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RT/RTR & RJ/RJR Series Trim Pots


RT/RTR and RJ/RJR series trim pots are made to military specifications and are listed on the QPL (Qualified Parts List). Which simply means that they are on a government approved list of parts that are approved for government and military use. RT/RJ series trim pots are made to the MIL-PRF-22097 and the RTR/RJR series trim pots are made to the MIL-PRF-39035. The major difference between RT/RJ and the RTR/RJR series is that the RTR/RJR trim pots are offered with a failure rate. A failure rate is the frequency at which a component fails during testing over a set period of time.

RJ12 trim-pot pot img

RTR/RJR series of trim pots are offered in three failure rate levels:
Note: Failure per 1000 hours of testing.

  • M = 1.0%
  • P = 0.1%
  • R = 0.01%

Although the RJ/RJR series and the RT/RTR series look pretty much identical, they have two different restive elements used for the resistive track that the wiper follows.

  • RT/RTR = Wirewound
  • RJ/RJR = Cermet

All the series of trim pots mentioned above are a sealed style trim pot, which means that the resistive track and the wiper are covered by a protective material. Depending on the configuration, these trim pots may have a temperature rating of -55°C to 150°C or -65°C to +150°C. Due to their small size trim pots are very fragile, and most manufactures rate their lifespan at 200 cycles so frequent adjustments are not recommended.

RT/RTR & RJ/RJR Part Number Breakdown





Please Enter a Three Digit Number
Part Number

Convert from MIL-SPEC number to RT/RTR part number


mil designation


terminal type

failure rate


RTR part-number

RT part-number (stock failure rate = M level)

terminal drawing

terminal pics

part number explanation



failure rate

Browse our RT/RTR & RJ/RJR Trim Pot inventory

RT/RTR Series RJ/RJR Series
Series Datasheet Series Datasheet
RT12 RJ12
RT22/RTR22 RJ22
RT24/RTR24 RJ24/RJR24
RT26 RJ26/RJR26