SMP13A-M3/85A Equivalent & Substitute Parts

Part Overview

The SMP13A-M3/85A is an active Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This unidirectional zener diode is designed for general-purpose transient voltage suppression applications, featuring a 13V reverse standoff voltage and 21.5V maximum clamping voltage. The component is surface-mounted in a DO-220AA package and is ROHS3 compliant with unlimited moisture sensitivity rating. Substitute parts are identified when electrical characteristics, mechanical packaging, and compliance certifications remain equivalent across manufacturing batches or minor specification variations.

Substiute Parts

SMP13A-M3/85A

Vishay General Semiconductor - Diodes DivisionIn Stock: 12405SMP13A-M3/85A Datasheet

Current PartRFQ

SMP13A-M3/84A

Vishay General Semiconductor - Diodes DivisionIn Stock: 10455SMP13A-M3/84A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMP13A-M3/85A is determined by strict equivalence across the following parameters:

• Voltage - Reverse Standoff: 13V (Typ)
• Voltage - Breakdown: 14.4V (Min)
• Voltage - Clamping: 21.5V (Max) @ Ipp
• Current - Peak Pulse: 18.6A (10/1000µs)
• Power - Peak Pulse: 400W
• Package / Case: DO-220AA
• Mounting Type: Surface Mount
• Series: TransZorb® / eSMP®
• RoHS Status: ROHS3 Compliant

The substitute part SMP13A-M3/84A meets all electrical and mechanical requirements for direct substitution. Both parts share identical voltage ratings, current handling capacity, thermal operating range, and packaging specifications. The difference in manufacturing batch designation (84A vs. 85A) does not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both SMP13A-M3/85A and SMP13A-M3/84A are active products from Vishay General Semiconductor - Diodes Division with full ROHS3 compliance and REACH unaffected status. Selection between these parts may be based on inventory availability: SMP13A-M3/85A has 12,300 pieces in stock, while SMP13A-M3/84A has 10,400 pieces available. From an engineering perspective, either part is suitable for applications requiring 13V standoff voltage TVS protection with 18.6A peak pulse current handling in DO-220AA surface-mount packaging. No functional or compliance-based differentiation exists between the two parts.

Frequently Asked Questions (FAQ)

Q: Can SMP13A-M3/84A be used as a direct replacement for SMP13A-M3/85A?

A: Yes. Both parts are electrically and mechanically equivalent. All voltage ratings, current specifications, operating temperature range, and package dimensions are identical. The batch designation difference does not affect functional performance.

Q: What determines substitution eligibility for this TVS diode?

A: Substitution is valid when the following parameters match: reverse standoff voltage (13V), breakdown voltage (14.4V minimum), clamping voltage (21.5V maximum), peak pulse current (18.6A), peak pulse power (400W), package type (DO-220AA), and mounting method (surface mount). Both parts meet these criteria.

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

A: No. Both parts carry identical certifications: ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating. Both are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Q: What is the operating temperature range for these TVS diodes?

A: Both parts operate across -55°C to 150°C junction temperature (TJ), suitable for industrial and automotive applications requiring wide thermal operating windows.

Q: Are these parts suitable for power line protection applications?

A: No. Both SMP13A-M3/85A and SMP13A-M3/84A are designated for general-purpose transient voltage suppression. They are not rated for direct power line protection applications.