5KP20E3/TR13 Equivalent & Substitute Parts

Part Overview

The 5KP20E3/TR13 is an active Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This unidirectional Zener-type TVS diode features a 20V reverse standoff voltage with a 35.8V maximum clamping voltage and 140A peak pulse current capability. The device is packaged in P600 axial through-hole format on tape and reel (TR) for automated assembly.

Equivalent and substitute parts are identified when alternative TVS diodes meet the functional requirements of the original circuit design while maintaining compatibility with the mechanical mounting interface and electrical performance envelope. Substitute parts may vary in peak pulse current capacity, clamping voltage, and packaging format while remaining suitable for the intended application.

Substiute Parts

5KP20E3/TR13

Microchip TechnologyIn Stock: 11575KP20E3/TR13 Datasheet

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1.5KE27A

Taiwan Semiconductor CorporationIn Stock: 301961.5KE27A Datasheet

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5KP20A

Diotec SemiconductorIn Stock: 172765KP20A Datasheet

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P6KE22A

Fairchild SemiconductorIn Stock: 28202P6KE22A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5KP20E3/TR13 are selected based on the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff (Typ): Range 18.8V to 23.1V
• Voltage - Clamping (Max) @ Ipp: Range 30.6V to 37.5V
• Current - Peak Pulse (10/1000µs): Minimum 20A
• Power - Peak Pulse: Minimum 600W
• Type: Zener unidirectional TVS diode
• Unidirectional Channels: 1

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package / Case: Axial configuration (P600, DO-201, or DO-15)

Compliance Criteria:

• Product Status: Active
• RoHS Status: ROHS3 Compliant
• Operating Temperature Range: Minimum -50°C to 175°C

Substitute parts may differ in peak pulse current capacity, exact clamping voltage, and specific package designation while remaining functionally equivalent for general-purpose transient voltage suppression applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 5KP20A (Diotec Semiconductor)

The 5KP20A is the closest electrical and mechanical equivalent to the 5KP20E3/TR13. Both devices share identical reverse standoff voltage (20V), breakdown voltage (22.2V minimum), and power dissipation rating (5000W peak pulse). The 5KP20A delivers 154A peak pulse current compared to 140A in the original part, providing enhanced transient suppression capability. Both devices use P600 axial through-hole packaging and are ROHS3 compliant. The 5KP20A operates across -50°C to 175°C, meeting the thermal requirements of most general-purpose applications. This substitute is suitable for direct replacement in existing PCB designs without layout modifications.

Secondary Substitute: 1.5KE27A (Taiwan Semiconductor Corporation)

The 1.5KE27A operates at a higher reverse standoff voltage (23.1V) and clamping voltage (37.5V), making it suitable for applications requiring slightly elevated voltage protection thresholds. Peak pulse current is reduced to 42A with 1500W power dissipation, limiting its use to lower-energy transient events. The device uses DO-201 axial through-hole packaging, which differs from the P600 format but maintains mechanical compatibility with standard through-hole PCB layouts. This substitute is appropriate when circuit design tolerates higher clamping voltages and lower peak current handling.

Tertiary Substitute: P6KE22A (Fairchild Semiconductor)

The P6KE22A operates at a lower reverse standoff voltage (18.8V) and provides minimal peak pulse current (20A) with 600W power dissipation. This device is suitable only for low-energy transient suppression applications and is not recommended as a primary substitute for high-current protection requirements. The DO-15 axial through-hole package maintains mechanical compatibility with standard PCB designs. Use of this substitute requires verification that circuit transient energy levels remain within the 600W power dissipation envelope.

Compliance Considerations:

All substitute parts maintain active product status and ROHS3 compliance, ensuring long-term availability and environmental regulatory adherence. The 5KP20A and 1.5KE27A both support the full operating temperature range of -55°C to 175°C, matching the original part specification. The P6KE22A operates to -50°C minimum, which may be limiting in extreme cold-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can the 5KP20A directly replace the 5KP20E3/TR13 without PCB modifications?

A: Yes. The 5KP20A uses identical P600 axial through-hole packaging and shares the same reverse standoff voltage (20V) and power rating (5000W). No PCB layout changes are required for direct substitution.

Q: What is the primary difference between the 5KP20A and 1.5KE27A substitutes?

A: The 5KP20A maintains the original 20V reverse standoff voltage and 5000W power rating with 154A peak pulse current. The 1.5KE27A operates at 23.1V reverse standoff with reduced power handling (1500W) and peak current (42A). The 5KP20A is preferred for high-energy transient suppression; the 1.5KE27A is suitable for moderate-energy applications with higher voltage thresholds.

Q: Is the P6KE22A suitable as a substitute for the 5KP20E3/TR13?

A: The P6KE22A is a limited substitute appropriate only for low-energy transient suppression applications. Its 600W power dissipation and 20A peak pulse current are significantly lower than the original part. Use of this substitute requires confirmation that circuit transient energy remains within these reduced specifications.

Q: Do all substitute parts support the same operating temperature range as the original?

A: The 5KP20A and 1.5KE27A support -55°C to 175°C, matching the original specification. The P6KE22A operates to -50°C minimum, which may be insufficient for applications requiring full -55°C cold-temperature performance.

Q: What packaging formats are available among the substitute parts?

A: The 5KP20A uses P600 axial packaging, identical to the original. The 1.5KE27A uses DO-201 axial packaging. The P6KE22A uses DO-15 axial packaging. All three formats are through-hole mounted and compatible with standard PCB designs, though specific footprint dimensions vary.

Q: Are all substitute parts ROHS3 compliant?

A: The 5KP20A and 1.5KE27A are explicitly ROHS3 compliant. The P6KE22A RoHS status is not specified in available documentation. Compliance verification is recommended before use in regulated applications.

Q: How do clamping voltages compare across substitute options?

A: The original 5KP20E3/TR13 clamps at 35.8V maximum. The 5KP20A clamps at 32.4V (lower), the 1.5KE27A at 37.5V (higher), and the P6KE22A at 30.6V (lower). Selection depends on circuit tolerance for voltage overshoot during transient suppression events.

Q: What inventory availability exists for substitute parts?

A: The 5KP20A has 17,200 units in stock. The 1.5KE27A has 30,100 units in stock. The P6KE22A has 28,100 units in stock. All substitutes maintain active product status with established supply chains.