P4KE30A 30 V 400 W Uni‑Directional TVS Diode | DO-41 | Industrial DC Line Surge Protector HORNBY

P4KE30CA 30 V 400 W Bi‑Directional TVS Diode | DO-41 | AC/DC Transient Protector
Description
The P4KE30CA is a 30 V, 400 W bi‑directional TVS diode suited for AC or bidirectional line protection, safeguarding communication circuits, AC power rails, and dual‑polarity supplies from surges and transients. Its symmetrical breakdown characteristics and fast avalanche response provide dependable clamping during voltage transients, reverse surges, and line‑noise spikes.

Key Specifications

• VRWM: ±25.6 V (reverse stand‑off)  

• VBR: ±(28.531.5 V)  

• VC: ~±41.4 V (at specified Ipp)  

• Peak Pulse Power: 400 W  

• Package: DO‑41  

• Response Time: < 1 ns (typical for P4KE series)  

Applications

• AC or bi‑polar power rail surge protection

• Communication lines / signalling circuits that may see polarity reversals

• Industrial automation control systems with bidirectional supply

• Dual‑polarity power supplies / converters protection

• Line‑noise and surge suppression in AC/DC mixed environments

Features

• 400 W peak pulse power handling for high‑energy surges  

• Symmetric clamping for both polarities — ideal for AC or reversible‑supply circuits

• Very fast avalanche response for transient suppression (< 1 ns)  

• Robust DO‑41 package suitable for industrial environments, easy through‑hole mounting 

• Low leakage current in stand‑by state — minimizes impact on sensitive circuits