SMAJ36A-M3/5A Equivalent & Substitute Parts

Part Overview

The SMAJ36A-M3/5A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 36V reverse standoff voltage class and is designed for general-purpose transient protection applications. The part is Active status and ROHS3 compliant, making it suitable for modern electronic designs requiring ESD and surge protection.

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging options are required, or when sourcing from multiple manufacturers is needed to optimize supply chain resilience and cost efficiency.

Substiute Parts

SMAJ36A-M3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1163SMAJ36A-M3/5A Datasheet

Current PartRFQ

SMAJ36A-E3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 6996SMAJ36A-E3/61 Datasheet

DirectRFQ

SMAJ36A

MDDIn Stock: 7893SMAJ36A Datasheet

DirectRFQ

SMAJ36A-13-F

Diodes IncorporatedIn Stock: 15251SMAJ36A-13-F Datasheet

DirectRFQ

SMAJ36A-TP

Micro Commercial CoIn Stock: 4588SMAJ36A-TP Datasheet

DirectRFQ

SZ1SMA36AT3G

Littelfuse Inc.In Stock: 9055SZ1SMA36AT3G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMAJ36A-M3/5A is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 36V
• Voltage - Breakdown (Min): 40V
• Voltage - Clamping (Max) @ Ipp: 58.1V
• Current - Peak Pulse (10/1000µs): 6.9A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional (1 channel)

All identified substitute parts maintain identical electrical specifications across voltage ratings, clamping characteristics, and peak pulse current ratings. All substitutes are surface mount components in the DO-214AC (SMA) package format. Compliance certifications (ROHS3, MSL 1) are consistent across all alternatives.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain full electrical equivalence to the SMAJ36A-M3/5A across all critical parameters. Selection should be based on the following factors:

Manufacturer Availability: SMAJ36A-E3/61 (Vishay) and SMAJ36A-13-F (Diodes Incorporated) offer the highest inventory levels (6930 and 15200 units respectively), providing supply chain stability.

Compliance & Certification: All parts are ROHS3 compliant with MSL 1 rating. The SZ1SMA36AT3G from Littelfuse includes AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade components.

Temperature Range Considerations: SMAJ36A-TP (Micro Commercial Co) extends the upper operating temperature to 175°C (TA), providing enhanced thermal margin for high-temperature environments. SZ1SMA36AT3G offers the widest temperature range (-65°C to 150°C TJ), beneficial for extreme cold applications.

Packaging & Sourcing: All parts are available in Tape & Reel (TR) packaging suitable for automated assembly. The MDD SMAJ36A variant offers the broadest availability at 7870 units.

Frequently Asked Questions (FAQ)

Q: Can SMAJ36A-M3/5A be directly replaced with any of the listed substitutes?

A: Yes. All listed parts maintain identical electrical specifications: 36V reverse standoff voltage, 40V minimum breakdown voltage, 58.1V maximum clamping voltage, and 6.9A peak pulse current. All are surface mount components in the DO-214AC (SMA) package. Direct substitution is electrically valid.

Q: Are there any temperature range differences I should consider?

A: Most substitutes operate within -55°C to 150°C (TJ). The SMAJ36A (MDD) has a slightly narrower lower limit at -50°C. The SMAJ36A-TP extends to 175°C (TA), and SZ1SMA36AT3G covers -65°C to 150°C (TJ). Select based on your application's thermal requirements.

Q: What is the difference between the Vishay SMAJ36A-M3/5A and SMAJ36A-E3/61?

A: Both are Vishay products with identical electrical and thermal specifications. The difference lies in packaging designation and inventory availability. SMAJ36A-E3/61 has significantly higher stock (6930 vs 1119 units).

Q: Is the SZ1SMA36AT3G suitable for automotive applications?

A: Yes. The SZ1SMA36AT3G carries AEC-Q101 automotive qualification and is part of Littelfuse's automotive-grade SZ1SMA series, making it appropriate for automotive transient protection circuits.

Q: Do all parts use the same DO-214AC (SMA) package?

A: Yes. All substitute parts are packaged in DO-214AC (SMA) format, ensuring mechanical and footprint compatibility with the original SMAJ36A-M3/5A design.

Q: Which substitute offers the best supply availability?

A: SMAJ36A-13-F (Diodes Incorporated) has the highest inventory at 15200 units, followed by SMAJ36A (MDD) at 7870 units and SZ1SMA36AT3G (Littelfuse) at 9042 units.