Littelfuse Uni-Directional TVS Diode 1-Element 600 W, 2-Pin DO-214 SMBJ33A

Littelfuse SMBJ33A is a 1-element uni-directional Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic components from voltage spikes and transient surges in industrial, laboratory, and commercial electronic applications. It features a single diode configuration in a surface mount DO-214 package with 2 pins, facilitating high-temperature soldering and efficient PCB space utilization.

This diode offers a nominal minimum breakdown voltage of 36.7 V and maximum reverse stand-off voltage of 33 V, making it highly effective in suppressing voltage transients exceeding these levels. Its clamping voltage is tightly controlled at 53.3 V, ensuring quick reaction and safeguarding protected circuits from overvoltage damage.

The device sustains a peak pulse power dissipation of 600 W and a peak pulse current of up to 11.3 A, rated for pulses with standard test current of 1 mA. It operates reliably within a broad temperature range of -65°C to 150°C, accommodating harsh ambient conditions found in automotive and industrial environments despite not being automotive qualified.

Key physical dimensions include a compact 4.57 mm length, 3.94 mm width, and 2.237 mm height, enabling integration in small space PCB layouts. The maximum reverse leakage current is limited to 1 μA, reducing power consumption during normal operation. ESD protection is incorporated as standard, improving robustness against electrostatic discharges.

The Littelfuse SMBJ33A TVS diode is ideal for transient suppression in power supplies, communication lines, industrial equipment, and electrical assemblies exposed to surge events. It is compliant with standard electronics manufacturing without specific approvals or automotive certification.

Single element TVS diode providing uni-directional voltage surge protection. Surface mount DO-214 package for compact and reliable PCB mounting. High peak pulse power rating of 600 W ensures capability to absorb large transient energies.

Wide operating temperature range from -65°C to 150°C offers suitability for harsh conditions. Low leakage current rating minimizes standby power loss. Precise clamping voltage for reliable suppression of voltage spikes. Standard ESD protection enhances device durability.

Compact dimensions suitable for high-density electronic assemblies. Designed for use in industrial, laboratory, power electronics, and communication system applications. Non-automotive approved, intended for general purpose electronics protection.

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