5KP85CA-G Equivalent & Substitute Parts

Part Overview

The 5KP85CA-G is a transient voltage suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose voltage protection applications. This through-hole component features an 85V reverse standoff voltage with a 137V maximum clamping voltage and 36.5A peak pulse current capability. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to provide equivalent or enhanced protection characteristics for applications requiring component alternatives due to availability, packaging preferences, or performance requirements.

Substiute Parts

5KP85CA-G

Comchip TechnologyIn Stock: 8495KP85CA-G Datasheet

Current PartRFQ

15KPA85CA

MDE Semiconductor IncIn Stock: 189215KPA85CA Datasheet

MFR RecommendedRFQ

5KP85CA

Diotec SemiconductorIn Stock: 46765KP85CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP85CA-G is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 85V
• Voltage - Clamping (Max) @ Ipp: 137V ±0.6V tolerance acceptable
• Mounting Type: Through Hole
• Bidirectional Channels: 1
• Type: Zener
• RoHS3 Compliance: Required

The identified substitute parts maintain the core voltage protection characteristics (85V standoff, 137V clamping range) and through-hole mounting configuration. Variations in peak pulse current (36A to 109.7A) and power dissipation (5kW to 15kW) represent enhanced or equivalent performance levels suitable for the same application class. Package case variations (R-6 to P600) are acceptable provided through-hole mounting is maintained.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status with full RoHS3 compliance, ensuring regulatory alignment and long-term availability.

The 5KP85CA from Diotec Semiconductor provides direct functional equivalence to the 5KP85CA-G, with identical voltage parameters (85V standoff, 137V clamping) and equivalent peak pulse current (36A vs. 36.5A). This substitute accommodates packaging preference changes from R-6 to P600 axial case while maintaining 5kW power dissipation. Operating temperature range extends to 175°C, providing enhanced thermal margin.

The 15KPA85CA from MDE Semiconductor Inc represents an enhanced substitute with superior current handling (109.7A peak pulse) and power dissipation (15kW), maintaining the same voltage protection envelope. This part accommodates applications requiring higher transient energy absorption while preserving the 85V/137.6V voltage characteristics. Extended operating temperature range (-55°C to 175°C) and bulk packaging availability support high-volume deployment scenarios.

Frequently Asked Questions (FAQ)

Q: Can the 15KPA85CA replace the 5KP85CA-G in all applications?

A: The 15KPA85CA maintains identical reverse standoff voltage (85V) and clamping voltage (137.6V), with enhanced current and power ratings. It is suitable for applications where the original 5kW power dissipation is adequate or where higher transient energy absorption is beneficial. Package case change from R-6 to P600 requires PCB layout verification for through-hole mounting compatibility.

Q: What is the difference between the 5KP85CA (Diotec) and 5KP85CA-G (Comchip)?

A: Both parts share identical voltage specifications (85V standoff, 137V clamping) and equivalent peak pulse current ratings (36A vs. 36.5A). The primary differences are manufacturer identity, package case designation (P600 vs. R-6), and operating temperature range (-50°C to 175°C vs. -55°C to 150°C). Both are RoHS3 compliant and active in production.

Q: Are package case changes from R-6 to P600 acceptable?

A: Both R-6 and P600 are axial through-hole packages. Substitution requires verification that PCB pad spacing and mounting hole dimensions accommodate the P600 case geometry. Electrical performance is unaffected by this package transition.

Q: Which substitute part should be selected for high-temperature applications?

A: Both the 15KPA85CA (MDE Semiconductor) and 5KP85CA (Diotec) support operating temperatures to 175°C, compared to the original 5KP85CA-G maximum of 150°C. Either substitute provides thermal margin for elevated ambient or junction temperature conditions.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. The 5KP85CA (Diotec) and 15KPA85CA (MDE Semiconductor) are both RoHS3 compliant, matching the regulatory status of the 5KP85CA-G.