5KP20A-TP Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The 5KP20A-TP is an active, through-hole mounted transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co. This unidirectional zener diode is designed for general-purpose transient voltage suppression applications with a 20V reverse standoff voltage and 5000W peak pulse power rating. The part is housed in an R-6 axial package and is ROHS3 compliant with unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching electrical characteristics (reverse standoff voltage, breakdown voltage, clamping voltage) and mechanical compatibility (through-hole mounting, axial package form factors) while maintaining the same functional application category.

Substiute Parts

5KP20A-TP

Micro Commercial CoIn Stock: 10335KP20A-TP Datasheet

Current PartRFQ

1.5KE22A

Taiwan Semiconductor CorporationIn Stock: 183631.5KE22A Datasheet

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1.5KE24A

Taiwan Semiconductor CorporationIn Stock: 148381.5KE24A 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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LCE20A

Littelfuse Inc.In Stock: 1615LCE20A Datasheet

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TP6KE22A

Littelfuse Inc.In Stock: 2659TP6KE22A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP20A-TP is determined by the following critical parameters:

Electrical Matching Criteria:

• Voltage - Reverse Standoff (Typ): 20V nominal
• Voltage - Breakdown (Min): 22.2V minimum
• Voltage - Clamping (Max) @ Ipp: 32.4V maximum
• Unidirectional zener diode topology
• General-purpose transient suppression application

Mechanical Compatibility Criteria:

• Through-hole mounting configuration
• Axial package form factor (R-6, DO-201, P600 variants acceptable)
• Operating temperature range: -55°C to 175°C

Compliance Requirements:

• ROHS3 compliant
• Active product status

Substitute parts are grouped into two categories based on power dissipation capability: 5000W rated devices (direct equivalents) and 1500W rated devices (lower power alternatives with identical voltage characteristics).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Identical Electrical & Power Rating):

The 5KP20A manufactured by Diotec Semiconductor is a direct electrical equivalent with matching 20V reverse standoff, 22.2V breakdown minimum, 32.4V clamping maximum, and 5000W peak pulse power rating. Package form factor differs (P600 vs. R-6) but both are through-hole axial configurations. This part is ROHS3 compliant and active status. Selection is appropriate where P600 package footprint is acceptable.

Voltage-Matched Alternatives (Lower Power Rating):

The LCE20A (Littelfuse Inc.) provides identical voltage characteristics (20V standoff, 22.2V breakdown, 32.4V clamping) in a DO-201 package with 1500W peak pulse rating. This part is suitable for applications where peak pulse power requirements do not exceed 1500W. ROHS3 compliant and active status.

Voltage-Approximate Alternatives (1500W Rating):

The 1.5KE22A, 1.5KE24A, and 1.5KE27A from Taiwan Semiconductor Corporation provide voltage characteristics within the general 20V operating range with 1500W peak pulse ratings. These parts are suitable only for applications where the lower voltage tolerance and reduced power dissipation are acceptable. All are ROHS3 compliant and active status.

Limited Availability Alternative:

The TP6KE22A (Littelfuse Inc.) is an automotive-grade part (AEC-Q101 qualified) with 18.8V standoff voltage and 600W peak pulse rating. Selection is restricted to automotive applications requiring AEC-Q101 qualification and where 600W power dissipation is sufficient.

Frequently Asked Questions (FAQ)

Q: Can the 5KP20A from Diotec Semiconductor be used as a direct replacement for the 5KP20A-TP?

A: Yes. Both parts share identical electrical specifications (20V reverse standoff, 22.2V breakdown minimum, 32.4V clamping maximum, 5000W peak pulse power). The package form factor differs (P600 vs. R-6), but both are through-hole axial configurations. Verify PCB footprint compatibility before substitution.

Q: What is the difference between the 5KP20A-TP and the LCE20A?

A: Both parts have identical voltage characteristics (20V standoff, 22.2V breakdown, 32.4V clamping). The primary difference is peak pulse power rating: 5KP20A-TP is rated 5000W while LCE20A is rated 1500W. The LCE20A is suitable only for applications where peak pulse power does not exceed 1500W. Package form factors also differ (R-6 vs. DO-201).

Q: Are the 1.5KE series parts suitable substitutes?

A: The 1.5KE22A, 1.5KE24A, and 1.5KE27A have voltage characteristics that deviate from the 5KP20A-TP specification. The 1.5KE22A has 18.8V standoff (vs. 20V), 1.5KE24A has 20.5V standoff (vs. 20V), and 1.5KE27A has 23.1V standoff (vs. 20V). These parts are acceptable only in applications where the voltage tolerance variation is acceptable and peak pulse power requirements do not exceed 1500W.

Q: What does the package designation mean?

A: The 5KP20A-TP uses R-6 package (axial through-hole). Substitute parts use alternative axial packages: P600 (Diotec 5KP20A), DO-201 (Littelfuse LCE20A, Taiwan Semiconductor 1.5KE series), and DO-204AC (Littelfuse TP6KE22A). All are through-hole axial configurations with different physical dimensions. Verify PCB hole spacing and lead diameter compatibility.

Q: Is the TP6KE22A a suitable substitute?

A: The TP6KE22A is suitable only for automotive applications requiring AEC-Q101 qualification. It has 18.8V standoff voltage (vs. 20V) and 600W peak pulse rating (vs. 5000W), making it unsuitable for general-purpose applications matching the 5KP20A-TP specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant. The 5KP20A from Diotec Semiconductor has REACH information available upon request; all other parts have REACH Unaffected status.