P4SMA510AHM3_A/I Equivalent & Substitute Parts

Part Overview

The P4SMA510AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, part of the P4SMA TransZorb® series. This surface mount component is designed for transient voltage protection in telecom applications, featuring a 434V reverse standoff voltage and 698V maximum clamping voltage. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain identical electrical and mechanical specifications for continued system support and procurement.

Substiute Parts

P4SMA510AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 778P4SMA510AHM3_A/I Datasheet

Current PartRFQ

P4SMA510AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 863P4SMA510AHM3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4SMA510AHM3_A/I is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Voltage - Reverse Standoff (Typ): 434V
• Voltage - Breakdown (Min): 485V
• Voltage - Clamping (Max) @ Ipp: 698V
• Current - Peak Pulse (10/1000µs): 430mA
• Power - Peak Pulse: 400W

Mechanical Parameters (Must Match Exactly):

• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• Unidirectional Channels: 1

Compliance & Certification (Must Match Exactly):

• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part P4SMA510AHM3_B/I meets all specified criteria and is classified as a direct equivalent within the P4SMA TransZorb® series.

Parameter Comparison

Engineering Selection Recommendations

P4SMA510AHM3_B/I is the direct equivalent substitute for the discontinued P4SMA510AHM3_A/I. Selection of this substitute is based on the following engineering criteria:

Electrical Equivalence: All voltage parameters (reverse standoff, breakdown, and clamping) and current specifications are identical. Peak pulse power rating matches at 400W, ensuring equivalent transient protection performance in telecom applications.

Mechanical Compatibility: Both components utilize the DO-214AC (SMA) surface mount package, enabling direct PCB footprint compatibility without layout modifications.

Compliance & Certification: The substitute maintains Automotive grade classification and AEC-Q101 qualification, meeting the same reliability and quality standards as the original part. ROHS3 compliance and MSL 1 rating are preserved.

Product Status Advantage: P4SMA510AHM3_B/I is currently in active production status with confirmed inventory availability (753 Pcs New Original In Stock), providing supply chain continuity for the discontinued P4SMA510AHM3_A/I.

Regulatory Alignment: REACH unaffected status and EAR99 ECCN classification remain consistent, maintaining compliance with export and environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can P4SMA510AHM3_B/I be used as a direct replacement for P4SMA510AHM3_A/I in existing designs?

A: Yes. P4SMA510AHM3_B/I is a direct equivalent. All electrical parameters, mechanical specifications, and compliance certifications are identical. No design modifications are required.

Q: What is the difference between the A/I and B/I variants?

A: The provided data indicates both parts are identical in all electrical, mechanical, and compliance specifications. The suffix designation (A/I versus B/I) represents different manufacturing batches or date codes within the same product specification. Both are P4SMA510 base products with identical performance characteristics.

Q: Are the DO-214AC (SMA) packages interchangeable between these parts?

A: Yes. Both components use the DO-214AC (SMA) surface mount package with identical pinout and footprint. PCB assembly equipment and soldering processes require no adjustment.

Q: Does the substitute part maintain automotive qualification?

A: Yes. P4SMA510AHM3_B/I carries Automotive grade classification and AEC-Q101 qualification, identical to the original part. It meets the same reliability and quality standards for automotive and telecom applications.

Q: What is the inventory status of the substitute part?

A: P4SMA510AHM3_B/I is currently in active production with 753 Pcs New Original In Stock available, providing immediate procurement capability compared to the discontinued P4SMA510AHM3_A/I.

Q: Are there any thermal or operating temperature differences?

A: No. Both parts operate across the identical temperature range of -65°C to 150°C (TJ), with no derating or thermal management differences.

Q: Is the moisture sensitivity level the same?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions and unlimited shelf life under standard storage conditions.