P6SMB22CA-M3/52 Equivalent & Substitute Parts

Part Overview

The P6SMB22CA-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 provides 600W peak pulse power dissipation with an 18.8V reverse standoff voltage and 30.6V maximum clamping voltage. The part is Active status and RoHS3 compliant, suitable for general-purpose transient protection applications. Equivalent and substitute parts are identified based on matching electrical characteristics, package compatibility, and operational parameters within the P6SMB22 series classification.

Substiute Parts

P6SMB22CA-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 766P6SMB22CA-M3/52 Datasheet

Current PartRFQ

1KSMB22CA

Taiwan Semiconductor CorporationIn Stock: 10051KSMB22CA Datasheet

MFR RecommendedRFQ

P6SMB22CA

Good-Ark SemiconductorIn Stock: 20143P6SMB22CA Datasheet

MFR RecommendedRFQ

P6SMB22CA

Good-Ark SemiconductorIn Stock: 20143P6SMB22CA Datasheet

MFR RecommendedRFQ

SM6T22CA

STMicroelectronicsIn Stock: 9914SM6T22CA Datasheet

MFR RecommendedRFQ

SM6T22CAY

STMicroelectronicsIn Stock: 3342SM6T22CAY Datasheet

MFR RecommendedRFQ

TPSMB22CA

Littelfuse Inc.In Stock: 20376TPSMB22CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6SMB22CA-M3/52 are qualified based on the following criteria:

Electrical Parameter Matching:

• Voltage - Reverse Standoff (Typ): 18.8V
• Voltage - Breakdown (Min): 20.9V
• Voltage - Clamping (Max) @ Ipp: 30.6V
• Bidirectional Channels: 1
• Type: Zener

Package Compatibility:

• Package / Case: DO-214AA, SMB (surface mount)

Compliance & Status:

• Product Status: Active
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts maintain these core electrical and mechanical parameters. Variations in peak pulse current (Ipp), power dissipation, and operating temperature ranges are noted but do not disqualify substitution when the primary voltage and package specifications are met.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, qualifying them as direct functional equivalents to the P6SMB22CA-M3/52 for general-purpose transient voltage suppression applications.

1KSMB22CA (Taiwan Semiconductor Corporation): Offers increased peak pulse power dissipation (1000W vs. 600W) and extended upper operating temperature limit (175°C vs. 150°C), with higher peak pulse current capability (32.7A). Suitable for applications requiring enhanced thermal performance.

P6SMB22CA (Good-Ark Semiconductor): Maintains identical electrical and thermal specifications to the original part with matching 600W power rating and 19.6A peak pulse current. Operates within -55°C to 150°C range. High inventory availability (20,100 pcs).

SM6T22CA (STMicroelectronics): Provides significantly higher peak pulse current (102A at 8/20µs pulse width) while maintaining 600W power dissipation and identical voltage specifications. Operates within -55°C to 150°C range.

SM6T22CAY (STMicroelectronics): Automotive-grade variant with AEC-Q101 qualification. Identical electrical specifications to SM6T22CA with 102A peak pulse current. Suitable for automotive applications requiring formal qualification.

TPSMB22CA (Littelfuse Inc.): Automotive-grade component with AEC-Q101 qualification. Maintains 600W power dissipation with 19.9A peak pulse current. Extended operating temperature range (-65°C to 175°C) matches or exceeds the original part specification.

Frequently Asked Questions (FAQ)

Q: Can I substitute the P6SMB22CA-M3/52 with any of these parts without circuit redesign?

A: Yes, all listed parts maintain the critical electrical parameters: 18.8V reverse standoff voltage, 20.9V minimum breakdown voltage, and 30.6V maximum clamping voltage. All use the DO-214AA (SMB) surface mount package. Direct substitution is supported at the circuit level.

Q: What is the difference between the 600W and 1000W rated parts?

A: The 1KSMB22CA provides 1000W peak pulse power dissipation compared to 600W in the original part. This represents enhanced thermal capability and higher peak pulse current handling (32.7A vs. 19.6A). Selection depends on application transient energy requirements.

Q: Why do some parts list different peak pulse current values with different pulse widths?

A: Peak pulse current is pulse-width dependent. The original P6SMB22CA-M3/52 specifies 19.6A at 10/1000µs pulse width. STMicroelectronics parts (SM6T22CA, SM6T22CAY) specify 102A at 8/20µs pulse width. Both specifications are valid for their respective pulse conditions; the parts remain electrically equivalent for the 22V clamping voltage class.

Q: Are the automotive-grade parts (SM6T22CAY, TPSMB22CA) required for non-automotive applications?

A: No. Automotive-grade qualification (AEC-Q101) is not required for general-purpose applications. These parts are suitable for automotive use but function identically to non-automotive variants in standard applications.

Q: What is the significance of the operating temperature range differences?

A: The original part operates -65°C to 150°C. Some substitutes extend to 175°C upper limit or maintain -65°C lower limit. Selection depends on application thermal environment. All parts meet standard industrial temperature ranges.

Q: Can I use these parts interchangeably on the same PCB assembly?

A: Yes. All parts use identical DO-214AA (SMB) surface mount package with the same footprint and pin configuration. PCB layout and assembly processes require no modification.

Q: What packaging formats are available?

A: The original part uses Tape & Box (TB) packaging. Substitutes are available in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® formats. Packaging format does not affect electrical performance or PCB compatibility.