P6SMB30CA-M3/5B Equivalent & Substitute Parts

Part Overview

The P6SMB30CA-M3/5B is a transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This bidirectional Zener diode operates in the DO-214AA (SMB) surface mount package and is designed for general-purpose transient voltage suppression applications. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the original packaging format (Tape & Box) is unavailable, when alternative manufacturers are preferred for supply chain optimization, or when enhanced performance specifications are required for specific application demands.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	25.6V
Voltage - Breakdown (Min)	28.5V
Voltage - Clamping (Max) @ Ipp	41.4V
Current - Peak Pulse (10/1000µs)	14.5A
Power - Peak Pulse	600W
Operating Temperature Range	-65°C ~ 150°C (TJ)
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Type	Zener
Bidirectional Channels	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB30CA-M3/5B is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

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

Allowable Variation Parameters:

Current - Peak Pulse (10/1000µs): ±10% tolerance acceptable (13.05A minimum)
Power - Peak Pulse: Equal or greater rating acceptable
Operating Temperature Range: Equal or greater range acceptable
Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Tape & Box (TB) all acceptable for same electrical specifications

All substitute parts listed maintain identical voltage specifications and package form factor while meeting or exceeding the original part's current and power ratings.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package	Packaging Format
P6SMB30CA-M3/5B	Vishay General Semiconductor	25.6V	28.5V	41.4V	14.5A	600W	-65°C ~ 150°C	DO-214AA, SMB	Tape & Box
P6SMB30CA-E3/52	Vishay General Semiconductor	25.6V	28.5V	41.4V	14.5A	600W	-65°C ~ 150°C	DO-214AA, SMB	Tape & Reel
1KSMB30CA	Taiwan Semiconductor Corporation	25.6V	28.5V	41.4V	24.2A	1000W	-55°C ~ 175°C	DO-214AA, SMB	Tape & Reel
P6SMB30CA	Eaton - Electronics Division	25.6V	28.5V	41.4V	14.7A	600W	-55°C ~ 150°C	DO-214AA, SMB	Cut Tape & Digi-Reel
P6SMB30CA TR13 PBFREE	Central Semiconductor Corp	25.6V	28.5V	41.4V	14.4A	600W	-65°C ~ 150°C	DO-214AA, SMB	Tape & Reel
SM6T30CA	STMicroelectronics	25.6V	28.5V	53.5V	75A (8/20µs)	600W	-55°C ~ 150°C	DO-214AA, SMB	Cut Tape & Digi-Reel
SM6T30CAY	STMicroelectronics	25.6V	28.5V	53.5V	75A (8/20µs)	600W	-55°C ~ 150°C	DO-214AA, SMB	Cut Tape & Digi-Reel
SZP6SMB30CAT3G	Littelfuse Inc.	25.6V	28.5V	41.4V	14.4A	600W	-65°C ~ 150°C	DO-214AA, SMB	Tape & Reel
TPSMB30CA	Littelfuse Inc.	25.6V	28.5V	41.4V	14.7A	600W	-65°C ~ 175°C	DO-214AA, SMB	Tape & Reel

Engineering Selection Recommendations

Direct Electrical Equivalents (Identical Voltage & Current Specifications):

P6SMB30CA-E3/52 (Vishay) and P6SMB30CA TR13 PBFREE (Central Semiconductor) are direct functional equivalents with matching 25.6V standoff voltage, 41.4V clamping voltage, and 14.4-14.5A peak pulse current. Both maintain the -65°C to 150°C operating temperature range and are RoHS3 compliant. Selection between these depends on packaging format availability and supply chain preference.

Enhanced Performance Alternatives:

1KSMB30CA (Taiwan Semiconductor Corporation) provides superior current handling (24.2A peak pulse) and power dissipation (1000W vs 600W) while maintaining identical voltage specifications. This part extends the upper operating temperature to 175°C. Use this substitute when application requirements demand higher transient current capacity or extended thermal performance.

TPSMB30CA (Littelfuse Inc.) offers automotive-grade qualification (AEC-Q101) with extended temperature range (-65°C to 175°C) and maintains equivalent electrical specifications. This part is suitable for automotive and industrial applications requiring enhanced reliability certification.

Higher Clamping Voltage Alternatives:

SM6T30CA and SM6T30CAY (STMicroelectronics) feature elevated clamping voltage (53.5V vs 41.4V) with significantly higher peak pulse current (75A at 8/20µs). These parts are suitable only when circuit design permits higher clamping voltage. SM6T30CAY includes automotive qualification (AEC-Q101).

Compliance & Certification Status:

All listed substitutes maintain RoHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating. TPSMB30CA, SM6T30CAY, and SZP6SMB30CAT3G carry AEC-Q101 automotive qualification. Selection should align with end-application requirements and supply chain certifications.

Frequently Asked Questions (FAQ)

Q: Can I use SM6T30CA or SM6T30CAY as direct replacements for P6SMB30CA-M3/5B?

A: No. While these parts share the same 25.6V standoff voltage and DO-214AA package, they feature a higher clamping voltage of 53.5V compared to the original 41.4V specification. Use these only if your circuit design accommodates the higher clamping voltage and benefits from the increased peak pulse current (75A vs 14.5A).

Q: What is the difference between P6SMB30CA-M3/5B and P6SMB30CA-E3/52?

A: Both parts are manufactured by Vishay with identical electrical specifications (25.6V standoff, 41.4V clamping, 14.5A peak pulse). The primary difference is packaging format: P6SMB30CA-M3/5B uses Tape & Box (TB) while P6SMB30CA-E3/52 uses Tape & Reel (TR). Electrical performance is equivalent.

Q: Are automotive-qualified alternatives available?

A: Yes. TPSMB30CA (Littelfuse), SZP6SMB30CAT3G (Littelfuse), and SM6T30CAY (STMicroelectronics) all carry AEC-Q101 automotive qualification. TPSMB30CA and SZP6SMB30CAT3G maintain the original 41.4V clamping voltage specification.

Q: Which substitute offers the best thermal performance?

A: 1KSMB30CA (Taiwan Semiconductor Corporation) and TPSMB30CA (Littelfuse) both extend the upper operating temperature to 175°C compared to the original 150°C maximum. 1KSMB30CA additionally provides 1000W peak pulse power versus 600W in the original part.

Q: Can I interchange parts with different packaging formats (Tape & Box, Tape & Reel, Cut Tape)?

A: Yes. All listed substitutes use the same DO-214AA (SMB) surface mount package. Packaging format differences (TB, TR, CT) affect only the supply and handling method, not the electrical or mechanical compatibility on the PCB.

Q: What is the inventory status of these substitutes?

A: Inventory levels vary by manufacturer and distributor. P6SMB30CA-E3/52 (3806 pcs), 1KSMB30CA (18300 pcs), and TPSMB30CA (19114 pcs) show substantial availability. Verify current stock with your component supplier before design finalization.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message