5KP6.5CA-G Equivalent & Substitute Parts

Part Overview

The 5KP6.5CA-G is a transient voltage suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection applications. This through-hole component features a 6.5V reverse standoff voltage and 11.2V maximum clamping voltage with peak pulse current capability of 446.43A. The part is currently active in production with full inventory availability (799 pcs in stock) and carries ROHS3 compliance certification.

Equivalent and substitute parts are identified when component availability is limited, lead times are extended, or design flexibility is required while maintaining functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

5KP6.5CA-G

Comchip TechnologyIn Stock: 8635KP6.5CA-G Datasheet

Current PartRFQ

1.5KE6V8CA

STMicroelectronicsIn Stock: 35931.5KE6V8CA Datasheet

MFR RecommendedRFQ

P6KE6V8CA

Taiwan Semiconductor CorporationIn Stock: 4203P6KE6V8CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP6.5CA-G is determined by the following critical parameters:

Voltage Parameters: Reverse standoff voltage (6.5V typical) and breakdown voltage minimum (7.22V) establish the protection threshold. Substitute parts must operate within the same voltage class to ensure equivalent overvoltage suppression performance.

Current and Power Ratings: Peak pulse current (446.43A at 10/1000µs) and peak pulse power (5000W) define the energy dissipation capability. Substitute parts must meet or exceed these ratings to handle equivalent transient events.

Mounting and Package: Through-hole axial configuration (R-6 package) is the mechanical requirement. Substitute parts must maintain through-hole mounting compatibility for direct board-level replacement.

Compliance and Status: Active product status with ROHS3 compliance ensures regulatory alignment and supply chain continuity.

The identified substitute parts (1.5KE6V8CA and P6KE6V8CA) share the same voltage class (5.8V reverse standoff, 6.45V breakdown minimum) and general-purpose TVS diode classification, enabling functional substitution within the specified electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (5KP6.5CA-G): Maintain use of the original part number when supply and lead time permit. This component is active in production with confirmed inventory (799 pcs) and meets all regulatory requirements.

Secondary Selection (1.5KE6V8CA): This STMicroelectronics substitute operates in the same voltage class (5.8V standoff, 6.45V breakdown) with higher peak pulse current capability (746A) and is actively produced with substantial inventory (3550 pcs). The DO-201 package provides through-hole compatibility. This substitute is suitable for applications where the 5KP6.5CA-G is unavailable.

Tertiary Selection (P6KE6V8CA): This Taiwan Semiconductor Corporation substitute also operates in the same voltage class (5.8V standoff, 6.45V breakdown) with through-hole mounting in the DO-15 package. Peak pulse current (57.1A) and power rating (600W) are lower than the main part. This substitute is suitable only for lower-energy transient suppression applications and is not recommended as a direct replacement for high-current pulse scenarios.

All substitute parts carry ROHS3 compliance and active product status, ensuring regulatory alignment and supply chain viability.

Frequently Asked Questions (FAQ)

Q: Can the 1.5KE6V8CA directly replace the 5KP6.5CA-G in all applications?

A: The 1.5KE6V8CA shares the same voltage class (5.8V standoff, 6.45V breakdown minimum) and exceeds the peak pulse current rating (746A vs. 446.43A). However, the clamping voltage differs (13.4V vs. 11.2V). Substitution is valid when the application tolerates the higher clamping voltage and the DO-201 package footprint is compatible with the board layout.

Q: Why does the P6KE6V8CA have lower current and power ratings?

A: The P6KE6V8CA uses the DO-15 package, which has different thermal and physical characteristics than the R-6 and DO-201 packages. This results in lower peak pulse current (57.1A) and power dissipation (600W) capabilities. This part is suitable only for lower-energy transient protection applications.

Q: Are all substitute parts through-hole components?

A: Yes. The 5KP6.5CA-G (R-6 package), 1.5KE6V8CA (DO-201 package), and P6KE6V8CA (DO-15 package) are all through-hole axial components. Package dimensions differ, requiring PCB footprint verification before substitution.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. All listed parts (5KP6.5CA-G, 1.5KE6V8CA, and P6KE6V8CA) are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080.

Q: What is the key difference in voltage parameters between the main part and substitutes?

A: The 5KP6.5CA-G has a 6.5V reverse standoff voltage, while both substitutes operate at 5.8V. This 0.7V difference means the substitutes will begin conducting at a slightly lower overvoltage threshold. Applications with strict voltage tolerance requirements must account for this variation.