SMB10J28A-M3/52 Equivalent & Substitute Parts

Part Overview

The SMB10J28A-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 protection applications. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching electrical characteristics: 28V reverse standoff voltage, 31.1V minimum breakdown voltage, 45.4V maximum clamping voltage, and compatible DO-214AA (SMB) surface mount packaging. Substitutes must maintain functional equivalence within the specified parameter tolerances to ensure circuit protection performance.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	28	V
Voltage - Breakdown (Min)	31.1	V
Voltage - Clamping (Max) @ Ipp	45.4	V
Current - Peak Pulse (10/1000µs)	22	A
Power - Peak Pulse	1000	W
Operating Temperature Range	-55 to 150	°C
Package / Case	DO-214AA, SMB	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the SMB10J28A-M3/52 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - Reverse Standoff: 28V (exact match required)
Voltage - Breakdown (Min): 31.1V (exact match required)
Voltage - Clamping (Max) @ Ipp: 45.4V (exact match required)
Package / Case: DO-214AA, SMB (exact match required)
Mounting Type: Surface Mount (exact match required)
Unidirectional Channels: 1 (exact match required)

Allowable Variation Parameters:

Current - Peak Pulse (10/1000µs): 13.2A to 22A (substitutes may have lower peak pulse current ratings while maintaining voltage protection characteristics)
Power - Peak Pulse: 600W to 1000W (substitutes may have lower power dissipation ratings)
Operating Temperature Range: -50°C to -65°C minimum; 150°C to 175°C maximum (substitutes may have extended or equivalent ranges)

All identified substitutes maintain the core voltage protection specifications and surface mount package compatibility required for direct circuit board replacement.

Parameter Comparison

Parameter	SMB10J28A-M3/52 (Vishay)	SMBJ28A (MDD)	SMBJ28A-13-F (Diodes Inc.)	SMBJ28A-TP (MCC)	SZ1SMB28AT3G (Littelfuse)
Manufacturer	Vishay General Semiconductor	MDD	Diodes Incorporated	Micro Commercial Co	Littelfuse Inc.
Voltage - Reverse Standoff (Typ)	28V	28V	28V	28V	28V
Voltage - Breakdown (Min)	31.1V	31.1V	31.1V	31.1V	31.1V
Voltage - Clamping (Max) @ Ipp	45.4V	45.4V	45.4V	45.4V	45.4V
Current - Peak Pulse (10/1000µs)	22A	13.3A	13.2A	13.2A	13.2A
Power - Peak Pulse	1000W	600W	600W	600W	600W
Operating Temperature Range	-55 to 150°C	-50 to 150°C	-55 to 150°C	-55 to 175°C	-65 to 150°C
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts maintain active production status and full RoHS3 compliance, confirming their suitability for new designs and ongoing production applications.

SMBJ28A (MDD): Direct electrical equivalent with matching voltage specifications. Suitable for general-purpose applications where the 13.3A peak pulse rating is adequate. High inventory availability (86,300 pcs) supports supply chain continuity.

SMBJ28A-13-F (Diodes Incorporated): Functionally equivalent with 13.2A peak pulse rating. Offered in Cut Tape and Digi-Reel packaging options. Operating temperature range matches the original part (-55 to 150°C). Moderate inventory availability (20,100 pcs).

SMBJ28A-TP (Micro Commercial Co): Functionally equivalent with 13.2A peak pulse rating and extended upper operating temperature to 175°C. Tape & Reel packaging matches the original part format. Suitable for applications requiring elevated temperature performance. Inventory availability of 30,400 pcs.

SZ1SMB28AT3G (Littelfuse Inc.): Functionally equivalent with 13.2A peak pulse rating and extended lower operating temperature to -65°C. Carries AEC-Q101 automotive qualification and Littelfuse grade designation. Highest inventory availability (143,959 pcs). Suitable for automotive and extended temperature range applications.

The SMB10J28A-M3/52 original part offers the highest peak pulse current rating (22A) and power dissipation (1000W). Substitutes with 13.2A to 13.3A ratings are appropriate for applications where transient energy levels remain within the 600W power envelope.

Frequently Asked Questions (FAQ)

Q: Can SMBJ28A-13-F replace SMB10J28A-M3/52 in my circuit?

A: Yes, SMBJ28A-13-F is electrically equivalent for voltage protection specifications (28V standoff, 31.1V breakdown, 45.4V clamping). Both use DO-214AA SMB surface mount packaging. The substitute has a lower peak pulse current rating (13.2A vs. 22A) and power dissipation (600W vs. 1000W). Substitution is valid if your circuit's transient energy does not exceed 600W peak pulse power.

Q: What is the difference between the original SMB10J28A-M3/52 and SZ1SMB28AT3G?

A: Both parts match the critical voltage specifications (28V standoff, 31.1V breakdown, 45.4V clamping) and use identical DO-214AA SMB packaging. The SZ1SMB28AT3G has a lower peak pulse rating (13.2A vs. 22A) but offers extended lower temperature operation (-65°C vs. -55°C) and carries AEC-Q101 automotive qualification. Select SZ1SMB28AT3G for automotive applications or environments requiring -65°C minimum temperature performance.

Q: Are all substitute parts available in Tape & Reel packaging?

A: SMBJ28A-TP and SZ1SMB28AT3G are specified in Tape & Reel (TR) packaging, matching the original part format. SMBJ28A-13-F is available in Cut Tape (CT) and Digi-Reel packaging. SMBJ28A (MDD) packaging is not specified in the provided data. Confirm packaging format with your supplier before procurement.

Q: Can I use a substitute with lower peak pulse current rating?

A: Yes, if your application's transient pulse energy remains within the substitute's power rating. All identified substitutes maintain the same voltage protection characteristics (28V standoff, 45.4V clamping). The lower current and power ratings (13.2A, 600W) are acceptable for applications generating transients below these thresholds. Verify your circuit's actual transient energy profile before substitution.

Q: Which substitute has the widest operating temperature range?

A: SMBJ28A-TP (Micro Commercial Co) offers the highest maximum temperature at 175°C. SZ1SMB28AT3G (Littelfuse) offers the lowest minimum temperature at -65°C. Select based on your specific application temperature requirements.

Q: Are all substitutes RoHS3 compliant?

A: Yes, all identified substitute parts carry ROHS3 Compliant status, matching the original SMB10J28A-M3/52. All parts also have MSL 1 (Unlimited) moisture sensitivity rating and REACH Unaffected status.

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