5KP70C Equivalent & Substitute Parts

Part Overview

The 5KP70C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 70V reverse standoff voltage rating and 5000W peak pulse power handling capability in a through-hole P600 axial package. The product is currently obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for continued system support and new designs.

Substiute Parts

5KP70C

Littelfuse Inc.In Stock: 11885KP70C Datasheet

Current PartRFQ

5KP70CA

Diotec SemiconductorIn Stock: 37915KP70CA Datasheet

DirectRFQ

5KP70CE3/TR13

Microchip TechnologyIn Stock: 7905KP70CE3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP70C is determined by strict alignment of the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 70V
• Power - Peak Pulse: 5000W (5kW)
• Mounting Type: Through Hole
• Package / Case: P600, Axial
• Type: Zener, Bidirectional

Substitute parts must maintain the same reverse standoff voltage, peak pulse power rating, and physical package configuration. Variations in voltage clamping characteristics and peak pulse current are permissible within the scope of the same product category and application class, provided the core electrical protection function remains equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both 5KP70CA (Diotec Semiconductor) and 5KP70CE3/TR13 (Microchip Technology) are active product alternatives to the obsolete 5KP70C. Selection between these substitutes should be based on the following criteria:

5KP70CE3/TR13 (Microchip Technology) is the manufacturer-recommended substitute. This part maintains full compliance with ROHS3 standards and matches the original operating temperature range of -55°C ~ 175°C. The clamping voltage of 125V provides additional margin above the original 118.65V specification.

5KP70CA (Diotec Semiconductor) offers equivalent electrical performance with a clamping voltage of 113V, which is lower than the original specification. This part operates within a reduced temperature range of -50°C ~ 175°C. RoHS compliance status is not applicable for this manufacturer variant.

Both parts maintain identical reverse standoff voltage (70V), peak pulse power (5000W), and physical package configuration (P600, Axial, Through Hole). Selection should prioritize compliance requirements and operating temperature constraints specific to the application environment.

Frequently Asked Questions (FAQ)

Q: Can 5KP70CA and 5KP70CE3/TR13 be used interchangeably with 5KP70C?

A: Both parts meet the core substitution criteria: 70V reverse standoff voltage, 5000W peak pulse power, and P600 axial through-hole package. Electrical performance differences exist in clamping voltage and peak pulse current specifications. Application-specific circuit analysis is required to confirm compatibility.

Q: What is the significance of the voltage clamping difference between the three parts?

A: The 5KP70C specifies 118.65V maximum clamping voltage, the 5KP70CA specifies 113V, and the 5KP70CE3/TR13 specifies 125V. These variations represent normal manufacturing tolerances within the TVS diode product category. The clamping voltage determines the maximum transient voltage presented to protected circuitry during suppression events.

Q: Does the operating temperature range difference affect substitution?

A: The 5KP70C and 5KP70CE3/TR13 both operate from -55°C to 175°C. The 5KP70CA operates from -50°C to 175°C. If the application requires operation below -50°C, only the 5KP70CE3/TR13 maintains full compatibility with the original specification.

Q: What packaging format is specified for 5KP70CE3/TR13?

A: The 5KP70CE3/TR13 is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. The physical component remains in the P600 axial package configuration, maintaining mechanical compatibility with through-hole PCB designs.

Q: Are there compliance differences between the substitute parts?

A: The 5KP70CE3/TR13 is ROHS3 compliant and REACH unaffected. The 5KP70CA does not specify RoHS compliance status. If regulatory compliance is a design requirement, the 5KP70CE3/TR13 is the appropriate selection.