P6SMB480A-E3/52 Equivalent & Substitute Parts

Part Overview

The P6SMB480A-E3/52 is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for general-purpose transient protection applications. This component features a 408V reverse standoff voltage with 658V maximum clamping voltage and 910mA peak pulse current capability in a surface-mount DO-214AA (SMB) package. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	P6SMB480A-E3/52
Manufacturer	Vishay General Semiconductor - Diodes Division
Category	Transient Voltage Suppressors (TVS)
Type	Zener, Unidirectional
Voltage - Reverse Standoff (Typ)	408V
Voltage - Breakdown (Min)	456V
Voltage - Clamping (Max) @ Ipp	658V
Current - Peak Pulse (10/1000µs)	910mA
Power - Peak Pulse	600W
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Operating Temperature	-65°C ~ 150°C (TJ)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB480A-E3/52 is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): 408V
Voltage - Breakdown (Min): 456V
Voltage - Clamping (Max) @ Ipp: 658V
Current - Peak Pulse (10/1000µs): 910mA or higher
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Type: Zener, Unidirectional

Substitute parts are grouped into three categories based on manufacturer and product status:

Direct Manufacturer Substitutes (Vishay): Parts P6SMB480A-M3/52, P6SMB480A-M3/5B, and P6SMB480AHE3_AIH maintain identical electrical specifications and are manufactured by Vishay. These parts differ in packaging configuration (Tape & Box vs. standard) and product status (Active vs. Obsolete).

Cross-Manufacturer Equivalents (Eaton, Micro Commercial Co): Part P6SMB480A (Eaton) and SMBJP6KE480A-TP (Micro Commercial Co) provide electrical equivalence with minor variations in peak pulse current (900mA vs. 910mA) and temperature range specifications.

Manufacturer-Recommended Alternative (Bourns): Part SMBJ408A from Bourns Inc. meets all critical electrical parameters and is recommended as a cross-manufacturer substitute with active product status.

Parameter Comparison

Parameter	P6SMB480A-E3/52 (Main)	P6SMB480A-M3/52	P6SMB480A-M3/5B	P6SMB480AHE3_AIH	P6SMB480A (Eaton)	SMBJP6KE480A-TP	SMBJ408A
Manufacturer	Vishay	Vishay	Vishay	Vishay	Eaton	Micro Commercial Co	Bourns Inc.
Voltage - Reverse Standoff (Typ)	408V	408V	408V	408V	408V	408V	408V
Voltage - Breakdown (Min)	456V	456V	456V	456V	456V	456V	456V
Voltage - Clamping (Max) @ Ipp	658V	658V	658V	658V	658V	658V	658V
Current - Peak Pulse (10/1000µs)	910mA	910mA	910mA	910mA	900mA	900mA	900mA
Power - Peak Pulse	600W	600W	600W	600W	600W	600W	600W
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	Not specified	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Vishay P6SMB Series): Parts P6SMB480A-M3/52 and P6SMB480A-M3/5B are direct Vishay alternatives with active product status and identical electrical specifications. These are preferred for designs requiring continuity with the original manufacturer and full parameter matching. P6SMB480A-M3/52 is packaged in Tape & Box configuration, while P6SMB480A-M3/5B uses the same packaging format with different reel specifications.

Automotive-Grade Alternative (Vishay P6SMB480AHE3_AIH): This variant is qualified to AEC-Q101 automotive standards and maintains active product status. Selection of this part is appropriate for automotive applications requiring transient protection with automotive-grade reliability.

Cross-Manufacturer Equivalents: P6SMB480A (Eaton) and SMBJP6KE480A-TP (Micro Commercial Co) provide functional equivalence with 900mA peak pulse current specification, which is 10mA lower than the original 910mA rating. Both parts maintain 600W peak pulse power and identical voltage parameters. Eaton's part is available in higher inventory quantities (25,355 pcs) and is suitable for general-purpose and telecom applications.

Manufacturer-Recommended Substitute (Bourns SMBJ408A): This part meets all critical electrical parameters and is recommended as a cross-manufacturer alternative. It maintains active product status and ROHS3 compliance. Operating temperature range is -55°C to 150°C, which is 10°C narrower on the low end compared to the original specification.

All substitute parts maintain DO-214AA (SMB) surface-mount packaging compatibility and are suitable for direct PCB footprint replacement.

Frequently Asked Questions (FAQ)

Q: Can P6SMB480A-M3/52 be used as a direct replacement for P6SMB480A-E3/52?

A: Yes. Both parts are manufactured by Vishay, share identical electrical specifications (408V standoff, 658V clamping, 910mA peak pulse), and use the same DO-214AA (SMB) package. The primary difference is product status: P6SMB480A-M3/52 is active while P6SMB480A-E3/52 is obsolete. Packaging configuration differs (Tape & Box vs. standard), but this does not affect electrical performance or PCB compatibility.

Q: What is the difference between P6SMB480A (Eaton) and the Vishay variants?

A: Eaton's P6SMB480A maintains identical voltage specifications (408V standoff, 658V clamping) and package format (DO-214AA, SMB). The peak pulse current is specified at 900mA compared to 910mA for Vishay parts, representing a 1% reduction. Operating temperature range is -55°C to 150°C versus -65°C to 150°C for Vishay, narrowing the low-temperature specification by 10°C. Both differences are within typical application tolerances for general-purpose transient protection.

Q: Is SMBJ408A from Bourns a suitable substitute?

A: Yes. SMBJ408A meets all critical electrical parameters: 408V reverse standoff, 658V clamping voltage, and 900mA peak pulse current. It is packaged in DO-214AA (SMB) format and maintains active product status with ROHS3 compliance. Operating temperature range is -55°C to 150°C. This part is suitable for applications where cross-manufacturer sourcing is acceptable.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by: (1) Voltage - Reverse Standoff of 408V, (2) Voltage - Breakdown minimum of 456V, (3) Voltage - Clamping maximum of 658V, (4) Peak Pulse Current of 900mA or higher, (5) DO-214AA (SMB) package format, and (6) Surface-mount mounting type. All listed substitute parts meet these criteria.

Q: Can I use SMBJP6KE480A-TP in a design originally specified for P6SMB480A-E3/52?

A: Yes. SMBJP6KE480A-TP from Micro Commercial Co maintains all critical electrical specifications: 408V standoff, 658V clamping, 900mA peak pulse current, and 600W peak pulse power. It uses the same DO-214AA (SMB) package and surface-mount configuration. The part is suitable for general-purpose transient protection applications.

Q: Does P6SMB480AHE3_AIH have any application restrictions?

A: P6SMB480AHE3_AIH is qualified to AEC-Q101 automotive standards and carries automotive-grade designation. It maintains identical electrical specifications to other Vishay variants and is suitable for both automotive and general-purpose applications. Selection of this part is recommended when automotive-grade reliability is required.

Q: Are all substitute parts RoHS compliant?

A: Most substitute parts are ROHS3 compliant (Vishay variants and Bourns SMBJ408A). Eaton's P6SMB480A is listed as RoHS Compliant without specific ROHS3 designation. SMBJP6KE480A-TP does not specify RoHS status in the provided data. Verify RoHS compliance requirements with your specific application and procurement standards.

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