component
BT138
Public Made by Adomby adom
JUXING Thyristors (SCR)/Modules, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 2d ago |
| viewers | 2d ago |
| bt138-etched.glb | 2d ago |
| bt138-etched.step | 2d ago |
| bt138-hero.glb | 2d ago |
| bt138-hero.overlay.json | 2d ago |
| bt138.glb | 2d ago |
| bt138.kicad_mod | 2d ago |
| bt138.kicad_sym | 2d ago |
| bt138.lbr | 2d ago |
| bt138.step | 2d ago |
| package.json | 2d ago |
| page.json | 2d ago |
| README.md | 2d ago |
BT138
JUXING · Thyristors (SCR)/Modules · TO-252
BT138 from JUXING, 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 | T1 | passive | Main terminal T1 of the triac (diagram shows T1 opposite T2); rated 10 A RMS on-state current, 600 V/800 V VDRM/VRRM. |
| 2 | T2 | passive | Main terminal T2 of the triac, brought out as the centre lead and the mounting tab; rated 10 A RMS on-state current, 600 V/800 V VDRM/VRRM. |
| 3 | G | input | Gate trigger input; IGT max 50 mA in quadrants I, II and III and 100 mA in quadrant IV (VD=12 V, RL=100 Ω), VGT max 1.5 V, peak gate current 4 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JUXING |
| 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 (600E variant) | VDRM/VRRM | 600 | V | 600E column | 1 | ||
| Repetitive peak off-state voltage (800E variant) | VDRM/VRRM | 800 | V | 800E column | 1 | ||
| RMS on-state current | IT(RMS) | 10 | A | full sine wave | 1 | ||
| Non repetitive surge peak on-state current | ITSM | 60 | A | full sine wave, Tj=25℃, t=20ms | 1 | ||
| Peak gate current | IGM | 4 | A | 1 | |||
| I2t for fusing | I2t | 18 | A2S | t=10ms | 1 | ||
| Average gate power dissipation | PG(AV) | 0.5 | W | Tj=125℃ | 1 | ||
| Peak on-state voltage drop | VTM | 1.5 | V | ITM=12A | 1 | ||
| Repetitive rate of rise of on-state current after triggering | dit/dt | 100 | A/µs | after triggering | 1 | ||
| Junction temperature | Tj | -40 | 125 | ℃ | 1 | ||
| Storage temperature | Tstg | -40 | 150 | ℃ | 1 | ||
| Gate trigger current (quadrants I, II, III) | IGT | 50 | mA | VD=12V;RL=100Ω; quadrants Ⅰ Ⅱ Ⅲ | 2 | ||
| Gate trigger current (quadrant IV) | IGT | 100 | mA | VD=12V;RL=100Ω; quadrant Ⅳ | 2 | ||
| Gate trigger voltage (quadrants I, II, III) | VGT | 1.5 | V | VD=12V;RL=100Ω; quadrants Ⅰ Ⅱ Ⅲ | 2 | ||
| Non-triggering gate voltage | VGD | 0.2 | V | Tj=125℃ | 2 | ||
| Holding current | IH | 60 | mA | IT=0.5A | 2 | ||
| Thyristor holds up current (quadrants I, II, III) | IL | 60 | mA | IG=1.2IGT; quadrants Ⅰ Ⅱ Ⅲ | 2 | ||
| Thyristor holds up current (quadrant IV) | IL | 100 | mA | IG=1.2IGT; quadrant Ⅳ | 2 | ||
| Critical rise rate of off-state voltage | dV/dt | 500 | V/µs | VD=67%VDRM(max); Tj=125℃ | 2 | ||
| On state threshold voltage | VTO | 0.92 | V | Tj=125℃ | 1 |
CAD (KiCad official)
- Symbol:
BT138 - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
bt138-etched.step/bt138-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bt138.step/bt138.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JUXING datasheet (3 pp, sha256
81e439d655907bef, retrieved 2026-11-05, 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).