component
X0405MF-252
Public Made by Adomby adom
KY Thyristors (SCR)/Modules, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownX0405MF-252
KY · Thyristors (SCR)/Modules · TO-252
X0405MF-252 from KY, in a TO-252. 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 (K) of the SCR; the datasheet symbol labels this terminal K(1). |
| 2 | A | passive | Anode (A) of the SCR, also the tab; the TO-252 drawing marks the tab as 2 and the symbol labels it A(2), with VDRM/VRRM of 600V. |
| 3 | G | input | Gate (G) trigger input; the symbol labels it G(3), with VGT ≤0.8V and IGT ≤120uA at VD=12V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KY |
| Package | TO-252 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Off-State Voltage (X0405 column) | VDRM/VRRM | 600 | V | 3 | |||
| Repetitive Peak Off-State Current | IDRM | 5 | uA | Tc=25°C | 3 | ||
| Repetitive Peak Off-State Current | IDRM | 100 | uA | Tc=110°C | 3 | ||
| Repetitive Peak Reverse Current | IRRM | 5 | uA | Tc=25°C | 3 | ||
| Repetitive Peak Reverse Current | IRRM | 100 | uA | Tc=110°C | 3 | ||
| Forward on voltage | VTM | 1.7 | V | IT=8A tp=380us | 3 | ||
| Gate nontrigger voltage | VGD | 0.2 | V | VD=VDRM,Tj=110°C,RGK=1KΩ,RL=3.3KΩ | 3 | ||
| Latching current | IL | 6 | mA | IG=1.2IGT | 3 | ||
| Holding current | IH | 5 | mA | VD=12V,IGT=0.1A | 3 | ||
| Gate trigger voltage | VGT | 0.8 | V | VD=12V | 3 | ||
| Gate trigger current | IGT | 120 | uA | VD=12V,IT=0.1A | 3 | ||
| Critical-rate of rise of commutation voltage | dv/dt | 10 | V/us | VD=2/3VDRM,Tj=110°C,RGK=1KΩ | 3 | ||
| R.M.S On-State Current | IT(RMS) | 4 | A | 3 | |||
| Average On-State Current | IT(AV) | 2.5 | A | 3 | |||
| Surge On-State Current | ITSM | 30 | A | F=50Hz,tp=10ms | 3 | ||
| I²t for fusing | I²t | 4.5 | A²s | Tp=10ms | 3 | ||
| Peak Gate Current | IGM | 1.2 | A | tp=20uS,Tj=110°C | 3 | ||
| Average Gate Power Dissipation | PG(AV) | 0.2 | W | Tj=110°C | 3 | ||
| Peak Gate Power Dissipation | PGM | 1 | W | tp=20uS,Tj=110°C | 3 | ||
| Operating Junction Temperature | Tj | -40 | 125 | °C | 3 | ||
| Storage Temperature | TSTG | -40 | 150 | °C | 3 |
CAD (KiCad official)
- Symbol:
X0405MF-252 - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
x0405mf-252-etched.step/x0405mf-252-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);x0405mf-252.step/x0405mf-252.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KY datasheet (7 pp, sha256
09894c153b8714bf, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(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).