SMBJ28A-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ28A-M3/52 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 28V reverse standoff category and is designed for general-purpose transient voltage protection applications. The part is Active status and widely used in circuit protection where controlled clamping of voltage transients is required. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the DO-214AA (SMB) package family.

Substiute Parts

SMBJ28A-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 754SMBJ28A-M3/52 Datasheet

Current PartRFQ

SMBJ28D-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 8224SMBJ28D-M3/H Datasheet

DirectRFQ

SMBJ28A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 51302SMBJ28A-E3/52 Datasheet

MFR RecommendedRFQ

SMBJ28A

MDDIn Stock: 86400SMBJ28A Datasheet

DirectRFQ

SMBJ28A

MDDIn Stock: 86400SMBJ28A Datasheet

DirectRFQ

SMBJ28A-13-F

Diodes IncorporatedIn Stock: 20113SMBJ28A-13-F Datasheet

DirectRFQ

SMBJ28A-TP

Micro Commercial CoIn Stock: 30424SMBJ28A-TP Datasheet

DirectRFQ

SMBJ28A-TR

STMicroelectronicsIn Stock: 12726SMBJ28A-TR Datasheet

MFR RecommendedRFQ

SZ1SMB28AT3G

Littelfuse Inc.In Stock: 144063SZ1SMB28AT3G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ28A-M3/52 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 28V
• Voltage - Breakdown (Min): 31.1V minimum
• Voltage - Clamping (Max) @ Ipp: 45.4V ±0.1V tolerance
• Current - Peak Pulse (10/1000µs): 13.2A ±0.2A tolerance
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Operating Temperature: -55°C minimum to 150°C maximum

All identified substitute parts maintain these electrical specifications within acceptable engineering tolerances and are housed in the same DO-214AA (SMB) surface mount package. Substitutes are grouped by manufacturer and packaging configuration while preserving functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance. Selection among equivalents should be based on:

Packaging Configuration: The SMBJ28A-M3/52 is supplied in Tape & Reel (TR) format. Direct equivalents in TR packaging include SMBJ28D-M3/H, SMBJ28A-TP, and SZ1SMB28AT3G. Alternative packaging formats (Cut Tape & Digi-Reel®) are available from Vishay (SMBJ28A-E3/52), Diodes Incorporated (SMBJ28A-13-F), and STMicroelectronics (SMBJ28A-TR).

Temperature Range: The SMBJ28A-TP from Micro Commercial Co extends the upper operating temperature to 175°C, while SZ1SMB28AT3G from Littelfuse extends the lower temperature to -65°C. The MDD variant operates to -50°C minimum.

Electrical Tolerance: SMBJ28D-M3/H exhibits slightly higher clamping voltage (44.7V) and peak pulse current (13.4A). SMBJ28A-TR from STMicroelectronics provides higher peak pulse current (13.8A). These variations remain within acceptable substitution parameters for general-purpose transient protection.

Compliance & Certification: SZ1SMB28AT3G carries AEC-Q101 automotive qualification and is suitable for automotive-grade applications. All other parts are suitable for general industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can SMBJ28D-M3/H replace SMBJ28A-M3/52 directly?

A: Yes. Both parts share identical reverse standoff voltage (28V), breakdown voltage minimum (31.1V+), power rating (600W), package (DO-214AA, SMB), and operating temperature range (-55°C ~ 150°C). The clamping voltage difference (44.7V vs 45.4V) and peak pulse current variation (13.4A vs 13.2A) are within acceptable engineering tolerances for transient voltage suppression applications.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® packaging provides components on cut tape segments, typically for lower-volume or mixed-component orders. Both formats contain identical components in DO-214AA (SMB) packages.

Q: Is SZ1SMB28AT3G suitable for automotive applications?

A: Yes. SZ1SMB28AT3G carries AEC-Q101 automotive qualification and operates across -65°C to 150°C, making it suitable for automotive-grade transient voltage protection. All other listed substitutes are qualified for general industrial and commercial use.

Q: Can I use SMBJ28A-TP in high-temperature environments?

A: Yes. SMBJ28A-TP from Micro Commercial Co operates to 175°C junction temperature, extending 25°C above the standard -55°C ~ 150°C range. This makes it suitable for applications requiring elevated temperature performance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of SMBJ28A-M3/52.

Q: What is the significance of the peak pulse current variation among substitutes?

A: Peak pulse current variations (13.2A to 13.8A) reflect manufacturer-specific design tolerances. All values remain within the 600W power dissipation envelope and are functionally equivalent for general-purpose transient suppression. Higher peak pulse current (SMBJ28A-TR at 13.8A) provides additional margin in high-energy transient events.