SMBJ14AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ14AE3/TR13 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 in the 14V reverse standoff voltage class with a 23.2V maximum clamping voltage and 25.8A peak pulse current rating. The device is packaged in DO-214AA (SMB) format and supplied on tape and reel.

The SMBJ14AE3/TR13 maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical performance parameters, mechanical compatibility, and operational temperature ranges within the specified limits.

Substiute Parts

SMBJ14AE3/TR13

Microchip TechnologyIn Stock: 917SMBJ14AE3/TR13 Datasheet

Current PartRFQ

SMBJ14A-13-F

Diodes IncorporatedIn Stock: 41415SMBJ14A-13-F Datasheet

DirectRFQ

SMBJ14A-TP

Micro Commercial CoIn Stock: 40456SMBJ14A-TP Datasheet

DirectRFQ

SMBJ14A

MDDIn Stock: 17283SMBJ14A Datasheet

SimilarRFQ

SMBJ14A

MDDIn Stock: 17283SMBJ14A Datasheet

SimilarRFQ

SMBJ14A

MDDIn Stock: 17283SMBJ14A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ14AE3/TR13 are classified into two categories based on electrical and mechanical parameter alignment:

Direct Substitutes maintain identical electrical specifications across all critical parameters: 14V reverse standoff voltage, 15.6V minimum breakdown voltage, 23.2V maximum clamping voltage, 25.8A peak pulse current, and 600W peak pulse power. These parts are functionally interchangeable within the specified operating conditions.

Similar Substitutes maintain the core electrical specifications (14V standoff, 15.6V breakdown, 23.2V clamping, and 600W power) with minor variations in peak pulse current (25.9A versus 25.8A) and operating temperature ranges. These parts satisfy the primary voltage and power protection requirements while operating within acceptable performance tolerances.

Substitution eligibility is determined by the following key parameters:

• Voltage - Reverse Standoff (Typ): 14V
• Voltage - Breakdown (Min): 15.6V
• Voltage - Clamping (Max) @ Ipp: 23.2V
• Current - Peak Pulse (10/1000µs): 25.8A or 25.9A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener
• Unidirectional Channels: 1

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and full compliance with RoHS3 and REACH regulations, ensuring regulatory continuity with the original SMBJ14AE3/TR13 specification.

SMBJ14A-13-F (Diodes Incorporated) and SMBJ14A-TP (Micro Commercial Co) are direct electrical equivalents with identical peak pulse current ratings of 25.8A. Both parts are supplied in tape and reel packaging and maintain the DO-214AA (SMB) package format. The SMBJ14A-13-F operates within a -55 to 150°C temperature range, while the SMBJ14A-TP extends to -55 to 175°C, providing broader thermal operating capability.

SMBJ14A (MDD) is classified as a similar substitute with a peak pulse current specification of 25.9A, representing a 0.4% variance from the original 25.8A rating. This part operates within a -50 to 150°C temperature range and maintains all other electrical and compliance specifications.

Selection between direct and similar substitutes depends on application-specific temperature requirements and current margin requirements. All parts are available in active inventory with high stock levels, supporting immediate procurement.

Frequently Asked Questions (FAQ)

Q: Can SMBJ14A-13-F directly replace SMBJ14AE3/TR13 in existing designs?

A: Yes. The SMBJ14A-13-F maintains identical electrical specifications including 14V reverse standoff voltage, 23.2V clamping voltage, and 25.8A peak pulse current. Both parts use the DO-214AA (SMB) surface-mount package and are RoHS3 compliant. The primary difference is the operating temperature range: SMBJ14A-13-F operates from -55 to 150°C versus -65 to 150°C for the original part. This substitution is valid for applications operating above -55°C.

Q: What is the difference between direct and similar substitutes?

A: Direct substitutes (SMBJ14A-13-F and SMBJ14A-TP) match the original part's peak pulse current specification of 25.8A exactly. Similar substitutes (SMBJ14A from MDD) specify 25.9A peak pulse current, a 0.4% increase. All maintain identical voltage specifications and package format. Similar substitutes are suitable for applications where the slightly higher current rating does not create design conflicts.

Q: Are all substitute parts available in tape and reel packaging?

A: SMBJ14A-13-F and SMBJ14A-TP are explicitly supplied in tape and reel (TR) packaging, matching the original SMBJ14AE3/TR13 format. The SMBJ14A from MDD does not specify packaging format in the available data. Confirm packaging requirements with the supplier before procurement.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All identified substitute parts are RoHS3 compliant, REACH unaffected, and carry moisture sensitivity level 1 (unlimited). All parts maintain active product status, ensuring long-term availability and regulatory continuity.

Q: Which substitute part offers the widest operating temperature range?

A: The SMBJ14A-TP from Micro Commercial Co operates from -55 to 175°C (TJ), providing the broadest upper temperature limit. The original SMBJ14AE3/TR13 operates from -65 to 150°C. Selection depends on specific application temperature requirements.

Q: Can SMBJ14A (MDD) be used where the original part specifies 25.8A peak pulse current?

A: The SMBJ14A from MDD specifies 25.9A peak pulse current, representing a 0.4% increase over the original 25.8A specification. This part is suitable for applications where the higher current rating does not exceed circuit design limits. Verify that the application circuit can accommodate the slightly elevated current specification.