SMBJ24A-E3/5B Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SMBJ24A-E3/5B is an active-status Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This unidirectional zener diode operates in the 24V reverse standoff category and is designed for general-purpose transient voltage suppression in surface-mount applications. The device is packaged in DO-214AA (SMB) format and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and compliance certifications.

Key Parameters

Parameter	Value	Unit
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)
Package / Case	DO-214AA, SMB	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the SMBJ24A-E3/5B are qualified based on the following electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 24V
Voltage - Breakdown (Min): 26.7V minimum
Voltage - Clamping (Max) @ Ipp: 38.4V to 38.9V range
Current - Peak Pulse (10/1000µs): 15.4A to 16A range
Power - Peak Pulse: 600W
Package / Case: DO-214AA or SMB equivalent
Mounting Type: Surface Mount
Type: Zener, Unidirectional
RoHS Status: ROHS3 Compliant

All substitute parts maintain the same functional classification (Transient Voltage Suppressors), unidirectional channel configuration, and general-purpose application profile. Substitutes are sourced from qualified manufacturers including Vishay, Central Semiconductor Corp, MDD, Diodes Incorporated, Micro Commercial Co, and STMicroelectronics.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (Typ) [V]	Voltage - Breakdown (Min) [V]	Voltage - Clamping (Max) @ Ipp [V]	Current - Peak Pulse (10/1000µs) [A]	Power - Peak Pulse [W]	Operating Temperature [°C]	Package	RoHS Status
SMBJ24A-E3/5B	Vishay General Semiconductor - Diodes Division	24	26.7	38.9	15.4	600	-55 to 150	DO-214AA, SMB	ROHS3 Compliant
SMBJ24D-M3/I	Vishay General Semiconductor - Diodes Division	24	27.1	38.4	15.6	600	-55 to 150	DO-214AA, SMB	ROHS3 Compliant
1SMB24A TR13 PBFREE	Central Semiconductor Corp	24	26.7	38.9	15.4	600	-65 to 150	DO-214AA, SMB	ROHS3 Compliant
SMBJ24A	MDD	24	26.7	38.9	15.5	600	-50 to 150	DO-214AA, SMB	ROHS3 Compliant
SMBJ24A-13-F	Diodes Incorporated	24	26.7	38.9	15.4	600	-55 to 150	DO-214AA, SMB	ROHS3 Compliant
SMBJ24A-TP	Micro Commercial Co	24	26.7	38.9	15.4	600	-55 to 175	DO-214AA, SMB	ROHS3 Compliant
SMBJ24A-TR	STMicroelectronics	24	26.7	38.9	16	600	-55 to 150	DO-214AA, SMB	ROHS3 Compliant

Engineering Selection Recommendations

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

Inventory availability and lead time requirements
Specific operating temperature range needs (note: SMBJ24A-TP supports -55 to 175°C; 1SMB24A TR13 PBFREE supports -65 to 150°C)
Packaging format preference (Tape & Reel vs. Cut Tape & Digi-Reel)
Manufacturer qualification requirements within your supply chain
Peak pulse current tolerance (15.4A to 16A range is acceptable within the 24V class specification)

The SMBJ24D-M3/I variant exhibits slightly higher breakdown voltage (27.1V min) and lower clamping voltage (38.4V max), which may be preferred in applications requiring tighter voltage regulation within the 24V class.

Frequently Asked Questions (FAQ)

Q: Can SMBJ24A-E3/5B be directly replaced with SMBJ24A from MDD?

A: Yes. Both devices share identical reverse standoff voltage (24V), breakdown voltage (26.7V min), clamping voltage (38.9V max), and power rating (600W). The primary difference is operating temperature range (-55 to 150°C for SMBJ24A-E3/5B vs. -50 to 150°C for MDD SMBJ24A). Selection depends on your minimum operating temperature requirement.

Q: What is the difference between SMBJ24D-M3/I and SMBJ24A-E3/5B?

A: Both are Vishay products in DO-214AA SMB package with 24V reverse standoff. SMBJ24D-M3/I has slightly higher breakdown voltage (27.1V min vs. 26.7V min) and lower clamping voltage (38.4V max vs. 38.9V max). Peak pulse current is marginally higher (15.6A vs. 15.4A). These differences fall within the acceptable tolerance band for 24V TVS diode applications.

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

A: Most substitute parts are available in Tape & Reel (TR) or Cut Tape & Digi-Reel packaging. MDD SMBJ24A does not specify packaging format in the provided data. Confirm packaging availability with your supplier before design finalization.

Q: Does operating temperature range affect substitution eligibility?

A: Operating temperature range does not disqualify a part as a substitute, but it must meet or exceed your application's minimum and maximum temperature requirements. SMBJ24A-TP supports the widest range (-55 to 175°C), while MDD SMBJ24A has the narrowest (-50 to 150°C). Select based on your thermal environment.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity level, matching the original SMBJ24A-E3/5B specification.

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