component
5KP28A-B
Public Made by Adomby adom
Littelfuse ESD And Surge Protection (TVS/ESD), P600. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdown5KP28A-B
Littelfuse · ESD And Surge Protection (TVS/ESD) · P600
5KP28A-B from Littelfuse, in a P600. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | P600 |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage VBR @ IT | VBR | 31.1 | 34.4 | V | @ IT = 5 mA | 2 | |
| Maximum Clamping Voltage VC @ IPP | VC | 45.4 | V | @ IPP = 112.3 A | 2 | ||
| Maximum Peak Pulse Current IPP | IPP | 112.3 | A | 2 | |||
| Maximum Reverse Leakage Current IR | IR | 2 | µA | @ VR = 28.0 V | 2 | ||
| VBR Voltage Tolerance (uni-directional, A suffix) | VBR | -5 | 5 | % | Type code A: uni-directional, 5% VBR voltage tolerance | 6 | |
| Maximum Instantaneous Forward Voltage | VF | 3.5 | V | @ 100 A, unidirectional only (5.0 V max for stacked-die parts) | 1 | ||
| Peak Pulse Power Dissipation | PPPM | 5 | kW | 10/1000 µs test waveform (Fig.2), non-repetitive (Note 1) | 1 | ||
| Steady State Power Dissipation | PD | 8 | W | Infinite heat sink at TL = 75 ºC | 1 | ||
| Peak Forward Surge Current | IFSM | 400 | A | 8.3 ms single half sine wave, unidirectional only (Note 2) | 1 | ||
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 | 175 | °C | 1 | ||
| Temperature Coefficient of VBR | αT | 0.1 | % | VBR @ TJ = VBR@25°C × (1+αT × (TJ − 25)), typical value | 1 | ||
| Typical Thermal Resistance Junction to Lead | RθJL | 8 | °C/W | Typical | 1 | ||
| Typical Thermal Resistance Junction to Ambient | RθJA | 40 | °C/W | Typical | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | • Matte tin lead-free plated • Halogen free and RoHS | 1 |
CAD (KiCad official)
- Symbol:
5KP28A-B - Footprint:
Diode_THT:D_P600_R-6_P20.00mm_Horizontal - 3D model: P600 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (6 pp, sha256
a0c9c30e73a4d50e, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).