SMAJ36A-TP Equivalent & Substitute Parts

Part Overview

The SMAJ36A-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 36V reverse standoff voltage with a 58.1V maximum clamping voltage and 6.9A peak pulse current capability in a DO-214AC (SMA) package. The part is Active status and ROHS3 compliant. Substitute parts are identified based on matching electrical specifications, package compatibility, and operational temperature ranges to ensure functional equivalence in circuit protection applications.

Key Parameters

Parameter	Value
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
Operating Temperature	-55°C ~ 175°C (TA)
Type	Zener
Unidirectional Channels	1
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SMAJ36A-TP are qualified based on the following criteria:

Electrical Parameter Matching:

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 Compatibility:

Package / Case: DO-214AC, SMA

Compliance Requirements:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts maintain identical electrical performance specifications and package form factors. Operating temperature ranges may vary within acceptable limits for general-purpose TVS applications. All substitutes are Active status components from qualified manufacturers.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	RoHS Status	Product Status
SMAJ36A-TP	Micro Commercial Co	36V	40V	58.1V	6.9A	400W	-55°C ~ 175°C (TA)	DO-214AC, SMA	ROHS3 Compliant	Active
SMAJ36A	MDD	36V	40V	58.1V	6.9A	400W	-50°C ~ 150°C (TJ)	DO-214AC, SMA	ROHS3 Compliant	Active
SMAJ36A-13-F	Diodes Incorporated	36V	40V	58.1V	6.9A	400W	-55°C ~ 150°C (TJ)	DO-214AC, SMA	ROHS3 Compliant	Active
SMAJ36A-E3/61	Vishay General Semiconductor - Diodes Division	36V	40V	58.1V	6.9A	400W	-55°C ~ 150°C (TJ)	DO-214AC, SMA	ROHS3 Compliant	Active
SMAJ36A-M3/61	Vishay General Semiconductor - Diodes Division	36V	40V	58.1V	6.9A	400W	-55°C ~ 150°C (TJ)	DO-214AC, SMA	ROHS3 Compliant	Active
SZ1SMA36AT3G	Littelfuse Inc.	36V	40V	58.1V	6.9A	400W	-65°C ~ 150°C (TJ)	DO-214AC, SMA	ROHS3 Compliant	Active

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the SMAJ36A-TP. Selection among these alternatives should be based on:

Manufacturer Availability: MDD SMAJ36A, Diodes Incorporated SMAJ36A-13-F, Vishay SMAJ36A-E3/61, Vishay SMAJ36A-M3/61, and Littelfuse SZ1SMA36AT3G are all Active status components with confirmed inventory availability.

Compliance Certification: All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental qualification.

Temperature Operating Range: The SMAJ36A-TP operates from -55°C to 175°C (TA). Most substitutes operate within -55°C to 150°C (TJ) or -50°C to 150°C (TJ) ranges. The MDD SMAJ36A has a narrower range (-50°C to 150°C). The Littelfuse SZ1SMA36AT3G extends to -65°C minimum and includes AEC-Q101 automotive qualification.

Packaging: All parts are supplied in DO-214AC (SMA) surface-mount package format with Tape & Reel or standard packaging options available.

Frequently Asked Questions (FAQ)

Q: What makes these parts electrically equivalent to the SMAJ36A-TP?

A: All substitute parts share identical voltage ratings (36V reverse standoff, 40V breakdown minimum, 58.1V clamping maximum), peak pulse current (6.9A), and power dissipation (400W). These parameters define the TVS diode's protection characteristics and are the primary criteria for functional substitution in circuit applications.

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

A: The SMAJ36A-TP operates from -55°C to 175°C (TA). Most substitutes operate within -55°C to 150°C or -50°C to 150°C ranges. The MDD SMAJ36A has a lower maximum of 150°C. For applications requiring the full -55°C to 175°C range, the SMAJ36A-TP should be retained. For standard industrial applications within -55°C to 150°C, all substitutes are suitable.

Q: Can I use the Littelfuse SZ1SMA36AT3G in non-automotive applications?

A: Yes. The SZ1SMA36AT3G is AEC-Q101 qualified for automotive use but is fully functional in general-purpose applications. Its automotive qualification does not restrict use in other industries. It offers extended low-temperature operation (-65°C minimum) compared to other substitutes.

Q: Are all these parts available in Tape & Reel packaging?

A: The SMAJ36A-TP, SMAJ36A-13-F, SMAJ36A-E3/61, SMAJ36A-M3/61, and SZ1SMA36AT3G are all available in Tape & Reel (TR) packaging. The MDD SMAJ36A packaging format is not specified in the provided data.

Q: Do all substitutes meet RoHS3 compliance?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original SMAJ36A-TP specification.

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

A: Both Vishay parts (SMAJ36A-E3/61 and SMAJ36A-M3/61) are TransZorb® series TVS diodes with identical electrical specifications and operating temperature ranges (-55°C to 150°C). The designation suffix indicates different manufacturing or packaging variants. Both are functionally equivalent for circuit protection applications.

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