P6KE47A-B Equivalent & Substitute Parts

Part Overview

The P6KE47A-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection applications. This component operates with a reverse standoff voltage of 40.2V and provides clamping at 64.8V with a peak pulse current rating of 9.3A. The part is currently active in production and RoHS3 compliant, making it suitable for modern electronic circuit protection requirements. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and compliance certifications.

Substiute Parts

P6KE47A-B

Diodes IncorporatedIn Stock: 1004P6KE47A-B Datasheet

Current PartRFQ

P6KE47A

Taiwan Semiconductor CorporationIn Stock: 300163P6KE47A Datasheet

DirectRFQ

P6KE47A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 4579P6KE47A-E3/54 Datasheet

DirectRFQ

TP6KE47A

Littelfuse Inc.In Stock: 1853TP6KE47A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6KE47A-B are qualified based on the following critical parameters that determine functional equivalence:

• Voltage - Reverse Standoff (Typ): 40.2V
• Voltage - Clamping (Max) @ Ipp: 64.8V
• Current - Peak Pulse (10/1000µs): 9.3A minimum
• Power - Peak Pulse: 600W
• Package / Case: DO-204AC or DO-15 (axial through-hole)
• Type: Zener, Unidirectional
• RoHS Status: ROHS3 Compliant

All identified substitutes maintain these electrical and mechanical specifications, ensuring direct functional replacement in circuit protection applications. Variations in peak pulse current (9.3A to 9.4A) and operating temperature ranges remain within acceptable tolerance for general-purpose TVS applications.

Parameter Comparison

Engineering Selection Recommendations

All four parts listed—P6KE47A-B, P6KE47A, P6KE47A-E3/54, and TP6KE47A—are active production components with ROHS3 compliance and MSL Level 1 ratings. Selection among these substitutes should be based on:

• Availability and lead time requirements
• Packaging preference (Cut Tape vs. standard packaging)
• Manufacturer qualification requirements for your application
• TP6KE47A includes AEC-Q101 automotive qualification, suitable for automotive-grade applications
• P6KE47A-E3/54 is supplied by Vishay under the TransZorb® series designation
• All parts are suitable for general-purpose transient voltage suppression in the 40.2V standoff voltage class

Frequently Asked Questions (FAQ)

Q: Can P6KE47A from Taiwan Semiconductor Corporation be used as a direct replacement for P6KE47A-B from Diodes Incorporated?

A: Yes. Both parts share identical electrical specifications: 40.2V reverse standoff voltage, 64.8V clamping voltage, 9.3A peak pulse current, and 600W peak pulse power. Both are ROHS3 compliant with DO-15 axial through-hole packaging. Functional compatibility is confirmed.

Q: What is the difference between P6KE47A-E3/54 and the standard P6KE47A?

A: P6KE47A-E3/54 is the Vishay variant supplied in Cut Tape (CT) packaging and branded under the TransZorb® series. Electrical specifications remain identical. The primary difference is packaging format and manufacturer designation.

Q: Is TP6KE47A suitable for automotive applications?

A: Yes. TP6KE47A is qualified to AEC-Q101 automotive standards and carries a Grade designation for automotive use. It maintains all electrical equivalence to the P6KE47A-B while meeting automotive qualification requirements.

Q: Are there any operating temperature differences among these substitutes?

A: P6KE47A-B and P6KE47A-E3/54 specify -55°C to 175°C (TJ) operating range. P6KE47A from Taiwan Semiconductor does not specify operating temperature in the provided data. TP6KE47A specifies -55°C to 175°C (TJ). For applications requiring confirmed temperature specifications, P6KE47A-B, P6KE47A-E3/54, or TP6KE47A are recommended.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. All substitute parts use identical DO-15 axial through-hole packaging with the same pin configuration and mechanical footprint. PCB layouts and circuit designs require no modification for substitution.

Q: What compliance certifications apply to all substitute parts?

A: All parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. MSL Level 1 (Unlimited) applies to all parts, indicating no moisture sensitivity restrictions during storage or handling.