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Littelfuse Inc. 5KP4 Series

27 variants · Littelfuse Inc.

About the Littelfuse Inc. 5KP4 Series

The Littelfuse Inc. 5KP4 Series series groups 27 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common applications of General Purpose, capacitance @ frequency of - and case of P600, Axial. Variants differ by current - peak pulse (10/1000μs), operating temperature and package, so you can match the exact current - peak pulse (10/1000μs) your application requires using the selection guide below. The range mixes active and legacy part numbers, so you can source both current Littelfuse Inc. 5KP4 Series variants and discontinued ones from a single page.

Select a variant by

Current - peak pulse (10/1000μs)
- · 70.2A · 73.5A · 79.1A
Operating temperature
-55°C ~ 175°C (TA) · -55°C ~ 175°C (TJ) · -55°C~175°C(TA) · -55°C~175°C(TJ)
Package
Tape & Reel (TR) · Tape & Reel (TR) Cut Tape (CT) · Tape & Reel (TR); Cut Tape (CT)
Voltage - breakdown
44.4V · 47.39V · 47.8V · 50V
Voltage - clamping (Max) @ ipp
64.5V · 69.4V · 72.7V · 76.34V
Voltage - reverse standoff
40V · 43V · 45V

Shared specifications

Applications
General Purpose
Capacitance @ frequency
-
Case
P600, Axial
Mounting
Through Hole
Power - peak pulse
5000W (5kW)
Power line protection
No
Type
Zener

Variant comparison

Parameter5KP40A5KP40A-HRA5KP40CA5KP40CA-HRA5KP43A5KP43A-HRA
Current - peak pulse (10/1000μs)79.1A79.1A79.1A79.1A73.5A73.5A
Operating temperature-55°C ~ 175°C (TJ)-55°C ~ 175°C (TA)-55°C~175°C(TJ)-55°C~175°C(TA)-55°C~175°C(TJ)-55°C ~ 175°C (TA)
PackageTape & Reel (TR) Cut Tape (CT)Tape & Reel (TR)Tape & Reel (TR); Cut Tape (CT)Tape & Reel (TR)Tape & Reel (TR); Cut Tape (CT)Tape & Reel (TR)
Voltage - breakdown44.4V44.4V44.4V44.4V47.8V47.8V
Voltage - clamping (Max) @ ipp64.5V64.5V64.5V64.5V69.4V69.4V
Voltage - reverse standoff40V40V40V40V43V43V

Request a quote on any Littelfuse Inc. 5KP4 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

All variants