component
BT138S-600E
Public Made by Adomby adom
MSKSEMI Thyristors (SCR)/Modules, TO-252. 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
markdownBT138S-600E
MSKSEMI · Thyristors (SCR)/Modules · TO-252
BT138S-600E from MSKSEMI, 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 1 (MT1) of the triac; the datasheet's absolute maximum ratings for this device are VDRM/VRRM 600 V (BT138S-600E) and IT(RMS) 12 A at TC=95℃, which apply between T1 and T2. |
| 2 | T2 | passive | Main terminal 2 (MT2) of the triac; the datasheet's absolute maximum ratings for this device are VDRM/VRRM 600 V (BT138S-600E) and IT(RMS) 12 A at TC=95℃, which apply between T1 and T2. |
| 3 | G | input | Gate terminal; limits stated are peak gate current IGM 2 A, average gate power PG(AV) 0.5 W, peak gate power PGM 5 W, and gate trigger current IGT max 10 mA (Quadrants I-II-III) / 25 mA (Quadrant IV) with VGT max 1.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Storage junction temperature range | Tstg | -40 | 150 | ℃ | 2 | ||
| Operating junction temperature range | Tj | -40 | 125 | ℃ | 2 | ||
| Repetitive peak off-state voltage | VDRM | 600 | V | Tj=25℃ | 2 | ||
| Repetitive peak reverse voltage | VRRM | 600 | V | Tj=25℃ | 2 | ||
| RMS on-state current | IT(RMS) | 12 | A | TC=95℃ | 2 | ||
| Non repetitive surge peak on-state current | ITSM | 95 | A | full cycle, F=50Hz | 2 | ||
| I2t value for fusing | I2t | 45 | A2s | tp=10ms | 2 | ||
| Critical rate of rise of on-state current, quadrant I-II-III | dI/dt | 50 | A/μs | IG=2×IGT | 2 | ||
| Critical rate of rise of on-state current, quadrant IV | dI/dt | 10 | A/μs | IG=2×IGT | 2 | ||
| Peak gate current | IGM | 2 | A | 2 | |||
| Average gate power dissipation | PG(AV) | 0.5 | W | 2 | |||
| Peak gate power | PGM | 5 | W | 2 | |||
| Gate trigger current, quadrant I-II-III | IGT | 10 | mA | VD=12V RL=33Ω | 3 | ||
| Gate trigger current, quadrant IV | IGT | 25 | mA | VD=12V RL=33Ω | 3 | ||
| Gate trigger voltage, all quadrants | VGT | 1.5 | V | 3 | |||
| Gate non-trigger voltage, all quadrants | VGD | 0.2 | V | VD=VDRM Tj=125℃ RL=3.3KΩ | 3 | ||
| Latching current, quadrant I-III | IL | 30 | mA | IG=1.2IGT | 3 | ||
| Latching current, quadrant II-IV | IL | 40 | mA | IG=1.2IGT | 3 | ||
| Holding current | IH | 25 | mA | IT=100mA | 3 | ||
| Critical rate of rise of off-state voltage | dV/dt | 50 | V/μs | VD=2/3VDRM Gate Open Tj=125℃ | 3 | ||
| On-state voltage | VTM | 1.6 | V | ITM=15A tp=380μs Tj=25℃ | 3 | ||
| Repetitive peak off-state current | IDRM | 5 | μA | VD=VDRM VR=VRRM Tj=25℃ | 3 | ||
| Repetitive peak reverse current | IRRM | 1 | mA | VD=VDRM VR=VRRM Tj=125℃ | 3 | ||
| Thermal resistance junction to case (AC) | Rth(j-c) | 1.7 | ℃/W | 3 | |||
| Thermal resistance junction to ambient | Rth(j-a) | 70 | ℃/W | 3 |
CAD (KiCad official)
- Symbol:
BT138S-600E - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
bt138s-600e-etched.step/bt138s-600e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bt138s-600e.step/bt138s-600e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (6 pp, sha256
d3a4575decdc37af, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).