BOURNS 3296 Service Manual

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
†“Fluorinert” is a registered trademark of 3M Co.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.

3296 - 3/8 ” Square Trimming Potentiometer

Features

■ Multiturn / Cermet / Industrial / Sealed

■ 5 terminal styles

■ Tape and reel packaging available

■ Chevron seal design

■ Listed on the QPL for style RJ24 per

MIL-R-22097 and RJR24

per High-Rel

Mil-R-39035

■ Mounting hardware available

(H-117P)

■ RoHS compliant* version available

Electrical Characteristics

Standard Resistance Range

........................10 ohms to 2 megohms

(see standard resistance table)

Resistance Tolerance ............±10 % std.

(tighter tolerance available)

Absolute Minimum Resistance

..............................1 % or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

...........................1.0 % or 3 ohms max.

(whichever is greater)

Adjustability

Voltage.....................................±0.01 %

Resistance...............................±0.05 %

Resolution.....................................Infinite

Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................900 vac

70,000 Feet...............................350 vac

Effective Travel..................25 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

70 °C ........................................0.5 watt

125 °C .........................................0 watt

Temperature Range

..................................-55 °C to +150 °C

Temperature Coefficient ....±100 ppm/°C

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

†

Humidity........MIL-STD-202 Method 103

96 hours

(2 % ∆TR, 10 Megohms IR)

Vibration.........20 G (1 % ∆TR; 1 % ∆VR)

Shock...........100 G (1 % ∆TR; 1 % ∆VR)

Load Life

................1,000 hours 0.5 watt @ 70 °C

(3 % ∆TR; 3 % or 3 ohms,
whichever is greater, CRV)

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

(4 % ∆TR; 3 % or 3 ohms,
whichever is greater, CRV)

Physical Characteristics

Torque .............................3.0 oz-in. max.

Mechanical Stops..................Wiper idles

Terminals ........................Solderable pins

Weight ........................................0.03 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

1

3

CW

CLOCKWISE

CCW

2

WIPER

1.27 ± 0.1

(.050 ± .004)

4.83 ± .13

(.190 ± .005)

9.53

(.375)

1.27 ± 0.1

(.050 ± .004)

5.23

(.206)

2

3

1

2

3

1

2.41

(.095)

2

3

1

8.26 ± .64

(.325 ± .025)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.41

(.095)

10.03
(.395)

1.52

(.060)

.38

(.015)

6.40 ± 1.32

(.252 ± .052)

.51 ± .03

(.020 ± .001)

2.54

(.100)

2.54

(.100)

MIN.

DIA.

ADJ. SLOT

2.19
(.086)
.56
(.022)
.76
(.030)

WIDE

X

X

DEEP

DIA.

1

2

3

1.14

(.045)

2

3

1

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

1.14

(.045)

Resistance Resistance

(Ohms) Code

10 100
20 200
50 500
100 101
200 201
500 501
1,000 102
2,000 202
5,000 502
10,000 103
20,000 203
25,000 253
50,000 503
100,000 104
200,000 204
250,000 254
500,000 504
1,000,000 105
2,000,000 205

Standard Resistance Table

DIMENSIONS ARE:

MM

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Popular values listed in boldface. Special
resistances available.

How to Order

3296 W - 1 - 103 __ LF

Model
Style
Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code
Packaging Designator

Blank = Tube (Standard)

R = Tape and Reel (X and W Pin Styles

Only)

A = Ammo Pack (X and W Pin Styles Only)

Terminations

LF = 100 % Tin-plated (RoHS compliant)

Blank = 90 % Tin / 10 % Lead-plated

(Standard)

Consult factory for other available options.

Product Dimensions

Common Dimensions

3296P

3296W

3296X

3296Y

3296Z

*RoHS COMPLIANT

VERSIONS

AVAILABLE

深圳市星程电子有限公司 TEL:[phone] FAX:[phone]

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

SIDE ADJUST
3296X-1

18 ± .76

(.709 ± .030)

8.89 + .76 /- .51

(.350 + .030 /- .020)

28.07 ± .76

(1.105 ± .030)

3.81 ± .71

(.15 ± .028)

1

2

3

4.83 + .30/ -.25

(.190 + .012/ -.010)

2.41 ± .25

(.095 ± .010)

12.70
(.500)

REF.

