152CMQ030

Overview

The SMCJ30CA is a bidirectional transient voltage suppressor diode from the SMCJ series, housed in the DO-214AB surface-mount package. It features a peak pulse power rating of 1500W and a reverse standoff voltage range spanning 5.0V to 440V. The device exhibits picosecond-level response speeds and maintains a breakdown voltage tolerance within ±5%. Designed for high reliability, it utilizes a glass-passivated junction structure with low leakage current characteristics. The component is available in both unidirectional and bidirectional configurations, supporting high-temperature soldering processes while adhering to RoHS standards and halogen-free requirements.

Feature Summary

• High peak pulse power handling capability of 1500W for robust transient protection
• Ultra-fast response time in the picosecond range for immediate overvoltage suppression
• Excellent voltage clamping performance to safeguard sensitive downstream circuitry
• Glass-passivated junction construction ensuring high reliability and stability

Applications

• Protection of electronic equipment against transient overvoltage events
• Surge protection in industrial control systems
• Guarding sensitive interfaces in communication networks
• Overvoltage protection for automotive electronics

Procurement Notes

Verify the specific part number suffix to confirm bidirectional configuration, as indicated by the 'CA' designation in standard nomenclature. Ensure the selected variant matches the required reverse standoff voltage for the target application circuit. Confirm compliance with RoHS directives and halogen-free status if environmental regulations apply. Validate that the DO-214AB package dimensions align with the PCB footprint design. Check datasheet specifications for thermal derating curves if operating in elevated temperature environments.

Selection Notes

Select this component based on the system's maximum operating voltage and expected surge energy levels. The 1500W power rating suits applications requiring substantial transient energy absorption. Bidirectional types are necessary for AC lines or bipolar signal lines, whereas unidirectional versions suit DC circuits. Consider the clamping voltage relative to the protected device's maximum allowable input voltage. Ensure the peak pulse current capability exceeds the anticipated surge currents in the specific deployment scenario.

Part Context

This component belongs to the SMCJ series of transient voltage suppressor diodes manufactured by SMC Diode Solutions. The series is characterized by its compact DO-214AB surface-mount package, which facilitates automated assembly and space-efficient PCB layouts. These devices are engineered to provide reliable protection against electrostatic discharge and other transient voltage events in various electronic systems.

Replacement Considerations

Direct replacements must match the 1500W peak pulse power, bidirectional configuration, and DO-214AB package. Verify equivalent reverse standoff voltage and clamping voltage parameters. Cross-reference with other manufacturers offering SMCJ-series TVS diodes to ensure pinout compatibility and electrical parameter equivalence.