3252 Datasheet, PDF (1/1 Pages) Bourns Electronic Solutions – 1/2 ” Square Trimpot® Trimming Potentiometer

*RoHS ^{VCEOARMVSAPIOILLINAASBNLTE}
Features
■ Multiturn / Cermet / Sealed
■ Listed on the QPL for style RJ22 per
MIL-R-22097
■ Panel mount option available
■ RoHS compliant* version available
■ For trimmer applications/processing
guidelines, click here
3252 - 1/2 ” Square Trimpot^® Trimming Potentiometer
Electrical Characteristics
Product Dimensions
Standard Resistance Range
................................10 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 % or 2 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............................. 1,000 vac
80,000 Feet ............................ 400 vac
Effective Travel .................25 turns nom.
3252P
Common Dimensions
(Pin Styles)
12.7
(.500)
TYP.
ADJ. SLOT
2.03
(.080
±
±
.38
.015)
DIA.
13.21 _TYP.
(.520)
X
.64
(.025)
WIDE
1.98 DIA. THRU
X
.50
(.020)
DEEP
(.078) (2 PLACES)
12.7
(.500)
TYP.
1.78
(.070)
5.59
TYP. _{.71 ± .08}
(.028 ± .003) ^{DIA. TYP.}
13
2.54
(.100)
2.54
(.220)
(.100)
1.52
2
(.060)
13.34 ± .64
(.525 ± .025)
6.35
(.250)
2.54 _6.35
(.100) _(.250)
Environmental Characteristics
Power Rating @ 85 °C (400 volts max.)
............................................. 0.75 watt
Power Rating @ 150 °C ................ 0 watt
Temperature Range ... -65 °C to +150 °C
Temperature Coefficient ... ±100 ppm/°C
Seal Test ......................85 °C Fluorinert†
(pin styles only)
Humidity ......MIL-STD-202 Method 103;
96 hours (1 % ΔTR; 100 Megohms IR)
Vibration ....... 30 G (1 % ΔTR; 1 % ΔVR)
Shock ......... 100 G (1 % ΔTR; 1 % ΔVR)
Load Life... 1,000 hours 0.75 watt @ 85 °C
..................(3 % ΔTR; 3 % or 3 ohms,
whichever is greater, CRV)
Rotational Life .......................200 cycles
(2 % ΔTR; 3 % or 3 ohms,
whichever is greater, CRV)
Physical Characteristics
Torque............................. 5.0 oz-in. max.
Mechanical Stops................. Wiper idles
Terminals Solderable printed circuit pins
Flexible leads ......(7 strands of 30 AWG)
Weight ..................................... 0.065 oz.
Wiper ............... 50 % (Actual TR) ±10 %
Flammability ..........................U.L. 94V-0
Machine Screw Mounting
Torque.............................. 12 oz-in. max.
Marking.........Manufacturer’s trademark,
resistance code, wiring diagram,
date code, manufacturer’s model
number and style
Standard Packaging
X, P&W Styles ...........25 pcs. per tube
L Style ........................25 pcs. per bag
Adjustment Tool..............................H-90
3252W
5.59
(.220)
2.54
(.100)
21 ³
2.79
(.110)
2.54
(.100)
3252L
13.21
(.520)
1.52
(.060)
12.70
(.500)
4.75
(.187)
1.52
(.060)
6.35
(.250)
2.36 _TYP.
(.093)
LENGTH
.89
(.035)
TYP.
152.4
(6.00)
MIN.
12.70
(.500)
3252X
2.54
(.100)
21 ³
5.59
(.220)
1.78
2.54 _(.070)
(.100)
6.35
(.250)
DIMENSIONS:
TOLERANCES: ±
0.25
(.010)
MM
(INCHES)
EXCEPT WHERE NOTED
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
“Trimpot” is a registered trademark of Bourns, Inc.
†“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.
How To Order
3252 L - 1 - 103 M LF
Model
Style
Standard or Modified
Product Indicator
-1 = Standard Product
Resistance Code
Optional Suffix Letter
M = Panel Mount
(Factory Installed)
Terminations
LF = 100 % Tin-plated (RoHS compliant)
Blank = 90 % Tin / 10 % Lead-plated
(Standard)
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
100,000
200,000
500,000
1,000,000
2,000,000
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
253
503
104
204
504
105
205
Popular values listed in boldface. Special
resistances available.
RED ₂ WIPER
YELLOW ₁
CCW
CLOCKWISE
3 GREEN
CW
REV. 08/10