5KP160 Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The 5KP160 is a unidirectional Zener-type transient voltage suppressor diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 160V reverse standoff voltage rating and 5000W peak pulse power handling capability in a through-hole P600 axial package.

The 5KP160 is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity and ensure continued availability for new production builds and field replacements.

Substiute Parts

5KP160

Littelfuse Inc.In Stock: 9495KP160 Datasheet

Current PartRFQ

5KP160A

Littelfuse Inc.In Stock: 28775KP160A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP160 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must equal 160V
• Voltage - Clamping (Max) @ Ipp: Must be within acceptable operating range for the protected circuit
• Power - Peak Pulse: Must equal or exceed 5000W (5kW)
• Unidirectional Channels: Must equal 1
• Package / Case: Must be P600, Axial (through-hole)
• Operating Temperature Range: Must cover -55°C to 175°C (TJ)
• Type: Must be Zener-type TVS diode

The 5KP160A meets all substitution criteria. Both components share identical reverse standoff voltage, peak pulse power rating, package configuration, temperature range, and RoHS compliance status. The 5KP160A is classified as active product status, ensuring ongoing availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The 5KP160A is the direct substitute for the obsolete 5KP160. Both components maintain identical electrical specifications for reverse standoff voltage and peak pulse power rating, ensuring functional equivalence in circuit protection applications.

The 5KP160A offers the advantage of active product status, providing assured long-term availability and supply chain support. Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity classification, meeting current regulatory and environmental requirements.

The 5KP160A exhibits a lower maximum clamping voltage (259V versus 271.95V) and a higher minimum breakdown voltage (178V versus 168.75V), representing tighter electrical tolerances. These characteristics are compatible with the 160V reverse standoff specification and do not compromise circuit protection performance.

Frequently Asked Questions (FAQ)

Q: Can the 5KP160A be used as a direct replacement for the 5KP160?

A: Yes. Both components share identical reverse standoff voltage (160V), peak pulse power rating (5000W), package configuration (P600 axial through-hole), and operating temperature range (-55°C to 175°C). The 5KP160A is the designated substitute for the obsolete 5KP160.

Q: What are the key differences between the 5KP160 and 5KP160A?

A: The primary difference is product status: the 5KP160 is obsolete, while the 5KP160A is active. The 5KP160A provides specified peak pulse current (19.7A) and exhibits tighter voltage tolerances with a lower maximum clamping voltage (259V) and higher minimum breakdown voltage (178V). Both maintain the same 160V reverse standoff rating and 5000W power handling capability.

Q: Are there any package or mounting differences?

A: No. Both the 5KP160 and 5KP160A use the P600 axial through-hole package, ensuring identical PCB footprint and mounting compatibility.

Q: What is the significance of the clamping voltage difference?

A: The 5KP160A's lower maximum clamping voltage (259V versus 271.95V) represents improved voltage regulation performance. This tighter tolerance provides enhanced protection characteristics while maintaining compatibility with the 160V reverse standoff specification.

Q: Are both parts RoHS compliant?

A: Yes. Both the 5KP160 and 5KP160A are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity classification, meeting current environmental and regulatory standards.