P6SMB30CA-M3/52 Equivalent & Substitute Parts

Part Overview

The P6SMB30CA-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 974 units currently in stock. Equivalent and substitute parts are identified based on matching electrical performance parameters and package compatibility to support procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	25.6	V
Voltage - Breakdown (Min)	28.5	V
Voltage - Clamping (Max) @ Ipp	41.4	V
Current - Peak Pulse (10/1000µs)	14.5	A
Power - Peak Pulse	600	W
Operating Temperature Range	-65°C to 150°C	TJ
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB30CA-M3/52 is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): 25.6V
Voltage - Breakdown (Min): 28.5V
Voltage - Clamping (Max) @ Ipp: 41.4V
Package / Case: DO-214AA, SMB (surface mount)
Bidirectional Channels: 1
Type: Zener

Substitute parts must maintain identical or functionally equivalent voltage ratings and clamping characteristics. Peak pulse current and power dissipation may vary within acceptable design margins. Packaging format and mounting type must remain compatible with the original application. All substitute parts listed are active products with RoHS3 compliance or equivalent environmental certification.

Parameter Comparison

Part Number	Manufacturer	Voltage Standoff (V)	Breakdown Min (V)	Clamping Max (V)	Peak Pulse Current (A)	Power Peak (W)	Temp Range (°C)	Package	RoHS Status
P6SMB30CA-M3/52	Vishay	25.6	28.5	41.4	14.5	600	-65 to 150	DO-214AA, SMB	ROHS3
P6SMB30CA-E3/52	Vishay	25.6	28.5	41.4	14.5	600	-65 to 150	DO-214AA, SMB	ROHS3
1KSMB30CA	Taiwan Semiconductor Corporation	25.6	28.5	41.4	24.2	1000	-55 to 175	DO-214AA, SMB	ROHS3
P6SMB30CA	Eaton - Electronics Division	25.6	28.5	41.4	14.7	600	-55 to 150	DO-214AA, SMB	RoHS
P6SMB30CA TR13 PBFREE	Central Semiconductor Corp	25.6	28.5	41.4	14.4	600	-65 to 150	DO-214AA, SMB	ROHS3
SM6T30CA	STMicroelectronics	25.6	28.5	53.5	75	600	-55 to 150	DO-214AA, SMB	ROHS3
SM6T30CAY	STMicroelectronics	25.6	28.5	53.5	75	600	-55 to 150	DO-214AA, SMB	ROHS3
SZP6SMB30CAT3G	Littelfuse Inc.	25.6	28.5	41.4	14.4	600	-65 to 150	DO-214AA, SMB	ROHS3
TPSMB30CA	Littelfuse Inc.	25.6	28.5	41.4	14.7	600	-65 to 175	DO-214AA, SMB	ROHS3

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical and Thermal Performance)

P6SMB30CA-E3/52 (Vishay) is a direct equivalent differing only in packaging format (Tape & Reel versus Tape & Box). Both parts share identical voltage ratings, clamping characteristics, and temperature range. Selection between these variants depends on procurement quantity and packaging requirements.

Functionally Compatible Substitutes (Matching Voltage Ratings, Enhanced Performance)

1KSMB30CA (Taiwan Semiconductor Corporation) maintains identical voltage standoff, breakdown, and clamping specifications. This part offers enhanced peak pulse current (24.2A versus 14.5A) and higher power dissipation (1000W versus 600W), with an extended upper operating temperature of 175°C. This substitute is suitable for applications requiring higher transient energy absorption.

P6SMB30CA (Eaton - Electronics Division) and P6SMB30CA TR13 PBFREE (Central Semiconductor Corp) provide equivalent voltage performance with minor variations in peak pulse current (14.7A and 14.4A respectively). Both maintain 600W power rating and SMB package compatibility.

TPSMB30CA (Littelfuse Inc.) matches the P6SMB30CA-M3/52 across all critical voltage parameters with extended temperature range to 175°C and AEC-Q101 automotive qualification.

SZP6SMB30CAT3G (Littelfuse Inc.) provides identical electrical performance with AEC-Q101 automotive qualification and specified capacitance of 335pF @ 1MHz.

Conditional Substitutes (Higher Clamping Voltage)

SM6T30CA and SM6T30CAY (STMicroelectronics) maintain matching voltage standoff and breakdown specifications but exhibit higher clamping voltage (53.5V versus 41.4V) and significantly higher peak pulse current (75A at 8/20µs). These parts are suitable only for applications where the higher clamping voltage is acceptable. SM6T30CAY includes AEC-Q101 automotive qualification.

Compliance and Certification Status

All listed substitutes maintain ROHS3 compliance or equivalent environmental certification. Parts designated with AEC-Q101 qualification (TPSMB30CAT3G, SM6T30CAY, SZP6SMB30CAT3G) are suitable for automotive applications. REACH status is consistent across all parts (Unaffected or Affected as noted in source data).

Frequently Asked Questions (FAQ)

Q: Can P6SMB30CA-E3/52 be used as a direct replacement for P6SMB30CA-M3/52?

A: Yes. Both parts are manufactured by Vishay and share identical electrical specifications, voltage ratings, and temperature range. The difference is packaging format: P6SMB30CA-M3/52 is supplied in Tape & Box, while P6SMB30CA-E3/52 is supplied in Tape & Reel. Selection depends on procurement volume and handling requirements.

Q: What is the difference between the P6SMB30CA-M3/52 and 1KSMB30CA?

A: Both parts maintain identical voltage standoff (25.6V), breakdown (28.5V), and clamping (41.4V) specifications. The 1KSMB30CA offers higher peak pulse current (24.2A versus 14.5A) and power dissipation (1000W versus 600W), with extended upper operating temperature (175°C versus 150°C). Use 1KSMB30CA when higher transient energy absorption is required.

Q: Are SM6T30CA and SM6T30CAY suitable replacements?

A: These parts match the voltage standoff and breakdown specifications but exhibit higher clamping voltage (53.5V versus 41.4V) and significantly higher peak pulse current (75A). They are suitable only if the application can tolerate the higher clamping voltage. SM6T30CAY includes AEC-Q101 automotive qualification.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is an automotive electronics qualification standard. Parts bearing this qualification (TPSMB30CA, SZP6SMB30CAT3G, SM6T30CAY) have undergone additional reliability testing and are approved for automotive applications. Use these parts when automotive-grade components are specified.

Q: Can I use TPSMB30CA in place of P6SMB30CA-M3/52?

A: Yes. TPSMB30CA (Littelfuse) matches all critical voltage parameters and maintains the DO-214AA SMB package. It offers extended temperature range (-65°C to 175°C) and AEC-Q101 automotive qualification. This is a suitable substitute for general-purpose and automotive applications.

Q: What is the significance of the packaging designation (Tape & Box versus Tape & Reel)?

A: Tape & Box (TB) packaging is typically used for smaller quantities and manual handling. Tape & Reel (TR) packaging is designed for automated assembly equipment and larger production volumes. Both formats contain the same component; selection depends on manufacturing process and order quantity.

Q: Are all listed substitutes RoHS compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance or equivalent environmental certification. Verify specific REACH status requirements for your application, as some parts are marked as REACH Affected.

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