P4SMA350A

The P4SMA350A is a unidirectional Transient Voltage Suppressor (TVS) diode from Bourns, part of the P4SMA series. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning, electrostatic discharge (ESD), and electrical fast transients (EFT). The diode features a reverse standoff voltage of 300 V and a breakdown voltage of 350 V (nominal, 5% tolerance). Under surge conditions, it clamps at a maximum of 482 V while handling a peak pulse current of 900 mA (1 ms pulse). The device can dissipate up to 400 W of peak pulse power (1 ms) and withstand a peak forward surge current of 40 A (8.3 ms half sine wave). Response time is typically less than 1 picosecond, making it suitable for high-speed data line protection.

The diode is housed in a standard surface-mount DO-214AC (SMA) package, which is compatible with automated pick-and-place assembly. It operates over a junction temperature range of -55°C to +150°C. The P4SMA350A is RoHS compliant and halogen free, meeting current environmental regulations. It is suitable for general-purpose applications requiring robust transient protection in compact form factors.