component
BTA08-800B
Public Made by Adomby adom
JSMSEMI Thyristors (SCR)/Modules, TO-220AB. 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
markdownBTA08-800B
JSMSEMI · Thyristors (SCR)/Modules · TO-220AB
BTA08-800B from JSMSEMI, in a TO-220AB. 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 1 of the triac; the datasheet gives the device as 800 V repetitive peak off-state/reverse voltage and 8 A RMS on-state current (full sine wave). |
| 2 | T2 | passive | Main terminal 2 of the triac, which is also connected to the non-insulated tab; the datasheet gives the device as 800 V VDRM/VRRM and 8 A IT(RMS). |
| 3 | G | input | Gate trigger input; gate trigger current IGT is 25 mA (C) or 50 mA (B) in quadrants I to III, and 50 mA (C) or 100 mA (B) in quadrant IV, with VGT of 1.3 V at VD=12 V, RL=30 Ω. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | TO-220AB |
| 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 reverse current | IRRM | 0.01 | mA | VR=VRRM, TC=25℃ | 1 | ||
| Repetitive peak reverse current | IRRM | 0.5 | mA | VR=VRRM, Tj=110℃ | 1 | ||
| Repetitive peak off-state current | IDRM | 0.01 | mA | VD=VDRM, TC=25℃ | 1 | ||
| Repetitive peak off-state current | IDRM | 0.5 | mA | VD=VDRM, Tj=110℃ | 1 | ||
| Holding current | IH | 25 | mA | IGT=0.5A, gate open | 1 | ||
| Gate trigger voltage (all quadrants) | VGT | 1.3 | V | VD=12V; RL=30Ω | 1 | ||
| On-state voltage | VTM | 1.55 | V | IT=11A; tp=380μs | 1 | ||
| Repetitive peak off-state voltage | VDRM | 800 | V | Suffix 800B; column assignment to be verified | 1 | ||
| Repetitive peak off-state voltage | VRRM | 800 | V | Suffix 800B; column assignment to be verified | 1 | ||
| RMS on-state current (full sine wave) | IT(RMS) | 8 | A | Full sine wave | 1 | ||
| Non-repetitive peak on-state current | ITSM | 80 | A | tp=20ms | 1 | ||
| Operating junction temperature | Tj | 125 | ℃ | 1 | |||
| Storage temperature | Tstg | -40 | 150 | ℃ | 1 | ||
| Thermal resistance, junction to case | Rth(j-c) | 2.4 | ℃/W | Junction to case; no qualifier printed | 1 | ||
| Thermal resistance, junction to ambient | Rth(j-a) | 60 | ℃/W | Junction to ambient; no qualifier printed | 1 |
CAD (KiCad official)
- Symbol:
BTA08-800B - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220AB (KiCad packages3D, STEP)
- 3D model files:
bta08-800b-etched.step/bta08-800b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bta08-800b.step/bta08-800b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (2 pp, sha256
4ad68d345649f6bf, retrieved 2026-10-13, 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).