MXLSMBJ58CA Equivalent & Substitute Parts

Part Overview

The MXLSMBJ58CA is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a reverse standoff voltage of 58V and provides clamping at 93.6V maximum, with a peak pulse current rating of 6.4A. The component is housed in a DO-214AA (SMB) package and is qualified to MIL-PRF-19500 military standards. Identification of equivalent and substitute parts is necessary to address inventory availability, manufacturing continuity, and design flexibility while maintaining electrical and mechanical compatibility.

Substiute Parts

MXLSMBJ58CA

Microchip TechnologyIn Stock: 771MXLSMBJ58CA Datasheet

Current PartRFQ

SMBJ58CA-13

Diodes IncorporatedIn Stock: 3768SMBJ58CA-13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MXLSMBJ58CA is determined by electrical parameter equivalence and mechanical compatibility. The critical parameters that define substitutability are:

• Voltage - Reverse Standoff (Typ): 58V
• Voltage - Breakdown (Min): 64.4V
• Voltage - Clamping (Max) @ Ipp: 93.6V
• Current - Peak Pulse (10/1000µs): 6.4A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener

The substitute part SMBJ58CA-13 from Diodes Incorporated meets all electrical specifications and package requirements. Both parts are classified as general-purpose TVS diodes with identical voltage and current ratings, enabling direct functional substitution in circuit applications. The primary distinction is the operating temperature range and product status.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ58CA-13 from Diodes Incorporated is electrically and mechanically equivalent to the MXLSMBJ58CA for general-purpose TVS diode applications. Both components satisfy identical voltage suppression and current handling requirements with matching DO-214AA (SMB) package specifications.

The MXLSMBJ58CA maintains an active product status with military-grade qualification (MIL-PRF-19500) and an extended operating temperature range of -65°C to 150°C. The SMBJ58CA-13 is discontinued at DiGi Electronics and operates within a narrower temperature range of -55°C to 150°C. Selection between these parts depends on application requirements:

• For applications requiring military qualification or extended low-temperature operation below -55°C, the MXLSMBJ58CA is the appropriate choice.
• For general-purpose applications within the -55°C to 150°C temperature range where military qualification is not required, the SMBJ58CA-13 provides functional equivalence.

Both parts comply with REACH regulations and carry identical RoHS non-compliance status and moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ58CA-13 be used as a direct replacement for the MXLSMBJ58CA?

A: The SMBJ58CA-13 is electrically and mechanically equivalent for applications operating within the -55°C to 150°C temperature range. If your application requires operation below -55°C or mandates military qualification, the MXLSMBJ58CA is required.

Q: What are the critical electrical parameters for TVS diode substitution?

A: Substitution requires matching of reverse standoff voltage (58V), breakdown voltage (64.4V minimum), clamping voltage (93.6V maximum), peak pulse current (6.4A), and peak pulse power (600W). Both parts meet these specifications identically.

Q: Are the package dimensions identical between these parts?

A: Both the MXLSMBJ58CA and SMBJ58CA-13 use the DO-214AA (SMB) surface-mount package, ensuring identical footprint and mounting compatibility on printed circuit boards.

Q: What is the significance of the operating temperature range difference?

A: The MXLSMBJ58CA operates from -65°C to 150°C, while the SMBJ58CA-13 operates from -55°C to 150°C. Applications requiring operation below -55°C must use the MXLSMBJ58CA. For standard industrial and commercial temperature ranges, both parts are suitable.

Q: Does military qualification affect substitution eligibility?

A: The MXLSMBJ58CA carries MIL-PRF-19500 qualification, while the SMBJ58CA-13 does not. Applications requiring military-grade components must specify the MXLSMBJ58CA. For non-military applications, qualification status does not affect functional substitution.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are RoHS non-compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). No regulatory differences exist between the two components.