P4SMA30A-M3/5A Equivalent & Substitute Parts

Part Overview

The P4SMA30A-M3/5A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 25.6V reverse standoff voltage class and provides transient protection for general-purpose applications. The part is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when original inventory becomes unavailable or when alternative packaging configurations are required for procurement flexibility.

Substiute Parts

P4SMA30A-M3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1128P4SMA30A-M3/5A Datasheet

Current PartRFQ

P4SMA30A-E3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 12905P4SMA30A-E3/61 Datasheet

DirectRFQ

P4SMA30A

Eaton - Electronics DivisionIn Stock: 1632P4SMA30A Datasheet

MFR RecommendedRFQ

RSA30LTE25

Rohm SemiconductorIn Stock: 5340RSA30LTE25 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4SMA30A-M3/5A is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 25.6V
• Voltage - Clamping (Max) @ Ipp: 41.4V
• Voltage - Breakdown (Min): 28.5V
• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional

Substitute parts must maintain identical voltage specifications (reverse standoff, breakdown, and clamping voltages) and surface mount configuration. Variations in peak pulse current and power dissipation are permissible when the substitute part meets or exceeds the original specifications. Packaging tape & reel configuration and RoHS compliance status are secondary considerations for substitution validity.

Parameter Comparison

Engineering Selection Recommendations

P4SMA30A-E3/61 (Vishay) is the primary direct substitute. This part maintains identical electrical specifications and operating temperature range as the P4SMA30A-M3/5A, with only the tape & reel configuration differing. Both parts carry Active product status and ROHS3 compliance.

P4SMA30A (Eaton) is a manufacturer-recommended alternative that meets all voltage specifications. The operating temperature minimum is -55°C versus -65°C on the Vishay variant. This part is suitable for applications where the lower temperature bound is not a design constraint. Eaton classification as Active product status supports long-term availability.

RSA30LTE25 (Rohm Semiconductor) provides electrical performance exceeding the original specification with 14.4A peak pulse current and 600W power dissipation. However, this part carries Not For New Designs status, limiting its suitability for new product development. Use is restricted to legacy system maintenance or replacement scenarios where existing inventory must be maintained.

Frequently Asked Questions (FAQ)

Q: Can P4SMA30A-E3/61 be used as a direct replacement for P4SMA30A-M3/5A?

A: Yes. Both parts are manufactured by Vishay with identical electrical specifications, voltage ratings, and operating temperature range. The difference is limited to tape & reel packaging configuration.

Q: What is the key difference between the Vishay and Eaton P4SMA30A variants?

A: The Eaton P4SMA30A has a minimum operating temperature of -55°C compared to -65°C for Vishay parts. All voltage specifications and peak pulse ratings are identical. Selection depends on application temperature requirements.

Q: Is RSA30LTE25 suitable for new product designs?

A: No. RSA30LTE25 carries Not For New Designs product status. This part is appropriate only for replacement or maintenance of existing systems. New designs should use P4SMA30A-M3/5A, P4SMA30A-E3/61, or P4SMA30A (Eaton).

Q: Do all substitute parts use the same DO-214AC (SMA) package?

A: Yes. All listed substitutes use DO-214AC (SMA) surface mount packaging, ensuring mechanical and electrical compatibility with existing PCB layouts.

Q: What compliance certifications apply to these parts?

A: P4SMA30A-M3/5A, P4SMA30A-E3/61, and RSA30LTE25 are ROHS3 compliant. P4SMA30A (Eaton) is RoHS compliant. All parts are REACH unaffected and classified under ECCN EAR99.