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| Country of Origin | China |
|---|---|
| Brand | Littelfuse |
| Height | 2.41mm |
| Length | 4.75mm |
| Model | SMBJ440CA |
| Width | 3.94mm |
| Mount Type | Surface |
| Series | SMBJ |
| Maximum Operating Temperature | 150°C |
| Package Type | DO-214 |
| Minimum Operating Temperature | -65°C |
| Pin Count | 2 |
| Number of Elements per Chip | 1 |
| Clamping Voltage VC | 713V |
| Diode Configuration | Single |
| Direction Type | Bi-Directional |
| Minimum Breakdown Voltage Vbr | 492V |
| Maximum Reverse Stand-off Voltage Vwm | 440V |
| Peak Pulse Power Dissipation Pppm | 600W |
| Test Current It | 1mA |
| Maximum Peak Pulse Current Ippm | 0.9A |
| Maximum Reverse Leakage Current | 1μA |
| High temperature soldering guaranteed | 260°C/40 seconds at terminals |
| Fast response time | typically less than 1.0ps from 0V to BV min |
The Littelfuse SMBJ440CA is a 1-element bi-directional transient voltage suppression (TVS) diode designed to protect sensitive electronic equipment against voltage transients caused by lightning and other transient events. It comes in a compact 2-pin DO-214 surface mount package optimized for space-saving PCB layouts.
This diode provides a peak pulse power dissipation capability of 600 W, making it suitable for robust overvoltage protection in industrial, telecommunications, automotive, and consumer electronics applications. The device features excellent clamping capability with a clamping voltage of 713 V and a minimum breakdown voltage rating of 492 V, ensuring reliable suppression of voltage spikes.
The SMBJ440CA ensures fast response time, typically less than 1.0 picoseconds, minimizing the risk of damage to critical components. Its low incremental surge resistance and low leakage current (approximately 1 μA above 12 V) further enhance device performance and efficiency. The diode operates reliably across a wide temperature range from -65°C to 150°C.
With glass passivated chip junction and matte tin lead-free plating, the SMBJ440CA is built for durability and environmental compliance. It supports high temperature soldering processes, guaranteed for 260°C for 40 seconds at the terminals, providing manufacturing flexibility.
Excellent transient voltage suppression for electronic circuit protection. Bi-directional clamping suitable for AC/DC voltage suppression. Low leakage current enhances efficiency. Compact surface mount DO-214 package optimizes PCB space.
Robust construction with glass passivated junction for reliability. Wide temperature operation supports diverse industrial environments. Compliant with halogen-free and lead-free manufacturing standards. High peak pulse power ensures durability under transient stress.
This Littelfuse TVS diode is ideal for applications in power supply protection, industrial controls, telecommunications devices, automotive electronics, and general electronic circuit safeguarding. Its sturdy design and reliable performance make it a valuable component for engineering resilient electronic systems.
Explore more semiconductor solutions and TVS Diodes for your electronic protection needs at EnvMart.
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