SMBJ14A-M3/5B Equivalent & Substitute Parts

Part Overview

The SMBJ14A-M3/5B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 14V reverse standoff voltage class and provides transient overvoltage protection in general-purpose applications. The part is Active status and RoHS3 compliant, making it suitable for modern electronic designs requiring surge and ESD protection.

Substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when alternative manufacturers offer equivalent electrical and mechanical performance within the same application requirements.

Substiute Parts

SMBJ14A-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 1154SMBJ14A-M3/5B Datasheet

Current PartRFQ

SMBJ14A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 4131SMBJ14A-E3/5B Datasheet

MFR RecommendedRFQ

SMBJ14A

MDDIn Stock: 17283SMBJ14A Datasheet

MFR RecommendedRFQ

SMBJ14A

MDDIn Stock: 17283SMBJ14A Datasheet

MFR RecommendedRFQ

SMBJ14A-13-F

Diodes IncorporatedIn Stock: 41415SMBJ14A-13-F Datasheet

MFR RecommendedRFQ

SMBJ14A-TP

Micro Commercial CoIn Stock: 40456SMBJ14A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ14A-M3/5B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 14V
• Voltage - Clamping (Max) @ Ipp: 23.2V
• Current - Peak Pulse (10/1000µs): 25.8–25.9A
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in operating temperature range, breakdown voltage minimum, and manufacturer do not affect functional substitution within general-purpose transient protection applications.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with modern manufacturing standards. Selection among these equivalents should be based on:

• Availability and inventory levels from authorized distributors
• Manufacturer preference within your supply chain qualification matrix
• Operating temperature requirements (SMBJ14A-TP supports extended upper temperature to 175°C; MDD variant supports -50°C minimum)
• Packaging and tape specifications for automated assembly processes

The electrical performance across all substitutes is functionally equivalent for general-purpose transient voltage suppression applications.

Frequently Asked Questions (FAQ)

Q: Can SMBJ14A-E3/5B replace SMBJ14A-M3/5B directly?

A: Yes. Both parts are manufactured by Vishay and share identical electrical specifications (14V standoff, 23.2V clamping, 25.9A peak pulse current) and package configuration (DO-214AA, SMB). The suffix variation indicates different tape reel specifications or manufacturing batches.

Q: What is the difference between the MDD SMBJ14A and Vishay variants?

A: The MDD SMBJ14A maintains equivalent electrical performance and package type. The primary difference is the minimum operating temperature (-50°C vs. -55°C). For applications operating above -50°C, this part is fully substitutable.

Q: Are SMBJ14A-13-F and SMBJ14A-TP suitable for high-temperature environments?

A: SMBJ14A-TP supports operation to 175°C junction temperature, exceeding the standard -55 to 150°C range. SMBJ14A-13-F operates within the standard -55 to 150°C range. Select SMBJ14A-TP for applications requiring extended upper temperature performance.

Q: Do all substitute parts use the same DO-214AA package?

A: Yes. All listed substitutes use the DO-214AA (SMB) surface mount package, ensuring mechanical and footprint compatibility with the original SMBJ14A-M3/5B design.

Q: Are there any compliance differences between manufacturers?

A: All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's regulatory and environmental specifications.