SMP30A-M3/85A Equivalent & Substitute Parts

Part Overview

The SMP30A-M3/85A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is classified as a Zener-type TVS diode in the TransZorb® and eSMP® series, designed for general-purpose transient voltage suppression applications. The device is currently in active production status and is supplied in Tape & Reel packaging with DO-220AA surface mount configuration. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and compliance certifications to ensure seamless integration in circuit designs requiring TVS protection.

Substiute Parts

SMP30A-M3/85A

Vishay General Semiconductor - Diodes DivisionIn Stock: 10629SMP30A-M3/85A Datasheet

Current PartRFQ

SMP30A-M3/84A

Vishay General Semiconductor - Diodes DivisionIn Stock: 10380SMP30A-M3/84A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMP30A-M3/85A are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

• Voltage - Reverse Standoff: 30V (Typ)
• Voltage - Breakdown: 33.3V (Min)
• Voltage - Clamping: 48.4V (Max) @ Ipp
• Current - Peak Pulse: 8.3A (10/1000µs)
• Power - Peak Pulse: 400W
• Package / Case: DO-220AA
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C (TJ)

The SMP30A-M3/84A meets all these criteria and is therefore classified as a direct equivalent substitute. Both parts share identical electrical performance specifications, thermal characteristics, and physical packaging, ensuring functional interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SMP30A-M3/85A and SMP30A-M3/84A are active production components manufactured by Vishay General Semiconductor - Diodes Division. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use. The identical electrical specifications, thermal operating range, and DO-220AA surface mount packaging ensure that either part can be selected based on availability and supply chain considerations without compromising circuit performance or reliability.

Frequently Asked Questions (FAQ)

Q: Are SMP30A-M3/85A and SMP30A-M3/84A functionally interchangeable?

A: Yes. Both parts are direct equivalents with identical voltage ratings (30V reverse standoff, 33.3V breakdown minimum, 48.4V clamping maximum), current handling (8.3A peak pulse), power dissipation (400W peak pulse), and operating temperature range (-55°C to 150°C). They share the same DO-220AA surface mount package and can be used interchangeably in circuit designs.

Q: What determines substitution eligibility for TVS diodes in this category?

A: Substitution eligibility is determined by matching reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current rating, power dissipation capability, package type, and mounting configuration. All these parameters must align to ensure the substitute part provides equivalent transient voltage suppression performance.

Q: Are there any compliance or packaging differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, supplied in Tape & Reel packaging, and feature MSL 1 (Unlimited) moisture sensitivity rating. They are identical in compliance certifications and handling requirements.

Q: Can these parts be used in applications requiring power line protection?

A: No. Both the SMP30A-M3/85A and SMP30A-M3/84A are classified for general-purpose applications and do not include power line protection designation.