Equivalent & Substitute Parts for P6SMBJ11A

Part Overview

The P6SMBJ11A is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 9.4V reverse standoff voltage, 15.6V maximum clamping voltage, and 600W peak pulse power rating in a surface-mount DO-214AA (SMB) package. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and new designs.

Substiute Parts

P6SMBJ11A

Littelfuse Inc.In Stock: 2591P6SMBJ11A Datasheet

Current PartRFQ

P6SMB11A

Eaton - Electronics DivisionIn Stock: 15183P6SMB11A Datasheet

MFR RecommendedRFQ

SMBJP6KE11A-TP

Micro Commercial CoIn Stock: 6927SMBJP6KE11A-TP Datasheet

DirectRFQ

P6SMB11A

Eaton - Electronics DivisionIn Stock: 15183P6SMB11A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6SMBJ11A are qualified based on strict electrical and mechanical parameter matching:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 9.4V
• Voltage - Breakdown (Min): 10.5V
• Voltage - Clamping (Max) @ Ipp: 15.6V
• Current - Peak Pulse (10/1000µs): 39.1A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Type: Zener

All identified substitute parts maintain these electrical specifications and physical package requirements, ensuring direct functional equivalence in circuit applications. Substitutes are differentiated by manufacturer, product status, and operating temperature range extensions where applicable.

Parameter Comparison

Engineering Selection Recommendations

P6SMB11A (Eaton - Electronics Division) is the primary recommended substitute. This part maintains identical electrical specifications and operating temperature range to the original P6SMBJ11A. The component holds active product status with RoHS compliance certification and is available in high inventory quantities (15,100 pcs), ensuring supply chain continuity. Eaton's established manufacturing and quality infrastructure supports long-term availability for production and field replacement applications.

SMBJP6KE11A-TP (Micro Commercial Co) serves as a secondary equivalent option. This part matches all critical electrical parameters and extends the operating temperature range to -55°C ~ 175°C, providing enhanced thermal performance for applications requiring higher junction temperature tolerance. ROHS3 compliance and REACH unaffected status confirm regulatory alignment. Adequate inventory (6,835 pcs) supports component procurement.

Both substitute parts are qualified for direct replacement based on electrical equivalence, package compatibility, and regulatory compliance. Selection between alternatives depends on supply availability, lead time requirements, and thermal performance needs specific to the application.

Frequently Asked Questions (FAQ)

Q: Can P6SMB11A or SMBJP6KE11A-TP be used as direct replacements for P6SMBJ11A?

A: Yes. Both parts maintain identical voltage ratings (9.4V standoff, 10.5V breakdown, 15.6V clamping), current specifications (39.1A peak pulse), power rating (600W), and physical package (DO-214AA SMB surface mount). Electrical and mechanical compatibility is confirmed.

Q: What is the difference between the two substitute options?

A: P6SMB11A (Eaton) matches the original operating temperature range (-55°C ~ 150°C). SMBJP6KE11A-TP (Micro Commercial Co) extends the upper temperature limit to 175°C, offering enhanced thermal margin for high-temperature environments. Both maintain identical voltage and current specifications.

Q: Are there packaging differences between these parts?

A: All three parts use the DO-214AA (SMB) surface-mount package. P6SMB11A and SMBJP6KE11A-TP are supplied in Tape & Reel (TR) format, standard for automated assembly. The original P6SMBJ11A packaging specification was not detailed but maintains the same physical footprint and mounting requirements.

Q: Do these substitutes meet RoHS compliance requirements?

A: Yes. P6SMB11A carries RoHS certification. SMBJP6KE11A-TP is ROHS3 compliant and REACH unaffected, confirming environmental and regulatory compliance for EU and global markets.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All three parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special desiccant or humidity control requirements.

Q: Which substitute should be selected for new designs?

A: P6SMB11A is recommended for standard applications within the -55°C ~ 150°C operating range. SMBJP6KE11A-TP is preferred for applications requiring extended thermal performance up to 175°C junction temperature. Both parts ensure long-term supply availability and regulatory compliance.