SMP26A-M3/85A Equivalent & Substitute Parts

Part Overview

The SMP26A-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 product status with full inventory availability. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within the same product family.

Substiute Parts

SMP26A-M3/85A

Vishay General Semiconductor - Diodes DivisionIn Stock: 12133SMP26A-M3/85A Datasheet

Current PartRFQ

SMP26A-M3/84A

Vishay General Semiconductor - Diodes DivisionIn Stock: 10135SMP26A-M3/84A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMP26A-M3/85A are identified based on strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 26V
• Voltage - Breakdown (Min): 28.9V
• Voltage - Clamping (Max) @ Ipp: 42.1V
• Current - Peak Pulse (10/1000µs): 9.5A
• Power - Peak Pulse: 400W
• Package / Case: DO-220AA (SMP)
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Operating Temperature Range: -55°C to 150°C (TJ)

The SMP26A-M3/84A is classified as a direct substitute because it maintains identical electrical specifications and mechanical compatibility across all critical parameters. Both parts belong to the same TransZorb® and eSMP® series, share the same base product number (SMP26), and are manufactured by the same supplier using the same package technology.

Parameter Comparison

Engineering Selection Recommendations

Both the SMP26A-M3/85A and SMP26A-M3/84A are active products with full regulatory compliance. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Both maintain Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Selection between these parts should be based on component availability and supply chain requirements. No electrical or mechanical performance differentiation exists between the two part numbers. Both are suitable for direct substitution in applications requiring 26V reverse standoff TVS diode protection with 9.5A peak pulse current capability in DO-220AA surface mount packaging.

Frequently Asked Questions (FAQ)

Q: Can SMP26A-M3/84A be used as a direct replacement for SMP26A-M3/85A?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters, including voltage ratings, current ratings, power dissipation, operating temperature range, and package specifications. Direct substitution is supported without circuit modification.

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

A: No. Both parts carry identical RoHS3 compliance status, REACH unaffected designation, and Moisture Sensitivity Level 1 (Unlimited) rating. No compliance or certification differences exist.

Q: What is the significance of the different suffix designations (85A vs. 84A)?

A: The suffix designations reflect internal Vishay manufacturing or tape reel configuration variations. These designations do not indicate electrical or functional differences. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and belong to the same TransZorb® and eSMP® product series with identical base product number SMP26.

Q: Are both parts available in the same packaging format?

A: Yes. Both SMP26A-M3/85A and SMP26A-M3/84A are supplied in Tape & Reel (TR) packaging with DO-220AA (SMP) surface mount package configuration. No packaging differences exist.

Q: What applications are these TVS diodes suitable for?

A: Both parts are classified for general-purpose transient voltage suppression applications. The 26V reverse standoff rating and 9.5A peak pulse current capability make these devices suitable for protecting sensitive circuits from transient overvoltage events in standard industrial and commercial applications.