Product Overview
RNC55H7500FS 750 Ohm 1% Established Reliability Resistor, MIL-PRF-55182 Style RNC55
Condition
Unused new old stock (NOS) metal film resistor with axial leads. Sold each.
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Product Overview
Vishay Dale RNC55H7500FS is a 750 ohm, 1% metal film resistor in style RNC55 of MIL-PRF-55182, the established reliability specification for film resistors. It carries temperature characteristic H (50 ppm/C), tolerance F (1%) and failure rate level S (0.001 % per 1000 hours).
Key Features
- Resistance: 750 ohm, 1% tolerance
- Temperature coefficient: 50 ppm/C (characteristic H)
- Power rating: 0.125 W at 70 C, 0.10 W at 125 C
- Maximum working voltage: 200 V
- Failure rate level S: 0.001 % per 1000 hours
- Metal film element, axial leads, through-hole mounting
Applications
- Replacing a 750 ohm RNC55 on a board whose parts list calls out MIL-PRF-55182 styles
- Setting a gain, bias or divider ratio where 1% and 50 ppm/C keep the value steady as the board warms
Frequently Asked Questions
Is it a 1/8 W or a 0.1 W resistor?
Both. It is rated 0.125 W at 70 C and 0.10 W at 125 C, so the figure depends on the ambient temperature the circuit runs in.
Is an RNC55 the same as an RN55?
No. RN55 is a MIL-R-10509 style. RNC55 is the established reliability style under MIL-PRF-55182, which supersedes MIL-R-10509 for designs going forward and adds a failure rate level to the number, here S.
Established reliability meant a resistor maker had to earn the failure rate letter with logged life-test hours, not adjectives. This 750 ohm carries an S, which suits the repair whose parts list was written by someone expecting an audit.
