SMBJ170D-M3/I Equivalent & Substitute Parts

Part Overview

The SMBJ170D-M3/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 170V reverse standoff voltage class and is designed for general-purpose transient protection applications. The device is actively produced and RoHS3 compliant, making it suitable for modern electronic circuit protection requirements. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the DO-214AA package specification.

Substiute Parts

SMBJ170D-M3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 735SMBJ170D-M3/I Datasheet

Current PartRFQ

SMBJ170A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 6881SMBJ170A-E3/5B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ170D-M3/I is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 170V
• Voltage - Clamping (Max) @ Ipp: Within acceptable tolerance range
• Current - Peak Pulse (10/1000µs): Equivalent or higher rating
• Package / Case: DO-214AA, SMB (surface mount compatibility)
• Unidirectional Channels: 1
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• RoHS Status: ROHS3 Compliant

The SMBJ170A-E3/5B meets all substitution criteria, maintaining identical reverse standoff voltage, equivalent clamping voltage performance, and compatible peak pulse current specifications within the same DO-214AA package footprint.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBJ170D-M3/I and SMBJ170A-E3/5B are active products manufactured by Vishay General Semiconductor - Diodes Division and maintain full RoHS3 compliance. The SMBJ170A-E3/5B is the manufacturer-recommended substitute, offering equivalent functional performance within the specified electrical and thermal operating parameters. Both devices are suitable for direct substitution in DO-214AA surface mount applications requiring 170V reverse standoff voltage protection. Selection between these parts may be based on availability, lead time, or procurement requirements, as electrical performance characteristics remain within acceptable engineering tolerances.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ170A-E3/5B replace the SMBJ170D-M3/I in existing designs?

A: Yes. Both devices share identical reverse standoff voltage (170V), equivalent peak pulse current ratings (2.23A vs. 2.2A), and identical DO-214AA package specifications. The clamping voltage difference (270V vs. 275V) falls within acceptable tolerance for general-purpose TVS applications.

Q: Are there package compatibility concerns when substituting these parts?

A: No. Both parts use the DO-214AA (SMB) surface mount package with identical footprint and land pattern requirements. No PCB layout modifications are necessary.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SMBJ170D-M3/I and SMBJ170A-E3/5B are RoHS3 compliant and carry active product status from the manufacturer.

Q: What is the primary difference between these two part numbers?

A: The parts differ in manufacturer packaging designations and internal manufacturing batches. The electrical performance and thermal characteristics remain equivalent for circuit protection applications.

Q: Are there temperature operating range differences?

A: No. Both devices operate across the identical temperature range of -55°C to 150°C (junction temperature).