90V standoff TVS in the 1.5SMCJ family
The 1.5SMCJ90CA_R1_00001 is a bidirectional Zener-based TVS diode from Panjit International Inc., specified for 90V reverse standoff and rated 1500W peak pulse power at 10/1000µs transient waveform.
What the voltage ratings mean for the protection window
The 90V reverse standoff (typ) is the maximum working voltage the diode sees in the idle state — the circuit runs below this without the TVS drawing significant leakage. The 100V minimum breakdown marks where the Zener action begins; above it the device clamps.
General-purpose transient protection
Listed for general-purpose applications — not a dedicated automotive or medical grade — which means it suits power supplies, interface protection on telecom rails, and industrial I/O where the 90V standoff aligns with the nominal bus voltage. Power line protection is marked No; this part protects signal and control lines rather than the main AC rail.