12.7 + 0.3/ - 0.25

(.500 + .012/ - .010)

18 + 1.0/ - 0.5

(709 + .040/ - .020)

4.0 ± .03

(.157 ± .001)

DIA.

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

MM

(INCHES)

12.70

(.500)

TOP ADJUST
3296W-1

29.59 ± .76

(1.165 ± .030)

1

2

3

REF.

4.83 + .30/ -.25

(.190 + .012/ -.010)

2.41 ± .25

(.095 ± .010)

18 ± .76

(.709 ± .030)

4.0 ± .03

(.157 ± .001)

DIA.

12.7 + 0.3/ - 0.25

(.500 + .012/ - .010)

18 + 1.0/ - 0.5

(709 + .040/ - .020)

8.89 + .76 /- .51

(.350 + .030 /- .020)

3.81 ± .71

(.150 ± .028)

.51 ± .051

(020 ± .002)

DIA. TYP.

(.100)

2.54

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

MM

(INCHES)

Packaging Specifications

Meets EIA Specification 468.

3296 - 3/8 ” Square Trimming Potentiometer

REV. 10/05

深圳市星程电子有限公司 TEL:[phone] FAX:[phone]

3266 - 1/4 ” Square Trimming Potentiometer

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.

†“Fluorinert” is a registered trademark of 3M Co.

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

Features

■ Multiturn / Cermet / Industrial / Sealed

■ Standoffs allow thorough PC board

washing

■ Tape and reel packaging available

■ Patent #4427966 drive mechanism

■ RoHS compliant* version available

Electrical Characteristics

Standard Resistance Range

....................................10 to 1 megohm

(see standard resistance table)

Resistance Tolerance ............±10 % std.

Absolute Minimum Resistance

..............................1 % or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

...........................3.0 % or 3 ohms max.

(whichever is greater)

Adjustability

Voltage.....................................±0.02 %

Resistance...............................±0.05 %

Resolution.....................................Infinite

Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................600 vac

80,000 Feet...............................250 vac

Effective Travel..................12 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

70 °C ......................................0.25 watt

150 °C .........................................0 watt

Temperature Range ....-55 °C to +150 °C

Temperature Coefficient ....±100 ppm/°C

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

†

Humidity........MIL-STD-202 Method 103

96 hours (2 % ∆TR, 10 Megohms IR)

Vibration.........30 G (1 % ∆TR; 1 % ∆VR)

Shock...........100 G (1 % ∆TR; 1 % ∆VR)

Load Life ...1,000 hours 0.25 watt 70 °C

(3 % ∆TR; 3 % CRV)

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

(4 % ∆TR; 3 % or 3 ohms,
whichever is greater, CRV)

Physical Characteristics

Torque .............................3.0 oz-in. max.

Mechanical Stops..................Wiper idles

Terminals ........................Solderable pins

Weight ......................................0.015 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

1

3

CW

CLOCKWISE

CCW

2

WIPER

How to Order

3266 W - 1 - 103 __ LF

Model
Style
Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code
Packaging Designator

Blank = Tube (Standard)

R = Tape and Reel (Z and Y Pin Styles

Only)

A = Ammo Pack (Z and Y Pin Styles Only)

Terminations

LF = 100 % Tin-plated (RoHS compliant)

Blank = 90 % Tin / 10 % Lead-plated

(Standard)

Consult factory for other available options.

