SMBJ90C-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBJ90C-E3/5B is a transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for general-purpose overvoltage protection in surface-mount applications. This part operates with a 90V reverse standoff voltage and provides 160V maximum clamping voltage at peak pulse current. The component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	90V
Voltage - Breakdown (Min)	100V
Voltage - Clamping (Max) @ Ipp	160V
Current - Peak Pulse (10/1000µs)	3.8A
Power - Peak Pulse	600W
Operating Temperature Range	-55°C ~ 150°C (TJ)
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SMBJ90C-E3/5B is determined by the following critical parameters:

Voltage - Reverse Standoff: 90V (all substitutes maintain this specification)
Voltage - Breakdown (Min): 100V (all substitutes maintain this specification)
Package / Case: DO-214AA, SMB (all substitutes use identical package)
Mounting Type: Surface Mount (all substitutes are surface-mount)
RoHS Status: ROHS3 Compliant (all substitutes maintain compliance)
Moisture Sensitivity Level: 1 (Unlimited) (all substitutes maintain this rating)

Substitute parts are grouped into two categories based on clamping voltage performance:

Category A - Matched Clamping Voltage (160V): SMBJ90CE3/TR13 (Microchip Technology) provides identical clamping voltage and peak pulse current specifications.

Category B - Alternative Clamping Voltage (146V): SMBJ90CA-E3/5B (Vishay) and SMBJ90CA (MDD) provide lower clamping voltage (146V) with higher peak pulse current (4.1A), suitable for applications with different transient suppression requirements.

Parameter Comparison

Parameter	SMBJ90C-E3/5B (Main)	SMBJ90CA-E3/5B	SMBJ90CE3/TR13	SMBJ90CA (MDD)
Manufacturer	Vishay General Semiconductor	Vishay General Semiconductor	Microchip Technology	MDD
Product Status	Obsolete	Active	Active	Active
Voltage - Reverse Standoff (Typ)	90V	90V	90V	90V
Voltage - Breakdown (Min)	100V	100V	100V	100V
Voltage - Clamping (Max) @ Ipp	160V	146V	160V	146V
Current - Peak Pulse (10/1000µs)	3.8A	4.1A	3.8A	4.1A
Power - Peak Pulse	600W	600W	600W	600W
Operating Temperature Range	-55°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 150°C	-50°C ~ 150°C
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute - SMBJ90CE3/TR13 (Microchip Technology): This part provides exact electrical parameter matching with the main part, including identical clamping voltage (160V) and peak pulse current (3.8A). Product status is active with extended operating temperature range (-65°C to 150°C). All regulatory compliance requirements are met.

Secondary Substitutes - SMBJ90CA-E3/5B (Vishay) and SMBJ90CA (MDD): Both parts maintain the same reverse standoff voltage (90V) and breakdown voltage (100V) with active product status. These alternatives feature lower clamping voltage (146V) and higher peak pulse current (4.1A). Selection between these options depends on application requirements for clamping voltage performance. SMBJ90CA (MDD) offers significantly higher inventory availability (29,200 pcs).

All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity rating, and identical package specifications (DO-214AA, SMB surface mount).

Frequently Asked Questions (FAQ)

Q: Can SMBJ90CA-E3/5B be used as a direct replacement for SMBJ90C-E3/5B?

A: SMBJ90CA-E3/5B is electrically compatible for applications where clamping voltage of 146V is acceptable. Both parts share identical reverse standoff voltage (90V), breakdown voltage (100V), package type (DO-214AA, SMB), and mounting method (surface mount). The primary difference is clamping voltage: 160V (original) versus 146V (substitute). Application circuit requirements determine compatibility.

Q: What is the difference between SMBJ90CE3/TR13 and SMBJ90CA variants?

A: SMBJ90CE3/TR13 (Microchip) matches the original clamping voltage specification of 160V with 3.8A peak pulse current. SMBJ90CA variants (Vishay and MDD) provide 146V clamping voltage with 4.1A peak pulse current. Both maintain the same 90V reverse standoff voltage and 100V breakdown voltage. Selection depends on whether the application requires the higher clamping voltage of the original specification.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use DO-214AA (SMB) surface-mount package, ensuring identical PCB footprint and assembly compatibility with the original SMBJ90C-E3/5B.

Q: What is the significance of the obsolete status of SMBJ90C-E3/5B?

A: Obsolete status indicates the part is no longer manufactured by Vishay General Semiconductor. All listed substitute parts maintain active product status, ensuring long-term availability and continued manufacturing support.

Q: Do all parts meet the same regulatory requirements?

A: Yes. All parts listed are ROHS3 compliant, REACH unaffected, and carry MSL rating of 1 (Unlimited), meeting identical regulatory and environmental standards.

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