P6SMB36A-M3/52 Equivalent & Substitute Parts

Part Overview

The P6SMB36A-M3/52 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 30.8V reverse standoff voltage class with a 49.9V maximum clamping voltage and 12A peak pulse current rating. The device is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified when design requirements necessitate alternative packaging formats, higher current ratings, different manufacturer sourcing, or specific automotive qualifications while maintaining electrical compatibility within the specified voltage and current parameters.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	30.8V
Voltage - Breakdown (Min)	34.2V
Voltage - Clamping (Max) @ Ipp	49.9V
Current - Peak Pulse (10/1000µs)	12A
Power - Peak Pulse	600W
Type	Zener
Unidirectional Channels	1
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Operating Temperature	-65°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the P6SMB36A-M3/52 are grouped based on strict electrical parameter compatibility. The primary substitution criteria are:

Voltage - Reverse Standoff (Typ): 30.8V
Voltage - Breakdown (Min): 34.2V
Voltage - Clamping (Max) @ Ipp: 49.9V
Unidirectional Channels: 1
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount

Substitutes are classified into the following categories:

Direct Equivalents (Identical Electrical Specifications): Parts with matching voltage ratings, clamping voltage, and current ratings within the same package format. These include P6SMB36A-E3/52 (Vishay, Tape & Reel packaging variant) and SMBJP6KE36A-TP (Micro Commercial Co).

Enhanced Current Rating Substitutes: Parts with identical voltage parameters but higher peak pulse current ratings, such as 1KSMB36A (Taiwan Semiconductor Corporation, 20A rating) and P6SMB36A (Eaton, 12.2A rating).

Automotive Grade Substitutes: Parts meeting AEC-Q101 automotive qualification with identical or compatible electrical specifications, including SM6T36AY (STMicroelectronics) and SZP6SMB36AT3G (Littelfuse Inc.).

Alternative Clamping Voltage Substitutes: Parts with matching reverse standoff and breakdown voltages but different clamping voltage characteristics, such as SM6T36A (STMicroelectronics, 64.3V clamping).

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Package	Operating Temperature	RoHS Status
P6SMB36A-M3/52	Vishay General Semiconductor	30.8V	34.2V	49.9V	12A	600W	DO-214AA, SMB	-65°C ~ 150°C	ROHS3
P6SMB36A-E3/52	Vishay General Semiconductor	30.8V	34.2V	49.9V	12A	600W	DO-214AA, SMB	-65°C ~ 150°C	ROHS3
1KSMB36A	Taiwan Semiconductor Corporation	30.8V	34.2V	49.9V	20A	1000W	DO-214AA, SMB	-55°C ~ 175°C	ROHS3
P6SMB36A	Eaton - Electronics Division	30.8V	34.2V	49.9V	12.2A	600W	DO-214AA, SMB	-55°C ~ 150°C	RoHS
SM6T36A	STMicroelectronics	30.8V	34.2V	64.3V	62A (8/20µs)	600W	DO-214AA, SMB	-55°C ~ 150°C	ROHS3
SM6T36AY	STMicroelectronics	30.8V	34.2V	64.3V	62A (8/20µs)	600W	DO-214AA, SMB	-55°C ~ 150°C	ROHS3
SMBJP6KE36A-TP	Micro Commercial Co	30.8V	34.2V	49.9V	12.2A	600W	DO-214AA, SMB	-55°C ~ 175°C	ROHS3
SZP6SMB36AT3G	Littelfuse Inc.	30.8V	34.2V	49.9V	12A	600W	DO-214AA, SMB	-65°C ~ 150°C	ROHS3

Engineering Selection Recommendations

For Direct Replacement: P6SMB36A-E3/52 provides identical electrical and thermal specifications with the only difference being packaging format (Tape & Reel versus Tape & Box). This part is recommended when tape and reel packaging is preferred for automated assembly processes.

For Enhanced Transient Protection: 1KSMB36A offers doubled peak pulse current (20A versus 12A) and increased power dissipation (1000W versus 600W) while maintaining identical voltage parameters. This part is suitable for applications requiring higher transient energy absorption. Operating temperature range extends to 175°C.

For Automotive Applications: SM6T36AY carries AEC-Q101 automotive qualification and is recommended for automotive-grade circuit protection. SZP6SMB36AT3G also meets AEC-Q101 requirements with identical voltage and current specifications to the original part.

For Alternative Sourcing: SMBJP6KE36A-TP (Micro Commercial Co) and P6SMB36A (Eaton) provide equivalent electrical performance with minor variations in peak pulse current (12.2A) and operating temperature ranges. These parts support supply chain diversification.

For Higher Current Applications: SM6T36A and SM6T36AY provide significantly higher peak pulse current (62A at 8/20µs pulse) but with elevated clamping voltage (64.3V). These parts are suitable only when the higher clamping voltage is acceptable within circuit design margins.

All substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can P6SMB36A-E3/52 be used as a direct replacement for P6SMB36A-M3/52?

A: Yes. Both parts are manufactured by Vishay and share identical electrical specifications: 30.8V reverse standoff, 34.2V breakdown, 49.9V clamping, and 12A peak pulse current. The difference is packaging format (Tape & Reel versus Tape & Box). Direct substitution is valid for both manual and automated assembly.

Q: What is the advantage of using 1KSMB36A over the original P6SMB36A-M3/52?

A: The 1KSMB36A provides doubled peak pulse current (20A versus 12A) and increased power dissipation (1000W versus 600W). Voltage parameters remain identical. This part is selected when the circuit experiences higher transient energy events. Operating temperature range also extends to 175°C.

Q: Are SM6T36A and SM6T36AY suitable substitutes?

A: These parts share identical reverse standoff (30.8V) and breakdown (34.2V) voltages but have higher clamping voltage (64.3V versus 49.9V) and significantly higher peak pulse current (62A versus 12A). Substitution is valid only if the circuit design tolerates the higher clamping voltage. SM6T36AY includes AEC-Q101 automotive qualification.

Q: Which substitute part is recommended for automotive applications?

A: SM6T36AY and SZP6SMB36AT3G both carry AEC-Q101 automotive qualification. SM6T36AY offers higher current capability (62A) with elevated clamping voltage. SZP6SMB36AT3G maintains identical electrical specifications to the original part with automotive-grade certification.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Tape & Box, Tape & Reel, Cut Tape) does not affect electrical performance. Format selection is based on assembly process requirements and inventory management. All substitute parts in DO-214AA SMB package are mechanically and electrically compatible.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant. The Eaton P6SMB36A carries RoHS compliance (not specifically ROHS3). All parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the difference between 10/1000µs and 8/20µs pulse specifications?

A: These represent different test pulse waveforms. The 10/1000µs pulse is a standard transient suppression test waveform. The 8/20µs pulse is an alternative waveform used for some TVS diode specifications. Both measure peak pulse current capability under different transient conditions. Parts specifying 8/20µs (SM6T36A, SM6T36AY) indicate higher current handling under that specific pulse profile.

Q: Can SMBJP6KE36A-TP be used in place of P6SMB36A-M3/52?

A: Yes. SMBJP6KE36A-TP provides equivalent electrical specifications with 12.2A peak pulse current (versus 12A) and extended operating temperature range (-55°C to 175°C). The part is manufactured by Micro Commercial Co and is ROHS3 compliant. Substitution is valid for both standard and extended temperature applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message