SMBJ20AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ20AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 20V reverse standoff voltage and provides 32.4V maximum clamping voltage at peak pulse current. The part is actively produced and ROHS3 compliant, with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the DO-214AA (SMB) package family. Substitution becomes necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits selection from multiple qualified manufacturers.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	20	V
Voltage - Breakdown (Min)	22.2	V
Voltage - Clamping (Max) @ Ipp	32.4	V
Current - Peak Pulse (10/1000µs)	18.5	A
Power - Peak Pulse	600	W
Operating Temperature Range	-65 to 150	°C (TJ)
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Type	Zener	—
Unidirectional Channels	1	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SMBJ20AE3/TR13 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - Reverse Standoff (Typ): 20V
Voltage - Breakdown (Min): 22.2V
Voltage - Clamping (Max) @ Ipp: 32.4V
Current - Peak Pulse (10/1000µs): 18.5A minimum
Power - Peak Pulse: 600W
Type: Zener, Unidirectional (1 channel)

Mechanical Equivalence Criteria:

Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount

Compliance Equivalence Criteria:

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

All substitute parts listed maintain identical electrical performance specifications and mechanical compatibility. Variations in operating temperature range and peak pulse current (within tolerance) do not disqualify substitution when the specified application requirements are met.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature (TJ)	Package / Case	RoHS Status	Product Status
SMBJ20AE3/TR13	Microchip Technology	20V	22.2V	32.4V	18.5A	600W	-65 to 150°C	DO-214AA, SMB	ROHS3 Compliant	Active
1SMB20A TR13 PBFREE	Central Semiconductor Corp	20V	22.2V	32.4V	18.5A	600W	-65 to 150°C	DO-214AA, SMB	ROHS3 Compliant	Active
SMBJ20A	Good-Ark Semiconductor	20V	22.2V	32.4V	18.5A	600W	-55 to 150°C	DO-214AA, SMB	ROHS3 Compliant	Active
SMBJ20A-13-F	Diodes Incorporated	20V	22.2V	32.4V	18.5A	600W	-55 to 150°C	DO-214AA, SMB	ROHS3 Compliant	Active
SMBJ20A-E3/52	Vishay General Semiconductor - Diodes Division	20V	22.2V	32.4V	18.5A	600W	-55 to 150°C	DO-214AA, SMB	ROHS3 Compliant	Active
SMBJ20A-TP	Micro Commercial Co	20V	22.2V	32.4V	18.5A	600W	-55 to 175°C	DO-214AA, SMB	ROHS3 Compliant	Active
SMBJ20A-TR	STMicroelectronics	20V	22.2V	32.4V	19.4A	600W	-55 to 150°C	DO-214AA, SMB	ROHS3 Compliant	Active

Engineering Selection Recommendations

All listed substitute parts are actively produced and ROHS3 compliant, meeting the same regulatory and environmental standards as the primary SMBJ20AE3/TR13 part. Selection among equivalent parts is based on the following factors:

Inventory Availability: The SMBJ20A from Good-Ark Semiconductor maintains the highest inventory level at 38,610 pieces, providing supply continuity for high-volume applications. The SMBJ20A-13-F from Diodes Incorporated offers 35,200 pieces in stock. The SMBJ20AE3/TR13 primary part has 1,101 pieces available.

Operating Temperature Range: The SMBJ20A-TP from Micro Commercial Co extends the upper operating temperature to 175°C, compared to the standard 150°C maximum of other variants. This extended range is applicable only when the application environment requires sustained operation above 150°C.

Peak Pulse Current: The SMBJ20A-TR from STMicroelectronics specifies 19.4A peak pulse current, exceeding the 18.5A baseline. This higher rating provides additional margin in transient suppression applications but does not alter substitution eligibility.

Packaging and Compliance: All parts are supplied in DO-214AA (SMB) surface-mount packages with identical mechanical footprints. All maintain MSL 1 (Unlimited) moisture sensitivity and REACH Unaffected status, ensuring compatibility with standard assembly and storage procedures.

Frequently Asked Questions (FAQ)

Q: Can SMBJ20A from Good-Ark Semiconductor be used as a direct replacement for SMBJ20AE3/TR13?

A: Yes. The SMBJ20A meets all critical electrical parameters: 20V reverse standoff voltage, 22.2V minimum breakdown voltage, 32.4V maximum clamping voltage, and 18.5A peak pulse current. Both parts are housed in DO-214AA (SMB) packages and are ROHS3 compliant with MSL 1 rating. The operating temperature range of -55 to 150°C is compatible with applications designed for the -65 to 150°C range of the primary part.

Q: What is the difference between SMBJ20A-E3/52 and SMBJ20AE3/TR13?

A: Both parts are electrically identical with matching voltage and current specifications. The primary difference is manufacturer: SMBJ20A-E3/52 is manufactured by Vishay General Semiconductor, while SMBJ20AE3/TR13 is manufactured by Microchip Technology. Both are ROHS3 compliant and operate across -55 to 150°C. The suffix designations (-E3/52 versus -TR13) indicate different packaging and tape configurations from their respective manufacturers.

Q: Is the SMBJ20A-TP suitable for high-temperature applications?

A: The SMBJ20A-TP from Micro Commercial Co operates across -55 to 175°C, extending 25°C above the standard 150°C maximum. This part is suitable for applications requiring sustained operation in elevated temperature environments. All other electrical and mechanical specifications remain equivalent to the primary part.

Q: Can I substitute SMBJ20A-TR from STMicroelectronics if my design specifies SMBJ20AE3/TR13?

A: Yes. The SMBJ20A-TR meets all substitution criteria with matching 20V reverse standoff, 22.2V breakdown, and 32.4V clamping voltages. The peak pulse current specification of 19.4A exceeds the 18.5A baseline, providing additional transient suppression margin. Both parts are ROHS3 compliant and housed in DO-214AA (SMB) packages.

Q: Are all substitute parts available in the same tape and reel packaging?

A: All listed substitute parts are supplied in Tape & Reel (TR) packaging suitable for automated assembly. The SMBJ20A from Good-Ark Semiconductor is also available in Cut Tape (CT) and Digi-Reel® formats. Packaging format selection depends on production volume and assembly equipment compatibility.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts are ROHS3 compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. These certifications are identical across all listed alternatives, ensuring compatibility with standard manufacturing and storage protocols.

Q: If the primary part SMBJ20AE3/TR13 becomes unavailable, which substitute offers the best supply continuity?

A: The SMBJ20A from Good-Ark Semiconductor maintains the highest inventory at 38,610 pieces, followed by SMBJ20A-13-F from Diodes Incorporated at 35,200 pieces. Both parts are electrically and mechanically equivalent to the primary part and provide reliable long-term supply availability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message