MIL-C-19978/17B
Terminal to case: Greater than 10,000 megohms.
Vibration, high frequency: Method 204 of MIL-STD-202, test condition B, with the following exception:
Direction and duration of motion - 4 hours in each of two mutually perpendicular directions (total of 8 hours), one
parallel and the other perpendicular to the cylindrical axis.
Salt spray: In accordance with MIL-PRF-19978.
Solderability: In accordance with MIL-PRF-19978.
Terminal strength: Method 211 of MIL-STD-202, test condition letter D.
Stability at low and high temperature:
Low temperature:
Test temperature: -65°C +0°, -5°C.
Capacitance change (max): -10 percent.
High temperature:
Test temperature: +125°C +5°, -0°C.
Capacitance change (max): +10 percent.
Life:
Capacitance change (max): ±5 percent.
Resistance to soldering heat: In accordance with MIL-PRF-19978.
NOTE: Style CQR42 capacitors are substitutable for style CP12 capacitors formerly covered in MIL-C-25/1K as
shown in table IV.
TABLE IV. Substitutability data.
From
To
From
To
From
To
MIL-C-25/1K
MIL-C-19978/17
MIL-C-25/1K
MIL-C-19978/17
MIL-C-25/1K
MIL-C-19978/17
(CP12)
(CQR42)
(CP12)
(CQR42)
(CP12)
(CQR42)
CP12A-KB822K-
CQR42A-KB822K3-
CP12A-KC824K-
CQR42A-KC824K3-
CP12A-KF683K-
CQR42A-KF683K3-
CP12A-KB103K-
CQR42A-KB103K3-
CP12A-KC105K-
CQR42A-KC105K3-
CP12A-KF823K-
CQR42A-KF823K3-
CP12A-KB123K-
CQR42A-KB123K3-
CP12A-KE272K-
CQR42A-KE272K3-
CP12A-KF104K-
CQR42A-KF104K3-
CP12A-KB153K-
CQR42A-KB153K3-
CP12A-KE332K-
CQR42A-KE332K3-
CP12A-KF124K-
CQR42A-KF124K3-
CP12A-KB393K-
CQR42A-KB393K3-
CP12A-KE123K-
CQR42A-KE123K3-
CP12A-KF154K-
CQR42A-KF154K3-
CP12A-KB473K-
CQR42A-KB473K3-
CP12A-KE153K-
CQR42A-KE153K3-
CP12A-KF184K-
CQR42A-KF184K3-
CP12A-KB823K-
CQR42A-KB823K3-
CP12A-KE273K-
CQR42A-KE273K3-
CP12A-KF224K-
CQR42A-KF224K3-
CP12A-KB104K-
CQR42A-KB104K3-
CP12A-KE333K-
CQR42A-KE333K3-
CP12A-KF274K-
CQR42A-KF274K3-
CP12A-KB124K-
CQR42A-KB124K3-
CP12A-KE393K-
CQR42A-KE393K3-
CP12A-KF334K-
CQR42A-KF334K3-
CP12A-KB154K-
CQR42A-KB154K3-
CP12A-KE473K-
CQR42A-KE473K3-
CP12A-KF394K-
CQR42A-KF394K3-
CP12A-KB184K-
CQR42A-KB184K3-
CP12A-KE563K-
CQR42A-KE563K3-
CP12A-KF474K-
CQR42A-KF474K3-
CP12A-KB224K-
CQR42A-KB224K3-
CP12A-KE683K-
CQR42A-KE683K3-
CP12A-KG102K-
CQR42A-KG102K3-
CP12A-KB274K-
CQR42A-KB274K3-
CP12A-KE823K-
CQR42A-KE823K3-
CP12A-KG122K-
CQR42A-KG122K3-
CP12A-KB334K-
CQR42A-KB334K3-
CP12A-KE104K-
CQR42A-KE104K3-
CP12A-KG152K-
CQR42A-KG152K3-
CP12A-KB394K-
CQR42A-KB394K3-
CP12A-KE124K-
CQR42A-KE124K3-
CP12A-KG182K-
CQR42A-KG182K3-
6