The SMBJ440A Transient Voltage Suppressor Diode – DO-214AA (SMB) SMD Package is designed to safeguard sensitive electronic components from damaging transient voltage spikes caused by lightning strikes, inductive load switching, or ESD events. Its glass-passivated junction and low-inductance structure ensure stable, high-performance clamping and rapid response. Perfect for use in telecom, industrial, and automotive electronic protection circuits.

Features:

1. 600W peak pulse power capability (10/1000s waveform)
2. Glass passivated chip for high reliability and stability
3. Low inductance design enabling fast transient suppression
4. Excellent clamping capability and fast response
5. Compliant with RoHS and UL94V-0 standards

Specifications:

• Stand-off Voltage (VR): 440V
• Breakdown Voltage (VBR): 492V to 543V
• Test Current (IT): 1mA
• Clamping Voltage (VC): 713V
• Peak Pulse Current (Ipp): 0.9A
• Reverse Leakage Current (IR): 1A
• Peak Pulse Power Dissipation (PPPM): 600W
• Peak Forward Surge Current (IFSM): 100A (8.3ms half-sine wave)
• Thermal Resistance (RJA / RJL): 100C/W / 20C/W
• Operating Junction Temperature (TJ): -55C to +150C
• Storage Temperature Range (TSTG): -55C to +150C

Package Includes:

1 SMBJ440A Transient Voltage Suppressor Diode – DO-214AA (SMB) SMD Package