P6KE47A-B Equivalent & Substitute Parts

Part Overview

The P6KE47A-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component operates with a reverse standoff voltage of 40.2V and provides clamping at 64.8V maximum. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical performance characteristics.

Substiute Parts

P6KE47A-B

Littelfuse Inc.In Stock: 980P6KE47A-B Datasheet

Current PartRFQ

P6KE47A

Taiwan Semiconductor CorporationIn Stock: 300163P6KE47A Datasheet

MFR RecommendedRFQ

P6KE47A-E3/54

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6KE47A-B are qualified based on matching the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 40.2V
• Voltage - Clamping (Max) @ Ipp: 64.8V
• Voltage - Breakdown (Min): 44.7V
• Current - Peak Pulse (10/1000µs): 9.3A to 9.4A
• Power - Peak Pulse: 600W
• Mounting Type: Through Hole
• Package / Case: DO-204AC or DO-15 (Axial)
• Type: Zener, Unidirectional (1 channel)

Two substitute parts meet these criteria and are classified as direct equivalents:

P6KE47A (Taiwan Semiconductor Corporation) - Manufacturer-recommended substitute with identical voltage specifications and 9.3A peak pulse current rating.

P6KE47A-E3/54 (Vishay General Semiconductor - Diodes Division) - Direct manufacturer part with matching electrical parameters, supplied in Cut Tape packaging, and operating temperature range of -55°C to 175°C.

Parameter Comparison

Engineering Selection Recommendations

All three parts—P6KE47A-B, P6KE47A, and P6KE47A-E3/54—are active production components with identical RoHS3 and REACH compliance status. Selection between these parts is determined by packaging requirements and inventory availability:

P6KE47A-B (Littelfuse Inc.) - Primary specification. Supplied in bulk packaging with 929 units in stock. Recommended for standard procurement and applications where bulk packaging is acceptable.

P6KE47A (Taiwan Semiconductor Corporation) - Manufacturer-recommended equivalent. Supplied in standard packaging with 300,100 units in stock. Suitable for high-volume applications and as a primary alternative source.

P6KE47A-E3/54 (Vishay General Semiconductor) - Direct equivalent supplied in Cut Tape (CT) packaging with 4,550 units in stock. Recommended for automated assembly processes and applications requiring tape-and-reel format.

All three parts share identical electrical performance within the specified parameter ranges and are suitable for direct substitution in circuit designs requiring 40.2V standoff voltage TVS protection.

Frequently Asked Questions (FAQ)

Q: Can P6KE47A replace P6KE47A-B in my circuit?

A: Yes. Both parts share identical voltage specifications (40.2V standoff, 64.8V clamping), peak pulse power (600W), and through-hole DO-15 packaging. The 0.1A difference in peak pulse current (9.3A vs. 9.4A) is within acceptable tolerance for general-purpose TVS applications.

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

A: Both parts are electrically identical with matching voltage and current ratings. The primary difference is packaging: P6KE47A is supplied in standard packaging, while P6KE47A-E3/54 is supplied in Cut Tape (CT) format suitable for automated pick-and-place assembly.

Q: Are all three parts RoHS3 compliant?

A: Yes. P6KE47A-B, P6KE47A, and P6KE47A-E3/54 are all RoHS3 compliant with REACH Unaffected status, meeting environmental and regulatory requirements for industrial and commercial applications.

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

A: Yes, provided your circuit board design accommodates the DO-15 axial through-hole package format. All three parts use identical pinout and mechanical dimensions for this package type.

Q: Which part should I select for high-volume production?

A: P6KE47A (Taiwan Semiconductor) offers the largest inventory (300,100 units) for sustained high-volume production. P6KE47A-E3/54 (Vishay) in Cut Tape format is optimal if your assembly process uses automated equipment.