component
BTA26
Public Made by Adomby adom
WEIDA TRIACs, 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
markdownBTA26
WEIDA · TRIACs · TO-220
BTA26 from WEIDA, 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 1 of the triac, the current return side; the device is rated for 25 A IT(RMS) and VDRM/VRRM of 600/800/1200/1600 V. |
| 2 | T2 | passive | Main terminal 2 of the triac; the insulated TO-220A package isolates all three terminals from the heatsink with a rated insulation voltage of 2500 VRMS. |
| 3 | G | input | Gate trigger terminal; gate trigger current IGT is max 35 mA (CW) or 50 mA (BW) at VD=12 V, RL=33 Ω, with peak gate current IGM of 4 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WEIDA |
| Package | TO-220 |
| Category | Triode/MOS Tube/Transistor |
| 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 |
|---|---|---|---|---|---|---|---|
| On-state voltage | VTM | 1.5 | V | ITM=35A tp=380μs Tj=25℃ | 3 | ||
| Off-state/reverse leakage current | IDRM/IRRM | 10 | µA | VDRM=VRRM, Tj=25℃ | 3 | ||
| Off-state/reverse leakage current | IDRM/IRRM | 3 | mA | VDRM=VRRM, Tj=125℃ | 3 | ||
| Gate non-trigger voltage | VGD | 0.2 | V | VD=VDRM, Tj=125℃, RL=3.3kΩ | 2 | ||
| Storage junction temperature range | Tstg | -40 | 150 | ℃ | 1 | ||
| Operating junction temperature range | Tj | -40 | 125 | ℃ | 1 | ||
| RMS on-state current | IT(RMS) | 25 | A | 1 | |||
| Non repetitive surge peak on-state current | ITSM | 250 | A | full cycle, F=50Hz | 1 | ||
| I2t value for fusing | I2t | 340 | A2s | tp=10ms | 1 | ||
| Critical rate of rise of on-state current | dI/dt | 50 | A/μs | IG=2×IGT | 1 | ||
| Peak gate current | IGM | 4 | A | 2 | |||
| Average gate power dissipation | PG(AV) | 1 | W | 2 | |||
| Peak gate power | PGM | 10 | W | 2 | |||
| Thermal resistance junction to case (AC), TO-220A (Ins) | Rth(j-c) | 1.5 | ℃/W | junction to case(AC), TO-220A(Ins) | 3 |
CAD (KiCad official)
- Symbol:
BTA26 - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files:
bta26-etched.step/bta26-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bta26.step/bta26.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WEIDA datasheet (8 pp, sha256
ca8b081d3f037dec, retrieved 2026-10-27, 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).