SMBJ14D-M3/I Equivalent & Substitute Parts

Part Overview

The SMBJ14D-M3/I 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 is designed for general-purpose transient protection applications. The device is actively produced and fully compliant with RoHS3 and REACH regulations, making it suitable for current procurement and deployment in new designs.

Equivalent and substitute parts are identified based on matching electrical performance parameters within the DO-214AA (SMB) package form factor, ensuring direct mechanical and thermal compatibility while maintaining functional equivalence in circuit protection applications.

Substiute Parts

SMBJ14D-M3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 849SMBJ14D-M3/I Datasheet

Current PartRFQ

SMBJ14A-E3/5B

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ14D-M3/I are identified based on the following critical electrical and mechanical parameters:

• Reverse Standoff Voltage (Typ): 14V — determines the voltage class and primary protection threshold
• Package / Case: DO-214AA (SMB) — ensures mechanical and thermal compatibility on PCB
• Mounting Type: Surface Mount — confirms compatibility with automated assembly processes
• Peak Pulse Power Rating: 600W — establishes transient energy dissipation capability
• Operating Temperature Range: -55°C to 150°C — defines thermal operating envelope
• Compliance Standards: RoHS3 and REACH — ensures regulatory and environmental compatibility

The SMBJ14A-E3/5B meets all substitution criteria within the allowed parameter tolerances for this product category. Both devices share identical reverse standoff voltage classification, package form factor, power rating, and compliance certifications, establishing functional equivalence for general-purpose TVS diode applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBJ14D-M3/I and SMBJ14A-E3/5B are Active product status devices manufactured by Vishay General Semiconductor - Diodes Division. Both components are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for new product designs and procurement.

The SMBJ14A-E3/5B is the manufacturer-recommended substitute. Electrical parameters remain within the specified operating envelope, with clamping voltage and peak pulse current variations of less than 2%, which is within standard component tolerance for this device class. Both parts are qualified for identical applications and thermal operating ranges.

Selection between these parts may be based on inventory availability, lead time, or supply chain considerations, as both provide equivalent functional performance in 14V TVS diode applications.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ14A-E3/5B be used as a direct replacement for the SMBJ14D-M3/I?

A: Yes. Both devices share identical reverse standoff voltage (14V), package form factor (DO-214AA/SMB), power rating (600W), and compliance certifications. Electrical parameter variations are within standard component tolerances for this product category.

Q: What determines substitution eligibility for TVS diodes in this voltage class?

A: Substitution is based on matching reverse standoff voltage, package type, peak pulse power rating, operating temperature range, and regulatory compliance status. These parameters ensure mechanical fit, thermal compatibility, and functional equivalence in circuit protection applications.

Q: Are there any package or mounting differences between these parts?

A: No. Both the SMBJ14D-M3/I and SMBJ14A-E3/5B use the DO-214AA (SMB) surface mount package with identical mechanical dimensions and PCB footprint requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are RoHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings, meeting current regulatory and environmental requirements.

Q: What is the significance of the clamping voltage difference between these parts?

A: The clamping voltage difference (22.9V vs. 23.2V) represents a 1.3% variation, which is within standard component tolerance for TVS diodes. Both values remain within the functional operating envelope for 14V standoff voltage class applications.