SMBJ15CA-13 Equivalent & Substitute Parts

Part Overview

The SMBJ15CA-13 is a Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose transient voltage protection in surface-mount applications. This part features a 15V reverse standoff voltage with a 24.4V maximum clamping voltage and 24A peak pulse current capability in the DO-214AA (SMB) package. The SMBJ15CA-13 is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from multiple manufacturers with identical or superior electrical specifications and active product status, ensuring design continuity and supply chain flexibility.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	15	V
Voltage - Breakdown (Min)	16.7	V
Voltage - Clamping (Max) @ Ipp	24.4	V
Current - Peak Pulse (10/1000µs)	24	A
Power - Peak Pulse	600	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Type	Zener	—
Bidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitute parts for the SMBJ15CA-13 are qualified based on the following electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 15V
Voltage - Breakdown (Min): 16.7V
Voltage - Clamping (Max) @ Ipp: 24.4V
Current - Peak Pulse (10/1000µs): 24A or greater
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Type: Zener
Bidirectional Channels: 1

All substitute parts listed maintain these core electrical specifications within the allowed tolerance range. Variations in peak pulse current (24A to 25.1A) and operating temperature ranges are within acceptable substitution criteria for this component category.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature (TJ)	Product Status	RoHS Status
SMBJ15CA-13	Diodes Incorporated	15V	16.7V	24.4V	24A	600W	-55 to 150°C	Discontinued	RoHS non-compliant
SMBJ15CA-13-F	Diodes Incorporated	15V	16.7V	24.4V	24A	600W	-55 to 150°C	Active	ROHS3 Compliant
SMBJ15CA-TP	Micro Commercial Co	15V	16.7V	24.4V	24A	600W	-55 to 175°C	Active	ROHS3 Compliant
SMBJ15CA	EVVO Semi	15V	16.7V	24.4V	24.6A	600W	-65 to 150°C	Active	ROHS3 Compliant
SMBJ15CA-TR	STMicroelectronics	15V	16.7V	24.4V	25.1A	600W	-55 to 150°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

SMBJ15CA-13-F (Diodes Incorporated) is the direct equivalent with identical electrical specifications and packaging. This part is active and ROHS3 compliant, providing a direct replacement with improved regulatory compliance compared to the discontinued original.

SMBJ15CA-TP (Micro Commercial Co) maintains all core electrical parameters and offers an extended operating temperature range to 175°C, providing additional thermal margin for high-temperature applications. ROHS3 compliant and active status ensure supply availability.

SMBJ15CA (EVVO Semi) provides slightly enhanced peak pulse current (24.6A versus 24A) and extended lower temperature rating (-65°C), offering improved performance headroom. ROHS3 compliant with high inventory availability.

SMBJ15CA-TR (STMicroelectronics) delivers the highest peak pulse current specification (25.1A) among all substitutes, providing maximum transient protection margin. ROHS3 compliant and active status with established supply chain presence.

All substitute parts are qualified for direct replacement based on electrical equivalence, package compatibility, and regulatory compliance. Selection should prioritize active product status and ROHS3 compliance for new designs.

Frequently Asked Questions (FAQ)

Q: Can SMBJ15CA-13-F be used as a direct replacement for SMBJ15CA-13?

A: Yes. SMBJ15CA-13-F is electrically and mechanically identical to SMBJ15CA-13, with the primary difference being active product status and ROHS3 compliance. Both use the DO-214AA (SMB) package and share identical voltage and current specifications.

Q: What is the difference between the substitute parts in terms of peak pulse current?

A: Peak pulse current varies slightly across manufacturers: SMBJ15CA-13 and SMBJ15CA-TP specify 24A, SMBJ15CA specifies 24.6A, and SMBJ15CA-TR specifies 25.1A. All values meet or exceed the 24A minimum requirement, with higher values providing additional transient protection margin.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (SMBJ15CA-13-F, SMBJ15CA-TP, SMBJ15CA, SMBJ15CA-TR) are ROHS3 compliant. The original SMBJ15CA-13 is RoHS non-compliant and discontinued.

Q: Do the substitute parts use the same package as the original?

A: Yes. All substitute parts use the DO-214AA (SMB) surface-mount package, ensuring mechanical and footprint compatibility with existing PCB designs.

Q: Which substitute part offers the widest operating temperature range?

A: SMBJ15CA-TP offers the widest operating temperature range (-55 to 175°C), providing 25°C additional upper temperature margin compared to most alternatives. SMBJ15CA offers the lowest temperature rating (-65°C).

Q: Are there packaging format differences among the substitutes?

A: Packaging formats vary: SMBJ15CA-13-F and SMBJ15CA-TR are supplied in Tape & Reel (TR) format, SMBJ15CA-TP is Tape & Reel (TR), and SMBJ15CA is available in Cut Tape (CT) & Digi-Reel® format. All are surface-mount compatible with identical DO-214AA (SMB) case dimensions.

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