SMCJ13A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCJ13A-M3/9AT is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 13V reverse standoff voltage class and provides 1500W peak pulse power dissipation for general-purpose transient protection applications. The part is Active status and RoHS3 compliant, making it suitable for modern electronic circuit protection where transient voltage events require rapid clamping to safe levels.

Equivalent and substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the DO-214AB (SMC) package form factor.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	13	V
Voltage - Breakdown (Min)	14.4	V
Voltage - Clamping (Max) @ Ipp	21.5	V
Current - Peak Pulse (10/1000µs)	69.8	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	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SMCJ13A-M3/9AT are classified into two categories based on electrical and mechanical compatibility:

Category 1: Direct Electrical Equivalents (1500W Class) These parts maintain identical voltage parameters (13V reverse standoff, 14.4V breakdown minimum, 21.5V clamping maximum) and peak pulse current specifications (69.7–69.8A). They are functionally interchangeable in applications where 1500W peak pulse power dissipation is specified. Differences in packaging designation (tape & reel variants, cut tape, or digi-reel) do not affect electrical performance.

Category 2: Higher Power Alternatives (3000W–5000W Class) These parts share the same voltage class (13V reverse standoff, 14.4V breakdown, 21.5V clamping) but provide increased peak pulse current handling (139.5–233A) and higher power dissipation (3000W–5000W). These are suitable for applications requiring enhanced transient energy absorption while maintaining the same voltage protection threshold.

Key Parameters Determining Substitution:

Voltage - Reverse Standoff: 13V (fixed)
Voltage - Clamping (Max) @ Ipp: 21.5V (fixed)
Package / Case: DO-214AB, SMC (fixed)
Mounting Type: Surface Mount (fixed)
Type: Zener, Unidirectional (fixed)

Parameter Comparison

Part Number	Manufacturer	Voltage RWM (V)	Voltage Breakdown Min (V)	Voltage Clamp Max (V)	Current Ipp (A)	Power Peak (W)	Temp Range (°C)	Package	RoHS Status
SMCJ13A-M3/9AT	Vishay	13	14.4	21.5	69.8	1500	-55 to 150	DO-214AB, SMC	ROHS3
SMCJ13A-E3/57T	Vishay	13	14.4	21.5	69.8	1500	-55 to 150	DO-214AB, SMC	ROHS3
SMCJ13A-E3/9AT	Vishay	13	14.4	21.5	69.8	1500	-55 to 150	DO-214AB, SMC	ROHS3
SMCJ13A	ANBON	13	14.4	21.5	69.7	1500	-55 to 150	DO-214AB, SMC	ROHS3
SMCJ13A-TP	Micro Commercial Co	13	14.4	21.5	69.8	1500	-55 to 175	DO-214AB, SMC	ROHS3
5.0SMDJ13A	MDE Semiconductor	13	14.4	21.5	233	5000	-55 to 150	DO-214AB, SMC	ROHS3
SMCJ13A-13-F	Diodes Incorporated	13	14.4	21.5	69.7	1500	-55 to 150	DO-214AB, SMC	ROHS3
SMDJ13A	Alpha & Omega Semiconductor	13	14.4	21.5	139.6	3000	-55 to 150	DO-214AB, SMC	ROHS3
SMDJ13A-T7	Littelfuse	13	14.4	21.5	139.5	3000	-65 to 150	DO-214AB, SMC	ROHS3

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and RoHS3 compliance, confirming suitability for current manufacturing and environmental standards.

For 1500W Power Class Applications: SMCJ13A-E3/57T, SMCJ13A-E3/9AT, SMCJ13A (ANBON), SMCJ13A-TP, and SMCJ13A-13-F provide direct electrical equivalence to the SMCJ13A-M3/9AT. Selection among these variants depends on packaging availability (tape & reel versus cut tape) and inventory requirements. SMCJ13A-TP extends the operating temperature range to 175°C, offering thermal margin in high-temperature environments.

For Enhanced Transient Protection (3000W–5000W): SMDJ13A and SMDJ13A-T7 provide 3000W peak pulse power with 139.5–139.6A peak current. The 5.0SMDJ13A delivers 5000W peak pulse power with 233A peak current. These higher-power variants maintain identical voltage thresholds and package form factors, enabling direct mechanical substitution while providing increased transient energy absorption capacity. SMDJ13A-T7 supports extended low-temperature operation to -65°C.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 3000W or 5000W TVS diode for the 1500W SMCJ13A-M3/9AT? A: Yes. The SMDJ13A, SMDJ13A-T7, and 5.0SMDJ13A maintain identical voltage parameters (13V reverse standoff, 21.5V clamping) and package form factor (DO-214AB, SMC). Higher power ratings provide additional transient energy absorption without affecting voltage protection thresholds. This substitution is valid when circuit design permits the increased current handling capability.

Q: What is the difference between SMCJ and SMDJ series designations? A: Both series are unidirectional TVS diodes in DO-214AB (SMC) packages with identical voltage ratings. The primary distinction is power dissipation: SMCJ series provides 1500W peak pulse power, while SMDJ series provides 3000W. The voltage protection characteristics remain identical across both series.

Q: Are tape & reel (TR) and cut tape (CT) variants electrically equivalent? A: Yes. Packaging format differences (tape & reel, cut tape, digi-reel) do not affect electrical performance. Selection depends on assembly process requirements and inventory management. All variants listed maintain identical electrical specifications.

Q: Does operating temperature range affect substitution compatibility? A: Operating temperature range does not prevent substitution. SMCJ13A-TP operates to 175°C versus the standard 150°C maximum, and SMDJ13A-T7 operates to -65°C minimum versus -55°C. These extended ranges provide additional thermal margin but do not restrict use in applications within the standard -55°C to 150°C range.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts carry RoHS3 compliance certification, confirming compatibility with current environmental and manufacturing standards.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message