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4
RNR/RNN
Vishay Angstrohm
Document Number 66001
Revision 06-Oct-00
Precision Hermetic Metal Film Resistors
Established Reliability “S” Level, MIL-PRF-55182 Characteristics E and C
FEATURES
• Qualified to MIL-PRF-55182 Characteristics E and C
(E and J for RNR75).
•Performance exceeds the requirements of MIL-PRF-55182.
•Excellent long term stability.
•“S” Level reliability.
• Hermetic glass enclosure is impervious to harmful
environments.
• Inert gas filled.
• Low noise.
GENERAL SPECIFICATIONS
Resistance Range: 10.0 Ω to 4.99M (see Table 1).
Standard values should be selected from the Resistance-
Tolerance Decade Table on page 11.
Tolerance: ± 0.1% (B), ± 0.5% (D), ± 1.0% (F).
Temperature Characteristics:
± 25ppm/°C (Characteristic E and J).
± 50ppm/°C (Characteristic C).
Power Ratings:
1/10, 1/8, 1/4, 1/2 and 1 watt - 125°C.
1/8, 1/4, 1/2, 3/4, and 2 watt - 70°C.
Power Derating: For ambient temperatures above 125°C,
see Power Derating Curve.
Life Failure Rate: S, R, P, M.
For the highest degree of reliability, stability and uniformity
of construction, Vishay Angstrohm hermetically-sealed
metal film resistors are unquestionably the first choice. The
true glass-to-metal hermetic enclosure seals the resistor
element in an inert gas atmosphere and protects it from
virtually all adverse environmental influences. The glass
enclosure will withstand in excess of 3000 psi external
pressure without leakage. The reliability and stability of
Vishay Angstrohm hermetically-sealed resistors have been
established by their use in nearly every military, missile,
aerospace and oceangraphy program having the most
demanding applications and the most hostile environments.
TABLE 1 - MODEL SELECTION / ELECTRICAL SPECIFICATION
MILITARY MAXIMUM TEMPERATURE RESISTANCE QUALIFIED LIFE
MILITARY POWER RATING WORKING CHARACTERISTIC1TOLERANCE RESISTANCE RANGE2 FAILURE
MODEL 125°C70°C VOLTAGE (PPM/°C) (%) Min. Max. RATE
RNR55 E = ± 25 B = ± 0.1
1/10 1/8 200 D = ± 0.5 10.0 Ω1.21M S, R, P, M
RNN55 C = ± 50 F = ± 1.0
RNR57 E = ± 25
1/8 1/4 250 F = ± 1.0 49.9 Ω200K S, R, P, M
RNN57 C = ± 50
RNR60 E = ± 25 B = ± 0.1
1/8 1/4 250 D = ± 0.5 10.0 Ω2.49M S, R, P, M
RNN60 C = ± 50 F = ± 1.0
RNR65 E = ± 25 B = ± 0.1
1/4 1/2 300 D = ± 0.5 24.9 Ω4.99M P, M
RNN65 C = ± 50 F = ± 1.0
RNR70 E = ± 25 B = ± 0.1
1/2 3/4 350 D = ± 0.5 24.9 Ω4.99M P, M
RNN70 C = ± 50 F = ± 1.0
RNR75 E = ± 25 B = ± 0.1
1 2 750 D = ± 0.5 49.9 Ω1.21M M
RNN75 J = ± 25 F = ± 1.0
NOTE: MODEL RNC: For characteristics E and C (per MIL-PRF-55182) terminal model RNR shall be used as a substitute.
1Temperature Characteristics E and C designate hermetically-sealed enclosure.
2Standard resistance values should be selected from the Resistance-Tolerance Decade Table.
B Tolerance available in all values (except RNR57.)