component
K2401GRP
Public Made by Adomby adom
Littelfuse Thyristor Surge Suppressors (TSS), DO-15. 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
markdownK2401GRP
Littelfuse · Thyristor Surge Suppressors (TSS) · DO-15
K2401GRP from Littelfuse, in a DO-15. 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DO-15 |
| Category | TVS/Fuse/Board Level 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 |
|---|---|---|---|---|---|---|---|
| Breakover/Trigger Voltage | VBO | 220 | 250 | V | 1 | ||
| Repetitive Peak Off-State Voltage | VDRM | 190 | V | 1 | |||
| Storage Temperature Range | TS | -40 | 125 | °C | 1 | ||
| Max Operating Junction Temperature | TJ | -40 | 125 | °C | 1 | ||
| On-State RMS Current | IT(RMS) | 1 | A | TJ < 125ºC, 50/60Hz Sine Wave | 1 | ||
| Dynamic Holding Current | IH | 160 | mA | R=100 Ω (printed as 'R=100 8'), 50/60Hz Sine Wave | 1 | ||
| Switching Resistance | RS | 100 | Ω | 50/60Hz Sine Wave | 1 | ||
| Commutation Time | tCOMM | 100 | μsec | TJ < 125ºC, see test circuit and waveform in Figure 9 | 1 | ||
| Breakover Current | IBO | 10 | uA | 50/60Hz Sine Wave | 1 | ||
| Non-repetitive 1 cycle On-State peak value (60Hz) | ITSM | 20 | A | 60Hz, 1 cycle | 1 | ||
| Non-repetitive 1 cycle On-State peak value (50Hz) | ITSM | 16.7 | A | 50Hz, 1 cycle | 1 | ||
| Critical Rate of Rise of On-State Current | di/dt | 150 | A/μsec | 1 | |||
| Critical Rate of Rise of Off-State Voltage | dv/dt | 1500 | V/μsec | 1 | |||
| Thermal Resistance Junction to lead | RRJL | 18 | °C/W | 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 | copper alloy | tin | with tin-plated copper alloy leads. | 1 |
CAD (KiCad official)
- Symbol:
K2401GRP - Footprint:
Diode_THT:D_DO-15_P12.70mm_Horizontal - 3D model: DO-15 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (6 pp, sha256
3d7c8c0c33d3f176, retrieved 2026-10-29, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).