5KP110 Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The 5KP110 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose overvoltage protection applications. This component features a 110V reverse standoff voltage rating and 5000W peak pulse power handling capability in a through-hole P600 axial package. The main part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

5KP110

LittelfuseIn Stock: 11605KP110 Datasheet

Current PartRFQ

5KP110A

EIC SEMICONDUCTOR INC.In Stock: 42785KP110A Datasheet

DirectRFQ

5KP110E3/TR13

Microchip TechnologyIn Stock: 8175KP110E3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5KP110 are qualified based on the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 110V (exact match required)
• Voltage - Clamping (Max) @ Ipp: within acceptable operating range for the application
• Power - Peak Pulse: 5000W (5kW) minimum
• Unidirectional Channels: 1 (single channel configuration)
• Mounting Type: Through Hole (mechanical compatibility)
• Operating Temperature Range: minimum -55°C ~ 150°C or better
• RoHS3 Compliance: required for regulatory alignment

The two qualified substitutes maintain the core voltage protection characteristics while offering active product status and improved availability compared to the obsolete main part.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain full electrical compatibility with the 5KP110 across the critical voltage protection parameters. Selection between substitutes should be based on the following factors:

5KP110A (EIC Semiconductor Inc.): This part is actively manufactured and maintains the same 5kW power rating with a lower clamping voltage (177V) compared to the original. The operating temperature range extends to 150°C, which is 25°C lower than the original specification. Package configuration is D-6 axial, requiring mechanical verification for board layout compatibility with P600 footprints.

5KP110E3/TR13 (Microchip Technology): This part is actively manufactured and offers the closest electrical match to the original 5KP110, maintaining the full -55°C ~ 175°C operating temperature range and P600 package compatibility. The clamping voltage is 196V, representing the highest voltage clamp among the three options. This part is supplied in Tape & Reel packaging format.

Both substitutes carry ROHS3 compliance and MSL-1 ratings, meeting regulatory and environmental requirements equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can 5KP110A be used as a direct replacement for 5KP110?

A: The 5KP110A maintains the same 110V reverse standoff voltage and 5000W power rating. However, the package differs (D-6 versus P600), requiring mechanical verification. The operating temperature maximum is reduced to 150°C. Electrical substitution is valid if board layout accommodates the D-6 package and the lower temperature rating is acceptable for the application.

Q: What is the difference between 5KP110E3/TR13 and 5KP110A?

A: Both parts share the same 110V standoff voltage and 5000W power rating. The 5KP110E3/TR13 maintains the original P600 package and full -55°C ~ 175°C temperature range, while offering a higher clamping voltage (196V). The 5KP110A uses a D-6 package and operates to 150°C maximum. The 5KP110E3/TR13 is supplied in Tape & Reel format, while packaging format for 5KP110A is specified as Tape & Reel.

Q: Are all three parts RoHS compliant?

A: Yes. The 5KP110, 5KP110A, and 5KP110E3/TR13 are all ROHS3 compliant with MSL-1 moisture sensitivity ratings.

Q: Which substitute offers the best thermal performance?

A: The 5KP110E3/TR13 maintains the original -55°C ~ 175°C operating temperature range. The 5KP110A is rated to 150°C maximum, representing a 25°C reduction in upper temperature capability.

Q: Can these parts be used interchangeably on the same PCB?

A: Electrical substitution is valid based on voltage and power ratings. However, mechanical compatibility must be verified. The 5KP110E3/TR13 uses the same P600 package as the original, enabling direct footprint compatibility. The 5KP110A uses a D-6 package, which may require board layout modification.