SMBJ9.0-E3/52 Transient Voltage Suppressor (TVS) Diode – Equivalent & Substitute Parts

Part Overview

The SMBJ9.0-E3/52 is a unidirectional Zener-type transient voltage suppressor manufactured by Vishay General Semiconductor - Diodes Division in the DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications with a 9V reverse standoff voltage and 16.9V maximum clamping voltage at peak pulse current.

The SMBJ9.0-E3/52 is classified as obsolete. Equivalent and substitute parts listed below provide active alternatives with comparable or enhanced electrical characteristics, ensuring design continuity and supply chain flexibility for new production and maintenance applications.

Key Parameters

Parameter	Value	Unit
Voltage – Reverse Standoff (Typ)	9	V
Voltage – Breakdown (Min)	10	V
Voltage – Clamping (Max) @ Ipp	16.9	V
Current – Peak Pulse (10/1000µs)	35.5	A
Power – Peak Pulse	600	W
Operating Temperature Range	–55 to 150	°C (TJ)
Package / Case	DO-214AA, SMB	–
Mounting Type	Surface Mount	–
RoHS Status	ROHS3 Compliant	–

Substitute Part Grouping Explanation

Substitution of the SMBJ9.0-E3/52 is determined by the following critical electrical and mechanical parameters:

Reverse Standoff Voltage (Typ): 9V – all substitutes maintain this specification
Breakdown Voltage (Min): 10V – all substitutes maintain this specification
Clamping Voltage (Max) @ Ipp: 16.9V or lower – substitutes with 15.4V or 16.9V are acceptable
Peak Pulse Current (10/1000µs): 35.5A or higher – substitutes with 35.3A, 39A, or 40A are acceptable
Peak Pulse Power: 600W – all substitutes maintain this specification
Package / Case: DO-214AA, SMB – all substitutes use identical or compatible surface mount packages
Operating Temperature Range: –55°C to 150°C or wider – all substitutes meet or exceed this range
RoHS Compliance: ROHS3 Compliant – all substitutes maintain compliance

Substitutes are grouped into two categories: direct equivalents (same clamping voltage and peak pulse current) and functional equivalents (lower clamping voltage with equal or higher peak pulse current, providing enhanced transient suppression performance).

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	Product Status
SMBJ9.0-E3/52	Vishay General Semiconductor	9V	10V	16.9V	35.5A	600W	–55 to 150°C	DO-214AA, SMB	Obsolete
SMBJ9.0A-E3/52	Vishay General Semiconductor	9V	10V	15.4V	39A	600W	–55 to 150°C	DO-214AA, SMB	Active
SMBJ9.0E3/TR13	Microchip Technology	9V	10V	16.9V	35.5A	600W	–65 to 150°C	DO-214AA, SMB	Active
SMBJ10A	MDD	10V	11V	17V	35.3A	600W	–50 to 150°C	DO-214AA, SMB	Active
SMBJ9.0A	Taiwan Semiconductor Corporation	9V	10V	15.4V	40A	600W	–55 to 150°C	DO-214AA, SMB	Active
SMBJ9.0A-13-F	Diodes Incorporated	9V	10V	15.4V	39A	600W	–55 to 150°C	DO-214AA, SMB	Active
SMBJ9.0AE3/TR13	Microchip Technology	9V	10V	15.4V	39A	600W	–65 to 150°C	DO-214AA, SMB	Active
SMBJ9V0A	Taiwan Semiconductor Corporation	9V	10V	15.4V	39A	600W	–55 to 150°C	DO-214AA, SMB	Active

Engineering Selection Recommendations

Direct Electrical Equivalent (Identical Clamping Voltage and Peak Pulse Current):

SMBJ9.0E3/TR13 (Microchip Technology) provides an exact electrical match to the SMBJ9.0-E3/52 with 16.9V clamping voltage and 35.5A peak pulse current. This part is active and ROHS3 compliant. The extended operating temperature range (–65°C to 150°C) provides additional thermal margin for demanding applications.

Functional Equivalents (Lower Clamping Voltage with Equal or Higher Peak Pulse Current):

SMBJ9.0A-E3/52 (Vishay General Semiconductor), SMBJ9.0A (Taiwan Semiconductor Corporation), SMBJ9.0A-13-F (Diodes Incorporated), SMBJ9.0AE3/TR13 (Microchip Technology), and SMBJ9V0A (Taiwan Semiconductor Corporation) all feature 15.4V clamping voltage with peak pulse currents of 39A to 40A. These parts are active and ROHS3 compliant. The reduced clamping voltage provides superior transient suppression performance while maintaining compatibility with the 9V reverse standoff specification.

Higher Voltage Alternative:

SMBJ10A (MDD) offers a 10V reverse standoff voltage with 17V clamping voltage and 35.3A peak pulse current. This part is suitable only for applications where a higher standoff voltage is acceptable and provides comparable transient suppression performance.

All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity, and general-purpose transient voltage suppression applications. Selection should be based on specific circuit requirements for clamping voltage, peak pulse current capacity, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can SMBJ9.0A-E3/52 directly replace SMBJ9.0-E3/52?

A: Yes. Both parts maintain the same 9V reverse standoff voltage and 10V minimum breakdown voltage. The SMBJ9.0A-E3/52 features a lower clamping voltage (15.4V vs. 16.9V) and higher peak pulse current (39A vs. 35.5A), providing enhanced transient suppression. The part is active and ROHS3 compliant.

Q: What is the difference between SMBJ9.0E3/TR13 and SMBJ9.0AE3/TR13?

A: Both are Microchip Technology parts in Tape & Reel packaging. SMBJ9.0E3/TR13 matches the original part's 16.9V clamping voltage and 35.5A peak pulse current. SMBJ9.0AE3/TR13 features 15.4V clamping voltage and 39A peak pulse current. Both support the extended –65°C to 150°C operating temperature range.

Q: Is SMBJ10A compatible with SMBJ9.0-E3/52?

A: SMBJ10A is not a direct substitute. It features a higher 10V reverse standoff voltage and 11V minimum breakdown voltage, making it unsuitable for circuits designed for 9V standoff protection. Use only if circuit design permits higher standoff voltage operation.

Q: Do all substitute parts use the same DO-214AA package?

A: Yes. All listed substitutes use the DO-214AA (SMB) surface mount package, ensuring mechanical and footprint compatibility with the original SMBJ9.0-E3/52 design.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, meeting environmental and regulatory requirements equivalent to the original part.

Q: Which substitute offers the best transient suppression performance?

A: SMBJ9.0A variants (SMBJ9.0A-E3/52, SMBJ9.0A, SMBJ9.0A-13-F, SMBJ9.0AE3/TR13, SMBJ9V0A) provide the lowest clamping voltage (15.4V) with peak pulse currents of 39A to 40A, delivering superior transient voltage clamping compared to the original 16.9V specification.

Q: What is the operating temperature range difference between manufacturers?

A: Vishay and Taiwan Semiconductor Corporation parts support –55°C to 150°C. Microchip Technology parts extend to –65°C to 150°C. MDD SMBJ10A supports –50°C to 150°C. Select based on application thermal requirements.

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