SMBJ9.0A-E3/5B Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The SMBJ9.0A-E3/5B is an active-status Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This unidirectional zener TVS diode operates in the 9V reverse standoff category and is packaged in the DO-214AA (SMB) surface mount form factor. The device is designed for general-purpose transient voltage suppression applications with a 600W peak pulse power rating and 39A peak pulse current capability at 10/1000µs pulse duration.

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, lead time extensions, or when design flexibility across multiple qualified sources is required. All substitute parts listed maintain electrical and mechanical compatibility within the specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	9V	V
Voltage - Breakdown (Min)	10V	V
Voltage - Clamping (Max) @ Ipp	15.4V	V
Current - Peak Pulse (10/1000µs)	39A	A
Power - Peak Pulse	600W	W
Operating Temperature Range	-55°C to 150°C	°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 SMBJ9.0A-E3/5B is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 9V ±tolerance
Voltage - Clamping (Max) @ Ipp: 15.4V maximum
Current - Peak Pulse (10/1000µs): 39A minimum
Power - Peak Pulse: 600W minimum
Package / Case: DO-214AA or SMB equivalent
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C minimum
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitute Parts Identified:

Group 1 - Direct Electrical Equivalents (9V Standoff Category):

SMBJ9.0A (Taiwan Semiconductor Corporation)
SMBJ9.0A-13-F (Diodes Incorporated)
SMBJ9V0A (Taiwan Semiconductor Corporation)

These parts maintain identical reverse standoff voltage (9V), clamping voltage (15.4V), and equivalent peak pulse current specifications. All are packaged in DO-214AA/SMB surface mount configuration with ROHS3 compliance and MSL 1 rating.

Group 2 - Related Voltage Category Substitutes:

SM6T10A (STMicroelectronics) - 8.55V standoff, 18.6V clamp, 215A peak pulse (8/20µs)
SMBJ10A (MDD) - 10V standoff, 17V clamp, 35.3A peak pulse
SMBJ11A (Meritek) - 11V standoff, 18.2V clamp, 32.97A peak pulse

These parts operate in adjacent voltage categories and may be suitable for applications with modified voltage tolerance requirements.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package	RoHS Status	MSL
SMBJ9.0A-E3/5B	Vishay General Semiconductor	9V	10V	15.4V	39A	600W	-55°C to 150°C	DO-214AA (SMB)	ROHS3 Compliant	1
SMBJ9.0A	Taiwan Semiconductor Corporation	9V	10V	15.4V	40A	600W	-55°C to 150°C	DO-214AA (SMB)	ROHS3 Compliant	1
SMBJ9.0A-13-F	Diodes Incorporated	9V	10V	15.4V	39A	600W	-55°C to 150°C	DO-214AA (SMB)	ROHS3 Compliant	1
SMBJ9V0A	Taiwan Semiconductor Corporation	9V	10V	15.4V	39A	600W	-55°C to 150°C	DO-214AA (SMB)	ROHS3 Compliant	1
SM6T10A	STMicroelectronics	8.55V	9.5V	18.6V	215A (8/20µs)	600W	-55°C to 150°C	DO-214AA (SMB)	ROHS3 Compliant	1
SMBJ10A	MDD	10V	11V	17V	35.3A	600W	-50°C to 150°C	DO-214AA (SMB)	ROHS3 Compliant	1
SMBJ11A	Meritek	11V	12.2V	18.2V	32.97A	600W	-55°C to 150°C	DO-214AA (SMB)	ROHS3 Compliant	1

Engineering Selection Recommendations

Direct Substitution (Group 1):

SMBJ9.0A (Taiwan Semiconductor Corporation), SMBJ9.0A-13-F (Diodes Incorporated), and SMBJ9V0A (Taiwan Semiconductor Corporation) are direct electrical and mechanical equivalents to the SMBJ9.0A-E3/5B. All three maintain the 9V reverse standoff voltage, 15.4V clamping voltage, and 39A peak pulse current specification. All devices are ROHS3 compliant with MSL 1 rating and operate across the -55°C to 150°C temperature range. These parts are suitable for one-to-one replacement in existing designs without circuit modification.

Related Voltage Category Substitutes (Group 2):

SM6T10A, SMBJ10A, and SMBJ11A operate in adjacent voltage categories (8.55V, 10V, and 11V standoff respectively) and are suitable only when circuit design permits voltage tolerance adjustment. These parts maintain the DO-214AA/SMB package format, ROHS3 compliance, and MSL 1 rating. Selection from this group requires circuit-level validation to confirm compatibility with the modified clamping voltage and peak pulse current characteristics.

All substitute parts listed are active-status products with current manufacturing availability and full compliance with ROHS3 and REACH requirements.

Frequently Asked Questions (FAQ)

Q: Can SMBJ9.0A from Taiwan Semiconductor Corporation be used as a direct replacement for SMBJ9.0A-E3/5B?

A: Yes. Both parts maintain identical reverse standoff voltage (9V), clamping voltage (15.4V), and equivalent peak pulse current specifications (39A vs. 40A). Both are packaged in DO-214AA (SMB) surface mount configuration with ROHS3 compliance and MSL 1 rating. The Taiwan Semiconductor version offers slightly higher peak pulse current (40A) and is electrically compatible.

Q: What is the difference between SMBJ9.0A-13-F and SMBJ9V0A?

A: Both parts are direct electrical equivalents with 9V reverse standoff, 15.4V clamping voltage, and 39A peak pulse current. SMBJ9.0A-13-F is manufactured by Diodes Incorporated and supplied in Tape & Reel packaging. SMBJ9V0A is manufactured by Taiwan Semiconductor Corporation and also supplied in Tape & Reel packaging. The part number designation differs due to manufacturer-specific nomenclature conventions, but electrical specifications are equivalent.

Q: Can SM6T10A replace SMBJ9.0A-E3/5B in all applications?

A: SM6T10A operates at 8.55V reverse standoff with 18.6V clamping voltage, compared to the 9V standoff and 15.4V clamping of SMBJ9.0A-E3/5B. While both are packaged in DO-214AA (SMB) and rated for 600W peak pulse power, the voltage characteristics differ. SM6T10A is suitable only when circuit design permits operation at the lower standoff voltage and higher clamping voltage. Circuit-level validation is required before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed—SMBJ9.0A, SMBJ9.0A-13-F, SMBJ9V0A, SM6T10A, SMBJ10A, and SMBJ11A—are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the operating temperature range for each substitute part?

A: SMBJ9.0A-E3/5B, SMBJ9.0A, SMBJ9.0A-13-F, SMBJ9V0A, SM6T10A, and SMBJ11A all operate from -55°C to 150°C (TJ). SMBJ10A operates from -50°C to 150°C (TJ), providing a slightly narrower low-temperature range.

Q: Can SMBJ10A and SMBJ11A be used interchangeably with SMBJ9.0A-E3/5B?

A: SMBJ10A and SMBJ11A are not direct equivalents. SMBJ10A operates at 10V reverse standoff with 17V clamping voltage and 35.3A peak pulse current. SMBJ11A operates at 11V reverse standoff with 18.2V clamping voltage and 32.97A peak pulse current. Both differ from the 9V standoff and 15.4V clamping of SMBJ9.0A-E3/5B. These parts are suitable only when circuit design accommodates the modified voltage and current specifications.

Q: What packaging options are available for substitute parts?

A: All substitute parts are packaged in DO-214AA (SMB) surface mount configuration, maintaining mechanical compatibility with the original SMBJ9.0A-E3/5B. Packaging options include Tape & Reel (TR) and Cut Tape (CT) formats depending on the specific manufacturer and part number.

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