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TYN825
Public Made by Adomby adom
KY Thyristors (SCR)/Modules, TO-263. Pinout cross-checked by two models against the datasheet, 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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README
markdownTYN825
KY · Thyristors (SCR)/Modules · TO-263
TYN825 from KY, in a TO-263. 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 of the SCR; the datasheet symbol labels it K(1). |
| 2 | A | passive | Anode of the SCR, also connected to the tab; the datasheet symbol labels it A(2). |
| 3 | G | input | Gate trigger input; VGT is at most 1.3 V and IGT at most 40 mA at VD=12V, and the datasheet symbol labels it G(3). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KY |
| Package | TO-263 |
| 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 | VDRM | 800 | V | 3 | |||
| R.M.S On-State Current | IT(RMS) | 25 | A | 3 | |||
| Surge On-State Current | ITSM | 300 | A | F=50Hz,tp=10ms | 3 | ||
| I²t for fusing | I²t | 450 | A²s | Tp=10ms | 3 | ||
| Peak Gate Current | IGM | 4 | A | tp=20us Tj=110°C | 3 | ||
| Average Gate Power Dissipation | PG(AV) | 1 | W | Tj=125°C | 3 | ||
| Peak Gate Current | PGM | 5 | W | Tj=125°C | 3 | ||
| Operating Junction Temperature | Tj | -40 | 125 | °C | 3 | ||
| Storage Temperature | TSTG | -40 | 150 | °C | 3 | ||
| Repetitive Peak Off-State Current | IDRM | 10 | uA | Tc=25°C | 3 | ||
| Repetitive Peak Off-State Current | IDRM | 4 | mA | Tc=125°C | 3 | ||
| Repetitive Peak Reverse Current | IRRM | 10 | uA | Tc=25°C | 3 | ||
| Repetitive Peak Reverse Current | IRRM | 4 | mA | Tc=125°C | 3 | ||
| Forward "on" voltage | VTM | 1.55 | V | IT=50A tp=380us | 3 | ||
| Gate nontrigger voltage | VGD | 0.25 | V | VD=VDRM,Tj=125°C, RL=3.3KΩ | 3 | ||
| Latching current | IL | 90 | mA | IG=1.2IGT | 3 | ||
| Holding current | IH | 80 | mA | VD=12V ,IGT=0.1A | 3 | ||
| Gate trigger voltage | VGT | 1.3 | V | VD=12V | 3 | ||
| Gate trigger current | IGT | 40 | mA | VD=12V,IT=0.1A | 3 | ||
| Critical-rate of rise of commutation voltage | dv/dt | 200 | V/us | VD=2/3VDRM,Tj=110°C,RGK=1KΩ | 3 | ||
| Critical-rate of rise of commutation current | di/dt | 50 | A/us | IG=2XIG,tr≤100us,Tj=125°C | 3 |
CAD (KiCad official)
- Symbol:
TYN825 - Footprint:
Package_TO_SOT_SMD:TO-263-2 - 3D model: TO-263 (KiCad packages3D, STEP)
- 3D model files:
tyn825-etched.step/tyn825-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tyn825.step/tyn825.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KY datasheet (7 pp, sha256
ec560678504950d8, retrieved 2026-10-20, 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).