P6SMB27CA-M3/52 Equivalent & Substitute Parts

Part Overview

The P6SMB27CA-M3/52 is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and provides transient overvoltage protection for general-purpose applications. The part is active and in production, with 911 units currently in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design flexibility, or application-specific requirements.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	23.1	V
Voltage - Breakdown (Min)	25.7	V
Voltage - Clamping (Max) @ Ipp	37.5	V
Current - Peak Pulse (10/1000µs)	16	A
Power - Peak Pulse	600	W
Operating Temperature Range	-65 to 150	°C (TJ)
Package / Case	DO-214AA, SMB	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the P6SMB27CA-M3/52 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - Reverse Standoff (Typ): 23.1V
Voltage - Breakdown (Min): 25.7V
Voltage - Clamping (Max) @ Ipp: 37.5V
Current - Peak Pulse (10/1000µs): 16A minimum
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Bidirectional Channels: 1

Acceptable Variations:

Peak pulse current may exceed 16A (higher current capability is acceptable)
Operating temperature range may differ (lower minimum or higher maximum is acceptable)
Packaging format (Tape & Reel vs. Tape & Box) does not affect electrical compatibility
Manufacturer differences are acceptable provided electrical specifications are met

Parameter Comparison

Part Number	Manufacturer	Vwm (Typ) [V]	Vbr (Min) [V]	Vc (Max) @ Ipp [V]	Ipp (10/1000µs) [A]	Power [W]	Temp Range [°C]	Package	RoHS
P6SMB27CA-M3/52	Vishay	23.1	25.7	37.5	16	600	-65 to 150	DO-214AA	ROHS3
P6SMB27CA	Eaton	23.1	25.7	37.5	16.3	600	-55 to 150	DO-214AA	RoHS
P6SMB27CAH	Taiwan Semiconductor	23.1	25.7	37.5	16.8	600	-55 to 150	DO-214AA	ROHS3
SM6T27CAY	STMicroelectronics	23.1	25.7	48.3	83 (8/20µs)	600	-55 to 150	DO-214AA	ROHS3
SMBJP6KE27CA-TP	Micro Commercial Co	23.1	25.7	37.5	16.3	600	-55 to 175	DO-214AA	ROHS3

Engineering Selection Recommendations

Direct Substitutes (Electrically and Mechanically Equivalent):

P6SMB27CA (Eaton), P6SMB27CAH (Taiwan Semiconductor), and SMBJP6KE27CA-TP (Micro Commercial Co) are direct substitutes for the P6SMB27CA-M3/52. All three parts maintain identical voltage specifications (23.1V standoff, 25.7V breakdown, 37.5V clamping) and 600W peak pulse power rating. Peak pulse current ratings are equal to or exceed the original specification (16.3A to 16.8A vs. 16A). All substitute parts are RoHS3 compliant and housed in DO-214AA SMB packages suitable for surface mount assembly.

Limited Substitute (Higher Performance):

SM6T27CAY (STMicroelectronics) maintains voltage compatibility but exhibits higher clamping voltage (48.3V vs. 37.5V) and significantly higher peak pulse current (83A at 8/20µs pulse width vs. 16A at 10/1000µs). This part is suitable only when the application circuit can tolerate the elevated clamping voltage and when the higher current capability provides design margin. The different pulse width specification (8/20µs vs. 10/1000µs) reflects different test conditions and does not preclude substitution if voltage and current ratings are acceptable.

Compliance Considerations:

All substitute parts carry active product status. P6SMB27CAH and SMBJP6KE27CA-TP offer automotive-grade qualification (AEC-Q101) where applicable, providing additional reliability assurance for demanding environments. The Eaton P6SMB27CA carries standard RoHS compliance without automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can P6SMB27CA (Eaton) replace P6SMB27CA-M3/52 (Vishay) in my design?

A: Yes. Both parts share identical voltage specifications (23.1V standoff, 25.7V breakdown, 37.5V clamping) and 600W peak pulse power. The Eaton part delivers 16.3A peak pulse current, which exceeds the original 16A specification. Both are RoHS3 compliant and use DO-214AA SMB packaging. The only difference is the operating temperature minimum (-55°C vs. -65°C), which is acceptable for most applications.

Q: What is the difference between P6SMB27CAH and SMBJP6KE27CA-TP?

A: Both parts are electrically equivalent to the original P6SMB27CA-M3/52, with identical voltage and power ratings. P6SMB27CAH (Taiwan Semiconductor) operates from -55°C to 150°C and carries AEC-Q101 automotive qualification. SMBJP6KE27CA-TP (Micro Commercial Co) operates from -55°C to 175°C, providing extended high-temperature capability. Peak pulse current ratings are 16.8A and 16.3A respectively, both exceeding the original 16A specification.

Q: Why does SM6T27CAY have a higher clamping voltage (48.3V)?

A: SM6T27CAY is a higher-performance variant within the same voltage class. The 48.3V clamping voltage (vs. 37.5V) and 83A peak pulse current (vs. 16A) indicate a different internal design optimized for higher transient energy absorption. This part is a substitute only if your circuit design permits the elevated clamping voltage without exceeding component ratings downstream.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use DO-214AA SMB surface mount packaging, ensuring mechanical compatibility with the original P6SMB27CA-M3/52. Packaging formats differ (Tape & Reel vs. Tape & Box), but this affects only procurement and handling, not electrical or mechanical board-level compatibility.

Q: Which substitute part should I select for automotive applications?

A: P6SMB27CAH (Taiwan Semiconductor) and SM6T27CAY (STMicroelectronics) both carry AEC-Q101 automotive qualification. P6SMB27CAH is the direct electrical equivalent with automotive certification. SM6T27CAY offers higher performance but with elevated clamping voltage; select this only if your circuit design accommodates the higher voltage specification.

Q: Can I use these substitutes interchangeably on the same PCB assembly?

A: Yes, all substitute parts are mechanically and electrically compatible with the original P6SMB27CA-M3/52 footprint and circuit requirements, provided the application circuit can tolerate the specified voltage and current ranges. No PCB layout modifications are required.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message