5KP40CA-G Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The 5KP40CA-G is an active Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose transient voltage protection applications. This bidirectional Zener diode features a 40V reverse standoff voltage with 64.5V maximum clamping voltage and 77.52A peak pulse current capability at 5000W peak pulse power. The component is RoHS3 compliant and rated for operating temperatures from -55°C to 150°C. Substitute parts are necessary when addressing packaging format requirements, higher power dissipation needs, or alternative manufacturer availability while maintaining equivalent electrical performance within specified parameter tolerances.

Substiute Parts

5KP40CA-G

Comchip TechnologyIn Stock: 7475KP40CA-G Datasheet

Current PartRFQ

A5KP40CA-G

Comchip TechnologyIn Stock: 975A5KP40CA-G Datasheet

DirectRFQ

15KPA40CA

MDE Semiconductor IncIn Stock: 133015KPA40CA Datasheet

MFR RecommendedRFQ

5KP40CA

Diotec SemiconductorIn Stock: 42335KP40CA Datasheet

MFR RecommendedRFQ

P6KE47CA

Diotec SemiconductorIn Stock: 25492P6KE47CA Datasheet

MFR RecommendedRFQ

SA48CA

Taiwan Semiconductor CorporationIn Stock: 300442SA48CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP40CA-G is determined by the following critical electrical parameters: Voltage - Reverse Standoff (40V nominal), Voltage - Breakdown minimum (44.4V), Voltage - Clamping maximum (64.5V), and Current - Peak Pulse (77.52A). All substitute parts maintain these core electrical specifications within acceptable engineering tolerances. Packaging format variations (R-6, P600, DO-15) and manufacturer differences are accommodated based on application circuit board layout and assembly requirements. Operating temperature range, RoHS3 compliance, and through-hole mounting type are consistent across all listed substitutes. Power dissipation capability may vary between substitute options, with higher-rated alternatives available for applications requiring enhanced transient energy absorption.

Parameter Comparison

Engineering Selection Recommendations

A5KP40CA-G (Comchip Technology) provides direct electrical equivalence to the 5KP40CA-G with identical voltage and current specifications. This substitute differs only in packaging format (Cut Tape versus Tape & Box) and includes AEC-Q101 automotive qualification, making it suitable for applications requiring automotive-grade components. Both parts are manufactured by Comchip Technology and maintain identical electrical performance.

15KPA40CA (MDE Semiconductor Inc) maintains the 40V reverse standoff voltage and comparable clamping voltage while offering significantly higher peak pulse current (229.5A) and power dissipation (15000W). This substitute is appropriate for applications requiring enhanced transient energy absorption capability. The P600 package format differs from the original R-6 specification and requires board layout verification.

5KP40CA (Diotec Semiconductor) delivers equivalent electrical performance with 40V standoff voltage, 64.5V clamping voltage, and 78A peak pulse current. This substitute is available in Tape & Reel packaging and P600 package format. Operating temperature range extends to 175°C, providing enhanced thermal performance compared to the original specification.

P6KE47CA (Diotec Semiconductor) maintains voltage specifications within acceptable tolerance (40.2V standoff, 44.7V breakdown, 64.8V clamping) but features reduced peak pulse current (9.7A) and power dissipation (600W). This substitute is suitable only for lower-energy transient protection applications and uses the DO-15 package format.

SA48CA (Taiwan Semiconductor Corporation) operates at a higher reverse standoff voltage (48V) with correspondingly higher clamping voltage (77.4V) and reduced peak pulse current (6.7A). This substitute is not electrically equivalent for 40V standoff applications and is suitable only for higher-voltage protection circuits.

Frequently Asked Questions (FAQ)

Q: Can A5KP40CA-G replace 5KP40CA-G in all applications? A: Yes. A5KP40CA-G provides identical electrical specifications (40V standoff, 64.5V clamping, 77.52A peak pulse current, 5000W power dissipation) and differs only in packaging format (Cut Tape versus Tape & Box). Both are manufactured by Comchip Technology and are electrically interchangeable.

Q: When should 15KPA40CA be selected instead of the original 5KP40CA-G? A: Select 15KPA40CA when the application requires higher transient energy absorption capability. This substitute provides 229.5A peak pulse current and 15000W power dissipation compared to 77.52A and 5000W in the original part. The P600 package format requires verification against board layout specifications.

Q: Are P6KE47CA and SA48CA suitable direct replacements? A: No. P6KE47CA and SA48CA are not direct electrical equivalents. P6KE47CA provides reduced peak pulse current (9.7A) and power dissipation (600W), suitable only for lower-energy applications. SA48CA operates at 48V standoff voltage with 77.4V clamping voltage, making it unsuitable for 40V protection circuits.

Q: What packaging format differences exist among these substitutes? A: The original 5KP40CA-G uses R-6 axial package. Substitutes include R-6 (A5KP40CA-G), P600 (15KPA40CA, 5KP40CA), and DO-15/DO-204AC (P6KE47CA, SA48CA). Package selection depends on circuit board layout, lead spacing, and assembly equipment compatibility.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitutes maintain RoHS3 compliance, consistent with the original 5KP40CA-G specification.

Q: What is the temperature operating range difference between substitutes? A: The original 5KP40CA-G operates from -55°C to 150°C. Most substitutes extend to 175°C maximum operating temperature, providing enhanced thermal performance for high-temperature applications.