SMCJ5.0A-M3/9AT Transient Voltage Suppressor Diode - Equivalent & Substitute Parts

Part Overview

The SMCJ5.0A-M3/9AT is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AB (SMC) package and provides transient overvoltage protection for general-purpose applications. The device is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when higher power dissipation capabilities are needed for enhanced circuit protection.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	5	V
Voltage - Breakdown (Min)	6.4	V
Voltage - Clamping (Max) @ Ipp	9.2	V
Current - Peak Pulse (10/1000µs)	163	A
Power - Peak Pulse	1500	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	DO-214AB, SMC	-
Mounting Type	Surface Mount	-
Type	Zener	-
Unidirectional Channels	1	-

Substitute Part Grouping Explanation

Substitution eligibility for the SMCJ5.0A-M3/9AT is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Direct Substitution:

Voltage - Reverse Standoff (Typ): 5V
Voltage - Breakdown (Min): 6.4V
Voltage - Clamping (Max) @ Ipp: 9.2V
Current - Peak Pulse (10/1000µs): 163A
Power - Peak Pulse: 1500W
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Type: Zener
Unidirectional Channels: 1

Substitute Categories:

Category 1: Direct Electrical & Mechanical Equivalents - Parts meeting all critical parameters with identical electrical performance and package specifications.

Category 2: Manufacturer Variants - Parts from different manufacturers with identical electrical specifications and package compatibility.

Category 3: Enhanced Performance Alternatives - Parts with higher peak pulse current and power dissipation ratings while maintaining voltage specifications and package form factor. These provide superior transient protection capability.

Category 4: Specification Deviations - Parts with variations in clamping voltage or peak pulse current that deviate from the primary specification.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Breakdown Min (V)	Voltage - Clamping Max @ Ipp (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Package	Operating Temp (°C)	Product Status
SMCJ5.0A-M3/9AT	Vishay General Semiconductor	5	6.4	9.2	163	1500	DO-214AB, SMC	-55 to 150	Active
SMCJ5.0A-E3/57T	Vishay General Semiconductor	5	6.4	9.2	163	1500	DO-214AB, SMC	-55 to 150	Active
SMCJ5.0A	EVVO Semi	5	6.4	9.2	163	1500	DO-214AB, SMC	-55 to 150	Active
SMCJ5.0A-13-F	Diodes Incorporated	5	6.4	9.2	163	1500	DO-214AB, SMC	-55 to 150	Active
SMCJ5.0A-TP	Micro Commercial Co	5	6.4	9.2	163	1500	DO-214AB, SMC	-55 to 175	Active
SMCJ5V0A	Fairchild Semiconductor	5	6.4	9.2	163	1500	DO-214AB, SMC	Not specified	Active
3.0SMCJ5.0A-13	Diodes Incorporated	5	6.4	9.2	326.1	3000	DO-214AB, SMC	-55 to 150	Active
SMCJ5.0A-TR	STMicroelectronics	5	6.4	13.4	746 (8/20µs)	1500	DO-214AB, SMC	-55 to 150	Active
SMDJ5.0A	Alpha & Omega Semiconductor	5	6.4	9.2	326.1	3000	DO-214AB, SMC	-55 to 150	Active
SMDJ5.0A-T7	Littelfuse Inc.	5	6.4	9.2	326.1	3000	DO-214AB, SMC	-65 to 150	Active

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical & Mechanical Performance):

The following parts are direct substitutes for the SMCJ5.0A-M3/9AT, meeting all critical electrical parameters and package specifications:

SMCJ5.0A-E3/57T (Vishay General Semiconductor) - Identical specifications, alternative tape & reel variant
SMCJ5.0A (EVVO Semi) - Identical electrical performance, alternative packaging format
SMCJ5.0A-13-F (Diodes Incorporated) - Identical specifications with RoHS3 compliance
SMCJ5.0A-TP (Micro Commercial Co) - Identical electrical performance with extended operating temperature range (-55°C to 175°C)
SMCJ5V0A (Fairchild Semiconductor) - Identical electrical specifications

All direct substitutes maintain Active product status and RoHS3 compliance.

Enhanced Performance Alternatives:

The following parts provide higher transient protection capability while maintaining the 5V reverse standoff voltage and 9.2V clamping voltage:

3.0SMCJ5.0A-13 (Diodes Incorporated) - Doubles peak pulse current to 326.1A and power dissipation to 3000W, suitable for applications requiring enhanced surge protection
SMDJ5.0A (Alpha & Omega Semiconductor) - Provides 326.1A peak pulse current and 3000W power dissipation
SMDJ5.0A-T7 (Littelfuse Inc.) - Offers 326.1A peak pulse current, 3000W power dissipation, and extended low-temperature operation (-65°C)

Specification Deviation:

SMCJ5.0A-TR (STMicroelectronics) - Exhibits higher clamping voltage (13.4V) and significantly higher peak pulse current (746A at 8/20µs pulse), representing a different protection profile not suitable as a direct replacement

Frequently Asked Questions (FAQ)

Q: Can SMCJ5.0A-TP be used as a direct replacement for SMCJ5.0A-M3/9AT?

A: Yes. Both parts maintain identical electrical specifications: 5V reverse standoff, 6.4V breakdown minimum, 9.2V clamping maximum, and 163A peak pulse current. The SMCJ5.0A-TP offers an extended operating temperature range (-55°C to 175°C versus -55°C to 150°C), making it suitable for higher-temperature environments while remaining compatible with standard applications.

Q: What is the difference between the SMCJ5.0A-M3/9AT and 3.0SMCJ5.0A-13?

A: Both maintain identical voltage specifications (5V reverse standoff, 9.2V clamping). The primary difference is peak pulse current and power dissipation: the SMCJ5.0A-M3/9AT handles 163A and 1500W, while the 3.0SMCJ5.0A-13 handles 326.1A and 3000W. The enhanced part provides superior transient protection for circuits requiring higher surge current handling.

Q: Is SMCJ5.0A-TR a suitable substitute?

A: No. While SMCJ5.0A-TR shares the same 5V reverse standoff voltage and DO-214AB package, it deviates significantly in clamping voltage (13.4V versus 9.2V) and peak pulse current (746A versus 163A). These differences represent a different protection profile and are not suitable for direct replacement.

Q: Can I use EVVO Semi SMCJ5.0A instead of the Vishay part?

A: Yes. The EVVO Semi SMCJ5.0A maintains identical electrical specifications and package form factor. Both are Active status products with RoHS3 compliance. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel), which affects supply chain logistics but not electrical performance.

Q: What packaging options are available for equivalent parts?

A: Direct equivalents are available in Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel formats. All maintain the DO-214AB (SMC) surface mount package. Selection depends on production volume and assembly requirements rather than electrical performance.

Q: Are all substitute parts RoHS3 compliant?

A: All listed direct substitutes and enhanced performance alternatives maintain RoHS3 compliance and Unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with modern manufacturing and environmental standards.

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