3250W-1-253 Bourns Inc., 3250W-1-253 Datasheet
3250W-1-253
Manufacturer Part Number
3250W-1-253
Description
TRIMPOT 25K OHM 1/2" SQ WW MT
Manufacturer
Bourns Inc.
Series
3250 - Sealedr
Type
Trimmerr
Datasheet
1.3250W-1-102.pdf
(1 pages)
Specifications of 3250W-1-253
Number Of Turns
25
Termination Style
PC Pin
Temperature Coefficient
±50ppm/°C
Resistance (ohms)
25K
Power (watts)
1W
Tolerance
±5%
Adjustment Type
Top Adjustment
Resistive Material
Wirewound
Mounting Type
Through Hole
Package / Case
Square - 0.500" L x 0.220" W x 0.500" H (12.70mm x 5.59mm x 12.70mm)
Resistance
25kohm
Power Rating
1W
Tolerance (+ Or -)
5%
Technology
Wirewound
Mounting Style
Through Hole
Operating Temp Range
-65C to 150C
Failure Rate
Not Required
Shaft Diameter (mm)
1.91mm
Product Diameter (mm)
Not Requiredmm
Product Length (mm)
12.7mm
Product Height (mm)
13.59mm
Product Depth (mm)
5.59mm
Operating Temperature Range
- 65 C to + 150 C
Element Type
Wire Wound
Dimensions
12.7 mm W x 12.7 mm L
Product
Trimmers
Taper
Linear
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Standard Resistance Range
Resistance Tolerance ............. ±5 % std.
Absolute Minimum Resistance
Noise .....................100 ohms ENR max.
Resolution ........... See Resistance Table
Insulation Resistance ............... 500 vdc.
Dielectric Strength
Adjustment Travel .............25 turns nom.
Power Rating @ 85 °C ............... 1.0 watt
Power Rating @ 150 °C ................ 0 watt
Temperature Range ... -65 °C to +150 °C
Temperature Coeffi cient ..... ±50 ppm/°C
Seal Test ...................... 85 °C Fluorinert
Humidity .......MIL-STD-202 Method 106
Vibration ......................................... 30 G
Shock ........................................... 100 G
Load Life
Rotational Life .......................200 cycles
Torque ............................. 5.0 oz-in. max.
Mechanical Stops ................. Wiper idles
Terminals ..Solderable printed circuit pins
Weight ....................................... 0.06 oz.
Machine Screw Mounting
Marking .........Manufacturer’s trademark,
Wiper ............... 50 % (Actual TR) ±10 %
Flammability ..........................U.L. 94V-0
Standard Packaging
Adjustment Tool ..............................H-90
Electrical Characteristics
Environmental Characteristics
Physical Characteristics
Sea Level............................. 1,000 vac
80,000 Feet ............................ 400 vac
Torque .......................... 12 oz-in. max.
P&W Styles ...............25 pcs. per tube
L Style ........................25 pcs. per bag
.................................. 10 to 50K ohms
.......................... 0.1 % or 1 ohm max.
............ 1,000 hours 1.0 watt @ 85 °C
Flexible leads (7 strands of 30 AWG)
resistance code, terminal numbers,
(1 % ΔTR; 0.5 % + resolution ΔVR)
(1 % ΔTR; 0.5 % + resolution ΔVR)
date code, manufacturer’s model
(see standard resistance table)
(2 % ΔTR; 100 Megohms IR)
(tighter tolerance available)
(2 % ΔTR; 500 ohms ENR)
(2 % ΔTR; 500 ohms ENR)
(whichever is greater)
1,000 megohms min.
number and style
(pin styles only)
†
Features
■
■
■
■
3250P
Common Dimensions
(Pin Styles)
(.500)
3250W
3250W-66
3250L
3250 - 1/2 ” Square Trimpot
(.220)
(.525 ± .025)
5.59
12.7
TYP.
13.33 ± .64
(.500)
13.21
(.520)
Product Dimensions
12.7
Multiturn / Wirewound / Sealed
Listed on the QPL
MIL-R-27208 and
High-Rel MIL-R-39015
Panel mount option available
RoHS compliant*
(.060)
1.52
(.187)
4.75
TYP.
TYP.
12.70
(.500)
TYP.
(.070)
1.78
2
TYP.
2
(.028 ± .003)
(.035)
TYP.
.89
1
.71 ± .08
TYP.
1
(.250)
6.35
(.055)
3
3
(.100)
1.40
(.100)
2.54
2.54
for style
RTR22
LENGTH
(.500)
12.7
DIA. TYP.
(.100)
(.078)
1.98
(.100)
2.54
(.520)
2
2.54
13.21
X
X
ADJ. SLOT
per
(.075 ± .01)
(.025)
(.020)
1.91 ± .25
RT22
DIA. THRU
(2 PLACES)
.51
.64
3
1
TYP.
(.110)
(.250)
(.110)
(.250)
(6.00)
2.79
152.4
6.35
2.79
6.35
Customers should verify actual device performance in their specifi c applications.
(.093)
2.36
DEEP
(.100)
(.035)
WIDE
2.54
.89
(.100)
2.54
per
MIN.
DIA. THRU
(2 PLACES)
(.100)
DIA.
TYP.
2.54
(.250)
6.35
®
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
■
Trimming Potentiometer
Model
Style
Standard or Modifi ed
Product Indicator
Resistance Code
Optional Suffi x Letter
Consult factory for other available options.
Popular values listed in boldface. Special
resistances available.
TOLERANCES: ±
How To Order
For trimmer applications/processing
guidelines,
Resistance
-1 = Standard Product
M = Panel Mount
Standard Resistance Table
Specifi cations are subject to change without notice.
CCW
(Ohms)
“Trimpot” is a registered trademark of Bourns, Inc.
10,000
20,000
25,000
50,000
1,000
2,000
5,000
100
200
500
†“Fluorinert” is a registered trademark of 3M Co.
10
20
50
(Factory Installed)
1
DIMENSIONS:
click here
CLOCKWISE
(.010)
0.25
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
253
503
2
3250 L - 1 - 103 M
(INCHES)
WIPER
EXCEPT WHERE NOTED
MM
Resolution
3
(Percent)
Nominal
REV. 08/10
1.30
1.00
0.80
0.90
0.70
0.60
0.40
0.30
0.25
0.19
0.16
0.14
0.13
CW
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