P6KE47 Equivalent & Substitute Parts

Part Overview

The P6KE47 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 40.2V reverse standoff voltage and 600W peak pulse power rating in a DO-15 through-hole package. The P6KE47 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage clamping, peak pulse current, and power dissipation parameters while preserving the through-hole DO-15 package form factor.

Substiute Parts

P6KE47

Littelfuse Inc.In Stock: 791P6KE47 Datasheet

Current PartRFQ

P6KE47A

Taiwan Semiconductor CorporationIn Stock: 300163P6KE47A Datasheet

MFR RecommendedRFQ

P6KE47A

Taiwan Semiconductor CorporationIn Stock: 300163P6KE47A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6KE47 is determined by strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

• Voltage - Reverse Standoff (Typ): 40.2V
• Voltage - Clamping (Max) @ Ipp: Must not exceed 68.04V to ensure protection threshold compatibility
• Power - Peak Pulse: 600W minimum
• Package / Case: DO-204AC, DO-15, Axial (through-hole configuration)
• Unidirectional Channels: 1
• Type: Zener diode

The P6KE47A from Taiwan Semiconductor Corporation meets all substitution criteria. This part maintains identical reverse standoff voltage (40.2V), equivalent clamping voltage (64.8V), and matching 600W peak pulse power rating. Both components share the same DO-15 through-hole package configuration and unidirectional topology, enabling direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The P6KE47A from Taiwan Semiconductor Corporation is the qualified substitute for the obsolete P6KE47. Selection is based on the following engineering criteria:

Electrical Compatibility: The P6KE47A maintains the critical 40.2V reverse standoff voltage specification and delivers equivalent 600W peak pulse power dissipation. The clamping voltage of 64.8V is lower than the original 68.04V specification, providing enhanced protection margin in transient suppression applications.

Product Status: The P6KE47A carries Active product status with confirmed inventory availability (300,100 pcs), ensuring long-term supply continuity for production and design requirements.

Compliance & Certification: Both the original and substitute parts are ROHS3 Compliant. The P6KE47A additionally carries REACH Unaffected status, confirming regulatory alignment for international applications.

Package Compatibility: Identical DO-15 through-hole package configuration enables direct PCB layout compatibility without redesign requirements.

Frequently Asked Questions (FAQ)

Q: Can the P6KE47A directly replace the P6KE47 in existing circuit designs?

A: Yes. The P6KE47A maintains identical reverse standoff voltage (40.2V), equivalent power rating (600W), and matching DO-15 through-hole package. The lower clamping voltage (64.8V vs. 68.04V) provides improved transient suppression performance.

Q: What is the primary reason for substitution?

A: The P6KE47 is classified as obsolete. The P6KE47A is an active product with confirmed supply availability, making it the appropriate selection for new designs and ongoing production.

Q: Are there any compliance differences between the original and substitute part?

A: Both parts are ROHS3 Compliant. The P6KE47A additionally carries REACH Unaffected certification, confirming regulatory compliance for international markets.

Q: Does the package form factor remain unchanged?

A: Yes. Both the P6KE47 and P6KE47A use the DO-15 axial through-hole package configuration. No PCB layout modifications are required for substitution.

Q: What electrical parameters determine substitution compatibility?

A: Substitution is determined by reverse standoff voltage (40.2V), peak pulse power rating (600W), clamping voltage performance, and unidirectional topology. The P6KE47A meets all these criteria.