SMBJ75A-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ75A-M3/52 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 Active status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical characteristics, package compatibility, and operational parameters that define functional interchangeability within the SMBJ series.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	75	V
Voltage - Breakdown (Min)	83.3	V
Voltage - Clamping (Max) @ Ipp	121	V
Current - Peak Pulse (10/1000µs)	5	A
Power - Peak Pulse	600	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	DO-214AA, SMB	-
Type	Zener	-
Unidirectional Channels	1	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for the SMBJ75A-M3/52 are classified into two categories based on electrical parameter alignment:

Category 1: Direct Electrical Equivalents Parts that maintain identical or near-identical electrical specifications across all critical parameters: Voltage - Reverse Standoff (75V), Voltage - Breakdown (83.3V minimum), Voltage - Clamping (121V maximum), Current - Peak Pulse (5A nominal), and Power - Peak Pulse (600W). These parts are functionally interchangeable in applications where the exact voltage and current ratings are required.

Category 2: Voltage-Variant Alternatives Parts that operate within the same SMBJ series but with different reverse standoff voltages (64V or 70V). These alternatives are suitable for applications where the transient voltage suppression threshold can accommodate lower voltage ratings while maintaining the same package form factor and general-purpose application profile.

All substitute parts maintain DO-214AA (SMB) package compatibility, surface mount mounting type, Zener diode type classification, single unidirectional channel configuration, ROHS3 compliance, and MSL 1 rating.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	RoHS Status
SMBJ75A-M3/52	Vishay General Semiconductor - Diodes Division	75V	83.3V	121V	5A	600W	-55 to 150°C (TJ)	DO-214AA, SMB	ROHS3 Compliant
SMBJ75A-E3/52	Vishay General Semiconductor - Diodes Division	75V	83.3V	121V	5A	600W	-55 to 150°C (TJ)	DO-214AA, SMB	ROHS3 Compliant
SMBJ75A	Meritek	75V	83.3V	121V	4.96A	600W	-55 to 150°C	DO-214AA (SMB)	ROHS3 Compliant
SMBJ70A	MDD	70V	77.8V	113V	5.3A	600W	-50 to 150°C (TJ)	DO-214AA, SMB	ROHS3 Compliant
SMBJ64A	Meritek	64V	71.1V	103V	5.83A	600W	-55 to 150°C	DO-214AA (SMB)	ROHS3 Compliant

Engineering Selection Recommendations

SMBJ75A-E3/52 (Vishay General Semiconductor - Diodes Division) is the manufacturer-recommended direct substitute. This part maintains identical electrical specifications to the SMBJ75A-M3/52 across all critical parameters and carries Active product status with ROHS3 compliance and MSL 1 rating. Selection of this part ensures no design modification is required.

SMBJ75A (Meritek) provides direct electrical equivalence with a peak pulse current specification of 4.96A, which falls within the operational tolerance of the 5A nominal rating. This part maintains Active status, ROHS3 compliance, and MSL 1 rating. The DO-214AA (SMB) package ensures mechanical compatibility.

SMBJ70A (MDD) and SMBJ64A (Meritek) are voltage-variant alternatives suitable for applications where lower transient voltage suppression thresholds are acceptable. SMBJ70A operates at 70V reverse standoff with 113V clamping voltage. SMBJ64A operates at 64V reverse standoff with 103V clamping voltage. Both maintain 600W peak pulse power, Active product status, ROHS3 compliance, and MSL 1 rating. These alternatives are appropriate only when circuit design permits operation at reduced voltage ratings.

All substitute parts are certified ROHS3 compliant, REACH unaffected, and carry ECCN EAR99 classification.

Frequently Asked Questions (FAQ)

Q: Can SMBJ75A-E3/52 be used as a direct replacement for SMBJ75A-M3/52? A: Yes. SMBJ75A-E3/52 is the manufacturer-recommended equivalent with identical electrical specifications, package form factor, and compliance certifications. No circuit modification is required.

Q: What is the difference between SMBJ75A-M3/52 and SMBJ75A (Meritek)? A: Both parts maintain 75V reverse standoff voltage, 83.3V minimum breakdown voltage, and 121V maximum clamping voltage. The Meritek SMBJ75A specifies 4.96A peak pulse current compared to 5A for the Vishay part. This 0.04A variance is within acceptable tolerance for general-purpose TVS applications. Both use DO-214AA (SMB) packaging.

Q: When should SMBJ70A or SMBJ64A be selected instead of SMBJ75A-M3/52? A: SMBJ70A and SMBJ64A are voltage-variant alternatives with lower reverse standoff voltages (70V and 64V respectively) and correspondingly lower clamping voltages (113V and 103V). These parts are suitable only when the circuit design permits operation at reduced transient voltage suppression thresholds. Direct substitution is not recommended without circuit analysis.

Q: Are all substitute parts compatible with the DO-214AA (SMB) package footprint? A: Yes. All listed substitute parts use DO-214AA (SMB) surface mount packaging, ensuring mechanical and footprint compatibility with the original SMBJ75A-M3/52 design.

Q: Do all substitute parts meet the same compliance requirements? A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, carry MSL 1 (Unlimited) moisture sensitivity rating, and share ECCN EAR99 classification with the original part.

Q: What is the operating temperature range for substitute parts? A: SMBJ75A-M3/52, SMBJ75A-E3/52, and SMBJ75A (Meritek) operate from -55°C to 150°C. SMBJ70A (MDD) operates from -50°C to 150°C. SMBJ64A (Meritek) operates from -55°C to 150°C. Verify temperature range compatibility with your application requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message