SMP24A-M3/85A Equivalent & Substitute Parts

Part Overview

The SMP24A-M3/85A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for general-purpose transient voltage suppression applications, featuring a 24V reverse standoff voltage and 38.9V maximum clamping voltage. The part is currently in active product status and is supplied in DO-220AA surface mount packaging on tape and reel. Alternative equivalent parts are available to support procurement flexibility and inventory management.

Substiute Parts

SMP24A-M3/85A

Vishay General Semiconductor - Diodes DivisionIn Stock: 663SMP24A-M3/85A Datasheet

Current PartRFQ

SMP24A-M3/84A

Vishay General Semiconductor - Diodes DivisionIn Stock: 10431SMP24A-M3/84A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMP24A-M3/85A is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 24V
• Voltage - Breakdown (Min): 26.7V
• Voltage - Clamping (Max) @ Ipp: 38.9V
• Current - Peak Pulse (10/1000µs): 10.3A
• Power - Peak Pulse: 400W
• Package / Case: DO-220AA
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Type: Zener

The substitute part SMP24A-M3/84A meets all these electrical and mechanical specifications, making it a direct equivalent for circuit-level replacement without design modification.

Parameter Comparison

Engineering Selection Recommendations

Both the SMP24A-M3/85A and SMP24A-M3/84A are active products manufactured by Vishay General Semiconductor - Diodes Division. Both parts are ROHS3 compliant and carry identical electrical specifications and mechanical packaging. Selection between these parts may be based on inventory availability and procurement lead times. The SMP24A-M3/84A currently has higher inventory availability (10,400 pcs) compared to the SMP24A-M3/85A (645 pcs), making it a viable alternative for applications requiring immediate component sourcing.

Frequently Asked Questions (FAQ)

Q: Can SMP24A-M3/84A be used as a direct replacement for SMP24A-M3/85A?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage ratings, current handling, package type, and operating temperature range. No circuit redesign is required.

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

A: No. Both parts carry identical RoHS3 compliance status, REACH unaffected status, and moisture sensitivity level (MSL 1 - Unlimited).

Q: What is the significance of the different part number suffixes (85A vs. 84A)?

A: The suffix variation indicates different manufacturing batches or tape reel configurations from Vishay. The electrical and mechanical specifications remain identical.

Q: Is the DO-220AA package compatible with existing PCB designs for both parts?

A: Yes. Both parts use the identical DO-220AA surface mount package, ensuring footprint and assembly compatibility without PCB modification.

Q: Are there any thermal or reliability differences between these parts?

A: No. Both parts share identical operating temperature ranges (-55°C ~ 150°C TJ) and power dissipation ratings (400W peak pulse).