3296W-LTC-253LF Bourns Inc., 3296W-LTC-253LF Datasheet
![Trimmer Resistors - Multi Turn 3/8 SQ CERMET 25K SEALED TRIM POT](/photos/30/88/308800/3296p-ltc-202lf_sml.jpg)
3296W-LTC-253LF
Manufacturer Part Number
3296W-LTC-253LF
Description
Trimmer Resistors - Multi Turn 3/8 SQ CERMET 25K SEALED TRIM POT
Manufacturer
Bourns Inc.
Type
Trimmerr
Specifications of 3296W-LTC-253LF
Resistance
25kohm
Power Rating
1/2W
Tolerance (+ Or -)
10%
Number Of Turns
25Turn
Technology
Cermet
Mounting Style
Through Hole
Termination Style
Pin
Operating Temp Range
-55C to 150C
Failure Rate
Not Required
Shaft Diameter (mm)
2.19mm
Product Diameter (mm)
Not Requiredmm
Product Length (mm)
9.53mm
Product Height (mm)
11.55mm
Product Depth (mm)
4.83mm
Temperature Coefficient
±50
Tolerance
10 %
Element Type
Cermet
Product
Trimmers
Lead Free Status / RoHS Status
Compliant
Electrical Characteristics
Standard Resistance Range
Resistance Tolerance ........... ±10 % std.
Absolute Minimum Resistance
Contact Resistance Variation
Adjustability
Resolution ................................... Infi nite
Insulation Resistance ............... 500 vdc.
Dielectric Strength
Effective Travel .................25 turns nom.
Environmental Characteristics
Power Rating (300 volts max.)
Temperature Range
Temperature Coeffi cient
Seal Test ......................85 °C Fluorinert†
Humidity .......MIL-STD-202 Method 103
Vibration ....... 20 G (1 % ΔTR; 1 % ΔVR)
Shock ......... 100 G (1 % ΔTR; 1 % ΔVR)
Load Life
Rotational Life .......................200 cycles
Physical Characteristics
Torque ............................. 3.0 oz-in. max.
Mechanical Stops ................. Wiper idles
Terminals .......................Solderable pins
Weight ....................................... 0.03 oz.
Marking ........................... Manufacturer’s
Wiper .................................50 % ±10 %
Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90
*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.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
Voltage .................................. ±0.01 %
Resistance ............................ ±0.05 %
Sea Level................................ 900 vac
70,000 Feet ............................ 350 vac
70 °C ...................................... 0.5 watt
125 °C ....................................... 0 watt
End to End ...................... ±20 ppm/°C
Through the Wiper .......... ±50 ppm/°C
.................................. 2K to 25K ohms
........................... 1 % or 2 ohms max.
........................ 1.0 % or 3 ohms max.
............................... -55 °C to +150 °C
............. 1,000 hours 0.5 watt @ 70 °C
(see standard resistance table)
trademark, resistance code,
(2 % ΔTR, 10 Megohms IR)
(tighter tolerance available)
wiring diagram, date code,
(3 % ΔTR; 3 % or 3 ohms,
whichever is greater, CRV)
(4 % ΔTR; 3 % or 3 ohms,
whichever is greater, CRV)
manufacturer’s model
(whichever is greater)
(whichever is greater)
1,000 megohms min.
number and style
96 hours
Features
■
■
■
■
■
■
3296-LTC - 3/8 ” Square Trimpot
(.252 ± .052)
(.020 ± .001)
TOLERANCES: ±
NOTE: TCR through the wiper applies when
40 % or more of the resistance element is in the
circuit.
Common Dimensions
3296P
3296W
3296X
6.40 ± 1.32
(.015)
(.100)
3
.51 ± .03
2.54
2
Product Dimensions
.38
Low TCR
Multiturn / Cermet / Industrial / Sealed
3 terminal styles
Chevron seal design
Mounting hardware available (H-117P)
RoHS compliant* version available
(.100)
CCW
2.54
1
MIN.
1
DIA.
DIMENSIONS:
(.100)
2.54
CLOCKWISE
(.206)
5.23
(.010)
0.25
X
X
(.100)
ADJ. SLOT
(.086)
(.022)
(.030)
2
2.19
.56
2.54
.76
10.03
(.395)
WIPER
(INCHES)
(.100)
(.100)
2.54
(.050 ± .004)
EXCEPT WHERE NOTED
2.54
1.27 ± 0.1
WIDE
MM
DIA.
DEEP
(.100)
(.060)
(.100)
2.54
1.52
2.54
(.100)
2.54
3
2
1
3
2
1
3
CW
(.325 ± .025 )
(.050 ± .004)
(.190 ± .005 )
8.26 ± .64
1.27 ± 0.1
4.83 ± .13
(.375)
(.095)
(.095)
9.53
2.41
2.41
Applications
■
■
■
®
Popular values listed in boldface. Special
resistances available.
Model
Style
Product Indicator
Resistance Code
Terminations
Consult factory for other available options.
How To Order
Rheostat applications with wiper currents
less than 25 microamps
Process control instrumentation
Power supplies
Trimming Potentiometer
Standard Resistance Table
LF =
Blank = 90 % Tin / 10 % Lead-plated
Resistance
Model 3296-LTC is obsolete and not
(Ohms)
10,000
20,000
25,000
recommended for new designs.
1,000
2,000
5,000
100 % Tin-plated (RoHS compliant)
(Standard)
Model 3296
3296 W - LTC - 103 LF
is preferred.
Resistance
Code
102
202
502
103
203
253
REV. 11/09