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Features
■ Multiturn / Wirewound / Industrial / Sealed
■ Listed on the QPL per MIL-PRF-27208
■ For trimmer applications/processing
guidelines, click here
RT26 - 1/4 ” Square Trimpot® Trimming Potentiometer
Electrical Characteristics
Standard Resistance Range
.....................................10 to 5K ohms
(see standard resistance table)
Resistance Tolerance .............. ±5 % std.
Absolute Minimum Resistance
.........................0.25 % or 1 ohm max.
(whichever is greater)
Noise .....................100 ohms ENR max.
Resolution.............. See resistance table
Insulation Resistance ............... 500 vdc.
1,000 megohms min.
Dielectric Strength
Sea Level ............................... 600 vac
80,000 Feet ............................ 250 vac
Adjustment Angle.............. 11 turns nom.
Environmental Characteristics
Power Rating
85 °C .................................... 0.25 watt
150 °C ....................................... 0 watt
Temperature Range ....-55 °C to +150 °C
Temperature Coefficient ......±50 ppm/°C
Seal Test ...................... 85 °C Fluorinert*
Humidity........ MIL-STD-202 Method 106
(1 % ΔTR, 10 Megohms IR)
Vibration ......................................... 20 G
(1 % ΔTR; 1% + resolution ΔVR)
Shock............................................ 100 G
(1 % ΔTR; 1 % + resolution ΔVR)
Load Life1,000 hours 0.25 watt @ 85 °C
(2 % ΔTR; 2 % + resolution ΔVR)
Rotational Life........................200 cycles
(2 % ΔTR)
Physical Characteristics
Torque............................. 3.0 oz-in. max.
Mechanical Stops ................. Wiper idles
Terminals ..... MIL-STD-202; Method 208
Weight ..................................... 0.015 oz.
Marking ................. Mil-spec part number
Wiper ............... 50 % (Actual TR) ±10 %
Flammability ............................ UL 94V-0
Standard Packaging ..... 50 pcs. per tube
Adjustment Tool .............................. H-90
Product Dimensions
How To Order
RT26C2X
Common Dimensions
MIL-PRF-27208
RT26 C2 X 101
Model
6.35 ± .51
(.250 ± .020)
Characteristic
C = ±50 ppm/°C Temp. Coeff. Max.
.89
(.035)
2 = 85 °C Rating Temp.
150 °C Max. Operating Temp.
1 2 3
6.35 ± .51
(.250 ± .020)
Terminal Style
4.78 ± .38
(.188 ± .015)
.76
(.030)
2.54
(.100)
Resistance Code
Standard Resistance Table
2.54
(.100)
1.02 ± .38
(.040 ± .015)
2.54
(.100)
4.32 ± .38
(.170 ± .015)
1.27
(.050)
1.27
(.050)
ADJ. SLOT
1.78 DIA.
(.070)
.51
WIDE
X
(.020)
.51
DEEP
X
(.020)
.41 ± .03
DIA.
(.016 ± .001)
Resistance
(Ohms)
10
20
50
100
200
500
1,000
2,000
5,000
Resistance
Code
100
200
500
101
201
501
102
202
502
Nominal
Resolution
(Percent)
1.90
1.50
1.23
1.00
0.94
0.58
0.50
0.45
0.34
RT26C2W
1.27
(.050)
1 2 3
6.35 ± .51
(.250 ± .020)
4.32 ± .38
(.170 ± .015)
1.27
(.050)
.89
(.035)
MM
(INCHES)
DIMENSIONS:
TOLERANCES: ±
0.25
(.010)
EXCEPT WHERE NOTED
2
CCW
WIPER
3
1
CW
CLOCKWISE
REV. 04/14
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
*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.
Specifications are subject to change without notice. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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