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BT137-600E

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WeEn Semiconductors Thyristors (SCR)/Modules, TO-220AB. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

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BT137-600E

WeEn Semiconductors · Thyristors (SCR)/Modules · TO-220AB

BT137-600E from WeEn Semiconductors, 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 4Q triac; the datasheet references the four trigger quadrants to T2 and G.
2 T2 passive Main terminal 2 of the triac; the datasheet uses T2 as the reference for the gate trigger quadrants.
3 G input Gate, used to trigger the triac; the sensitive gate is intended for direct interfacing with microcontrollers, logic ICs and other low power gate trigger circuits.
mb T2 passive Mounting base, internally connected to main terminal 2 (T2) and used as the heatsink-mounted tab.

Key specifications

Parameter Value
Manufacturer WeEn Semiconductors
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 off-state voltage VDRM 600 V 3
RMS on-state current IT(RMS) 8 A full sine wave; Tmb ≤ 102 °C; Fig. 1; Fig. 2; Fig. 3 3
Non-repetitive peak on-state current ITSM 65 A full sine wave; Tj(init) = 25 °C; tp = 20 ms; Fig. 4; Fig. 5 3
Non-repetitive peak on-state current ITSM 71 A full sine wave; Tj(init) = 25 °C; tp = 16.7 ms 3
I2t for fusing I2t 21 A2s tp = 10 ms; SIN 3
Rate of rise of on-state current dIT/dt 50 A/µs IT = 12 A; IG = 0.2 A; dIG/dt = 0.2 A/µs; T2+ G+ 3
Rate of rise of on-state current dIT/dt 10 A/µs IT = 12 A; IG = 0.2 A; dIG/dt = 0.2 A/µs; T2- G+ 3
Peak gate current IGM 2 A 3
Peak gate power PGM 5 W 3
Average gate power PG(AV) 0.5 W over any 20 ms period 3
Storage temperature Tstg -40 150 °C 3
Junction temperature Tj 125 °C 3
Thermal resistance from junction to mounting base Rth(j-mb) 2.4 K/W half cycle; Fig. 6 6
Thermal resistance from junction to mounting base Rth(j-mb) 2 K/W full cycle; Fig. 6 6
Gate trigger current, T2+ G+ IGT 2.5 10 mA VD = 12 V; IT = 0.1 A; T2+ G+; Tj = 25 °C; Fig. 7 7
Gate trigger current, T2+ G- IGT 4 10 mA VD = 12 V; IT = 0.1 A; T2+ G-; Tj = 25 °C; Fig. 7 7
Gate trigger current, T2- G- IGT 5 10 mA VD = 12 V; IT = 0.1 A; T2- G-; Tj = 25 °C; Fig. 7 7
Gate trigger current, T2- G+ IGT 11 25 mA VD = 12 V; IT = 0.1 A; T2- G+; Tj = 25 °C; Fig. 7 7
Latching current, T2+ G+ IL 3 25 mA VD = 12 V; IG = 0.1 A; T2+ G+; Tj = 25 °C; Fig. 8 7
Latching current, T2+ G- IL 14 35 mA VD = 12 V; IG = 0.1 A; T2+ G-; Tj = 25 °C; Fig. 8 7
Latching current, T2- G- IL 3 25 mA VD = 12 V; IG = 0.1 A; T2- G-; Tj = 25 °C; Fig. 8 7
Latching current, T2- G+ IL 4 35 mA VD = 12 V; IG = 0.1 A; T2- G+; Tj = 25 °C; Fig. 8 7
Holding current IH 2.5 20 mA VD = 12 V; Tj = 25 °C; Fig. 9 7
On-state voltage VT 1.3 1.65 V IT = 10 A; Tj = 25 °C; Fig. 10 7
Gate trigger voltage VGT 0.7 1 V VD = 12 V; IT = 0.1 A; Tj = 25 °C; Fig. 11 7
Gate trigger voltage VGT 0.25 0.4 V VD = 400 V; IT = 0.1 A; Tj = 125 °C; Fig. 11 7
Off-state current ID 0.1 0.5 mA VD = 600 V; Tj = 125 °C 7
Thermal resistance from junction to ambient Rth(j-a) 60 K/W in free air 6
Rate of rise of off-state voltage dVD/dt 50 V/µs VDM = 402 V; Tj = 125 °C; (VDM = 67% of VDRM); exponential waveform; gate open circuit 7
Gate-controlled turn-on time tgt 2 µs ITM = 12 A; VD = 600 V; IG = 0.1 A; dIG/dt = 5 A/µs 7

CAD (KiCad official)

  • Symbol: BT137-600E
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220AB (KiCad packages3D, STEP)
  • 3D model files: bt137-600e-etched.step / bt137-600e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bt137-600e.step / bt137-600e.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: WeEn Semiconductors datasheet (13 pp, sha256 287bbde2c83c7c62, retrieved 2026-10-21, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF