SMBJ7.0AHE3/5B Equivalent & Substitute Parts

Part Overview

The SMBJ7.0AHE3/5B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications in the DO-214AA (SMB) package and provides transient overvoltage protection with a 7V reverse standoff voltage and 12V maximum clamping voltage at peak pulse current. 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	SMBJ7.0AHE3/5B
Manufacturer	Vishay General Semiconductor - Diodes Division
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Unidirectional Channels	1
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
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ7.0AHE3/5B is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

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 or SMB
Mounting Type: Surface Mount
Unidirectional Channels: 1
Type: Zener

All identified substitute parts maintain identical electrical specifications across voltage ratings, peak pulse current, and power dissipation. All substitutes are packaged in DO-214AA (SMB) surface mount configuration. Operating temperature ranges may vary within acceptable limits for the application class. All substitutes maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Clamping (Max)	Current - Peak Pulse	Power - Peak Pulse	Package	Product Status	Operating Temperature
SMBJ7.0AHE3/5B	Vishay	7V	12V	50A	600W	DO-214AA (SMBJ)	Discontinued	-55°C ~ 150°C
SMBJ7.0A-E3/52	Vishay	7V	12V	50A	600W	DO-214AA (SMBJ)	Active	-55°C ~ 150°C
SMBJ7.0A-E3/5B	Vishay	7V	12V	50A	600W	DO-214AA (SMBJ)	Active	-55°C ~ 150°C
SMBJ7.0A-M3/52	Vishay	7V	12V	50A	600W	DO-214AA (SMBJ)	Active	-55°C ~ 150°C
SMBJ7.0A-M3/5B	Vishay	7V	12V	50A	600W	DO-214AA (SMBJ)	Active	-55°C ~ 150°C
ATV06B7V0J-HF	Comchip Technology	7V	12V	50A	600W	DO-214AA (SMB)	Active	-55°C ~ 150°C
SMBJ7.0A	MDD	7V	12V	50A	600W	DO-214AA, SMB	Active	-50°C ~ 150°C
SMBJ7.0A-13-F	Diodes Incorporated	7V	12V	50A	600W	DO-214AA, SMB	Active	-55°C ~ 150°C
SMBJ7.0A-HR	Littelfuse Inc.	7V	12V	50A	600W	DO-214AA (SMBJ)	Active	-65°C ~ 150°C
SMBJ7.0A-HRA	Littelfuse Inc.	7V	12V	50A	600W	DO-214AA (SMBJ)	Active	-65°C ~ 150°C

Engineering Selection Recommendations

All listed substitute parts are electrically and mechanically equivalent to the SMBJ7.0AHE3/5B. Selection among active alternatives should be based on:

Product Status: All substitutes maintain Active product status, ensuring ongoing availability and manufacturing support.

Compliance & Certification: All substitutes are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The original part carries AEC-Q101 automotive qualification; equivalent automotive-qualified alternatives include ATV06B7V0J-HF (Comchip Technology, AEC-Q101) and Littelfuse SMBJ7.0A-HR / SMBJ7.0A-HRA variants.

Packaging Variants: Vishay offers multiple packaging configurations (E3/52, E3/5B, M3/52, M3/5B) with identical electrical performance. Selection depends on tape reel specifications and supply chain requirements.

Temperature Range: Littelfuse variants (SMBJ7.0A-HR, SMBJ7.0A-HRA) provide extended low-temperature operation to -65°C compared to the standard -55°C minimum. MDD variant operates to -50°C minimum.

Inventory Availability: Substitute parts demonstrate active stock levels ranging from 740 to 18,100 units, supporting immediate procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can SMBJ7.0A-E3/52 directly replace SMBJ7.0AHE3/5B?

A: Yes. Both parts are manufactured by Vishay with identical electrical specifications (7V standoff, 12V clamping, 50A peak pulse, 600W power dissipation) and DO-214AA (SMBJ) packaging. The primary difference is packaging format (Tape & Reel vs. bulk) and product status (Active vs. Discontinued).

Q: Are cross-manufacturer substitutes acceptable?

A: Yes, provided electrical and mechanical parameters match exactly. Comchip Technology ATV06B7V0J-HF, Diodes Incorporated SMBJ7.0A-13-F, MDD SMBJ7.0A, and Littelfuse SMBJ7.0A-HR / SMBJ7.0A-HRA all meet the critical parameter requirements. For automotive applications requiring AEC-Q101 qualification, select ATV06B7V0J-HF or Littelfuse variants.

Q: What is the difference between SMBJ7.0A-E3/52 and SMBJ7.0A-M3/52?

A: Both are Vishay SMBJ7.0A variants with identical electrical specifications and DO-214AA (SMBJ) packaging. The designations E3 and M3 refer to internal manufacturing codes and tape reel specifications. Electrical performance and compatibility are equivalent.

Q: Does operating temperature range affect substitution eligibility?

A: Operating temperature range does not disqualify substitution if the substitute's range encompasses the application requirements. The original part operates -55°C to 150°C. Littelfuse variants extend to -65°C (enhanced low-temperature capability). MDD variant operates to -50°C minimum. Select based on application temperature requirements.

Q: Is RoHS3 compliance maintained across all substitutes?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message