DIMENSIONS ARE:

MM

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

**COMMON DIMENSIONS

*RoHS COMPLIANT

VERSIONS

AVAILABLE

深圳市星程电子有限公司 TEL:[phone] FAX:[phone]

3266W
Common Dimensions

(.285 ±.020)

4.78 ±.38**
(.188 ±.015)

3266P

3266X

4.50 ±.38**
(.177 ±.015)

7.24 ±.51

2.54

(.100)

0.76 ± .25

(.030 ± .010)

(.100 ± .010)

2.54 ± .25

(.100 ± .010)

2.54

(.100)

1.24 ±.25**

(.049 ±.010)

TYP.**

(.040)

1.52

(.06)

2.54 ± .25

(.100)

1.02

(.040)

1.02

2.54

123

1.02

(.040)

123

1.02 ±.25

(.040 ±.010)

123

(.264 ±.015)

1.22 ±.25

(.048 ±.010)

6.71 ±.38
TYP.

ADJ. SLOT

1.78
DIA.

(.070)
.51

WIDE

X

(.020)
.64

DEEP

X

(.025)

.46 ±.13

(.018 ±.005)

.46 ±.03

2.54

(.100)

4.42 ± .51

6.48 ±.51

1.24 ±.25

(.049 ±.010)

1.22 ±.25

(.048 ±.010)

.46 ±.13

(.018 ±.005)

.76

(.030)

DIA.**

2.54

(.100)

MIN.**

(.018 ±.001)

.76**
(.030)

(.174 ±.020)

(.255 ±.020)

2.54 ± .25

(.100 ± .010)

2.54

(.100)

3266Y

4.50 ±.38

(.177 ±.015)

MIN.

3266Z

(.177 ±.015)

1.22 ±.25

(.048 ±.010)

0.46 ±.13

(.018 ±.005)

4.32

(.170)

1.24 ±.25**

(.049 ±.010)

4.50 ±.38

0.38

(.015)

4.32

(.170)

1.24 ±.25**
(.049 ±.010)

2.54

(.100)

2.16

(.085)

MIN.

2.54

(.100)

2.16

(.085)

1.02

(.040)

123

123

6.71 ±.38

(.264 ±.015)

1.02

(.040 )

6.85 ±.51

(.270 ±.020)

2.54

(.100)

3.18

(.125)

7.24 ±.51

(.285 ±.020)

1.22 ±.25

(.048 ±.010)

6.85 ±.51

(.270 ±.020)

2.54

(.100)

3.18

(.125)

4.50 ±.38

(.177 ±.015)

Resistance Resistance

(Ohms) Code

10 100
20 200
50 500
100 101
200 201
500 501

1,000 102
2,000 202
5,000 502
10,000 103
20,000 203

25,000 253
50,000 503
100,000 104
200,000 204
250,000 254
500,000 504
1,000,000 105

Standard Resistance Table

Popular distribution resistance values listed in
boldface. Special resistances available.

Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.

SIDE ADJUST
3266Z-1

12.70
(.500)

18 ± .76

(.709 ± .030)

12.7 + 0.3/ - 0.25

(.500 + .012/ - .010)

18 + 1.0/ - 0.5

(709 + .040/ - .020)

24.9 + .76

(.980 + .030)

4.0 ± .03

(.157 ± .001)

3.81 ± .71

(.150 ± .028)

1

2

3

4.32 ± .38

(.170 ± .015)

2.16 ± .25

(.085 ± .010)

.43 ± .05

(017 ± .002)

8.9 + .76 /- .5

(.035 + .030/ .020)

REF.

DIA.

DIA. TYP.

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

MM

(INCHES)

TOP ADJUST
3266Y-1

12.70

(.500)

18 ± .76

(.709 ± .030)

4.0 ± .03

(.157 ± .001)

3.81 ± .71

(.150 ± .028)

1

2

3

25.9 ± 0.76

(1.020 ± .030)

18 + 1.0/ - 0.5

(709 + .040/ - .020)

12.7 + 0.3/ - 0.25

(.500 + .012/ - .010)

4.32 ± .38

(.170 ± .015)

2.16 ± .25

(.085 ± .010)

3.81 ± .71

(.150 ± .028)

REF.

DIA.

8.9 + .76 /- .5

(.035 + .030/ .020)

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

MM

(INCHES)

Packaging Specifications

Meets EIA Specification 468.

3266 - 1/4 ” Square Trimming Potentiometer

REV. 03/07

深圳市星程电子有限公司 TEL:[phone] FAX:[phone]