P6KE39 Equivalent & Substitute Parts

Part Overview

The P6KE39 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in through-hole applications. The device features a 33.3V reverse standoff voltage with a 56.6V maximum clamping voltage and 600W peak pulse power rating in a DO-15 axial package. The P6KE39 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts maintain electrical and mechanical compatibility while offering active product status from alternative manufacturers.

Substiute Parts

P6KE39

Littelfuse Inc.In Stock: 857P6KE39 Datasheet

Current PartRFQ

P6KE39A

Taiwan Semiconductor CorporationIn Stock: 18061P6KE39A Datasheet

DirectRFQ

P6KE39A

Taiwan Semiconductor CorporationIn Stock: 18061P6KE39A Datasheet

DirectRFQ

P6KE39A-G

Comchip TechnologyIn Stock: 998P6KE39A-G Datasheet

MFR RecommendedRFQ

P6KE39A-HF

Comchip TechnologyIn Stock: 1061P6KE39A-HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6KE39 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 33.3V
• Voltage - Clamping (Max) @ Ipp: Maximum 56.6V
• Power - Peak Pulse: 600W
• Type: Zener, Unidirectional
• Package / Case: DO-15 Axial
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

All substitute parts listed maintain these core electrical specifications and physical package requirements. Substitute parts P6KE39A (Taiwan Semiconductor Corporation), P6KE39A-G (Comchip Technology), and P6KE39A-HF (Comchip Technology) meet these criteria with active product status.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (P6KE39A, P6KE39A-G, P6KE39A-HF) are classified as active products with ROHS3 compliance and MSL 1 rating, making them suitable for new designs and production applications where the obsolete P6KE39 is no longer available.

P6KE39A (Taiwan Semiconductor Corporation) is available in Cut Tape packaging with 17,985 units in stock, providing high availability for volume production.

P6KE39A-G (Comchip Technology) is available in Tape & Box packaging with 890 units in stock and supports an operating temperature range of -55°C to 150°C.

P6KE39A-HF (Comchip Technology) is designated as part of the P6KE-HF series, available in Tape & Box packaging with 984 units in stock, and also supports an operating temperature range of -55°C to 150°C.

Selection between substitute parts should be based on packaging requirements, inventory availability, and thermal operating range specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Can P6KE39A, P6KE39A-G, and P6KE39A-HF be used interchangeably with the P6KE39?

A: Yes. All three substitute parts maintain the same reverse standoff voltage (33.3V), peak pulse power (600W), unidirectional channel configuration, DO-15 axial package, and through-hole mounting type. Clamping voltage specifications are within acceptable tolerance ranges for general-purpose TVS applications.

Q: What is the difference between the three substitute parts?

A: The primary differences are manufacturer (Taiwan Semiconductor Corporation vs. Comchip Technology), packaging format (Cut Tape vs. Tape & Box), inventory availability, and operating temperature range. P6KE39A-G and P6KE39A-HF support -55°C to 150°C, while P6KE39A does not specify an operating temperature range. All maintain identical electrical specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. P6KE39A, P6KE39A-G, and P6KE39A-HF are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What packaging options are available for substitutes?

A: P6KE39A is supplied in Cut Tape (CT) packaging. P6KE39A-G and P6KE39A-HF are supplied in Tape & Box (TB) packaging. All maintain the same DO-15 axial physical package.

Q: Why is the P6KE39 obsolete?

A: The P6KE39 is classified as obsolete by Littelfuse Inc. Active substitute parts from Taiwan Semiconductor Corporation and Comchip Technology provide equivalent electrical and mechanical performance for ongoing production and new design requirements.