SMBJ150CA-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ150CA-M3/52 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and is designed for general-purpose transient voltage suppression applications. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical characteristics and package compatibility to support procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	150V
Voltage - Breakdown (Min)	167V
Voltage - Clamping (Max) @ Ipp	243V
Current - Peak Pulse (10/1000µs)	2.5A
Power - Peak Pulse	600W
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 150°C (TJ)
Bidirectional Channels	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SMBJ150CA-M3/52 are classified into two categories based on electrical parameter matching:

Category 1: Direct Electrical Equivalents Parts that maintain identical electrical specifications across all critical parameters: Voltage - Reverse Standoff (150V), Voltage - Breakdown (167V minimum), Voltage - Clamping (243V maximum), Current - Peak Pulse (2.5A), and Power - Peak Pulse (600W). These parts are interchangeable in circuit applications requiring the same transient suppression characteristics.

Category 2: Manufacturer-Recommended Alternatives Parts with modified voltage ratings (SMBJ130CA) that provide lower standoff voltage (130V) and clamping voltage (209V) with increased peak pulse current (2.87A). These are suitable for applications with lower voltage transient requirements and are designated as manufacturer-recommended alternatives.

The substitution logic is based strictly on the following allowed parameters: reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, power rating, package type, and operating temperature range.

Parameter Comparison

Parameter	SMBJ150CA-M3/52 (Main)	SMBJ150CA-E3/52	SMBJ150CA (MDD)	SMBJ150CA-13-F	SMBJ130CA
Manufacturer	Vishay	Vishay	MDD	Diodes Incorporated	Meritek
Voltage - Reverse Standoff (Typ)	150V	150V	150V	150V	130V
Voltage - Breakdown (Min)	167V	167V	167V	167V	144V
Voltage - Clamping (Max) @ Ipp	243V	243V	243V	243V	209V
Current - Peak Pulse (10/1000µs)	2.5A	2.5A	2.5A	2.5A	2.87A
Power - Peak Pulse	600W	600W	600W	600W	600W
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Operating Temperature Range	-55°C ~ 150°C	-55°C ~ 150°C	-50°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Substitution (Same Electrical Specifications): SMBJ150CA-E3/52 (Vishay), SMBJ150CA (MDD), and SMBJ150CA-13-F (Diodes Incorporated) are direct electrical equivalents to the SMBJ150CA-M3/52. All maintain identical voltage ratings, current ratings, and power dissipation characteristics. Selection among these parts may be based on packaging availability (Tape & Reel vs. alternative packaging), inventory levels, and supply chain considerations. All are ROHS3 compliant with MSL 1 rating.

For Modified Voltage Applications: SMBJ130CA (Meritek) is a manufacturer-recommended alternative for applications requiring lower transient voltage suppression thresholds. This part operates at 130V reverse standoff voltage with 209V clamping voltage, compared to the 150V/243V specifications of the main part. The increased peak pulse current (2.87A) provides enhanced current handling capability. This substitution is appropriate only when circuit design specifications permit the lower voltage ratings.

All substitute parts maintain active product status, ROHS3 compliance, and unlimited moisture sensitivity rating, ensuring compatibility with current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can SMBJ150CA-E3/52 be used as a direct replacement for SMBJ150CA-M3/52? A: Yes. Both parts are manufactured by Vishay and maintain identical electrical specifications: 150V reverse standoff voltage, 167V minimum breakdown voltage, 243V clamping voltage, and 2.5A peak pulse current. The difference is in packaging designation (E3/52 vs. M3/52 tape reel specifications). Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between SMBJ150CA and SMBJ150CA-M3/52? A: SMBJ150CA (MDD) maintains identical electrical specifications but is manufactured by MDD rather than Vishay. The electrical performance is equivalent: 150V standoff, 243V clamping, 2.5A peak pulse current. Operating temperature range is -50°C to 150°C (compared to -55°C to 150°C for the Vishay part). Both use DO-214AA/SMB packaging.

Q: When should SMBJ130CA be used instead of SMBJ150CA-M3/52? A: SMBJ130CA is suitable only for applications where the circuit design permits lower voltage suppression thresholds. This part operates at 130V reverse standoff and 209V clamping voltage, compared to 150V and 243V for the main part. The increased peak pulse current (2.87A vs. 2.5A) may be beneficial in high-transient environments with lower voltage requirements.

Q: Are all substitute parts compatible with the DO-214AA (SMB) package footprint? A: Yes. All listed substitute parts use DO-214AA or SMB package designation, ensuring mechanical and electrical compatibility with the same PCB footprint and solder reflow process.

Q: What compliance certifications apply to all substitute parts? A: All substitute parts are ROHS3 compliant and carry MSL 1 (unlimited moisture sensitivity) rating. REACH status is unaffected for all parts. ECCN classification is EAR99 for all parts listed.

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