SMBJ15A-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ15A-M3/52 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 15V reverse standoff category and is designed for general-purpose transient protection applications. The part is Active status and widely available in inventory (1045 pcs). Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and packaging format requirements across manufacturing environments.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	15V
Voltage - Breakdown (Min)	16.7V
Voltage - Clamping (Max) @ Ipp	24.4V
Current - Peak Pulse (10/1000µs)	24.6A
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

Substitution eligibility for the SMBJ15A-M3/52 is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): 15V
Voltage - Clamping (Max) @ Ipp: 24.4V maximum
Current - Peak Pulse (10/1000µs): 24.6A minimum
Power - Peak Pulse: 600W minimum
Package / Case: DO-214AA or SMB compatible
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Substitute parts must maintain electrical equivalence within these parameters. Packaging format variations (Tape & Reel vs. Cut Tape) do not affect functional substitution. Manufacturer differences are acceptable provided all electrical and compliance specifications are met.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	RoHS Status
SMBJ15A-M3/52	Vishay General Semiconductor	15V	24.4V	24.6A	600W	-55°C ~ 150°C	DO-214AA, SMB	ROHS3 Compliant
SMBJ15D-M3/H	Vishay General Semiconductor	15V	24V	25A	600W	-55°C ~ 150°C	DO-214AA, SMB	ROHS3 Compliant
SMBJ15A-E3/52	Vishay General Semiconductor	15V	24.4V	24.6A	600W	-55°C ~ 150°C	DO-214AA, SMB	ROHS3 Compliant
SMBJ15A	EVVO Semi	15V	24.4V	24.6A	600W	-65°C ~ 150°C	DO-214AC, SMA	ROHS3 Compliant
SACB15	Littelfuse Inc.	15V	23.6V	20A	500W	-55°C ~ 150°C	DO-214AA, SMB	ROHS3 Compliant
SZ1SMB15AT3G	Littelfuse Inc.	15V	24.4V	24A	600W	-65°C ~ 150°C	DO-214AA, SMB	ROHS3 Compliant

Engineering Selection Recommendations

Full Electrical Equivalents (Preferred):

SMBJ15A-E3/52 (Vishay General Semiconductor): Identical electrical specifications to the main part. Packaging format differs (Cut Tape & Digi-Reel vs. Tape & Reel). Recommended for direct substitution with highest inventory availability (29,400 pcs).
SMBJ15D-M3/H (Vishay General Semiconductor): Maintains 15V standoff voltage and 600W peak pulse power. Clamping voltage and peak pulse current are within acceptable tolerance (24V vs. 24.4V; 25A vs. 24.6A). Same manufacturer and package format.

Cross-Manufacturer Equivalents:

SZ1SMB15AT3G (Littelfuse Inc.): Meets all critical electrical parameters. Includes AEC-Q101 automotive qualification and extended temperature range (-65°C to 150°C). Suitable for applications requiring automotive-grade components.
SMBJ15A (EVVO Semi): Electrical specifications match the main part. Package format is DO-214AC (SMA) instead of DO-214AA (SMB). Extended temperature range (-65°C to 150°C). Verify PCB footprint compatibility before selection.

Partial Equivalents (Limited Substitution):

SACB15 (Littelfuse Inc.): Maintains 15V standoff voltage and compatible package format. Peak pulse current (20A) and power rating (500W) are reduced compared to the main part. Suitable only for applications with lower transient current requirements.

All substitute parts maintain ROHS3 compliance and MSL 1 rating. Product status is Active for all listed alternatives.

Frequently Asked Questions (FAQ)

Q: Can SMBJ15A-E3/52 replace SMBJ15A-M3/52 directly? A: Yes. Both parts share identical electrical specifications (15V standoff, 24.4V clamping, 24.6A peak pulse, 600W power). The difference is packaging format: SMBJ15A-E3/52 is supplied in Cut Tape & Digi-Reel format while SMBJ15A-M3/52 is Tape & Reel. Functional performance is equivalent.

Q: What is the difference between SMBJ15D-M3/H and SMBJ15A-M3/52? A: Both maintain the same 15V reverse standoff voltage and 600W peak pulse power rating. SMBJ15D-M3/H has slightly lower clamping voltage (24V vs. 24.4V) and marginally higher peak pulse current (25A vs. 24.6A). These variations fall within acceptable tolerance for general-purpose transient protection.

Q: Is SMBJ15A from EVVO Semi compatible with the original part? A: Electrical specifications are identical (15V standoff, 24.4V clamping, 24.6A peak pulse, 600W power). However, the package format differs: EVVO's SMBJ15A uses DO-214AC (SMA) instead of DO-214AA (SMB). Verify PCB footprint compatibility before substitution.

Q: Can SACB15 be used as a substitute? A: SACB15 maintains the 15V standoff voltage and compatible SMB package format. However, peak pulse current is reduced to 20A (vs. 24.6A) and power rating is 500W (vs. 600W). Use only in applications with lower transient current requirements.

Q: What is the advantage of SZ1SMB15AT3G? A: SZ1SMB15AT3G meets all electrical specifications of the main part and includes AEC-Q101 automotive qualification. Extended operating temperature range (-65°C to 150°C) supports automotive and industrial applications. Suitable for designs requiring automotive-grade components.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original SMBJ15A-M3/52.

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