SMBJ24A-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ24A-M3/52 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 24V reverse standoff category and is designed for general-purpose transient protection applications. The part is active in production status with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across manufacturing environments.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	SMBJ24A-M3/52	—
Manufacturer	Vishay General Semiconductor - Diodes Division	—
Category	Transient Voltage Suppressors (TVS)	—
Package / Case	DO-214AA, SMB	—
Voltage - Reverse Standoff (Typ)	24	V
Voltage - Breakdown (Min)	26.7	V
Voltage - Clamping (Max) @ Ipp	38.9	V
Current - Peak Pulse (10/1000µs)	15.4	A
Power - Peak Pulse	600	W
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitution of the SMBJ24A-M3/52 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 24V
Voltage - Clamping (Max) @ Ipp: 38.9V (±0.5V tolerance acceptable)
Current - Peak Pulse (10/1000µs): 15.4A (±0.2A tolerance acceptable)
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Unidirectional Channels: 1
Type: Zener

Secondary Compatibility Parameters:

Operating Temperature Range: -55°C minimum to 150°C minimum
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
Applications: General Purpose

Parts are grouped as direct equivalents when all primary criteria match. Parts with voltage standoff values of 20V or 22V are classified as near-equivalent alternatives suitable only for applications with reduced voltage protection requirements.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Clamping (V)	Current - Peak Pulse (A)	Operating Temp (°C)	Packaging	Product Status
SMBJ24A-M3/52	Vishay	24	38.9	15.4	-55 to 150	Tape & Reel	Active
SMBJ24D-M3/H	Vishay	24	38.4	15.6	-55 to 150	Tape & Reel	Active
SMBJ24A-E3/52	Vishay	24	38.9	15.4	-55 to 150	Cut Tape	Active
1SMB24A TR13 PBFREE	Central Semiconductor Corp	24	38.9	15.4	-65 to 150	Tape & Reel	Active
SMBJ24A	MDD	24	38.9	15.5	-50 to 150	Bulk	Active
SMBJ24A-13-F	Diodes Incorporated	24	38.9	15.4	-55 to 150	Tape & Reel	Active
SMBJ24A-TP	Micro Commercial Co	24	38.9	15.4	-55 to 175	Tape & Reel	Active
SMBJ20A	Good-Ark Semiconductor	20	32.4	18.5	-55 to 150	Tape & Reel	Active
SMBJ22A	Meritek	22	35.5	16.9	-55 to 150	Bulk	Active

Engineering Selection Recommendations

Direct Equivalents (24V Standoff Category):

The following parts are direct functional equivalents of the SMBJ24A-M3/52 and may be selected interchangeably for applications requiring 24V transient voltage suppression:

SMBJ24A-E3/52 (Vishay, Cut Tape packaging)
1SMB24A TR13 PBFREE (Central Semiconductor Corp)
SMBJ24A-13-F (Diodes Incorporated)
SMBJ24A-TP (Micro Commercial Co)
SMBJ24A (MDD)

All direct equivalents maintain ROHS3 compliance, active production status, and MSL 1 rating. Selection among these parts should be based on packaging format availability (Tape & Reel vs. Cut Tape vs. Bulk), inventory levels, and supply chain requirements.

Near-Equivalent Alternatives (Reduced Voltage Protection):

The SMBJ20A (20V standoff) and SMBJ22A (22V standoff) are classified as near-equivalent alternatives. These parts operate at lower voltage thresholds and are suitable only for applications where the circuit protection requirement is 20V or 22V respectively, not 24V. Use of these parts in 24V-rated circuits will result in premature device activation and is not recommended.

Packaging Considerations:

The SMBJ24D-M3/H variant exhibits a clamping voltage of 38.4V, which falls within acceptable tolerance of the 38.9V specification. This part is suitable for applications with relaxed clamping voltage requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute SMBJ24A-E3/52 for SMBJ24A-M3/52?

A: Yes. Both parts are manufactured by Vishay with identical electrical specifications (24V standoff, 38.9V clamping, 15.4A peak pulse). The difference is packaging format: SMBJ24A-M3/52 is supplied in Tape & Reel, while SMBJ24A-E3/52 is supplied in Cut Tape. Both are ROHS3 compliant and active in production.

Q: What is the difference between SMBJ24A-M3/52 and SMBJ24D-M3/H?

A: Both are Vishay products in Tape & Reel packaging with 24V standoff voltage. The SMBJ24D-M3/H has a clamping voltage of 38.4V versus 38.9V for the SMBJ24A-M3/52, and peak pulse current of 15.6A versus 15.4A. These differences are within normal manufacturing tolerance and do not affect functional equivalence for general-purpose transient protection.

Q: Can I use SMBJ20A as a substitute for SMBJ24A-M3/52?

A: No. The SMBJ20A operates at 20V reverse standoff with 32.4V clamping voltage, compared to 24V standoff and 38.9V clamping for the SMBJ24A-M3/52. This part is suitable only for 20V protection circuits and will not provide adequate protection in 24V applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, consistent with the original SMBJ24A-M3/52 specification.

Q: Does operating temperature range affect substitution?

A: Operating temperature range is a secondary compatibility parameter. The SMBJ24A-TP extends to 175°C maximum junction temperature, while most alternatives are rated to 150°C. For applications operating within -55°C to 150°C, all listed parts are interchangeable. Applications requiring operation above 150°C should specify SMBJ24A-TP.

Q: What packaging formats are available for 24V SMBJ equivalents?

A: Direct equivalents are available in Tape & Reel (SMBJ24A-M3/52, SMBJ24A-E3/52, 1SMB24A TR13 PBFREE, SMBJ24A-13-F, SMBJ24A-TP) and Bulk packaging (SMBJ24A by MDD). Cut Tape format is available as SMBJ24A-E3/52. Selection depends on assembly process requirements and procurement volume.

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