P6SMBJ47A Equivalent & Substitute Parts

Part Overview

The P6SMBJ47A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection in surface-mount applications. This component features a 40.2V reverse standoff voltage with a 64.8V maximum clamping voltage and 9.4A peak pulse current capability in a DO-214AA (SMB) package. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

P6SMBJ47A

Littelfuse Inc.In Stock: 803P6SMBJ47A Datasheet

Current PartRFQ

P6SMB47A

Eaton - Electronics DivisionIn Stock: 17238P6SMB47A Datasheet

DirectRFQ

TPSMB47A

Littelfuse Inc.In Stock: 1226TPSMB47A Datasheet

DirectRFQ

P6SMB47A

Eaton - Electronics DivisionIn Stock: 17238P6SMB47A Datasheet

DirectRFQ

SMBJP6KE47A-TP

Micro Commercial CoIn Stock: 3979SMBJP6KE47A-TP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6SMBJ47A are qualified based on the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 40.2V
• Voltage - Breakdown (Min): 44.7V
• Voltage - Clamping (Max) @ Ipp: 64.8V
• Current - Peak Pulse (10/1000µs): 9.4A
• Power - Peak Pulse: 600W
• Unidirectional Channels: 1
• Mounting Type: Surface Mount
• Package / Case: DO-214AA, SMB

All substitute parts listed maintain identical electrical specifications for voltage suppression and current handling. Package compatibility is maintained across all substitutes in the DO-214AA (SMB) form factor, ensuring direct board-level replacement capability.

Parameter Comparison

Engineering Selection Recommendations

P6SMB47A (Eaton - Electronics Division): Active product status with standard RoHS compliance. Suitable for general telecom applications. Operating temperature range of -55°C to 150°C matches the original P6SMBJ47A specification.

TPSMB47A (Littelfuse Inc.): Active product with ROHS3 compliance and AEC-Q101 automotive qualification. Extended operating temperature range of -65°C to 175°C provides enhanced thermal performance. Recommended for applications requiring automotive-grade reliability or extended temperature operation.

SMBJP6KE47A-TP (Micro Commercial Co): Active product with ROHS3 compliance and REACH unaffected status. Extended operating temperature range of -55°C to 175°C. Suitable for general-purpose applications requiring long-term availability and compliance documentation.

All three substitute parts maintain electrical equivalence to the P6SMBJ47A and are available in active production status, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can P6SMB47A replace P6SMBJ47A directly on the PCB? A: Yes. Both parts share identical electrical specifications (40.2V standoff, 64.8V clamping, 9.4A peak pulse) and the same DO-214AA (SMB) package footprint, enabling direct board-level substitution.

Q: What is the difference between TPSMB47A and P6SMB47A? A: Both maintain identical electrical performance. TPSMB47A offers extended operating temperature range (-65°C to 175°C versus -55°C to 150°C) and includes AEC-Q101 automotive qualification, making it suitable for automotive and high-temperature applications.

Q: Are all substitute parts RoHS compliant? A: Yes. P6SMB47A carries RoHS compliance, while TPSMB47A and SMBJP6KE47A-TP are ROHS3 compliant, meeting current environmental regulations.

Q: Which substitute should be selected for new designs? A: TPSMB47A or SMBJP6KE47A-TP are recommended for new designs due to active product status and extended operating temperature ranges. TPSMB47A is preferred for automotive applications due to AEC-Q101 qualification.

Q: Do all substitutes use the same package? A: Yes. All substitute parts use the DO-214AA (SMB) surface-mount package, ensuring compatibility with existing PCB layouts and assembly processes.