component
BTA24-800B
Public Made by Adomby adom
KY Thyristors (SCR)/Modules, TO-220. 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
markdownBTA24-800B
KY · Thyristors (SCR)/Modules · TO-220
BTA24-800B from KY, in a TO-220. 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 | T1 | passive | Main terminal T1 of the triac, shown as T1(1) in the symbol on the datasheet. |
| 2 | T2 | passive | Main terminal T2 of the triac, shown as T2(2) in the symbol. The part is rated for 800 V VDRM/VRRM and 25 A IT(RMS). |
| 3 | G | input | Gate trigger input, shown as G(3) in the symbol. VGT is ≤1.5 V at VD=12 V, RL=30 Ω. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KY |
| Package | TO-220 |
| 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 (BTA24-800) | VDRM | 800 | V | 3 | |||
| Repetitive Peak Reverse Voltage (BTA24-800) | VRRM | 800 | V | 3 | |||
| R.M.S On-State Current | IT(RMS) | 25 | A | Tc=110°C | 3 | ||
| Surge On-State Current | ITSM | 280 | A | tp=16.7ms | 3 | ||
| Surge On-State Current | ITSM | 300 | A | tp=10ms | 3 | ||
| I²t for fusing | I²t | 520 | A²s | Tp=10ms | 3 | ||
| Average Gate Power Dissipation | PG(AV) | 1 | W | Tj=125°C | 3 | ||
| Peak Gate Current | IGM | 6 | A | 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 | 5 | uA | Tj=25°C | 3 | ||
| Repetitive Peak Off-State Current | IDRM | 3 | mA | Tj=125°C | 3 | ||
| Repetitive Peak Reverse Current | IRRM | 5 | uA | Tj=25°C | 3 | ||
| Repetitive Peak Reverse Current | IRRM | 3 | mA | Tj=125°C | 3 | ||
| Forward on voltage | VTM | 1.55 | V | IT=35A tp=380us | 3 | ||
| Gate trigger voltage | VGT | 1.5 | V | VD=12V, RL=30Ω | 3 | ||
| Critical rate of rise of on-state current (quadrants I, II, III) | di/dt | 50 | A/us | F=120Hz, Tj=125°C, IG=2xIGT, tr≤100ns | 3 | ||
| Critical rate of rise of on-state current (quadrant IV) | di/dt | 10 | A/us | F=120Hz, Tj=125°C, IG=2xIGT, tr≤100ns | 3 | ||
| Gate trigger current (quadrants I, II, III) | IGT | 50 | mA | VD=12V, RL=30Ω | 3 | ||
| Gate trigger current (quadrant IV) | IGT | 100 | mA | VD=12V, RL=30Ω | 3 | ||
| Holding current | IH | 80 | mA | IT=0.2A | 3 | ||
| Gate non-trigger voltage | VDG | 0.2 | V | VD=VDRM, TJ=125°C | 3 | ||
| Critical rate of rise of commutation voltage | dv/dt | 500 | V/us | TJ=125°C, VD=2/3VDRM, gate open circuit | 3 |
CAD (KiCad official)
- Symbol:
BTA24-800B - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files:
bta24-800b-etched.step/bta24-800b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bta24-800b.step/bta24-800b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KY datasheet (7 pp, sha256
ca7037f9aa9ae8b1, 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).