MIL-STD-461G CS101
MIL-STD-461G CS101 Conducted Susceptibility on Power Leads
Revision G, 11 December 2015
Series ripple injection across 30 Hz to 150 kHz via a coupling transformer, driven either by a signal generator and power amplifier chain or by a programmable source with built-in ripple and interharmonic injection. The EUT's own supply must be clean and fed through 50 µH LISNs, sized to the platform power type.
This standard turns on
- audio-frequency ripple injection
- series coupling onto power leads
- LISN-referenced source impedance
And says nothing about
- 400 Hz waveform synthesis
- reliability duration testing
- grid ride-through
- automotive voltage classes
Cited limits
Every value carries the clause, table or figure it comes from.
| Parameter | Value | Clause |
|---|---|---|
| Frequency range | 30 Hz – 150 kHz | CS101 |
| Applicability | AC inputs ≤30 A per phase and all DC inputs | CS101 |
| Limit Curve #1 | 136 dBµV (≈6.3 V RMS) for nominal source voltage above 28 V | CS101 Figure |
| Limit Curve #2 | 126 dBµV (≈2.0 V RMS) for nominal source voltage ≤28 V | CS101 Figure |
| Roll-off at 150 kHz | 106.5 dBµV (Curve #1) / 96.5 dBµV (Curve #2) | CS101 Figure |
| Alternative compliance | 80 W into 0.5 Ω precalibrated, falling to 0.09 W at 150 kHz | CS101 |
| EUT power feed | Through 50 µH LISNs | §4.3.6 |
Further reading
Specifying a system for this standard?
Send us the clauses you have to satisfy. We will come back with the source and load capability that covers them.
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