5KP18CE3/TR13 Equivalent & Substitute Parts

Part Overview

The 5KP18CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose transient voltage protection applications. This bidirectional Zener diode operates with an 18V reverse standoff voltage and provides peak pulse power dissipation of 5000W. The component is supplied in Tape & Reel packaging with Through Hole mounting configuration in a P600 axial package.

The 5KP18CE3/TR13 maintains Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical characteristics including reverse standoff voltage, breakdown voltage, clamping voltage, and thermal operating range, while accommodating variations in packaging format and peak pulse current ratings.

Substiute Parts

5KP18CE3/TR13

Microchip TechnologyIn Stock: 9465KP18CE3/TR13 Datasheet

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15KP18CA-TP

Micro Commercial CoIn Stock: 129215KP18CA-TP Datasheet

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15KPA18CA

SETsafe | SETfuseIn Stock: 166815KPA18CA Datasheet

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5KP18CA-TP

Micro Commercial CoIn Stock: 16475KP18CA-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5KP18CE3/TR13 are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

• Voltage - Reverse Standoff (Typ): 18V
• Voltage - Breakdown (Min): 20V minimum
• Operating Temperature Range: -55°C to 175°C
• Bidirectional Channels: 1
• Type: Zener
• Mounting Type: Through Hole
• Applications: General Purpose

Secondary Compatibility Parameters:

• Voltage - Clamping (Max) @ Ipp: Range 29.2V to 32.2V
• Power - Peak Pulse: 5000W to 15000W
• Package / Case: P600 or R-6 axial configurations

Substitutes are grouped into two categories: direct equivalents with identical electrical performance and alternative suppliers offering compatible voltage and thermal characteristics with different packaging formats or enhanced power ratings.

Parameter Comparison

Engineering Selection Recommendations

5KP18CA-TP (Micro Commercial Co)

This substitute maintains identical power dissipation (5000W) and voltage specifications with the main part. The clamping voltage of 29.2V is within acceptable tolerance of the 32.2V specification. The R-6 axial package is mechanically compatible with Through Hole mounting applications. ROHS3 compliance and REACH Unaffected status align with the main part's regulatory certifications. This substitute is suitable for direct replacement in applications where packaging format flexibility is acceptable.

15KP18CA-TP (Micro Commercial Co)

This substitute provides enhanced power dissipation capability at 15000W while maintaining the same 18V reverse standoff voltage and -55°C to 175°C operating range. The clamping voltage of 30.9V is within acceptable tolerance. ROHS3 compliance and REACH Unaffected status match the main part. The R-6 axial package supports Through Hole mounting. This substitute is applicable in applications requiring higher transient energy absorption capacity.

15KPA18CA (SETsafe | SETfuse)

This substitute offers the highest peak pulse current rating at 488.7A with 15000W power dissipation. The P600 axial package matches the main part's physical form factor. The breakdown voltage of 20.11V and clamping voltage of 30.9V remain within acceptable specifications. However, this substitute carries RoHS non-compliant status and Vendor Undefined REACH status, which may restrict use in regulated applications requiring full compliance documentation. Selection of this substitute requires verification of regulatory requirements for the end application.

Frequently Asked Questions (FAQ)

Q: Can the 5KP18CA-TP substitute for the 5KP18CE3/TR13 in all applications?

A: The 5KP18CA-TP is electrically compatible, maintaining the same 18V reverse standoff voltage, 20V minimum breakdown voltage, and 5000W power dissipation. The primary difference is packaging format (Cut Tape versus Tape & Reel) and the R-6 package variant. Both are Through Hole axial configurations suitable for PCB mounting. Compatibility depends on whether the application accepts the R-6 package form factor and Cut Tape delivery format.

Q: What is the difference between the 5KP and 15KP series substitutes?

A: The 15KP series (15KP18CA-TP and 15KPA18CA) provides 15000W peak pulse power dissipation compared to the 5000W rating of the 5KP series. Both maintain the same 18V reverse standoff voltage and -55°C to 175°C operating temperature range. The 15KP series is applicable in applications requiring higher transient energy absorption. The 15KPA18CA additionally provides 488.7A peak pulse current versus unspecified current in the 15KP18CA-TP.

Q: Are there compliance differences between the substitute parts?

A: The 5KP18CA-TP and 15KP18CA-TP maintain ROHS3 compliance and REACH Unaffected status matching the main part. The 15KPA18CA is RoHS non-compliant with Vendor Undefined REACH status. Applications subject to RoHS or REACH regulatory requirements must use either the main part or the Micro Commercial Co substitutes (5KP18CA-TP or 15KP18CA-TP).

Q: What packaging formats are available for these substitutes?

A: The main part 5KP18CE3/TR13 is supplied in Tape & Reel format. The 5KP18CA-TP and 15KP18CA-TP are supplied in Cut Tape format. The 15KPA18CA is supplied in Bulk format. All three substitutes use Through Hole axial packages (R-6 or P600) compatible with standard PCB assembly processes.

Q: Can the 15KPA18CA be used in applications requiring RoHS compliance?

A: No. The 15KPA18CA is RoHS non-compliant. Applications requiring RoHS3 compliance must use the 5KP18CE3/TR13 main part, 5KP18CA-TP, or 15KP18CA-TP substitutes.

Q: How do clamping voltage differences affect substitution?

A: The main part specifies 32.2V maximum clamping voltage at peak pulse current. The 5KP18CA-TP provides 29.2V clamping and the 15KP18CA-TP and 15KPA18CA provide 30.9V clamping. These variations remain within acceptable tolerance for general-purpose transient voltage suppression applications. Applications with strict clamping voltage requirements should verify compatibility with the specific substitute's specification.

Q: Is the 15KPA18CA suitable for telecom applications?

A: The 15KPA18CA is specified for Telecom applications and carries an Automotive grade designation. However, its RoHS non-compliant status may restrict use in regulated telecom environments. Verification of specific regulatory and compliance requirements for the target telecom application is necessary before selection.