 cycles

(2 %

ΔTR;

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.........Manufacturer’s trademark,

resistance code, wiring diagram,

date code, manufacturer’s 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)

1.52**

(.060)

How To Order

3290 H - 1 - 103 M

Model

1.02

(.040)

9.53 ±.38**

(.375 ±.015)

Style

Standard or Modiﬁed

Product Indicator

-1 = Standard Product

Resistance Code

Optional Suﬃx Letter

M = Panel Mount

(Factory Installed)

Consult factory for other available options.

9.53 ±.38**

(.375 ±.015)

3 2 1

8.00 ±.38

(.315 ±.015)

TYP.**

1.91

(.075)

.51 ±.03

(.020 ±.001)

DIA. TYP.**

2.54

(.100)

ADJ. SLOT

1.52 DIA.

(.060)

.51

WIDE

(.020)

.64

DEEP

(.025)

2.54

(.100)

4.75

(.187)

Standard Resistance Table

Resistance

(Ohms)

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

**Common dimensions

3290P

4.75

(.187)

4.75

(.187)

2.54

(.100)

2.54

(.100)

2.54

(.100)

3290W

2.54

(.100)

Popular values listed in boldface. Special

resistances available.

1.91

(.075)

2.54

(.100)

CCW

WIPER

CLOCKWISE

DIMENSIONS:

TOLERANCES: ±

0.25

(.010)

(INCHES)

EXCEPT WHERE NOTED

REV. 04/14

*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.

Speciﬁcations 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 speciﬁc applications.