MIL-DTL-3933/25D
ENGINEERING DATA:
Operating frequency range: DC to 18 GHz (see table I).
Test frequency ranges for SWR and attenuation measurements, measured or recorded, when using an Automatic
Network Analyzer (ANA) or equivalent test equipment:
100 MHz (or lower) to 2.0 GHz for dash numbers 01 through 26.
100 MHz (or lower) to 12.4 GHz for dash numbers 27 through 57.
100 MHz (or lower) to 18 GHz for dash numbers 58 through 95.
Basic test frequencies for sensitive measurements like connector repeatability, temperature sensitivity, power
sensitivity and any other measurements where a `delta spec is imposed:
1.0 GHz for dash numbers 01 through 26.
6.0 GHz for dash numbers 27 through 57.
8.0 GHz for dash numbers 58 through 95.
Operating temperature range: -55°C to +125°C. Power input is derated linearly to 0.5 watt at +125°C.
Maximum weight: 0.45 ounce.
REQUIREMENTS:
Dimensions and configuration: See figure 1 and table I.
Nominal impedance: 50 ohms.
Attenuation: See table I.
Stability and sensitivity:
Maximum change in attenuation after:
up to 10 dB, inclusive (dB)
over 10 dB (dB/dB)
temperature change or thermal shock
0.5
0.05
vibration or shock
0.5
0.05
moisture resistance or salt spray
0.5
0.05
peak power
0.5
0.05
Frequency sensitivity, maximum:
0.4 dB/dB/GHz.
Temperature sensitivity of attenuation, maximum: 0.0006 dB/dB/°C.
Input power: See table I.
Power sensitivity for full input power, maximum:
0.005 dB/dB/Watt.
VSWR: See table I.
Connector repeatability, maximum variation in attenuation: 0.04 dB.
Part or Identifying Number (PIN): M3933/25- (and dash number from table I with three device level designators are
space level (T), screened (S) and non-screened (N) options).
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