SMBJ16A-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBJ16A-E3/5B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 16V reverse standoff category with a 26V maximum clamping voltage and 23.1A peak pulse current rating. The device is classified as Active product status and is designed for general-purpose transient voltage suppression applications. Equivalent and substitute parts are identified based on matching electrical performance parameters and compatible packaging specifications to ensure functional interchangeability in circuit designs.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	16V
Voltage - Breakdown (Min)	17.8V
Voltage - Clamping (Max) @ Ipp	26V
Current - Peak Pulse (10/1000µs)	23.1A
Power - Peak Pulse	600W
Operating Temperature Range	-55°C ~ 150°C (TJ)
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SMBJ16A-E3/5B are classified into two categories based on electrical and mechanical compatibility:

Category 1: Direct Electrical Equivalents (Same Voltage & Current Ratings) These parts maintain identical or near-identical electrical specifications: 16V reverse standoff, 17.8V minimum breakdown voltage, 26V maximum clamping voltage, and 23.1A peak pulse current. Substitutes in this category include SMBJ16A-E3/52, 1SMB16A TR13 PBFREE, SMBJ16A-13-F, and SMBJ16A-TP. These differ only in packaging format (Tape & Reel vs. Cut Tape) or manufacturer source, maintaining full functional equivalence.

Category 2: Manufacturer-Recommended Alternatives (Variant Voltage Ratings) These parts operate within the same product family but with different voltage specifications. SMBJ16D-M3/I maintains 16V standoff with 25.6V clamping (0.4V lower than primary part). SMBJ15A-TR operates at 15V standoff with 24.4V clamping. SM6T18A operates at 15.3V standoff with 32.5V clamping but features significantly higher peak pulse current (123A at 8/20µs pulse). These alternatives are suitable only when circuit design permits the specified voltage variance.

Key Parameters Determining Substitution:

Voltage - Reverse Standoff (Typ): 16V ± tolerance
Voltage - Clamping (Max) @ Ipp: 26V ± 0.4V acceptable range
Current - Peak Pulse: 23.1A minimum
Package / Case: DO-214AA, SMB compatible
Operating Temperature: -55°C ~ 150°C minimum range
RoHS3 Compliance and MSL 1 rating

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Clamping (Max)	Current - Peak Pulse	Package	Operating Temp Range	Inventory Status
SMBJ16A-E3/5B	Vishay	16V	26V	23.1A	DO-214AA, SMB	-55°C ~ 150°C	4500 Pcs
SMBJ16A-E3/52	Vishay	16V	26V	23.1A	DO-214AA, SMB	-55°C ~ 150°C	26417 Pcs
SMBJ16D-M3/I	Vishay	16V	25.6V	23.4A	DO-214AA, SMB	-55°C ~ 150°C	7129 Pcs
1SMB16A TR13 PBFREE	Central Semiconductor Corp	16V	26V	23.1A	DO-214AA, SMB	-65°C ~ 150°C	3405 Pcs
SMBJ16A-13-F	Diodes Incorporated	16V	26V	23.1A	DO-214AA, SMB	-55°C ~ 150°C	7799 Pcs
SMBJ16A-TP	Micro Commercial Co	16V	26V	23.1A	DO-214AA, SMB	-55°C ~ 175°C	2387 Pcs
SM6T18A	STMicroelectronics	15.3V	32.5V	123A (8/20µs)	DO-214AA, SMB	-55°C ~ 150°C	22700 Pcs
SMBJ15A-TR	STMicroelectronics	15V	24.4V	25.1A	DO-214AA, SMB	-55°C ~ 150°C	31200 Pcs
SMBJ16A	EVVO Semi	16V	26V	23.1A	DO-214AC, SMA	-65°C ~ 150°C	44100 Pcs

Engineering Selection Recommendations

Primary Substitutes (Full Compatibility): SMBJ16A-E3/52, 1SMB16A TR13 PBFREE, SMBJ16A-13-F, and SMBJ16A-TP are direct functional equivalents with identical electrical specifications and DO-214AA/SMB packaging. All maintain ROHS3 compliance and MSL 1 rating. Selection among these depends on packaging format availability (Tape & Reel vs. Cut Tape) and inventory requirements. SMBJ16A-TP offers extended operating temperature to 175°C, providing additional thermal margin in high-temperature applications.

Secondary Substitutes (Voltage Variant): SMBJ16D-M3/I (Vishay) and SMBJ15A-TR (STMicroelectronics) are suitable only when circuit design accommodates lower clamping voltages (25.6V and 24.4V respectively). SM6T18A operates at 15.3V standoff with significantly higher peak pulse current (123A) and clamping voltage (32.5V), suitable for applications requiring enhanced transient suppression capability but only when voltage specifications permit.

Package Consideration: SMBJ16A from EVVO Semi uses DO-214AC/SMA package instead of DO-214AA/SMB. This represents a different physical footprint and is not mechanically interchangeable without PCB redesign.

Compliance & Status: All listed substitutes maintain Active product status, ROHS3 compliance, and MSL 1 rating, ensuring regulatory and environmental compatibility with the primary part.

Frequently Asked Questions (FAQ)

Q: Can SMBJ16A-E3/52 be used as a direct replacement for SMBJ16A-E3/5B? A: Yes. Both parts are manufactured by Vishay with identical electrical specifications (16V standoff, 26V clamping, 23.1A peak pulse). The difference is packaging format: SMBJ16A-E3/5B is Tape & Reel (TR), while SMBJ16A-E3/52 is Cut Tape (CT) & Digi-Reel. Electrical performance is equivalent.

Q: What is the difference between DO-214AA and DO-214AC packages? A: DO-214AA (SMB) and DO-214AC (SMA) are different physical packages with different footprints. They are not mechanically interchangeable on the same PCB. SMBJ16A from EVVO Semi uses DO-214AC/SMA and requires PCB redesign if substituting for the DO-214AA/SMB primary part.

Q: Can SM6T18A replace SMBJ16A-E3/5B? A: SM6T18A is not a direct replacement. While both are TVS diodes in SMB package, SM6T18A operates at 15.3V standoff (vs. 16V) with 32.5V clamping (vs. 26V) and 123A peak pulse current (vs. 23.1A). Substitution is only valid if circuit design permits these voltage and current variations.

Q: Why would I choose SMBJ16A-TP over other equivalents? A: SMBJ16A-TP from Micro Commercial Co offers extended operating temperature range to 175°C (vs. 150°C standard). This provides additional thermal margin for applications operating in high-temperature environments while maintaining identical electrical specifications.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) rating, ensuring regulatory and environmental compatibility with the primary SMBJ16A-E3/5B part.

Q: What does "Reverse Standoff Voltage" mean in TVS diode selection? A: Reverse Standoff Voltage (16V for this part) is the maximum voltage the TVS diode can withstand in normal operation without conducting. When transient voltage exceeds the breakdown threshold, the diode conducts and clamps the voltage to the specified maximum clamping level (26V).

Q: Can I substitute parts with different peak pulse current ratings? A: Only if your circuit design requires lower transient energy suppression. SMBJ15A-TR (25.1A) and SM6T18A (123A) have different current ratings. Higher current capability (SM6T18A) provides better transient suppression but operates at different voltage levels. Lower current ratings may be insufficient for high-energy transients.

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