Littelfuse 5KP5.0 Transient Voltage Suppressor (TVS) Equivalent & Substitute Parts

Part Overview

The Littelfuse 5KP5.0 is a unidirectional Zener-type transient voltage suppressor diode designed for general-purpose overvoltage protection applications. This through-hole component features a 5V reverse standoff voltage and 9.66V maximum clamping voltage at peak pulse current, with 5000W peak pulse power handling capability. The 5KP5.0 is classified as obsolete, making identification of functionally equivalent active alternatives essential for new designs and ongoing production requirements.

Substiute Parts

5KP5.0

Littelfuse Inc.In Stock: 10565KP5.0 Datasheet

Current PartRFQ

5KP5.0A

Littelfuse Inc.In Stock: 14525KP5.0A Datasheet

DirectRFQ

5KP5.0E3/TR13

Microchip TechnologyIn Stock: 11355KP5.0E3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP5.0 is determined by the following critical electrical and mechanical parameters:

• Voltage Rating: Reverse standoff voltage of 5V and breakdown voltage minimum of 6.03V establish the protection threshold
• Clamping Voltage: Maximum clamping voltage at peak pulse current must remain within acceptable limits for protected circuitry
• Peak Pulse Power: 5000W capability defines the transient energy dissipation capacity
• Package Compatibility: P600 axial through-hole package ensures mechanical and thermal compatibility
• Unidirectional Configuration: Single-channel Zener topology for single-polarity overvoltage protection
• Operating Temperature Range: -55°C to 175°C junction temperature specification
• Compliance: ROHS3 compliance and EAR99 export classification

Substitute parts must maintain electrical equivalence across these parameters while offering active product status for ongoing availability.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain electrical equivalence to the 5KP5.0 across all critical parameters. Selection between alternatives should be based on the following factors:

5KP5.0A (Littelfuse Inc.)

• Active product status with established supply chain
• Clamping voltage of 9.2V provides tighter voltage regulation compared to the original 9.66V specification
• Available in Cut Tape packaging format
• Maintains Littelfuse manufacturer continuity

5KP5.0E3/TR13 (Microchip Technology)

• Active product status with established supply chain
• Clamping voltage of 9.6V closely matches the original 9.66V specification
• Available in Tape & Reel packaging format for automated assembly
• Cross-manufacturer alternative with equivalent electrical performance

Both parts satisfy ROHS3 compliance and EAR99 export classification requirements. Selection may be influenced by packaging requirements (Cut Tape versus Tape & Reel), existing supplier relationships, and procurement lead times.

Frequently Asked Questions (FAQ)

Q: Can the 5KP5.0A and 5KP5.0E3/TR13 be used interchangeably with the 5KP5.0?

A: Both substitute parts maintain the same reverse standoff voltage (5V), peak pulse power (5000W), operating temperature range (-55°C to 175°C), and P600 axial through-hole package. Clamping voltages differ slightly (9.2V and 9.6V respectively versus 9.66V), but remain within acceptable tolerance for general-purpose transient voltage suppression applications.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging is suitable for manual component handling and small-volume assembly. Tape & Reel (TR) packaging is designed for automated pick-and-place assembly equipment and high-volume production. Both formats contain identical components; packaging selection depends on assembly methodology.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 5KP5.0A and 5KP5.0E3/TR13 are both ROHS3 compliant, matching the compliance status of the original 5KP5.0.

Q: Why is the 5KP5.0 classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Littelfuse Inc. The 5KP5.0A provides direct manufacturer continuity as an active alternative from the same manufacturer.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by reverse standoff voltage (5V), peak pulse power (5000W), clamping voltage range (9.2V to 9.66V), operating temperature range (-55°C to 175°C), and unidirectional Zener topology. All substitute parts meet these criteria.

Q: Can I use a different package type as a substitute?

A: No. The P600 axial through-hole package is mechanically and thermally specific to this application. Substitutes must maintain identical package specifications to ensure proper circuit board integration and thermal performance.