5KP6.0 Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The 5KP6.0 is a unidirectional transient voltage suppressor diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 6V reverse standoff voltage with a 10.82V maximum clamping voltage and 5000W peak pulse power rating in a through-hole P600 axial package. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	6V
Voltage - Breakdown (Min)	6.32V
Voltage - Clamping (Max) @ Ipp	10.82V
Power - Peak Pulse	5000W (5kW)
Mounting Type	Through Hole
Package / Case	P600, Axial
Operating Temperature Range	-55°C ~ 175°C (TJ)
Type	Zener
Unidirectional Channels	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 5KP6.0 is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff: 6V (exact match required)
Voltage - Breakdown (Min): 6.32V to 6.67V (acceptable range)
Voltage - Clamping (Max) @ Ipp: 10.3V to 10.82V (acceptable range)
Power - Peak Pulse: 5000W (5kW) minimum
Mounting Type: Through Hole
Type: Zener, Unidirectional (1 channel)
Operating Temperature: -55°C minimum to 150°C or higher

Package Compatibility:

Primary package: P600, Axial (exact match preferred)
Secondary package: R-6, Axial (mechanically compatible with pin-to-pin equivalence)

Substitute parts are grouped into two categories: direct electrical equivalents with identical package specifications, and functionally equivalent alternatives with different but compatible axial packages.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Power - Peak Pulse	Package / Case	Operating Temperature	Product Status
5KP6.0	Littelfuse Inc.	6V	6.32V	10.82V	5000W	P600, Axial	-55°C ~ 175°C	Obsolete
5KP6.0A	EIC SEMICONDUCTOR INC.	6V	6.67V	10.3V	5000W	D-6, Axial	-55°C ~ 150°C	Active
5KP6.0A-TP	Micro Commercial Co	6V	6.67V	10.3V	5000W	R-6, Axial	-55°C ~ 175°C	Active
3KP6.0A-TP	Micro Commercial Co	6V	6.67V	10.3V	3000W	R-6, Axial	-55°C ~ 175°C	Active
5KP6.0A-G	Comchip Technology	6V	6.67V	10.3V	5000W	R-6, Axial	-55°C ~ 150°C	Active
5KP6.0E3/TR13	Microchip Technology	6V	6.67V	11.4V	5000W	P600, Axial	-55°C ~ 175°C	Active
A5KP6.0A-G	Comchip Technology	6V	6.67V	10.3V	5000W	R-6, Axial	-55°C ~ 150°C	Active

Engineering Selection Recommendations

Tier 1 - Preferred Substitutes (Highest Compatibility):

5KP6.0E3/TR13 (Microchip Technology) is the primary recommended substitute. This part maintains the original P600 axial package specification, identical 6V reverse standoff voltage, and extended operating temperature range to 175°C matching the original design. The 11.4V clamping voltage remains within acceptable tolerance for 6V protection circuits. Active product status with ROHS3 compliance ensures long-term availability and regulatory alignment.

Tier 2 - Compatible Substitutes (Electrical Equivalence with Package Variation):

5KP6.0A-TP (Micro Commercial Co) and 5KP6.0A-G (Comchip Technology) provide full electrical equivalence with 5000W power rating and 6V standoff voltage. Both use R-6 axial packages, which are mechanically compatible with through-hole mounting. The 5KP6.0A-TP maintains the full -55°C to 175°C temperature range. Both parts carry active status and ROHS3 compliance.

A5KP6.0A-G (Comchip Technology) offers automotive-grade qualification (AEC-Q101) with identical electrical specifications to 5KP6.0A-G, suitable for applications requiring automotive-level reliability.

Tier 3 - Reduced Power Alternative:

3KP6.0A-TP (Micro Commercial Co) maintains voltage specifications and temperature range but provides 3000W peak pulse power. This substitute is applicable only where circuit design permits reduced power dissipation capacity.

Not Recommended:

5KP6.0A (EIC SEMICONDUCTOR INC.) operates at reduced maximum temperature (-55°C to 150°C), limiting suitability for high-temperature applications.

5KP60A-E3/54 and 5KP60AHE3/73 are 60V standoff devices and are not electrically compatible with 6V protection requirements.

Frequently Asked Questions (FAQ)

Q: Can I use 5KP6.0E3/TR13 as a direct replacement for 5KP6.0?

A: Yes. The 5KP6.0E3/TR13 maintains identical package (P600 axial), voltage specifications (6V standoff), and power rating (5000W). The 11.4V clamping voltage is within acceptable tolerance for 6V protection circuits. This is the recommended primary substitute.

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

A: Both are through-hole axial packages for TVS diodes. P600 and R-6 are mechanically compatible for board-level mounting. The primary difference is the specific package outline and lead diameter. Substitutes using R-6 packages are functionally equivalent when through-hole mounting is required.

Q: Why is 3KP6.0A-TP listed as a substitute if it has lower power rating?

A: The 3KP6.0A-TP maintains all voltage specifications (6V standoff, 10.3V clamping) and temperature range. It is a valid substitute only for applications where peak pulse power requirements do not exceed 3000W. Circuit design review is required before selection.

Q: Is the 5KP6.0A suitable for high-temperature applications?

A: No. The 5KP6.0A operates to 150°C maximum, compared to the original 5KP6.0 specification of 175°C. For applications requiring the full temperature range, select 5KP6.0E3/TR13, 5KP6.0A-TP, or 3KP6.0A-TP.

Q: What does ROHS3 compliance mean for component selection?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. All recommended substitutes carry ROHS3 or equivalent RoHS compliance, ensuring regulatory alignment with modern manufacturing standards.

Q: Can I use automotive-grade 5KP6.0A-G or A5KP6.0A-G in non-automotive applications?

A: Yes. Automotive-grade components meet AEC-Q101 qualification standards, which exceed standard industrial requirements. These parts are fully compatible with general-purpose applications and provide enhanced reliability margins.

Q: What is the significance of the voltage breakdown minimum specification?

A: Voltage breakdown (minimum) defines the threshold at which the TVS diode begins conducting. The original 5KP6.0 specifies 6.32V minimum; substitutes range from 6.32V to 6.67V. This variation is within acceptable tolerance for 6V protection circuits and does not affect functional compatibility.

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