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

Part Overview

The SMBJ9.0C-E3/52 is a bidirectional Zener transient voltage suppressor (TVS) diode 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 SMBJ9.0C-E3/52 is classified as obsolete. Equivalent and substitute parts are available from multiple manufacturers with active product status, offering improved availability and supply chain continuity while maintaining electrical and mechanical compatibility within specified parameter ranges.

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	—
Type	Zener	—
Bidirectional Channels	1	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SMBJ9.0C-E3/52 are grouped based on electrical parameter compatibility within the following criteria:

Primary Substitution Criteria:

Reverse standoff voltage: 9V (typ)
Breakdown voltage minimum: 10V
Package / Case: DO-214AA or SMB (surface mount)
Mounting type: Surface mount
Type: Zener, bidirectional
Peak pulse power rating: 600W
RoHS3 compliance and MSL 1 rating

Acceptable Parameter Variations:

Clamping voltage (Max) @ Ipp: 15.4V to 16.9V
Peak pulse current (10/1000µs): 35.5A to 40A
Operating temperature range: -65°C to 175°C (encompasses the original -55°C to 150°C specification)

Parts meeting these criteria are electrically and mechanically interchangeable for the intended application. Substitute parts are sourced from Vishay, Microchip Technology, Taiwan Semiconductor Corporation, Diodes Incorporated, Littelfuse Inc., and Micro Commercial Co.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage – Clamping (Max) @ Ipp (V)	Current – Peak Pulse (A)	Operating Temperature (°C)	Product Status	Packaging
SMBJ9.0C-E3/52	Vishay General Semiconductor	16.9	35.5	-55 to 150	Obsolete	Bulk
SMBJ9.0CA-E3/52	Vishay General Semiconductor	15.4	39	-55 to 150	Active	Tape & Reel (TR)
SMBJ9.0CE3/TR13	Microchip Technology	16.9	35.5	-65 to 150	Active	Tape & Reel (TR)
SMBJ9.0CA	Taiwan Semiconductor Corporation	15.4	40	-55 to 150	Active	Bulk
SMBJ9.0CA-13-F	Diodes Incorporated	15.4	39	-55 to 150	Active	Tape & Reel (TR)
SMBJ9.0CA-HR	Littelfuse Inc.	15.4	39	-65 to 150	Active	Tape & Reel (TR)
SMBJ9.0CA-HRA	Littelfuse Inc.	15.4	39	-65 to 150	Active	Tape & Reel (TR)
SMBJ9.0CA-TP	Micro Commercial Co	15.4	39	-55 to 175	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Electrical Match: SMBJ9.0CE3/TR13 (Microchip Technology) provides an exact electrical match with 16.9V clamping voltage and 35.5A peak pulse current, identical to the original SMBJ9.0C-E3/52. This part is active and available in Tape & Reel packaging.

Primary Alternatives: SMBJ9.0CA-E3/52 (Vishay General Semiconductor) is the manufacturer's direct successor from the same product line. It maintains the same reverse standoff voltage and operating temperature range with marginally lower clamping voltage (15.4V vs. 16.9V) and higher peak pulse current (39A vs. 35.5A). This part is active with high inventory availability.

Extended Temperature Range Options: SMBJ9.0CA-HR and SMBJ9.0CA-HRA (Littelfuse Inc.) and SMBJ9.0CE3/TR13 (Microchip Technology) extend the operating temperature range to -65°C, providing enhanced performance in low-temperature environments while maintaining all other electrical specifications.

High-Temperature Capability: SMBJ9.0CA-TP (Micro Commercial Co) supports operating temperatures up to 175°C, exceeding the original specification and providing thermal margin for demanding applications.

All substitute parts are RoHS3 compliant with MSL 1 rating, matching the original part's environmental and regulatory status.

Frequently Asked Questions (FAQ)

Q: Can SMBJ9.0CA-E3/52 replace SMBJ9.0C-E3/52 directly? A: Yes. Both parts share the same 9V reverse standoff voltage, 10V minimum breakdown voltage, and 600W peak pulse power rating. The clamping voltage difference (15.4V vs. 16.9V) and peak pulse current difference (39A vs. 35.5A) fall within acceptable substitution parameters for general-purpose transient suppression applications.

Q: What is the difference between bulk and Tape & Reel packaging? A: Bulk packaging is suitable for manual assembly or small-volume applications. Tape & Reel packaging is designed for automated pick-and-place assembly on production lines. Electrical performance is identical; packaging choice depends on assembly process requirements.

Q: Does SMBJ9.0CE3/TR13 from Microchip Technology provide an exact replacement? A: Yes. SMBJ9.0CE3/TR13 matches the original part's clamping voltage (16.9V) and peak pulse current (35.5A) exactly. It extends the operating temperature range to -65°C and is available in Tape & Reel packaging with active product status.

Q: Are all substitute parts DO-214AA (SMB) package compatible? A: Yes. All listed substitute parts use the DO-214AA or SMB package designation, ensuring mechanical and footprint compatibility on printed circuit boards.

Q: Which substitute offers the widest operating temperature range? A: SMBJ9.0CA-TP (Micro Commercial Co) supports -55°C to 175°C, the widest range among all substitutes. SMBJ9.0CA-HR, SMBJ9.0CA-HRA, and SMBJ9.0CE3/TR13 extend the lower temperature limit to -65°C.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original part's environmental compliance status.

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