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SMCJ100A-M3/9AT Equivalent & Substitute Parts
Part Overview
The SMCJ100A-M3/9AT is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 100V reverse standoff voltage class with a 162V maximum clamping voltage and 9.3A peak pulse current rating. The device is designed for general-purpose transient protection applications and is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).
Equivalent and substitute parts are identified when alternative manufacturers or packaging variants provide identical electrical performance within the specified parameter tolerances for this product category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 100 | V |
| Voltage - Breakdown (Min) | 111 | V |
| Voltage - Clamping (Max) @ Ipp | 162 | V |
| Current - Peak Pulse (10/1000µs) | 9.3 | A |
| Power - Peak Pulse | 1500 | W |
| Operating Temperature Range | -55 to 150 | °C |
| Package / Case | DO-214AB, SMC | — |
| Mounting Type | Surface Mount | — |
| Type | Zener | — |
| Unidirectional Channels | 1 | — |
Substitute Part Grouping Explanation
Substitute parts for the SMCJ100A-M3/9AT are classified based on strict electrical and mechanical parameter matching:
Direct Electrical Equivalents (1500W Class): Parts that maintain identical voltage ratings (100V reverse standoff, 111V minimum breakdown, 162V maximum clamping), identical peak pulse current (9.3A), identical power dissipation (1500W), and identical surface mount DO-214AB/SMC packaging. These parts are interchangeable without circuit redesign.
Manufacturer Variants: Different manufacturers (Vishay, Fairchild Semiconductor, Diodes Incorporated, Micro Commercial Co) producing the same electrical specification with identical package and performance characteristics.
Packaging Variants: Alternative tape & reel configurations or supplier device package designations that maintain the same electrical performance and physical footprint.
Higher Power Alternatives (3000W and 5000W Classes): Parts with identical voltage ratings and clamping characteristics but increased peak pulse current and power dissipation ratings. These provide enhanced transient protection capability within the same package footprint and are suitable for applications requiring higher energy absorption.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (V) | Voltage - Breakdown Min (V) | Voltage - Clamping Max (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Operating Temp (°C) | Package | Status |
|---|---|---|---|---|---|---|---|---|---|
| SMCJ100A-M3/9AT | Vishay | 100 | 111 | 162 | 9.3 | 1500 | -55 to 150 | DO-214AB, SMC | Active |
| SMCJ100A-E3/57T | Vishay | 100 | 111 | 162 | 9.3 | 1500 | -55 to 150 | DO-214AB, SMC | Active |
| SMCJ100A | Fairchild Semiconductor | 100 | 111 | 162 | 9.3 | 1500 | -55 to 150 | DO-214AB, SMC | Active |
| SMCJ100A-13-F | Diodes Incorporated | 100 | 111 | 162 | 9.3 | 1500 | -55 to 150 | DO-214AB, SMC | Active |
| SMCJ100A-TP | Micro Commercial Co | 100 | 111 | 162 | 9.3 | 1500 | -55 to 175 | DO-214AB, SMC | Active |
| SMDJ100A | Alpha & Omega Semiconductor Inc. | 100 | 111 | 162 | 18.6 | 3000 | -55 to 150 | DO-214AB, SMC | Active |
| 5.0SMDJ100A | Taiwan Semiconductor Corporation | 100 | 111 | 162 | 30.9 | 5000 | -55 to 175 | DO-214AB, SMC | Active |
Engineering Selection Recommendations
Direct Replacement (1500W Class): SMCJ100A-E3/57T, SMCJ100A (Fairchild), and SMCJ100A-13-F are direct electrical and mechanical equivalents to the SMCJ100A-M3/9AT. All maintain identical voltage specifications, peak pulse current, and power dissipation. Selection among these variants depends on supplier availability and lead time. All are RoHS3 compliant with MSL 1 rating.
Extended Temperature Operation: SMCJ100A-TP (Micro Commercial Co) extends the operating temperature range to -55°C to 175°C while maintaining all other electrical parameters identical to the main part. This variant is suitable for applications requiring enhanced thermal performance.
Higher Power Alternatives: SMDJ100A and 5.0SMDJ100A maintain identical voltage clamping characteristics (100V reverse standoff, 162V maximum clamping) but provide increased peak pulse current and power dissipation. SMDJ100A delivers 3000W (18.6A peak pulse), while 5.0SMDJ100A delivers 5000W (30.9A peak pulse). These alternatives are suitable for circuits requiring enhanced transient energy absorption without changing the voltage protection threshold. Both maintain the same DO-214AB/SMC package footprint and surface mount compatibility.
All substitute parts listed are active production items with current inventory availability and full RoHS3 compliance.
Frequently Asked Questions (FAQ)
Q: Can SMCJ100A-E3/57T be used as a direct replacement for SMCJ100A-M3/9AT?
A: Yes. Both parts are manufactured by Vishay with identical electrical specifications: 100V reverse standoff, 162V clamping voltage, 9.3A peak pulse current, and 1500W power dissipation. The difference is in packaging designation and tape & reel configuration. Both use DO-214AB/SMC surface mount packages and are electrically interchangeable.
Q: What is the difference between SMCJ100A and SMDJ100A?
A: Both maintain identical voltage ratings (100V reverse standoff, 162V clamping). The primary difference is power dissipation: SMCJ100A is rated for 1500W at 9.3A peak pulse current, while SMDJ100A is rated for 3000W at 18.6A peak pulse current. SMDJ100A provides double the transient energy absorption capability in the same package footprint.
Q: Can I use 5.0SMDJ100A in place of SMCJ100A-M3/9AT?
A: Yes, from an electrical protection standpoint. The 5.0SMDJ100A maintains identical voltage clamping characteristics (100V reverse standoff, 162V maximum clamping) but provides significantly higher peak pulse current (30.9A) and power dissipation (5000W). This is a higher-performance alternative suitable for applications requiring enhanced transient protection. The DO-214AB/SMC package footprint is identical, enabling direct PCB substitution.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed—SMCJ100A-E3/57T, SMCJ100A (Fairchild), SMCJ100A-13-F, SMCJ100A-TP, SMDJ100A, and 5.0SMDJ100A—are RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity level.
Q: What is the operating temperature difference between SMCJ100A-TP and other 1500W variants?
A: SMCJ100A-TP extends the maximum operating temperature to 175°C compared to 150°C for SMCJ100A-M3/9AT, SMCJ100A-E3/57T, SMCJ100A (Fairchild), and SMCJ100A-13-F. This extended range is beneficial for high-temperature circuit environments. All other electrical parameters remain identical.
Q: Do all substitute parts use the same DO-214AB/SMC package?
A: Yes. All substitute parts listed use the DO-214AB/SMC surface mount package with identical physical dimensions and PCB footprint, enabling direct board-level substitution without layout modifications.
Q: Which substitute part has the highest current rating?
A: The 5.0SMDJ100A has the highest peak pulse current rating at 30.9A with 5000W power dissipation, compared to 9.3A (1500W) for the main part and 18.6A (3000W) for SMDJ100A.
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