P6SMB400A-E3/52 Equivalent & Substitute Parts

Part Overview

The P6SMB400A-E3/52 is a unidirectional transient voltage suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, rated for 342V reverse standoff with 548V maximum clamping voltage. This surface mount component in DO-214AA (SMB) package is designed for general purpose transient protection applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	342V
Voltage - Breakdown (Min)	380V
Voltage - Clamping (Max) @ Ipp	548V
Current - Peak Pulse (10/1000µs)	1.1A
Power - Peak Pulse	600W
Operating Temperature Range	-65°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
Type	Zener
Unidirectional Channels	1

Substitute Part Grouping Explanation

Substitution for the P6SMB400A-E3/52 is determined by matching the following critical electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 342V
Voltage - Clamping (Max) @ Ipp: 548V
Current - Peak Pulse (10/1000µs): 1.1A (±10% tolerance acceptable)
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Type: Zener, Unidirectional
Mounting Type: Surface Mount

Substitute parts are grouped into three categories based on product status and packaging configuration: active Vishay variants with different packaging codes, active parts from alternative manufacturers (Eaton, Micro Commercial Co, Comchip Technology), and automotive-qualified variants with AEC-Q101 certification.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package	Product Status
P6SMB400A-E3/52	Vishay General Semiconductor	342V	548V	1.1A	600W	-65°C ~ 150°C	DO-214AA (SMB)	Obsolete
P6SMB400A-M3/52	Vishay General Semiconductor	342V	548V	1.1A	600W	-65°C ~ 150°C	DO-214AA (SMBJ)	Active
P6SMB400A-M3/5B	Vishay General Semiconductor	342V	548V	1.1A	600W	-65°C ~ 150°C	DO-214AA (SMBJ)	Active
P6SMB400AHE3_AIH	Vishay General Semiconductor	342V	548V	1.1A	600W	-65°C ~ 150°C	DO-214AA (SMB)	Active
P6SMB400AHE3_ALL	Vishay General Semiconductor	342V	548V	1.1A	600W	-65°C ~ 150°C	DO-214AA (SMB)	Active
P6SMB400A	Eaton - Electronics Division	342V	548V	1.1A	600W	-55°C ~ 150°C	DO-214AA (SMB)	Active
SMBJP6KE400A-TP	Micro Commercial Co	342V	548V	1.1A	600W	-55°C ~ 175°C	DO-214AA (SMBJ)	Active
TVP06B401A-G	Comchip Technology	342V	548V	1.09A	600W	-55°C ~ 150°C	DO-214AA (SMB)	Active

Engineering Selection Recommendations

Primary Substitutes (Vishay P6SMB Series - Same Manufacturer)

P6SMB400A-M3/52 and P6SMB400A-M3/5B are direct electrical equivalents with identical electrical specifications. Both are active products with Tape & Box packaging. P6SMB400AHE3_AIH and P6SMB400AHE3_ALL are automotive-qualified variants meeting AEC-Q101 certification, suitable for applications requiring automotive-grade reliability.

Secondary Substitutes (Alternative Manufacturers)

P6SMB400A from Eaton Electronics and SMBJP6KE400A-TP from Micro Commercial Co provide identical electrical performance with active product status. The Eaton variant operates at -55°C minimum (versus -65°C for Vishay), while the Micro Commercial Co part extends to -55°C ~ 175°C operating range. TVP06B401A-G from Comchip Technology matches all electrical parameters with 1.09A peak pulse current (within tolerance of 1.1A specification) and is AEC-Q101 qualified.

Compliance Considerations

All substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. Automotive applications should prioritize P6SMB400AHE3_AIH, P6SMB400AHE3_ALL, or TVP06B401A-G due to AEC-Q101 qualification.

Frequently Asked Questions (FAQ)

Q: Can P6SMB400A-M3/52 directly replace P6SMB400A-E3/52?

A: Yes. Both parts share identical electrical specifications: 342V reverse standoff, 548V clamping voltage, 1.1A peak pulse current, and 600W peak power. The primary difference is packaging configuration (Tape & Box versus standard packaging) and product status (Active versus Obsolete). Electrical performance and PCB footprint compatibility are equivalent.

Q: What is the difference between DO-214AA (SMB) and DO-214AA (SMBJ) packages?

A: Both designations refer to the same physical DO-214AA surface mount package. The SMBJ designation indicates a variant with enhanced lead design. For PCB layout and reflow soldering, both are mechanically compatible. Verify with your PCB assembly partner if specific lead geometry is required.

Q: Are automotive-qualified variants (P6SMB400AHE3_AIH, P6SMB400AHE3_ALL) necessary for non-automotive applications?

A: No. Automotive qualification (AEC-Q101) is required only for automotive end-use applications. For general purpose and telecom applications, standard P6SMB400A variants from Vishay, Eaton, or Micro Commercial Co are appropriate.

Q: How does the Comchip TVP06B401A-G compare to Vishay P6SMB400A variants?

A: TVP06B401A-G meets all critical electrical parameters with 1.09A peak pulse current (within tolerance of the 1.1A specification). Operating temperature range is -55°C ~ 150°C. The part is AEC-Q101 qualified and suitable for both general purpose and automotive applications.

Q: What is the impact of the -55°C minimum operating temperature on Eaton and Micro Commercial Co parts versus Vishay's -65°C?

A: The -55°C minimum temperature specification is acceptable for most industrial and commercial applications. If your design requires operation below -55°C, select Vishay P6SMB400A variants (P6SMB400A-M3/52, P6SMB400A-M3/5B, or P6SMB400AHE3 series) which specify -65°C minimum.

Q: Can I use SMBJP6KE400A-TP in applications requiring extended temperature operation?

A: Yes. SMBJP6KE400A-TP operates to 175°C maximum junction temperature, providing extended high-temperature capability compared to standard variants rated to 150°C. This is beneficial for applications with elevated ambient or self-heating conditions.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message