Equivalent & Substitute Parts for 5KP9.0C

Part Overview

The 5KP9.0C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 9V reverse standoff voltage, 5000W peak pulse power rating, and through-hole P600 axial packaging. The 5KP9.0C is classified as obsolete, necessitating identification of active substitute components that maintain electrical and mechanical compatibility for new designs and production continuity.

Substiute Parts

5KP9.0C

Littelfuse Inc.In Stock: 8705KP9.0C Datasheet

Current PartRFQ

5KP9.0CA

LittelfuseIn Stock: 43645KP9.0CA Datasheet

DirectRFQ

SA9.0CA

Taiwan Semiconductor CorporationIn Stock: 8331SA9.0CA Datasheet

MFR RecommendedRFQ

5KP9.0CE3/TR13

Microchip TechnologyIn Stock: 9355KP9.0CE3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP9.0C is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 9V
• Voltage - Clamping (Max) @ Ipp: within acceptable range for circuit protection
• Power - Peak Pulse: 5000W or greater
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• RoHS Status: ROHS3 Compliant

Three substitute parts meet these criteria and are grouped as follows:

Group 1 - Direct Littelfuse Substitute: 5KP9.0CA maintains identical series designation, voltage ratings, and 5000W power rating with active product status and tape & reel packaging.

Group 2 - Manufacturer-Recommended Substitute (Microchip): 5KP9.0CE3/TR13 provides P600 package compatibility, 5000W power rating, and active status with marginally higher clamping voltage (16.9V).

Group 3 - Manufacturer-Recommended Substitute (Taiwan Semiconductor): SA9.0CA offers 9V standoff voltage and 15.4V clamping voltage with reduced power rating (500W) and different package designation (DO-204AC/DO-15).

Parameter Comparison

Engineering Selection Recommendations

5KP9.0CA is the primary substitute for the obsolete 5KP9.0C. Both components share identical series designation, voltage specifications, and 5000W power rating. The 5KP9.0CA maintains active product status with ROHS3 compliance and is available in tape & reel packaging for production environments. This substitute provides direct functional equivalence with no circuit redesign required.

5KP9.0CE3/TR13 serves as an alternative substitute with active product status and ROHS3 compliance. This Microchip component maintains P600 package compatibility and 5000W power rating. The clamping voltage specification (16.9V) is marginally higher than the original 5KP9.0C (16.17V), remaining within acceptable protection parameters for general-purpose applications.

SA9.0CA is a manufacturer-recommended substitute with active product status and ROHS3 compliance. However, this Taiwan Semiconductor component features a reduced power rating (500W versus 5000W) and different package designation (DO-204AC/DO-15 versus P600). Selection of SA9.0CA requires circuit-level evaluation to confirm power dissipation requirements do not exceed 500W peak pulse capacity. Package differences may necessitate PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can 5KP9.0CA directly replace 5KP9.0C without circuit modifications?

A: Yes. The 5KP9.0CA maintains identical voltage ratings (9V reverse standoff), equivalent clamping voltage (15.4V), and matching 5000W power rating. Both components use P600 axial through-hole packaging. No circuit redesign is required.

Q: What is the primary difference between 5KP9.0CE3/TR13 and 5KP9.0CA?

A: Both maintain 9V standoff voltage and 5000W power rating with P600 packaging. The 5KP9.0CE3/TR13 has a clamping voltage of 16.9V compared to 5KP9.0CA at 15.4V. Selection depends on circuit protection requirements and acceptable voltage clamping limits.

Q: Why does SA9.0CA have a lower power rating than the original 5KP9.0C?

A: The SA9.0CA is rated for 500W peak pulse power, compared to 5000W for the 5KP9.0C. This component is suitable only for applications with lower transient energy requirements. Circuit analysis must confirm peak pulse power does not exceed 500W.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The 5KP9.0CA, 5KP9.0CE3/TR13, and SA9.0CA are all ROHS3 compliant, matching the compliance status of the original 5KP9.0C.

Q: Does SA9.0CA require PCB layout changes?

A: Yes. The SA9.0CA uses DO-204AC (DO-15) package designation, differing from the P600 package of the original component. PCB footprint modifications are necessary for mechanical fit.

Q: What is the operating temperature range for all substitute parts?

A: All substitute components operate across -55°C to 175°C (TJ), matching the original 5KP9.0C specification.