SMBJ9.0CA-TP Equivalent & Substitute Parts

Part Overview

The SMBJ9.0CA-TP is a transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 9V reverse standoff voltage with a 15.4V maximum clamping voltage and 39A peak pulse current capability in a DO-214AA (SMB) package. The part is active in production status and ROHS3 compliant. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining equivalent electrical and mechanical performance.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	9	V
Voltage - Breakdown (Min)	10	V
Voltage - Clamping (Max) @ Ipp	15.4	V
Current - Peak Pulse (10/1000µs)	39	A
Power - Peak Pulse	600	W
Type	Zener	-
Bidirectional Channels	1	-
Package / Case	DO-214AA, SMB	-
Mounting Type	Surface Mount	-
Operating Temperature Range	-55°C ~ 175°C	TJ
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for the SMBJ9.0CA-TP are qualified based on the following critical parameters that determine functional equivalence:

Voltage - Reverse Standoff: 9V (exact match required)
Voltage - Clamping (Max) @ Ipp: 15.4V (exact match required)
Current - Peak Pulse (10/1000µs): 39A or 40A (within acceptable tolerance)
Power - Peak Pulse: 600W (exact match required)
Package / Case: DO-214AA, SMB (exact match required)
Type: Zener, Bidirectional (exact match required)
RoHS Status: ROHS3 Compliant (compliance requirement)

All identified substitute parts meet these electrical and mechanical criteria. Variations in manufacturer, packaging format (Tape & Reel vs. Cut Tape), and operating temperature range do not affect functional substitution when the above parameters are matched.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Clamping (Max) @ Ipp (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Package	Operating Temperature (°C)	RoHS Status
SMBJ9.0CA-TP	Micro Commercial Co	9	15.4	39	600	DO-214AA, SMB	-55 ~ 175	ROHS3 Compliant
SMBJ9.0CA	Taiwan Semiconductor Corporation	9	15.4	40	600	DO-214AA, SMB	-55 ~ 150	ROHS3 Compliant
SMBJ9.0CA-13-F	Diodes Incorporated	9	15.4	39	600	DO-214AA, SMB	-55 ~ 150	ROHS3 Compliant
SMBJ9.0CA-E3/52	Vishay General Semiconductor - Diodes Division	9	15.4	39	600	DO-214AA, SMB	-55 ~ 150	ROHS3 Compliant
SMBJ9V0CA	Taiwan Semiconductor Corporation	9	15.4	39	600	DO-214AA, SMB	-55 ~ 150	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance, meeting regulatory requirements for current applications. Selection among equivalent parts should be based on:

Availability and lead time from the respective manufacturer
Packaging format requirements (Tape & Reel vs. Cut Tape & Digi-Reel)
Operating temperature range compatibility with the application environment
Current capacity tolerance (39A vs. 40A peak pulse current)

The SMBJ9.0CA from Taiwan Semiconductor Corporation offers 40A peak pulse current, providing a 1A margin above the original specification. The SMBJ9.0CA-TP operates to 175°C junction temperature, which exceeds the 150°C maximum of most substitutes; applications requiring this extended temperature range should verify substitute part suitability.

Frequently Asked Questions (FAQ)

Q: Can SMBJ9.0CA substitute for SMBJ9.0CA-TP in all applications?

A: Yes, provided the application does not require operation above 150°C junction temperature. The SMBJ9.0CA meets all critical electrical parameters (9V standoff, 15.4V clamping, 600W peak power) and maintains ROHS3 compliance. The 40A peak pulse current exceeds the original 39A specification.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging is supplied on continuous tape for automated assembly lines. Cut Tape (CT) & Digi-Reel packaging provides smaller quantities on individual tape segments. Both formats contain identical components; selection depends on production volume and assembly equipment compatibility.

Q: Are all substitute parts pin-compatible with the original SMBJ9.0CA-TP?

A: Yes. All substitute parts use the DO-214AA (SMB) package with identical pin configuration and footprint. Direct PCB substitution is possible without layout modifications.

Q: Does the operating temperature range affect substitution suitability?

A: The SMBJ9.0CA-TP operates to 175°C junction temperature, while most substitutes are rated to 150°C. For applications operating within -55°C to 150°C, all substitutes are functionally equivalent. Applications requiring sustained operation above 150°C should retain the original SMBJ9.0CA-TP or verify substitute part performance at elevated temperatures.

Q: What is the significance of the 39A vs. 40A peak pulse current difference?

A: Both values fall within the same product family specification window. The 40A rating of SMBJ9.0CA from Taiwan Semiconductor Corporation provides additional transient current handling capacity without affecting circuit compatibility or requiring design changes.

Q: Are all substitute parts REACH compliant?

A: Yes. All listed substitute parts carry REACH Unaffected status, indicating compliance with chemical substance regulations.

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