P6SMB11A-M3/5B Equivalent & Substitute Parts

Part Overview

The P6SMB11A-M3/5B is a unidirectional 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 1139 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

P6SMB11A-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 1187P6SMB11A-M3/5B Datasheet

Current PartRFQ

1KSMB11A

Taiwan Semiconductor CorporationIn Stock: 10111KSMB11A Datasheet

MFR RecommendedRFQ

P6SMB11A

Eaton - Electronics DivisionIn Stock: 15183P6SMB11A Datasheet

MFR RecommendedRFQ

SMBJP6KE11A-TP

Micro Commercial CoIn Stock: 6927SMBJP6KE11A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB11A-M3/5B is determined by strict electrical and mechanical compatibility criteria. The following parameters must match or remain within acceptable tolerances:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 9.4V
• Voltage - Breakdown (Min): 10.5V
• Voltage - Clamping (Max) @ Ipp: 15.6V
• Unidirectional Channels: 1
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener

Allowable Variation Parameters:

• Current - Peak Pulse (10/1000µs): May vary based on manufacturer design
• Power - Peak Pulse: May vary based on manufacturer design
• Operating Temperature Range: May extend beyond original specification
• Packaging Format: Tape & Reel (TR) acceptable as alternative to Tape & Box (TB)

All identified substitute parts maintain identical voltage specifications and package compatibility, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and full compliance with RoHS3 or RoHS standards. Selection among equivalent parts should be based on the following factors:

Inventory Availability: The P6SMB11A (Eaton) offers the highest stock level at 15,100 units, followed by SMBJP6KE11A-TP (Micro Commercial Co) at 6,835 units, 1KSMB11A (Taiwan Semiconductor) at 943 units, and the original P6SMB11A-M3/5B (Vishay) at 1,139 units.

Electrical Performance: The 1KSMB11A variant provides enhanced peak pulse current (64.1A) and power dissipation (1kW) compared to the original specification (38.5A, 600W). This part is suitable for applications requiring higher transient energy absorption. The P6SMB11A (Eaton) and SMBJP6KE11A-TP (Micro Commercial Co) maintain electrical performance equivalent to the original part.

Temperature Operating Range: The 1KSMB11A and SMBJP6KE11A-TP extend the upper operating temperature to 175°C, compared to 150°C for the original part and P6SMB11A (Eaton). The original part maintains the lowest temperature rating at -65°C.

Packaging Format: All parts are available in surface mount DO-214AA (SMB) package. The original part is supplied in Tape & Box format, while substitutes are available in Tape & Reel format, which is standard for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the 1KSMB11A be used as a direct replacement for the P6SMB11A-M3/5B?

A: Yes. The 1KSMB11A maintains identical voltage specifications (9.4V standoff, 10.5V breakdown, 15.6V clamping) and package compatibility (DO-214AA, SMB). The higher peak pulse current (64.1A vs. 38.5A) and power dissipation (1kW vs. 600W) represent enhanced performance characteristics that do not compromise circuit functionality.

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

A: Both formats contain the same component in the same package. Tape & Reel (TR) is the standard format for automated surface mount assembly, while Tape & Box (TB) is used for manual handling and smaller quantity orders. Electrical and mechanical specifications remain identical.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts meet RoHS compliance requirements. The original part and three of the four substitutes are ROHS3 compliant. The P6SMB11A (Eaton) is RoHS compliant. All parts have Moisture Sensitivity Level 1 (Unlimited).

Q: Which substitute part should be selected for high-temperature applications?

A: The 1KSMB11A and SMBJP6KE11A-TP both support operating temperatures up to 175°C, compared to 150°C for the original part and P6SMB11A (Eaton). Selection between these two should be based on inventory availability and procurement lead time.

Q: Do all substitute parts have the same pinout and footprint?

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

Q: What is the significance of the peak pulse current rating difference?

A: The 1KSMB11A is rated for 64.1A peak pulse current compared to 38.5A for the original part. This indicates the 1KSMB11A can absorb higher transient energy levels. For circuits designed around the original 38.5A specification, the 1KSMB11A provides additional margin and reliability. The part remains functionally equivalent for applications within the original specification.