Equivalent & Substitute Parts for SMCJ14A-M3/9AT

Part Overview

The SMCJ14A-M3/9AT 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 category with a 23.2V maximum clamping voltage and 64.7A peak pulse current rating. The device is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives meeting identical or compatible electrical and mechanical specifications.

Substiute Parts

SMCJ14A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 832SMCJ14A-M3/9AT Datasheet

Current PartRFQ

SMCJ14A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 2137SMCJ14A-E3/57T Datasheet

DirectRFQ

SMCJ14A-E3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 3525SMCJ14A-E3/9AT Datasheet

DirectRFQ

SMCJ14A

MeritekIn Stock: 20368SMCJ14A Datasheet

DirectRFQ

SMCJ14A

MeritekIn Stock: 20368SMCJ14A Datasheet

DirectRFQ

SMCJ14A

MeritekIn Stock: 20368SMCJ14A Datasheet

DirectRFQ

5.0SMDJ14A

MDE Semiconductor IncIn Stock: 46235.0SMDJ14A Datasheet

MFR RecommendedRFQ

SMCJ14A-13-F

Diodes IncorporatedIn Stock: 2953SMCJ14A-13-F Datasheet

MFR RecommendedRFQ

SMDJ14A

Alpha & Omega Semiconductor Inc.In Stock: 10382SMDJ14A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ14A-M3/9AT are qualified based on the following critical parameters that must remain constant or compatible:

• Voltage - Reverse Standoff (Typ): 14V
• Voltage - Breakdown (Min): 15.6V
• Voltage - Clamping (Max) @ Ipp: 23.2V
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Operating Temperature Range: -55°C to 150°C
• RoHS Status: ROHS3 Compliant

Substitute parts are organized into two categories:

Category 1: Direct Equivalents — Parts with identical electrical specifications (14V standoff, 23.2V clamp, 64.7A peak pulse current, 1500W power rating) and identical packaging. These parts are interchangeable without circuit redesign.

Category 2: Compatible Alternatives — Parts meeting the core voltage and package requirements but with different peak pulse current or power ratings. These parts maintain the same protection threshold but offer enhanced or reduced surge handling capability.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Preferred for 1:1 Replacement)

SMCJ14A-E3/57T, SMCJ14A-E3/9AT, SMCJ14A-13-F, and SMCJ14A (Meritek) are direct electrical and mechanical equivalents to the SMCJ14A-M3/9AT. All maintain identical voltage specifications (14V standoff, 23.2V clamp), identical package format (DO-214AB, SMC), and identical power dissipation (1500W). All substitute parts carry Active product status and ROHS3 compliance. These parts are suitable for direct substitution without circuit modification.

Compatible Alternatives (Enhanced Surge Capability)

SMDJ14A (Alpha & Omega Semiconductor Inc.) and 5.0SMDJ14A (MDE Semiconductor Inc) maintain the same voltage protection threshold (14V standoff, 23.2V clamp) and package format but provide increased peak pulse current and power dissipation ratings. SMDJ14A delivers 129.4A peak pulse current and 3000W power rating. 5.0SMDJ14A delivers 216A peak pulse current and 5000W power rating. These alternatives are suitable when circuit design permits higher surge handling capability or when enhanced transient protection is beneficial. Both maintain Active product status and ROHS3 compliance.

All identified substitute parts are manufactured by established semiconductor suppliers with Active product status and full ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can SMCJ14A-E3/57T replace SMCJ14A-M3/9AT directly?

A: Yes. Both parts are manufactured by Vishay General Semiconductor - Diodes Division with identical electrical specifications (14V standoff, 23.2V clamp, 64.7A peak pulse current, 1500W power), identical DO-214AB SMC package, and identical operating temperature range (-55°C to 150°C). The difference in part number suffix reflects packaging reel configuration only. Direct substitution is supported without circuit redesign.

Q: What is the difference between SMCJ14A and SMDJ14A?

A: Both parts maintain the same voltage protection threshold (14V standoff, 23.2V clamp) and DO-214AB SMC package. The primary difference is peak pulse current and power dissipation: SMCJ14A delivers 64.7A and 1500W, while SMDJ14A delivers 129.4A and 3000W. SMDJ14A provides enhanced transient surge handling. Selection depends on circuit transient energy requirements.

Q: Is 5.0SMDJ14A compatible with SMCJ14A-M3/9AT?

A: Yes, from a voltage and package perspective. Both maintain 14V standoff voltage, 23.2V clamping voltage, and DO-214AB SMC package format. However, 5.0SMDJ14A provides significantly higher peak pulse current (216A) and power dissipation (5000W) compared to SMCJ14A-M3/9AT (64.7A, 1500W). This part is suitable when enhanced surge protection is required or beneficial to circuit design.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance certification, matching the compliance status of the SMCJ14A-M3/9AT. All parts are suitable for applications requiring regulatory compliance with ROHS3 standards.

Q: What packaging formats are available for these TVS diodes?

A: All identified substitute parts use DO-214AB SMC surface mount package format, matching the SMCJ14A-M3/9AT package specification. Packaging differences in part numbers (such as -E3/57T versus -M3/9AT) reflect reel configuration and tape specifications for automated assembly, not physical package dimensions or footprint.

Q: Can I use SMCJ14A-13-F from Diodes Incorporated as a substitute?

A: Yes. SMCJ14A-13-F maintains identical electrical specifications (14V standoff, 23.2V clamp, 64.7A peak pulse current, 1500W power) and identical DO-214AB SMC package. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel), which does not affect electrical performance or circuit compatibility. Direct substitution is supported.