The SMAJ440A Transient Voltage Suppressor Diode – DO-214AC (SMA) SMD Package provides high-performance protection for sensitive electronic circuits from voltage surges induced by lightning, ESD, or inductive switching. Its glass-passivated junction ensures consistent clamping and low leakage, while the compact SMA package is optimized for surface-mount applications in industrial and communication systems.

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Features:

1. 400W peak pulse power capability (10/1000s waveform)
2. Fast response time for transient surge protection
3. Glass passivated junction for high stability and reliability
4. Low profile, space-efficient DO-214AC (SMA) package
5. Compliant with RoHS and UL94V-0 flammability 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): 0.6A
• Reverse Leakage Current (IR): 1A
• Peak Pulse Power Dissipation (PPPM): 400W
• Peak Forward Surge Current (IFSM): 40A (8.3ms half-sine wave)
• Thermal Resistance (RJA / RJL): 120C/W / 30C/W
• Operating Junction Temperature (TJ): -55C to +150C
• Storage Temperature Range (TSTG): -55C to +150C

Package Includes:

1 SMAJ440A Transient Voltage Suppressor Diode – DO-214AC (SMA) SMD Package