SM6T30CA

SM6T30CA is a Transient Voltage Suppressor (TVS) diode in the SM6T family. It protects circuits from voltage transients (load dumps, inductive spikes, ESD) by clamping overvoltage to safe levels. The “30” indicates a nominal stand-off voltage around 30 V; the “CA” suffix denotes the automotive-grade variant. It is a high‑power, surface‑mount device designed to absorb short, fast surges on DC rails or signal lines (peak pulse power rating depends on waveform). Typical applications are automotive 12/24 V systems, industrial power rails, and telecom equipment requiring robust surge protection. When selecting, check Vrwm (stand-off voltage), Vclamp, Ipp (pulse current capability), package type, operating temperature, and any automotive qualification (AEC‑Q). Note that variants may be unidirectional or bidirectional; verify the exact device orientation and datasheet details for your use case.

SM6T30CA equivalents include:
• SMCJ30A (STMicro, Vishay, Nexperia)
• SM6T30A (Diodes Inc, ON Semi SM6T30A-E3)
• MMDJ30CA (Microsemi)
• P6SMC30A (Littelfuse series)
All share a 30 V standoff voltage, 600 W peak‐pulse dissipation in an SMC (DO-214AB) package.

SM6T30CA is a 600 W peak pulse power transient voltage suppressor (TVS) diode from STMicroelectronics. Key features:
- Bidirectional diode with VRWM = 30 V (30 V stand-off)
- 600 W peak pulse power (8/20 μs)
- SMB/DO-214AA surface-mount package
- Wide operating temperature: typically -55°C to +150°C
- Fast transient response with low dynamic resistance and clamping capability
- RoHS compliant and halogen-free
- Suitable for automotive and general power/signal line protection environments

SM6T30CA is a 2-pin device (two terminals) — a TVS (transient voltage suppressor) diode in an SMB package. Its function is to protect circuits from transient overvoltage events (surges, lightning, ESD) by clamping voltage spikes between the two terminals (anode/cathode for unidirectional operation or two symmetric clamps for bidirectional variants).

The SM6T30CA is a transient-voltage-suppression (TVS) diode part number in the SM6T family that is made by multiple electronic-component manufacturers (commonly available from vendors such as Diodes Inc., Micro Commercial Components (MCC), Bourns, Littelfuse and others). These manufacturers are semiconductor/electronic-component companies that design and produce discrete protection devices (TVS diodes) used for surge, transient and ESD protection in electronic circuits.

SM6T30CA is a 600 W peak pulse power TVS diode with about 30 V stand-off, designed for transient suppression on 24–30 V rails.
Application areas:
- Automotive 24 V systems (ECUs, sensors, wiring harness protection)
- Industrial automation and 24 V machinery
- DC-DC converters, battery management and charging circuits
- 24 V data interfaces (CAN/LIN, RS-485)
- Telecom/datacom equipment power rails up to 30 V
- Solar/storage inverters and PV controllers
- Connector and I/O port protection against surges and ESD

The SM6T30CA is packaged in an SMB (DO‑214AA) surface-mount (epoxy‑molded) package.