151CMQ040

Overview

The SMCJ58CA 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 from 5.0V to 440V with a tolerance of ±5%. The device exhibits picosecond-level response speeds and offers excellent voltage clamping capabilities alongside low leakage current characteristics. Constructed with a glass-passivated junction for high reliability, it supports both unidirectional and bidirectional configurations and is compliant with RoHS standards while being halogen-free.

Feature Summary

• High peak pulse power dissipation capability of 1500W
• Picosecond-level response speed for rapid transient suppression
• Glass-passivated junction ensuring high reliability and stability

Applications

• Protection of sensitive electronic circuits against transient voltage events
• Surge protection in industrial control systems
• Guarding data lines and communication interfaces from electrostatic discharge

Procurement Notes

Verify the specific part number suffix to confirm bidirectional configuration (CA) versus unidirectional (A). Ensure the requested reverse standoff voltage falls within the standard 5.0V to 440V range documented for the SMCJ series. Confirm compliance requirements such as RoHS and halogen-free status if specified for your application environment.

Selection Notes

Select based on the required reverse standoff voltage and peak pulse power handling needs. The DO-214AB package size should be considered for PCB layout constraints. Bidirectional types are suitable for AC or signal lines, while unidirectional types are preferred for DC power rails. Verify that the clamping voltage at the specified peak pulse current remains below the maximum allowable input voltage of the protected circuitry.

Part Context

The SMCJ series represents a line of transient voltage suppressors designed for surface-mount applications. These devices utilize a glass-passivated junction technology to provide robust protection against voltage transients. The series is characterized by its small form factor and high thermal performance, making it suitable for dense PCB layouts where space is limited but surge protection is critical.

Replacement Considerations

Direct replacements must match the DO-214AB package, 1500W power rating, and specific breakdown voltage. Equivalent parts from other manufacturers offering similar TVS specifications in this package style may be considered, provided they meet the same electrical and mechanical criteria.