5KP20CE3/TR13 Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The 5KP20CE3/TR13 is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This through-hole P600 axial package device operates across a temperature range of -55°C to 175°C and maintains active product status with full RoHS3 compliance. The 20V reverse standoff voltage rating with 35.8V maximum clamping voltage and 140A peak pulse current capability establishes this component as a standard protection element in electronic circuits. Equivalent and substitute parts are identified based on matching voltage ratings, package compatibility, and electrical performance parameters within acceptable operational tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	20	V
Voltage - Breakdown (Min)	22.2	V
Voltage - Clamping (Max) @ Ipp	35.8	V
Current - Peak Pulse (10/1000µs)	140	A
Power - Peak Pulse	5000	W
Mounting Type	Through Hole	—
Package / Case	P600, Axial	—
Operating Temperature Range	-55 to 175	°C
Type	Zener	—
Bidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitute parts for the 5KP20CE3/TR13 are classified into two distinct groups based on electrical and mechanical compatibility criteria:

Group 1: Direct Voltage Rating Equivalents (20V Standoff)

Parts 15KPA20CA, 5KP20CA, and 5KP20CA-TP share the identical 20V reverse standoff voltage rating and 22.2V minimum breakdown voltage as the main part. These components maintain the same voltage protection threshold and are suitable for direct substitution in circuits requiring 20V protection. All three parts feature through-hole mounting in axial packages (P600 or R-6) and operate within compatible temperature ranges. The primary differentiators among these equivalents are peak pulse current capacity, clamping voltage precision, and packaging format (tape & reel versus cut tape).

Group 2: Voltage Rating Variant (250V Standoff)

Part 5KP250CA operates at a significantly different voltage rating of 250V reverse standoff with 277V minimum breakdown voltage. This component is not interchangeable with the 5KP20CE3/TR13 in circuits designed for 20V protection and represents a distinct product line within the 5KP series. This part is included in the substitute list but requires circuit redesign considerations and is applicable only to high-voltage protection applications.

Key Parameters Determining Substitution:

Reverse standoff voltage (20V primary requirement)
Minimum breakdown voltage (22.2V specification)
Package type (P600 or R-6 axial through-hole)
Peak pulse power rating (5000W minimum)
Operating temperature range compatibility
RoHS3 compliance and regulatory status

Parameter Comparison

Parameter	5KP20CE3/TR13 (Main)	15KPA20CA	5KP20CA	5KP20CA-TP	5KP250CA
Manufacturer	Microchip Technology	Good-Ark Semiconductor	Littelfuse	Micro Commercial Co	Littelfuse Inc.
Voltage - Reverse Standoff (Typ)	20V	20V	20V	20V	250V
Voltage - Breakdown (Min)	22.2V	22.34V	22.2V	22.2V	277V
Voltage - Clamping (Max) @ Ipp	35.8V	34.3V	32.4V	32.4V	425V
Current - Peak Pulse (10/1000µs)	140A	440.2A	157.4A	—	12A
Power - Peak Pulse	5000W	15000W	5000W	5000W	5000W
Package / Case	P600, Axial	P-600, Axial	P600, Axial	R-6, Axial	P600, Axial
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature Range	-55 to 175°C	-55 to 150°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Type	Zener	Zener	Zener	Zener	Zener
Bidirectional Channels	1	1	1	1	1
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

For 20V Protection Applications:

The 5KP20CA (Littelfuse) and 5KP20CA-TP (Micro Commercial Co) are direct functional equivalents to the 5KP20CE3/TR13. Both maintain identical 20V reverse standoff voltage, 22.2V minimum breakdown voltage, and 5000W peak pulse power ratings. The 5KP20CA offers superior peak pulse current capacity at 157.4A with a lower clamping voltage of 32.4V, providing enhanced transient suppression performance. Both parts maintain full RoHS3 compliance and unlimited moisture sensitivity rating. The 5KP20CA is available in standard P600 packaging, while the 5KP20CA-TP uses R-6 packaging; package selection depends on circuit board layout requirements.

