P4SMA480 Equivalent & Substitute Parts

Part Overview

The P4SMA480 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection in surface-mount applications. The device features a 408V reverse standoff voltage, 690.9V maximum clamping voltage, and 400W peak pulse power rating in a DO-214AC (SMA) package.

The P4SMA480 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production and field replacements.

Substiute Parts

P4SMA480

Littelfuse Inc.In Stock: 1079P4SMA480 Datasheet

Current PartRFQ

P4SMA480A

Diotec SemiconductorIn Stock: 83890P4SMA480A Datasheet

DirectRFQ

P4SMA480A

Diotec SemiconductorIn Stock: 83890P4SMA480A Datasheet

DirectRFQ

SMAJP4KE480A-TP

Micro Commercial CoIn Stock: 753SMAJP4KE480A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4SMA480 are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 408V
• Voltage - Clamping (Max) @ Ipp: ≤ 690.9V
• Current - Peak Pulse (10/1000µs): ≥ 600mA
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional (1 channel)
• Applications: General Purpose

Two substitute parts meet these criteria: P4SMA480A (Diotec Semiconductor) and SMAJP4KE480A-TP (Micro Commercial Co). Both maintain the same reverse standoff voltage, clamping voltage within acceptable limits, peak pulse current capability, and identical package specifications.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturing support, addressing the obsolescence of the original P4SMA480.

P4SMA480A (Diotec Semiconductor) is available in high volume (83,800 pcs in stock) and maintains identical reverse standoff voltage and clamping voltage specifications within acceptable engineering tolerances. This part is suitable for direct replacement in applications requiring standard compliance.

SMAJP4KE480A-TP (Micro Commercial Co) offers an extended operating temperature range (-55 to 175°C) compared to the original part (-65 to 150°C), providing additional thermal margin for high-temperature applications. This part is available in lower volume (701 pcs in stock) and is classified as REACH Unaffected.

Both parts are packaged in DO-214AC (SMA) surface-mount format and are electrically compatible with the original P4SMA480 for general-purpose transient voltage suppression applications.

Frequently Asked Questions (FAQ)

Q: Can P4SMA480A and SMAJP4KE480A-TP be used interchangeably with P4SMA480?

A: Both substitute parts meet the electrical and mechanical requirements for direct replacement. They maintain the same reverse standoff voltage (408V), operate at identical power levels (400W peak pulse), and use the same DO-214AC (SMA) package. Differences in clamping voltage (658V vs. 690.9V) and peak pulse current (610mA vs. 600mA) are within acceptable engineering tolerances for general-purpose TVS applications.

Q: What is the difference between P4SMA480A and SMAJP4KE480A-TP?

A: Both parts share identical electrical specifications for reverse standoff voltage, clamping voltage, and power rating. The primary differences are: (1) SMAJP4KE480A-TP offers an extended operating temperature range (-55 to 175°C vs. -50 to 150°C), (2) packaging format (Tape & Reel for P4SMA480A vs. Bulk for SMAJP4KE480A-TP), and (3) inventory availability. Selection depends on thermal requirements and procurement volume needs.

Q: Are there compliance or certification differences between these parts?

A: P4SMA480A (Diotec) does not list RoHS or REACH status as applicable. SMAJP4KE480A-TP (Micro Commercial Co) is classified as REACH Unaffected. The original P4SMA480 is ROHS3 Compliant. Compliance requirements should be verified against specific application and regional regulations.

Q: What package format should I specify for procurement?

A: All three parts use the DO-214AC (SMA) surface-mount package, ensuring mechanical and electrical compatibility on existing PCBs. P4SMA480A is supplied in Tape & Reel format, while SMAJP4KE480A-TP is supplied in Bulk format. Packaging selection depends on production volume and assembly line requirements.

Q: Can I use these parts in high-temperature applications?

A: SMAJP4KE480A-TP supports operation up to 175°C junction temperature, exceeding the original P4SMA480 specification (150°C). P4SMA480A is rated to 150°C, matching the original part. For applications requiring extended thermal performance, SMAJP4KE480A-TP is the appropriate selection.