MXLSMBJ64CA Equivalent & Substitute Parts

Part Overview

The MXLSMBJ64CA is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Microchip Technology. This surface mount component is designed for general-purpose transient voltage protection applications. The device features a 64V reverse standoff voltage with a 103V maximum clamping voltage and 5.8A peak pulse current capability in a DO-214AA (SMB) package.

The MXLSMBJ64CA is classified as an active product with military-grade qualification under MIL-PRF-19500. Substitute parts may be required due to supply chain constraints, manufacturing discontinuation of alternative sources, or specific application requirements for equivalent electrical performance.

Substiute Parts

MXLSMBJ64CA

Microchip TechnologyIn Stock: 1003MXLSMBJ64CA Datasheet

Current PartRFQ

SMBJ64CA-13

Diodes IncorporatedIn Stock: 4422SMBJ64CA-13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MXLSMBJ64CA is determined by strict equivalence of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 64V
• Voltage - Breakdown (Min): 71.1V
• Voltage - Clamping (Max) @ Ipp: 103V
• Current - Peak Pulse (10/1000µs): 5.8A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA or SMB
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener

The substitute part SMBJ64CA-13 manufactured by Diodes Incorporated meets all critical electrical parameters. Both the main part and substitute share the same base product number (SMBJ64) and are classified within the SMBJ series. The substitute operates across a slightly narrower temperature range (-55°C to 150°C versus -65°C to 150°C) but maintains full electrical equivalence for the specified voltage and current ratings.

Parameter Comparison

Engineering Selection Recommendations

MXLSMBJ64CA (Microchip Technology)

The MXLSMBJ64CA is the primary component specification. This part maintains active product status with military-grade qualification under MIL-PRF-19500. The device is qualified for applications requiring extended low-temperature operation down to -65°C. Current inventory of 936 pieces supports immediate procurement.

SMBJ64CA-13 (Diodes Incorporated)

The SMBJ64CA-13 provides electrical equivalence across all critical parameters. This substitute is classified as discontinued at DiGi Electronics but maintains full parameter compatibility with the main part. The operating temperature range extends to -55°C minimum, which is acceptable for applications not requiring extended low-temperature performance below -55°C. Inventory availability of 4400 pieces provides supply security. Both parts share RoHS non-compliant and REACH unaffected status, ensuring regulatory consistency.

Selection between these parts should be based on application temperature requirements and supply availability. For applications operating above -55°C, the SMBJ64CA-13 provides direct substitution. For applications requiring operation at -65°C, the MXLSMBJ64CA is required.

Frequently Asked Questions (FAQ)

Q: Can SMBJ64CA-13 replace MXLSMBJ64CA in all applications?

A: The SMBJ64CA-13 provides electrical substitution for applications with operating temperatures at or above -55°C. The MXLSMBJ64CA supports operation to -65°C. Verify application minimum operating temperature requirements before substitution.

Q: Are the package dimensions identical between these parts?

A: Both parts use the DO-214AA (SMB) surface mount package. Mechanical compatibility is confirmed for PCB layout and assembly processes.

Q: What is the difference between the base product number SMBJ64 and the full part numbers?

A: The base product number SMBJ64 identifies the voltage and current rating class. The full part numbers (MXLSMBJ64CA and SMBJ64CA-13) include manufacturer-specific designations and suffix codes that identify the exact manufacturer, qualification level, and packaging configuration.

Q: Are there compliance differences between the main part and substitute?

A: Both parts are RoHS non-compliant and REACH unaffected. Regulatory compliance status is identical. The MXLSMBJ64CA carries military-grade qualification under MIL-PRF-19500, while the SMBJ64CA-13 does not specify this qualification.

Q: What electrical parameters must match for substitution?

A: The following parameters must match exactly: Voltage - Reverse Standoff (64V), Voltage - Breakdown (71.1V), Voltage - Clamping (103V), Current - Peak Pulse (5.8A), and Power - Peak Pulse (600W). Package type (DO-214AA/SMB) and mounting configuration (surface mount) must also be identical.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes, both parts use identical DO-214AA (SMB) surface mount packages. PCB footprints and assembly processes are compatible without modification.