SMCJ36A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCJ36A-M3/9AT is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This surface mount component in DO-214AB (SMC) package is designed for general-purpose transient voltage suppression applications. The part is active and in production, with 721 units currently in stock. Equivalent and substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the DO-214AB package family.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	36	V
Voltage - Breakdown (Min)	40	V
Voltage - Clamping (Max) @ Ipp	58.1	V
Current - Peak Pulse (10/1000µs)	25.8	A
Power - Peak Pulse	1500	W
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	-
Package / Case	DO-214AB, SMC	-
Type	Zener	-
Unidirectional Channels	1	-

Substitute Part Grouping Explanation

Substitute parts for the SMCJ36A-M3/9AT are classified into three categories based on electrical and mechanical compatibility:

Direct Substitutes (Identical Electrical Performance) Direct substitutes maintain all critical electrical parameters: 36V reverse standoff voltage, 40V minimum breakdown voltage, 58.1V maximum clamping voltage, and 25.8A peak pulse current. These parts differ only in packaging format (Tape & Reel vs. Cut Tape) or minor manufacturer variations. The key parameters determining substitutability are:

Voltage - Reverse Standoff: 36V
Voltage - Clamping (Max) @ Ipp: 58.1V
Current - Peak Pulse: 25.8A
Package / Case: DO-214AB, SMC

Upgraded Substitutes (Higher Power Capability) Upgraded substitutes provide enhanced performance with higher peak pulse current or power dissipation while maintaining the same voltage ratings. These are suitable when additional transient energy absorption is required. Key differentiators:

Current - Peak Pulse: 51.6A or higher
Power - Peak Pulse: 3000W or higher
Voltage parameters remain identical

High-Power Recommended Substitutes (Significantly Enhanced Capability) High-power recommended substitutes offer substantially higher peak pulse current (86.1A) and power dissipation (5000W) for demanding telecom and industrial applications. These maintain voltage compatibility but provide superior transient suppression capacity.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Clamping (Max) @ Ipp (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Package	Packaging Format	Operating Temp (°C)	RoHS Status
SMCJ36A-M3/9AT	Vishay	36	58.1	25.8	1500	DO-214AB, SMC	Tape & Reel	-55 to 150	ROHS3
SMCJ36A-E3/57T	Vishay	36	58.1	25.8	1500	DO-214AB, SMC	Cut Tape	-55 to 150	ROHS3
SMCJ36A-E3/9AT	Vishay	36	58.1	25.8	1500	DO-214AB, SMC	Tape & Reel	-55 to 150	ROHS3
SMCJ36A-13-F	Diodes Incorporated	36	58.1	25.8	1500	DO-214AB, SMC	Tape & Reel	-55 to 150	ROHS3
SMCJ36A-TP	Micro Commercial Co	36	58.1	25.9	1500	DO-214AB, SMC	Tape & Reel	-55 to 175	ROHS3
SMLJ36A	Bourns Inc.	36	58.1	51.6	3000	DO-214AB, SMC	Tape & Reel	-55 to 150	ROHS3
SMLJ36A-TP	Micro Commercial Co	36	58.1	51.6	3000	DO-214AB, SMC	Tape & Reel	-55 to 175	ROHS3
5.0SMDJ36A	Taiwan Semiconductor Corporation	36	58.1	86.1	5000	DO-214AB, SMC	Tape & Reel	-55 to 175	ROHS3
5.0SMDJ36A-T7	Littelfuse Inc.	36	58.1	86.1	5000	DO-214AB, SMC	Tape & Reel	-65 to 150	ROHS3

Engineering Selection Recommendations

For Direct Replacement (1:1 Substitution) SMCJ36A-E3/57T, SMCJ36A-E3/9AT, and SMCJ36A-13-F are direct electrical equivalents. Selection between these depends on packaging format availability: Cut Tape (CT) for SMCJ36A-E3/57T or Tape & Reel (TR) for the others. All maintain identical voltage and current ratings. Vishay parts (SMCJ36A-E3 series) and Diodes Incorporated (SMCJ36A-13-F) are preferred for applications requiring established supply chain continuity.

For Enhanced Transient Protection SMLJ36A and SMLJ36A-TP provide doubled peak pulse current (51.6A) and power dissipation (3000W) while maintaining voltage compatibility. These are suitable for applications experiencing higher transient energy levels. Bourns SMLJ36A is REACH Affected; Micro Commercial Co SMLJ36A-TP is REACH Unaffected. Extended temperature range (-55 to 175°C) is available with the -TP variant.

For High-Power Applications 5.0SMDJ36A (Taiwan Semiconductor Corporation) and 5.0SMDJ36A-T7 (Littelfuse Inc.) deliver 5000W peak pulse power with 86.1A peak pulse current. These are specified for telecom and industrial applications requiring maximum transient suppression. Both are ROHS3 compliant and support extended temperature operation. 5.0SMDJ36A-T7 extends the lower temperature limit to -65°C.

All recommended substitutes are active products with ROHS3 compliance and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can SMCJ36A-E3/57T replace SMCJ36A-M3/9AT in production? A: Yes. Both parts are electrically identical with 36V standoff voltage, 58.1V clamping voltage, and 25.8A peak pulse current. The difference is packaging format: SMCJ36A-E3/57T is Cut Tape while SMCJ36A-M3/9AT is Tape & Reel. Verify your assembly equipment compatibility with the packaging format.

Q: What is the difference between SMCJ36A and SMLJ36A? A: Both maintain identical voltage ratings (36V standoff, 58.1V clamping). SMLJ36A provides doubled peak pulse current (51.6A vs. 25.8A) and power dissipation (3000W vs. 1500W). Use SMLJ36A when transient energy absorption requirements exceed the SMCJ36A capability.

Q: Are the 5.0SMDJ36A parts pin-compatible with SMCJ36A-M3/9AT? A: Yes. Both use DO-214AB (SMC) package with identical pinout. The 5.0SMDJ36A series provides significantly higher peak pulse current (86.1A) and power dissipation (5000W). Verify your circuit design can accommodate the enhanced performance characteristics.

Q: Which substitute offers the widest operating temperature range? A: SMCJ36A-TP, SMLJ36A-TP, and 5.0SMDJ36A support -55 to 175°C operation, extending 25°C above the standard -55 to 150°C range. 5.0SMDJ36A-T7 extends the lower limit to -65°C for -65 to 150°C operation.

Q: Is REACH compliance a factor in part selection? A: SMLJ36A (Bourns) is REACH Affected. All other substitutes listed are REACH Unaffected. For applications requiring REACH compliance documentation, select from SMCJ36A-E3 series, SMCJ36A-13-F, SMCJ36A-TP, SMLJ36A-TP, or 5.0SMDJ36A variants.

Q: Can I use a higher-power substitute in a design rated for 1500W? A: Yes. Higher-power substitutes (SMLJ36A at 3000W or 5.0SMDJ36A at 5000W) are backward compatible with designs specified for lower power ratings. The voltage characteristics remain identical. No circuit redesign is required.

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