SMBJ11AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ11AE3/TR13 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Microchip Technology in the DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications, featuring an 11V reverse standoff voltage and 18.2V maximum clamping voltage at peak pulse current. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching electrical performance parameters, mechanical compatibility, and manufacturing specifications. Alternative sources provide identical or functionally equivalent performance within the specified operating ranges.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	11	V
Voltage - Breakdown (Min)	12.2	V
Voltage - Clamping (Max) @ Ipp	18.2	V
Current - Peak Pulse (10/1000µs)	33	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

Substitute parts for the SMBJ11AE3/TR13 are qualified based on the following critical parameters:

Electrical Equivalence Criteria:

Voltage - Reverse Standoff (Typ): 11V
Voltage - Breakdown (Min): 12.2V
Voltage - Clamping (Max) @ Ipp: 18.2V
Current - Peak Pulse (10/1000µs): 33A (or within 0.03A tolerance)
Power - Peak Pulse: 600W
Type: Zener, Unidirectional (1 channel)

Mechanical Compatibility Criteria:

Package / Case: DO-214AA or SMB equivalent
Mounting Type: Surface Mount
Packaging: Tape & Reel (TR)

Compliance Criteria:

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

All identified substitute parts meet these criteria. Variations in operating temperature range and manufacturer-specific series designations do not affect functional substitution within the specified electrical and mechanical parameters.

Parameter Comparison

Parameter	SMBJ11AE3/TR13 (Microchip)	SMBJ11A (Meritek)	SMBJ11A-E3/52 (Vishay)	SMBJ11A-TP (MCC)	SMBJ11A-13-F (Diodes Inc)
Voltage - Reverse Standoff (Typ)	11V	11V	11V	11V	11V
Voltage - Breakdown (Min)	12.2V	12.2V	12.2V	12.2V	12.2V
Voltage - Clamping (Max) @ Ipp	18.2V	18.2V	18.2V	18.2V	18.2V
Current - Peak Pulse (10/1000µs)	33A	32.97A	33A	33A	33A
Power - Peak Pulse	600W	600W	600W	600W	600W
Operating Temperature Range	-65 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 175°C	-55 to 150°C
Package / Case	DO-214AA, SMB	DO-214AA (SMB)	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Type	Zener	Zener	Zener	Zener	Zener
Unidirectional Channels	1	1	1	1	1
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts are functionally equivalent to the SMBJ11AE3/TR13 based on electrical and mechanical parameters. Selection among these alternatives is determined by availability, supply chain requirements, and application-specific constraints.

SMBJ11A (Meritek): Meets all electrical specifications with 32.97A peak pulse current, functionally equivalent within tolerance. Operating temperature range of -55 to 150°C is suitable for general-purpose applications. Active product status with full compliance certifications.

SMBJ11A-E3/52 (Vishay General Semiconductor - Diodes Division): Exact electrical match with 33A peak pulse current. Branded as TransZorb® series. Operating temperature range of -55 to 150°C. Active product status with full compliance certifications.

SMBJ11A-TP (Micro Commercial Co): Exact electrical match with 33A peak pulse current. Extended operating temperature range of -55 to 175°C provides additional thermal margin. Active product status with full compliance certifications.

SMBJ11A-13-F (Diodes Incorporated): Exact electrical match with 33A peak pulse current. Operating temperature range of -55 to 150°C. Highest inventory availability (104,200 pcs). Active product status with full compliance certifications.

All substitute parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating. Selection should be based on procurement lead times, cost structure, and inventory availability within the supply chain.

Frequently Asked Questions (FAQ)

Q: Can SMBJ11A (Meritek) be used as a direct replacement for SMBJ11AE3/TR13?

A: Yes. The SMBJ11A meets all critical electrical parameters: 11V reverse standoff voltage, 12.2V minimum breakdown voltage, 18.2V maximum clamping voltage, and 32.97A peak pulse current (within tolerance of the 33A specification). Both parts use identical DO-214AA (SMB) surface mount packaging and are RoHS3 compliant with MSL 1 rating.

Q: What is the difference between SMBJ11A-E3/52 and SMBJ11AE3/TR13?

A: Both parts are electrically identical with 11V standoff voltage, 18.2V clamping voltage, and 33A peak pulse current. The primary difference is the manufacturer: SMBJ11A-E3/52 is manufactured by Vishay General Semiconductor (TransZorb® series), while SMBJ11AE3/TR13 is manufactured by Microchip Technology. Both are surface mount DO-214AA packages with identical compliance certifications.

Q: Is SMBJ11A-TP suitable for high-temperature applications?

A: SMBJ11A-TP supports an operating temperature range of -55 to 175°C, which extends 25°C above the standard -55 to 150°C range of other substitutes. This part is suitable for applications requiring elevated temperature operation while maintaining identical electrical performance (11V standoff, 18.2V clamping, 33A peak pulse current).

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

A: Yes. All identified substitute parts are supplied in Tape & Reel (TR) packaging format, matching the original SMBJ11AE3/TR13 packaging specification for automated assembly processes.

Q: Do substitute parts have the same moisture sensitivity rating?

A: Yes. All substitute parts carry MSL 1 (Unlimited) moisture sensitivity level, identical to the SMBJ11AE3/TR13. This rating indicates no moisture-related storage restrictions and unlimited shelf life under standard conditions.

Q: Can SMBJ11A-13-F replace SMBJ11AE3/TR13 in existing designs?

A: Yes. SMBJ11A-13-F (Diodes Incorporated) is electrically and mechanically equivalent with 11V standoff voltage, 18.2V clamping voltage, 33A peak pulse current, and DO-214AA (SMB) surface mount package. Operating temperature range is -55 to 150°C. Full RoHS3 and REACH compliance is maintained.

Q: What is the peak pulse current tolerance between SMBJ11A and other substitutes?

A: SMBJ11A (Meritek) specifies 32.97A peak pulse current, while SMBJ11AE3/TR13, SMBJ11A-E3/52, SMBJ11A-TP, and SMBJ11A-13-F all specify 33A. The 0.03A difference (0.09% variance) is within acceptable tolerance for transient voltage suppression applications and does not affect functional equivalence.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts are RoHS3 compliant and REACH unaffected, matching the compliance status of the SMBJ11AE3/TR13. All parts are suitable for applications requiring environmental compliance certifications.

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