5KP110C Equivalent & Substitute Parts

Part Overview

The 5KP110C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This part operates with a 110V reverse standoff voltage and 5000W peak pulse power rating in a P600 axial through-hole package. The 5KP110C is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	110V
Voltage - Breakdown (Min)	115.65V
Voltage - Clamping (Max) @ Ipp	185.85V
Power - Peak Pulse	5000W (5kW)
Type	Zener
Bidirectional Channels	1
Mounting Type	Through Hole
Package / Case	P600, Axial
Operating Temperature	-55°C ~ 175°C (TJ)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the 5KP110C is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): 110V
Voltage - Clamping (Max) @ Ipp: Must remain within acceptable operating range
Power - Peak Pulse: 5000W minimum
Type: Zener bidirectional TVS diode
Mounting Type: Through Hole
Operating Temperature Range: -55°C ~ 175°C

Substitute parts are grouped into two categories based on package compatibility:

Category 1: P600 Axial Package (Direct Mechanical Fit)

5KP110CA (Littelfuse Inc., Active)
5KP110CAE3/TR13 (Microchip Technology, Active)
5KP110CE3/TR13 (Microchip Technology, Active)

Category 2: R-6 Axial Package (Alternative Mechanical Form)

5KP110CA-G (Comchip Technology, Active)
5KP110CA-TP (Micro Commercial Co, Active)
15KP110CA-TP (Micro Commercial Co, Active, 15kW power rating)
3KP110CA-TP (Micro Commercial Co, Active, 3kW power rating)
A5KP110CA-G (Comchip Technology, Active, Automotive Grade AEC-Q101)

Parameter Comparison

Part Number	Manufacturer	Status	Voltage - Reverse Standoff	Voltage - Clamping (Max) @ Ipp	Power - Peak Pulse	Package / Case	Operating Temperature
5KP110C	Littelfuse Inc.	Obsolete	110V	185.85V	5000W	P600, Axial	-55°C ~ 175°C
5KP110CA	Littelfuse Inc.	Active	110V	177V	5000W	P600, Axial	-55°C ~ 175°C
5KP110CAE3/TR13	Microchip Technology	Active	110V	177V	5000W	P600, Axial	-55°C ~ 175°C
5KP110CE3/TR13	Microchip Technology	Active	110V	196V	5000W	P600, Axial	-55°C ~ 175°C
5KP110CA-G	Comchip Technology	Active	110V	177V	5000W	R-6, Axial	-55°C ~ 150°C
5KP110CA-TP	Micro Commercial Co	Active	110V	177V	5000W	R-6, Axial	-55°C ~ 175°C
15KP110CA-TP	Micro Commercial Co	Active	110V	178V	15000W	R-6, Axial	-55°C ~ 175°C
3KP110CA-TP	Micro Commercial Co	Active	110V	177V	3000W	R-6, Axial	-55°C ~ 175°C
A5KP110CA-G	Comchip Technology	Active	110V	177V	5000W	R-6, Axial	-55°C ~ 150°C

Engineering Selection Recommendations

Primary Substitutes (P600 Package - Direct Fit):

5KP110CA (Littelfuse Inc.) is the recommended primary substitute. It maintains the same manufacturer lineage, P600 axial package, and identical electrical specifications with 110V reverse standoff and 5000W power rating. Active product status ensures long-term availability and supply chain stability.

5KP110CAE3/TR13 (Microchip Technology) provides equivalent electrical performance in tape and reel packaging. Clamping voltage of 177V is within acceptable operating parameters for the 5KP110C application.

5KP110CE3/TR13 (Microchip Technology) offers higher clamping voltage at 196V, suitable for applications requiring additional voltage margin. Active status and ROHS3 compliance confirm current manufacturing support.

Secondary Substitutes (R-6 Package - Alternative Form Factor):

5KP110CA-TP (Micro Commercial Co) and 5KP110CA-G (Comchip Technology) provide 5000W power rating with R-6 axial package. Both maintain 110V reverse standoff and 177V clamping voltage. R-6 package requires PCB layout modification but offers equivalent electrical performance. Operating temperature range extends to 175°C for the Micro Commercial Co variant.

Higher Power Alternative:

15KP110CA-TP (Micro Commercial Co) provides 15000W peak pulse power in R-6 package for applications requiring enhanced transient suppression capability. Electrical parameters remain compatible with 110V standoff voltage and 178V clamping voltage.

Lower Power Alternative:

3KP110CA-TP (Micro Commercial Co) provides 3000W peak pulse power for cost-sensitive applications where full 5000W capability is not required. Electrical parameters remain within specification.

Automotive Grade Option:

A5KP110CA-G (Comchip Technology) is AEC-Q101 qualified for automotive applications. Operating temperature maximum is 150°C, which is lower than the 5KP110C specification. This part is suitable only for automotive designs with temperature requirements within -55°C to 150°C range.

Frequently Asked Questions (FAQ)

Q: Can I use 5KP110CA as a direct replacement for 5KP110C?

A: Yes. The 5KP110CA maintains identical reverse standoff voltage (110V), equivalent clamping voltage (177V vs. 185.85V), and matching 5000W power rating in the same P600 axial package. Active product status ensures availability.

Q: What is the difference between P600 and R-6 packages?

A: Both are through-hole axial packages formats. P600 and R-6 differ in physical dimensions and lead spacing. PCB layout and component placement must be adjusted when switching between these packages. Electrical performance remains equivalent.

Q: Can I substitute 5KP110CE3/TR13 for 5KP110C?

A: Yes, with consideration for clamping voltage. The 5KP110CE3/TR13 has higher clamping voltage at 196V compared to 5KP110C at 185.85V. This provides additional voltage margin and is acceptable for general-purpose overvoltage protection applications.

Q: Is the 15KP110CA-TP suitable for my 5KP110C application?

A: The 15KP110CA-TP provides higher power dissipation capability (15kW vs. 5kW) and maintains the same 110V reverse standoff voltage. It is suitable if your application can accommodate the R-6 package form factor. Higher power rating provides design margin but may not be necessary for all applications.

Q: Can I use the 3KP110CA-TP instead of 5KP110C?

A: The 3KP110CA-TP has lower power rating (3kW vs. 5kW). Use only if your application peak pulse power requirement is confirmed to be below 3000W. Undersizing power rating may result in component failure during transient events.

Q: What is the difference between tape and reel (TR) and tape and box (TB) packaging?

A: Tape and reel (TR) packaging is suitable for automated assembly processes. Tape and box (TB) packaging is typically used for manual assembly or lower-volume applications. Electrical specifications remain identical; packaging choice depends on manufacturing process requirements.

Q: Is the A5KP110CA-G automotive-qualified?

A: Yes, the A5KP110CA-G is AEC-Q101 qualified for automotive applications. Operating temperature range is -55°C to 150°C. Use this part only in automotive designs where temperature requirements fall within this range.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are ROHS3 compliant, confirming compliance with hazardous substance restrictions for electronic components.

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