P6SMBJ480A Equivalent & Substitute Parts

Part Overview

The P6SMBJ480A is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage suppression applications. This component features a 408V reverse standoff voltage, 658V maximum clamping voltage, and 900mA peak pulse current capability in a surface-mount DO-214AA (SMB) package. The part is currently classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure supply chain availability.

Substiute Parts

P6SMBJ480A

Littelfuse Inc.In Stock: 1065P6SMBJ480A Datasheet

Current PartRFQ

P6SMB480A

Eaton - Electronics DivisionIn Stock: 25367P6SMB480A Datasheet

DirectRFQ

P6SMB480A

Eaton - Electronics DivisionIn Stock: 25367P6SMB480A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMBJ480A is determined by electrical and mechanical parameter equivalence. The primary substitute, P6SMB480A, maintains identical electrical specifications across all critical parameters: reverse standoff voltage (408V), breakdown voltage (456V minimum), clamping voltage (658V maximum), and peak pulse current (900mA). Both components are unidirectional Zener TVS diodes with single-channel configuration, identical power dissipation capability (600W peak pulse), and matching operating temperature range (-55°C to 150°C). The mechanical compatibility is confirmed through identical package designation (DO-214AA, SMB) and surface-mount mounting type. The key differentiator is product status: P6SMBJ480A is obsolete, while P6SMB480A is active, making it the direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB480A manufactured by Eaton - Electronics Division is the direct equivalent for the obsolete P6SMBJ480A. Selection of this substitute is supported by complete electrical parameter equivalence, identical mechanical packaging, and active product status ensuring ongoing availability. Both components maintain RoHS compliance and identical moisture sensitivity classification (MSL 1), confirming suitability for standard manufacturing and storage conditions. The Eaton component's active status provides supply chain continuity and access to current manufacturing documentation and technical support resources.

Frequently Asked Questions (FAQ)

Q: Can P6SMB480A be used as a direct replacement for P6SMBJ480A in existing designs?

A: Yes. Both components share identical electrical specifications (408V standoff, 658V clamping, 900mA peak pulse current), single-channel unidirectional Zener configuration, and DO-214AA SMB package geometry. No circuit modifications are required.

Q: Are there any compliance differences between the two parts?

A: Both components are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity classification. The P6SMBJ480A is ROHS3 compliant, while P6SMB480A is RoHS compliant. Both meet standard industrial compliance requirements.

Q: What is the primary reason for substitution?

A: The P6SMBJ480A is classified as obsolete. The P6SMB480A is an active product from Eaton, ensuring continued availability, manufacturing support, and technical documentation access.

Q: Are the packages physically identical?

A: Yes. Both components use the DO-214AA (SMB) surface-mount package with identical footprint and pin configuration, allowing direct PCB placement without layout modifications.

Q: What are the key electrical parameters that define substitution eligibility?

A: Reverse standoff voltage (408V), breakdown voltage minimum (456V), maximum clamping voltage (658V), peak pulse current (900mA), and peak pulse power (600W) must remain constant. Operating temperature range (-55°C to 150°C) and unidirectional single-channel configuration must also match.