SMAJ28CA

The SMAJ28CA from Littelfuse is a SMAJ series 400W, surface mount bidirectional transient voltage suppression diode in DO-214AA package. It features excellent clamping capability, glass passivated junction, low inductance, low profile package, built-in strain relief and fast response time of typically less than 1.0ps from 0Vs to VBR min. The peak pulse power dissipation (PPPM) is 400W at TA=25°C, 10/1000µs waveform, 0.01% repetition rate (duty cycle). This SMAJ series transient voltage suppression diode is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. It is ideal for the protection of I/O interfaces, VCC bus and other vulnerable circuits.

• Fast response time is typically less than 1ps
• Peak forward surge current of 40A (8.3ms single half sine wave super imposed on rated load
• Peak power dissipation of 400W at TA = 25°C, TP = 1ms
• Steady state power dissipation of 1W
• Operating junction temperature range from -55°C to +150°C
• Flammability rating meets UL94 V-0
• Working peak reverse voltage of 28V and maximum reverse leakage current of 1µA at Vrwm
• Breakdown voltage of 31.1V (minimum), 38V (maximum) and test current of 1mA
• Maximum clamping voltage of 50V at Ippm and maximum peak pulse surge current of 8A