5KP6.5A-G Equivalent & Substitute Parts

Part Overview

The 5KP6.5A-G is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose transient voltage protection applications. This through-hole component features a 6.5V reverse standoff voltage and 11.2V maximum clamping voltage, with peak pulse power handling of 5000W. The part is currently active in production with 690 pieces available in new original inventory. TVS diodes require substitute evaluation when original stock becomes unavailable, when alternative sourcing is needed for supply chain optimization, or when equivalent performance specifications can be met by alternative manufacturers.

Substiute Parts

5KP6.5A-G

Comchip TechnologyIn Stock: 7435KP6.5A-G Datasheet

Current PartRFQ

P6KE6V8A

Fairchild SemiconductorIn Stock: 19234P6KE6V8A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP6.5A-G is evaluated based on the following critical parameters that define functional equivalence:

Voltage Parameters: Reverse standoff voltage (6.5V typical), breakdown voltage minimum (7.22V), and maximum clamping voltage (11.2V) establish the protection threshold and response characteristics. Substitute parts must operate within these voltage specifications to provide equivalent circuit protection.

Current and Power Handling: Peak pulse current (446.43A at 10/1000µs) and peak pulse power (5000W) define the transient energy dissipation capability. These parameters determine whether a substitute can handle the same fault conditions.

Physical and Electrical Configuration: Unidirectional channel configuration (1 channel), through-hole mounting type, and R-6 axial package establish the form factor and circuit integration requirements.

Compliance and Environmental: RoHS3 compliance, MSL Level 1, and operating temperature range (-55°C to 150°C) ensure regulatory and environmental compatibility.

The P6KE6V8A from Fairchild Semiconductor is identified as a substitute based on comparable voltage protection characteristics and general-purpose TVS application alignment, though specific parameter variations exist as detailed in the comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Both the 5KP6.5A-G and P6KE6V8A are active production components classified under the same ECCN (EAR99) and HTSUS codes, confirming regulatory alignment for general-purpose TVS applications.

The 5KP6.5A-G provides higher peak pulse current capacity (446.43A versus 298A) and significantly higher peak pulse power handling (5000W versus 600W), making it suitable for applications requiring greater transient energy dissipation. The R-6 axial package maintains compatibility with through-hole PCB designs.

The P6KE6V8A operates at a lower reverse standoff voltage (5.8V versus 6.5V) and exhibits a higher maximum clamping voltage (13.4V versus 11.2V), with reduced power handling capability. The DO-15 package variant provides an alternative through-hole form factor.

Selection between these components should be based on specific circuit protection requirements, available PCB footprint compatibility, and application-level transient energy specifications.

Frequently Asked Questions (FAQ)

Q: Can the P6KE6V8A directly replace the 5KP6.5A-G in all applications?

A: Direct replacement depends on application-specific requirements. The P6KE6V8A has lower peak pulse current (298A versus 446.43A) and power handling (600W versus 5000W) capabilities. Applications requiring the full 5000W peak pulse power dissipation of the 5KP6.5A-G cannot use the P6KE6V8A as a substitute. Voltage protection thresholds also differ (5.8V standoff versus 6.5V standoff).

Q: What are the key voltage differences between these parts?

A: The 5KP6.5A-G has a 6.5V reverse standoff voltage and 11.2V maximum clamping voltage. The P6KE6V8A operates at 5.8V reverse standoff and 13.4V maximum clamping voltage. These differences affect the protection threshold and response characteristics in the protected circuit.

Q: Are the packages interchangeable?

A: Both parts use through-hole axial packages, but the specific form factors differ. The 5KP6.5A-G uses R-6 package, while the P6KE6V8A uses DO-15 (DO-204AC). PCB footprint compatibility must be verified before substitution.

Q: What compliance certifications apply to both parts?

A: Both components are RoHS3 compliant, classified under ECCN EAR99, and assigned HTSUS code 8541.10.0080. Both are active production components suitable for general-purpose transient voltage suppression applications.

Q: How do the pulse specifications differ?

A: The 5KP6.5A-G is rated for 446.43A peak pulse current at 10/1000µs pulse width with 5000W peak pulse power. The P6KE6V8A is rated for 298A peak pulse current at 8/20µs pulse width with 600W peak pulse power. These different pulse specifications reflect different transient protection capabilities.