P4SMA510A-E3/61 Equivalent & Substitute Parts

Part Overview

The P4SMA510A-E3/61 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 434V reverse standoff voltage with 698V maximum clamping voltage and 430mA peak pulse current capability in a surface-mount DO-214AC (SMA) package. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

P4SMA510A-E3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 813P4SMA510A-E3/61 Datasheet

Current PartRFQ

P4SMA510A-M3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 1109P4SMA510A-M3/61 Datasheet

DirectRFQ

P4SMA510AHE3_AIH

Vishay General Semiconductor - Diodes DivisionIn Stock: 916P4SMA510AHE3_AIH Datasheet

DirectRFQ

P4SMA510A

Littelfuse Inc.In Stock: 40476P4SMA510A Datasheet

DirectRFQ

SMAJP4KE510A-TP

Micro Commercial CoIn Stock: 1134SMAJP4KE510A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4SMA510A-E3/61 is determined by the following critical parameters:

• Voltage Rating Match: Reverse standoff voltage of 434V ±tolerance, breakdown voltage minimum of 485V, and clamping voltage maximum of 698V
• Current Capability: Peak pulse current rating of 430mA or higher
• Power Dissipation: Peak pulse power rating of 300W or higher
• Package Compatibility: DO-214AC (SMA) surface-mount package
• Temperature Range: Operating range of -65°C to 150°C or wider
• Electrical Type: Unidirectional Zener TVS diode configuration

Substitute parts are grouped into three categories based on manufacturer and packaging configuration: direct Vishay equivalents with identical electrical specifications, cross-manufacturer alternatives with equivalent or superior electrical performance, and manufacturer-recommended alternatives with enhanced specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Vishay Direct Equivalents)

P4SMA510A-M3/61 and P4SMA510AHE3_AIH are direct Vishay equivalents with identical electrical specifications to the obsolete P4SMA510A-E3/61. Both parts maintain the same voltage ratings, current capability, and temperature range. P4SMA510A-M3/61 is supplied in Tape & Reel packaging and carries Active product status. P4SMA510AHE3_AIH is qualified to AEC-Q101 automotive standards and is suitable for applications requiring automotive-grade components.

Secondary Substitute (Littelfuse P4SMA510A)

The Littelfuse P4SMA510A provides enhanced electrical performance with 600mA peak pulse current and 400W peak pulse power compared to the 430mA and 300W specifications of the main part. This part maintains identical voltage ratings and temperature range, making it a direct functional upgrade. Active product status and ROHS3 compliance are confirmed.

Manufacturer-Recommended Alternative (Micro Commercial Co SMAJP4KE510A-TP)

The SMAJP4KE510A-TP from Micro Commercial Co meets all voltage and current requirements with 600mA peak pulse current and 400W peak pulse power. This part features an extended operating temperature range of -55°C to 175°C. The DO-214AC (SMAJ) package is mechanically compatible with standard DO-214AC footprints.

Frequently Asked Questions (FAQ)

Q: Can P4SMA510A-M3/61 directly replace P4SMA510A-E3/61?

A: Yes. Both parts share identical electrical specifications: 434V reverse standoff voltage, 485V minimum breakdown voltage, 698V maximum clamping voltage, 430mA peak pulse current, and 300W peak pulse power. The primary difference is packaging configuration (Tape & Reel versus bulk) and product status (Active versus Obsolete). PCB footprint and mounting requirements are identical.

Q: What is the difference between P4SMA510A-M3/61 and P4SMA510AHE3_AIH?

A: Both parts have identical electrical specifications and package type (DO-214AC, SMA). The key distinction is that P4SMA510AHE3_AIH carries AEC-Q101 automotive qualification, making it suitable for automotive applications requiring automotive-grade component certification. Standard industrial applications can use either part.

Q: Why does the Littelfuse P4SMA510A have higher current and power ratings?

A: The Littelfuse variant specifies 600mA peak pulse current and 400W peak pulse power compared to 430mA and 300W for the Vishay parts. This represents enhanced performance capability while maintaining identical voltage protection characteristics. Applications requiring higher transient current handling benefit from this upgrade.

Q: Is the SMAJP4KE510A-TP package compatible with existing P4SMA510A-E3/61 designs?

A: Yes. The SMAJP4KE510A-TP uses the DO-214AC (SMAJ) package, which is mechanically and electrically compatible with standard DO-214AC (SMA) footprints. PCB layout modifications are not required. The extended temperature range of -55°C to 175°C provides additional operational margin.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, matching the compliance profile of the original P4SMA510A-E3/61.

Q: Which substitute should be selected for new designs?

A: For direct replacement with identical specifications, select P4SMA510A-M3/61 or P4SMA510AHE3_AIH (automotive applications). For enhanced performance with higher current and power ratings, select the Littelfuse P4SMA510A or SMAJP4KE510A-TP. All parts meet the core voltage protection requirements of the original design.