MXLSMBJ170A Equivalent & Substitute Parts

Part Overview

The MXLSMBJ170A is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This surface-mount component operates with a reverse standoff voltage of 170V and provides clamping at 275V maximum, with a peak pulse current rating of 2.2A. The device is currently active in production and available in inventory. Substitute parts are identified to provide equivalent electrical performance and mechanical compatibility for applications requiring replacement or design flexibility.

Substiute Parts

MXLSMBJ170A

Microchip TechnologyIn Stock: 850MXLSMBJ170A Datasheet

Current PartRFQ

SMBJ170A-13

Diodes IncorporatedIn Stock: 969SMBJ170A-13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MXLSMBJ170A are identified based on electrical parameter equivalence and mechanical compatibility. The critical parameters determining substitution eligibility are:

• Voltage - Reverse Standoff (Typ): 170V
• Voltage - Clamping (Max) @ Ipp: 275V
• Current - Peak Pulse (10/1000µs): 2.2A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB (surface mount)
• Type: Zener, Unidirectional (1 channel)

The SMBJ170A-13 from Diodes Incorporated meets all electrical specifications and package requirements, making it functionally equivalent for direct substitution in applications requiring 170V standoff protection with 275V clamping capability.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ170A-13 from Diodes Incorporated provides complete electrical and mechanical equivalence to the MXLSMBJ170A across all critical transient voltage suppression parameters. Both devices share identical voltage ratings, current handling, power dissipation, and package specifications.

Primary Consideration: The MXLSMBJ170A maintains active product status with current manufacturing availability, while the SMBJ170A-13 is discontinued at DiGi Electronics. For new designs and long-term supply chain stability, the MXLSMBJ170A is the preferred selection.

Temperature Range Difference: The MXLSMBJ170A operates across -65°C to 150°C, while the SMBJ170A-13 operates across -55°C to 150°C. Applications requiring operation below -55°C must use the MXLSMBJ170A.

Compliance Status: Both devices are RoHS non-compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is 1 (unlimited) for both parts.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ170A-13 be used as a direct replacement for the MXLSMBJ170A?

A: Yes, the SMBJ170A-13 provides electrical and mechanical equivalence for applications operating within the -55°C to 150°C temperature range. All voltage ratings, current specifications, and package dimensions are identical.

Q: What is the difference in operating temperature ranges?

A: The MXLSMBJ170A operates from -65°C to 150°C, while the SMBJ170A-13 operates from -55°C to 150°C. Applications requiring operation below -55°C junction temperature must use the MXLSMBJ170A.

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both the MXLSMBJ170A and SMBJ170A-13 use the DO-214AA (SMB) surface-mount package, ensuring identical PCB footprint compatibility.

Q: What are the critical electrical parameters for substitution?

A: Substitution eligibility is determined by matching the reverse standoff voltage (170V), clamping voltage (275V maximum), peak pulse current (2.2A), and peak pulse power (600W). Both parts meet these specifications.

Q: Why is the SMBJ170A-13 listed as discontinued?

A: The SMBJ170A-13 is discontinued at DiGi Electronics, indicating reduced availability through major distributors. The MXLSMBJ170A remains in active production with current inventory.

Q: Are there compliance or certification differences between these parts?

A: Both devices share identical RoHS status (non-compliant), REACH status (unaffected), ECCN classification (EAR99), and moisture sensitivity level (MSL 1). No compliance differentiation exists between the two parts.