The 15KPA20CA (Good-Ark Semiconductor) provides enhanced surge handling capability with 440.2A peak pulse current and 15000W peak pulse power, suitable for applications requiring higher transient energy absorption. However, this part operates at a reduced maximum temperature of 150°C compared to the 175°C rating of the main part and substitute equivalents. The 15KPA20CA is appropriate for applications where thermal headroom is not a limiting factor.

For High-Voltage Applications:

The 5KP250CA (Littelfuse) operates at 250V reverse standoff voltage and is not suitable for direct substitution in 20V protection circuits. This part is applicable only to circuits designed for 250V overvoltage protection and represents a different product category within the 5KP series.

Compliance and Regulatory Status:

All substitute parts maintain active product status, RoHS3 compliance, and REACH unaffected designation. All components carry EAR99 export classification and identical HTSUS coding (8541.10.0080), ensuring regulatory consistency across substitution options.

Frequently Asked Questions (FAQ)

Q: Can the 5KP20CA be used as a direct replacement for the 5KP20CE3/TR13?

A: Yes. The 5KP20CA shares the same 20V reverse standoff voltage, 22.2V minimum breakdown voltage, and 5000W peak pulse power rating. Both components feature through-hole P600 axial packaging and operate across -55°C to 175°C. The 5KP20CA is a direct functional equivalent suitable for circuit substitution.

Q: What is the difference between the 5KP20CA and 5KP20CA-TP?

A: Both parts maintain identical electrical specifications (20V standoff, 22.2V breakdown, 5000W power). The primary difference is packaging format: 5KP20CA uses standard P600 axial packaging, while 5KP20CA-TP uses R-6 axial packaging. Package selection depends on circuit board layout and component footprint requirements.

Q: Why is the 15KPA20CA listed as a substitute if it has different electrical ratings?

A: The 15KPA20CA maintains the same 20V reverse standoff voltage and 22.34V minimum breakdown voltage as the main part, making it electrically compatible for 20V protection applications. The higher peak pulse current (440.2A) and power rating (15000W) represent enhanced performance characteristics suitable for circuits requiring greater transient energy absorption. The reduced maximum operating temperature (150°C versus 175°C) must be evaluated against application thermal requirements.

Q: Is the 5KP250CA suitable for replacing the 5KP20CE3/TR13?

A: No. The 5KP250CA operates at 250V reverse standoff voltage, which is fundamentally incompatible with circuits designed for 20V protection. This part is applicable only to high-voltage protection applications and requires complete circuit redesign. Direct substitution would result in inadequate protection at the intended voltage threshold.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (15KPA20CA, 5KP20CA, 5KP20CA-TP, and 5KP250CA) maintain RoHS3 compliance status identical to the main part. All components carry unlimited moisture sensitivity rating (MSL 1) and REACH unaffected designation.

Q: What packaging options are available for 20V equivalent parts?

A: The 5KP20CA is available in standard P600 axial through-hole packaging. The 5KP20CA-TP is available in R-6 axial through-hole packaging. Both packages are through-hole mount types suitable for conventional PCB assembly. Package selection depends on circuit board design specifications and component footprint compatibility.

Q: How do clamping voltage differences affect substitution?

A: The main part specifies 35.8V maximum clamping voltage, while the 5KP20CA and 5KP20CA-TP specify 32.4V. Lower clamping voltage provides superior transient suppression performance by limiting voltage overshoot to a lower level. The 15KPA20CA specifies 34.3V clamping voltage. All values remain within acceptable operating ranges for 20V protection circuits. Clamping voltage selection depends on circuit sensitivity to voltage transients and component tolerance requirements.

Q: Can these parts be used interchangeably in production?

A: Parts with identical 20V reverse standoff voltage ratings (5KP20CA, 5KP20CA-TP, and 15KPA20CA) are functionally equivalent for 20V protection applications. However, packaging format differences (P600 versus R-6) and peak pulse current variations must be evaluated against specific circuit board layout and transient energy requirements. Production substitution requires verification of package compatibility with existing PCB footprints and confirmation that enhanced current handling (15KPA20CA) does not introduce thermal or performance concerns.

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