SMBJ24CA-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ24CA-M3/52 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and provides transient overvoltage protection for general-purpose applications. The part is currently active in production with 1650 units in stock. Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when sourcing from multiple manufacturers is needed for supply chain resilience.

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°C to 150°C	TJ
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ24CA-M3/52 is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): 24V
Voltage - Breakdown (Min): 26.7V minimum
Voltage - Clamping (Max) @ Ipp: 38.9V maximum
Current - Peak Pulse (10/1000µs): 15.4A minimum
Power - Peak Pulse: 600W
Package / Case: DO-214AA or SMB equivalent
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C minimum
RoHS Status: ROHS3 Compliant

Parts are grouped as direct substitutes when all electrical parameters match within specification limits and the package format is compatible. Manufacturer-recommended alternatives are identified where the original part is discontinued or when supply constraints exist. Upgrade options are listed where inventory availability is significantly higher while maintaining electrical equivalence.

Parameter Comparison

Part Number	Manufacturer	Voltage Standoff (V)	Voltage Breakdown Min (V)	Voltage Clamp Max (V)	Peak Pulse Current (A)	Power Peak Pulse (W)	Temp Range (°C)	Package	Status
SMBJ24CA-M3/52	Vishay	24	26.7	38.9	15.4	600	-55 to 150	DO-214AA	Active
SMBJ24CAHE3/52	Vishay	24	26.7	38.9	15.4	600	-55 to 150	DO-214AA	Discontinued at DiGi Electronics
SMBJ24CD-M3/H	Vishay	24	27.1	38.4	15.6	600	-55 to 150	DO-214AA	Active
SMBJ24CA-E3/52	Vishay	24	26.7	38.9	15.4	600	-55 to 150	DO-214AA	Active
1SMB24CA TR13 PBFREE	Central Semiconductor	24	26.7	38.9	15.4	600	-65 to 150	DO-214AA	Active
SMBJ24CA-13-F	Diodes Incorporated	24	26.7	38.9	15.4	600	-55 to 150	DO-214AA	Active
SMBJ24CA-TP	Micro Commercial Co	24	26.7	38.9	15.4	600	-55 to 175	DO-214AA	Active
SMBJ24CA	MDD	24	26.7	38.9	15.5	600	-50 to 150	DO-214AA	Active
SZ1SMB24CAT3G	onsemi	24	26.7	38.9	15.4	600	-65 to 150	DO-214AA	Active

Engineering Selection Recommendations

Direct Substitutes (Electrically Equivalent)

SMBJ24CA-E3/52 (Vishay) is the manufacturer-recommended direct substitute. This part maintains identical electrical specifications and is actively produced. SMBJ24CA-13-F (Diodes Incorporated) and SMBJ24CA-TP (Micro Commercial Co) are functionally equivalent alternatives with full parameter alignment and active production status.

Extended Temperature Range Option

1SMB24CA TR13 PBFREE (Central Semiconductor) and SZ1SMB24CAT3G (onsemi) both extend the lower operating temperature to -65°C, providing enhanced performance in cold environments while maintaining all other electrical parameters.

High-Temperature Capability

SMBJ24CA-TP (Micro Commercial Co) supports operation to 175°C, exceeding the standard 150°C upper limit and offering thermal margin for demanding applications.

High-Volume Availability

SMBJ24CA (MDD) provides the highest inventory level (210,110 units) with electrically equivalent specifications and active production status, suitable for high-volume procurement requirements.

Automotive-Qualified Options

SMBJ24CAHE3/52 (Vishay) and SZ1SMB24CAT3G (onsemi) carry AEC-Q101 automotive qualification, meeting automotive reliability standards where required.

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage practices.

Frequently Asked Questions (FAQ)

Q: Can SMBJ24CD-M3/H be used as a direct replacement for SMBJ24CA-M3/52?

A: SMBJ24CD-M3/H is electrically similar but not identical. The breakdown voltage is 27.1V (versus 26.7V) and clamping voltage is 38.4V (versus 38.9V). Peak pulse current is 15.6A (versus 15.4A). These variations fall within the same product family but represent a different electrical grade. Use only if the application tolerates the specified parameter differences.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel packaging?

A: Tape & Reel (TR) provides continuous reel packaging for automated assembly lines. Cut Tape (CT) & Digi-Reel offers smaller quantity packaging suitable for lower-volume production or prototyping. Both formats use the same DO-214AA component; packaging choice depends on production volume and assembly equipment compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) rating, ensuring compatibility with standard manufacturing processes and environmental regulations.

Q: Which substitute offers the widest operating temperature range?

A: SMBJ24CA-TP (Micro Commercial Co) supports -55°C to 175°C, providing the highest upper temperature limit. For extended lower temperature operation, 1SMB24CA TR13 PBFREE and SZ1SMB24CAT3G both operate to -65°C.

Q: Can I use automotive-qualified parts in non-automotive applications?

A: Yes. Automotive-qualified parts (SMBJ24CAHE3/52 and SZ1SMB24CAT3G) meet higher reliability standards and can be used in any application. Automotive qualification does not restrict use to automotive applications.

Q: What inventory levels should I consider for procurement?

A: SMBJ24CA (MDD) offers 210,110 units in stock, providing maximum availability for high-volume orders. SMBJ24CA-TP (Micro Commercial Co) provides 90,100 units. For standard requirements, SMBJ24CA-13-F (Diodes Incorporated) offers 24,200 units with active production status.

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