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Electronic Components - Resistors Military MIL-R-11 Ordering Code.

Resistor part numbers under MIL-Spec MIL-R-11 Type Designation.

An example: RC20 GF514J

RC20 GF 514 J
| | | |
type or style temperature characteristic resistance tolerance
1 2 3 4

1. Rating (watts at 70 C degree)

  • RC05 = 1/8 watt
  • RC07 = 1/4 watt
  • RC20 = 1/2 watt
  • RC32 = 1 watt
  • RC42 = 2 watt

2. Maximum ambient temperature and resistance temperature characteristic (refer to MIL-R-11 specifications as Applicable)

3. Resistance value: First two digits are significant. The last digit indicates the number of zeros to follow, except below 10 ohms:

  • 101 = 10 with 1 zero = 100 Ohm
  • 102 = 10 with 2 zeros = 1000 Ohm
  • 2R7 = decimal point 2.7 Ohm

The letter "R" is substituted in place of a significant digit to represent the decimal point

5. Tolerance:

  • J = ± 5 %
  • K = ± 10 %
  • - = ± 20 %

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