SMBJ7.0CA-13 Equivalent & Substitute Parts

Part Overview

The SMBJ7.0CA-13 is a Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose transient protection applications. This bidirectional Zener diode features a 7V reverse standoff voltage with 12V maximum clamping voltage and 50A peak pulse current capability in a surface-mount SMB (DO-214AA) package. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	SMBJ7.0CA-13
Manufacturer	Diodes Incorporated
Category	Transient Voltage Suppressors (TVS)
Type	Zener, Bidirectional
Voltage - Reverse Standoff (Typ)	7V
Voltage - Breakdown (Min)	7.78V
Voltage - Clamping (Max) @ Ipp	12V
Current - Peak Pulse (10/1000µs)	50A
Power - Peak Pulse	600W
Package / Case	DO-214AA, SMB
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SMBJ7.0CA-13 is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

Voltage - Reverse Standoff (Typ): 7V
Voltage - Clamping (Max) @ Ipp: 12V (±tolerance acceptable)
Current - Peak Pulse (10/1000µs): 50A (±tolerance acceptable)
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Bidirectional Channels: 1

Substitute Categories:

Category A - Direct Electrical & Packaging Equivalents (Preferred): Parts with identical or tightly matched electrical specifications and SMB packaging. These include SMBJ7.0CA-13-F (Diodes Incorporated, active status, RoHS3 compliant), SMBJ7.0CA-TP (Micro Commercial Co, active status), and SMBJ7V0CA (Taiwan Semiconductor Corporation, active status).

Category B - Manufacturer Alternatives (Active Status): Parts from alternative manufacturers (MDD, Vishay) with matching core electrical parameters and SMB packaging. These include SMBJ7.0CA (MDD) and SMBJ7.0CA-E3/52 (Vishay TransZorb®).

Category C - Minor Parameter Variance (Functional Equivalents): Parts with slight variations in clamping voltage or peak pulse current within acceptable engineering tolerance. SMBJ7.0CD-M3/H and SMBJ7.0CD-M3/I (Vishay TransZorb®) feature 11.8V clamping and 50.8A peak pulse, representing minor deviations suitable for applications with tolerance margins.

Category D - Non-Equivalent (Excluded): SMBJ70CA-TP is excluded due to fundamentally different electrical specifications (70V standoff, 113V clamping, 5.3A peak pulse), making it unsuitable for 7V protection circuits.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package	Product Status	RoHS Status
SMBJ7.0CA-13	Diodes Incorporated	7V	12V	50A	600W	-55°C ~ 150°C	DO-214AA, SMB	Discontinued	RoHS non-compliant
SMBJ7.0CA-13-F	Diodes Incorporated	7V	12V	50A	600W	-55°C ~ 150°C	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ7.0CA-TP	Micro Commercial Co	7V	12V	50A	600W	-55°C ~ 175°C	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ7V0CA	Taiwan Semiconductor Corporation	7V	12V	50A	600W	-55°C ~ 150°C	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ7.0CA	MDD	7V	12V	50A	600W	-50°C ~ 150°C	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ7.0CA-E3/52	Vishay General Semiconductor - Diodes Division	7V	12V	50A	600W	-55°C ~ 150°C	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ7.0CD-M3/H	Vishay General Semiconductor - Diodes Division	7V	11.8V	50.8A	600W	-55°C ~ 150°C	DO-214AA, SMB	Active	RoHS3 Compliant
SMBJ7.0CD-M3/I	Vishay General Semiconductor - Diodes Division	7V	11.8V	50.8A	600W	-55°C ~ 150°C	DO-214AA, SMB	Active	RoHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

SMBJ7.0CA-13-F (Diodes Incorporated) is the direct replacement, offering identical electrical specifications with active product status and RoHS3 compliance. This part maintains the original manufacturer lineage and is available in high volume (9200 pcs).

SMBJ7.0CA-TP (Micro Commercial Co) provides equivalent electrical performance with extended operating temperature range (-55°C ~ 175°C) and RoHS3 compliance. This part is suitable for applications requiring higher temperature margins.

SMBJ7V0CA (Taiwan Semiconductor Corporation) delivers matching electrical specifications with RoHS3 compliance and the highest inventory availability (27018 pcs), supporting supply chain continuity.

Secondary Substitutes (Alternative Manufacturers):

SMBJ7.0CA-E3/52 (Vishay TransZorb®) and SMBJ7.0CA (MDD) maintain full electrical equivalence with active status and RoHS3 compliance. These parts are suitable for applications where manufacturer diversification is required.

Functional Equivalents (Minor Parameter Variance):

SMBJ7.0CD-M3/H and SMBJ7.0CD-M3/I (Vishay TransZorb®) feature 11.8V clamping voltage and 50.8A peak pulse current, representing 1.7% and 1.6% deviations respectively from the original specifications. These parts are suitable only for applications with documented tolerance margins accommodating the reduced clamping voltage.

Compliance Consideration:

The original SMBJ7.0CA-13 is RoHS non-compliant. All recommended substitutes are RoHS3 compliant, supporting regulatory requirements for new production.

Frequently Asked Questions (FAQ)

Q: Can SMBJ7.0CA-13-F be used as a direct replacement for SMBJ7.0CA-13?

A: Yes. SMBJ7.0CA-13-F is electrically and mechanically identical to SMBJ7.0CA-13, with the primary difference being active product status and RoHS3 compliance. The "-F" suffix indicates Tape & Reel packaging versus the original part's unspecified packaging format.

Q: What is the difference between SMBJ7.0CA-TP and SMBJ7V0CA?

A: Both parts meet the electrical specifications of the original SMBJ7.0CA-13. SMBJ7.0CA-TP (Micro Commercial Co) offers an extended operating temperature range of -55°C ~ 175°C, while SMBJ7V0CA (Taiwan Semiconductor Corporation) operates within -55°C ~ 150°C. Selection depends on thermal environment requirements.

Q: Are the Vishay SMBJ7.0CD-M3/H and SMBJ7.0CD-M3/I parts suitable substitutes?

A: These Vishay TransZorb® parts feature 11.8V clamping voltage and 50.8A peak pulse current, representing minor deviations from the original 12V and 50A specifications. They are functionally equivalent only for applications with documented tolerance margins. Confirm circuit design margins before substitution.

Q: Why is SMBJ70CA-TP listed in the original part's substitutes but not recommended here?

A: SMBJ70CA-TP has fundamentally different electrical specifications (70V standoff, 113V clamping, 5.3A peak pulse) and is not suitable for 7V protection circuits. This part is excluded from the substitute list.

Q: What packaging formats are available for substitute parts?

A: Substitute parts are available in Tape & Reel (TR), Cut Tape (CT), and Cut Tape & Digi-Reel® formats. All maintain the DO-214AA, SMB surface-mount package. Packaging selection depends on assembly process requirements and volume considerations.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts are RoHS3 compliant, providing regulatory compliance for new production. The original SMBJ7.0CA-13 is RoHS non-compliant.

Q: What inventory levels are available for substitute parts?

A: SMBJ7V0CA offers the highest availability (27018 pcs), followed by SMBJ7.0CA-13-F (9200 pcs), SMBJ70CA-TP (9893 pcs), SMBJ7.0CA-TP (6100 pcs), and SMBJ7.0CA (6390 pcs). Inventory levels support various production volumes and supply chain strategies.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message