SMBJ16-E3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ16-E3/52 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and is designed for general-purpose transient voltage suppression applications. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	SMBJ16-E3/52
Manufacturer	Vishay General Semiconductor - Diodes Division
Category	Transient Voltage Suppressors (TVS)
Package / Case	DO-214AA, SMB
Type	Zener
Unidirectional Channels	1
Voltage - Reverse Standoff (Typ)	16V
Voltage - Breakdown (Min)	17.8V
Voltage - Clamping (Max) @ Ipp	28.8V
Current - Peak Pulse (10/1000µs)	20.8A
Power - Peak Pulse	600W
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the SMBJ16-E3/52 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

Voltage - Reverse Standoff (Typ): 16V
Voltage - Breakdown (Min): 17.8V
Unidirectional Channels: 1
Type: Zener
Power - Peak Pulse: 600W

Mechanical Compatibility Criteria:

Package / Case: DO-214AA, SMB (or equivalent surface mount package)
Mounting Type: Surface Mount
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Compliance Criteria:

RoHS Status: ROHS3 Compliant
ECCN: EAR99
HTSUS: 8541.10.0080

Substitute parts are grouped into two categories based on clamping voltage performance:

Group A - Matched Clamping Voltage (28.8V): Parts with identical voltage clamping characteristics to the original SMBJ16-E3/52, maintaining the same peak pulse current of 20.8A.

Group B - Alternative Clamping Voltage (26V): Parts with reduced clamping voltage of 26V but increased peak pulse current of 23.1A, suitable for applications where lower clamping voltage is acceptable or beneficial.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Package / Case	Operating Temperature	Product Status	RoHS Status
SMBJ16-E3/52	Vishay General Semiconductor - Diodes Division	16V	17.8V	28.8V	20.8A	DO-214AA, SMB	-55°C ~ 150°C	Obsolete	ROHS3 Compliant
SMBJ16A-E3/52	Vishay General Semiconductor - Diodes Division	16V	17.8V	26V	23.1A	DO-214AA, SMB	-55°C ~ 150°C	Active	ROHS3 Compliant
SMBJ16E3/TR13	Microchip Technology	16V	17.8V	28.8V	20.8A	DO-214AA, SMB	-65°C ~ 150°C	Active	ROHS3 Compliant
SMBJ16A	EVVO Semi	16V	17.8V	26V	23.1A	DO-214AC, SMA	-65°C ~ 150°C	Active	ROHS3 Compliant
SMBJ16A-13	Diodes Incorporated	16V	17.8V	26V	23.1A	DO-214AA, SMB	-55°C ~ 150°C	Discontinued at DiGi Electronics	RoHS non-compliant
SMBJ16A-13-F	Diodes Incorporated	16V	17.8V	26V	23.1A	DO-214AA, SMB	-55°C ~ 150°C	Active	ROHS3 Compliant
SMBJ16A-HR	Littelfuse Inc.	16V	17.8V	26V	23.1A	DO-214AA, SMB	-65°C ~ 150°C	Active	ROHS3 Compliant
SMBJ16A-HRA	Littelfuse Inc.	16V	17.8V	26V	23.1A	DO-214AA, SMB	-65°C ~ 150°C	Active	ROHS3 Compliant
SMBJ16A-TP	Micro Commercial Co	16V	17.8V	26V	23.1A	DO-214AA, SMB	-55°C ~ 175°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement: SMBJ16E3/TR13 (Microchip Technology) is the preferred direct substitute. It maintains identical electrical specifications (28.8V clamping, 20.8A peak pulse current) and package configuration (DO-214AA, SMB) as the original SMBJ16-E3/52. The part is currently active and ROHS3 compliant. Extended operating temperature range (-65°C to 150°C) provides additional thermal margin.

Secondary Recommendation - Vishay Alternative: SMBJ16A-E3/52 (Vishay General Semiconductor - Diodes Division) is an active alternative from the original manufacturer. While clamping voltage is reduced to 26V with increased peak pulse current (23.1A), it maintains the same package and operating temperature range as the original part. This option ensures continuity with the original manufacturer's product line.

Alternative Options - Active Inventory: SMBJ16A-13-F (Diodes Incorporated), SMBJ16A-HR (Littelfuse Inc.), SMBJ16A-HRA (Littelfuse Inc.), and SMBJ16A-TP (Micro Commercial Co) are all active alternatives with 26V clamping voltage and 23.1A peak pulse current. All are ROHS3 compliant and available in DO-214AA, SMB packages. Selection among these options depends on packaging format requirements (tape & reel availability) and supply chain preferences.

Parts to Avoid: SMBJ16A-13 (Diodes Incorporated) is discontinued at DiGi Electronics and is RoHS non-compliant. SMBJ16A (EVVO Semi) uses DO-214AC, SMA package, which differs from the original DO-214AA, SMB package and may require PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can SMBJ16A-E3/52 be used as a direct replacement for SMBJ16-E3/52? A: SMBJ16A-E3/52 is electrically compatible but with different clamping characteristics. The original part clamps at 28.8V with 20.8A peak pulse current, while SMBJ16A-E3/52 clamps at 26V with 23.1A peak pulse current. Both maintain 16V reverse standoff voltage and are housed in identical DO-214AA, SMB packages. Substitution is valid if the application circuit tolerates the lower clamping voltage.

Q: What is the difference between DO-214AA and DO-214AC packages? A: DO-214AA and DO-214AC are both surface mount packages for two-terminal diodes, but they have different physical dimensions and PCB footprints. DO-214AA (SMB) and DO-214AC (SMA) are not interchangeable without PCB layout modifications. The original SMBJ16-E3/52 uses DO-214AA, SMB package. Ensure substitute parts use the same package designation.

Q: Are all substitute parts ROHS3 compliant? A: Most substitute parts listed are ROHS3 compliant. SMBJ16A-13 (Diodes Incorporated) is RoHS non-compliant and should not be used in applications requiring RoHS compliance. All other alternatives meet ROHS3 compliance requirements.

Q: What is the significance of the "-E3/52" suffix in part numbers? A: The "-E3/52" suffix indicates the specific packaging format and tape configuration used by Vishay. Different suffixes (such as "-TR", "-13-F", "-HR", "-HRA", "-TP") represent variations in packaging, tape format, or manufacturer-specific designations. These suffixes do not affect electrical performance but may impact procurement and assembly processes.

Q: Can SMBJ16A-TP be used in high-temperature applications? A: SMBJ16A-TP (Micro Commercial Co) has an extended operating temperature range of -55°C to 175°C, compared to -55°C to 150°C for the original SMBJ16-E3/52. This makes it suitable for applications requiring higher temperature operation. However, verify that the reduced clamping voltage (26V versus 28.8V) is acceptable for your circuit design.

Q: What packaging formats are available for substitute parts? A: Substitute parts are available in Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) formats. Packaging format selection depends on assembly equipment and procurement requirements. All substitute parts maintain the same surface mount DO-214AA, SMB package footprint as the original, except SMBJ16A (EVVO Semi), which uses DO-214AC, SMA package.

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