component
BT151-650R
Public Made by Adomby adom
KY Thyristors (SCR)/Modules, 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
markdownBT151-650R
KY · Thyristors (SCR)/Modules · TO-220
BT151-650R from KY, 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 | K | passive | Cathode of the SCR, the main-current return terminal (pin 1 of the TO-220C). |
| 2 | A | passive | Anode of the SCR, the main-current terminal (pin 2), which is also connected to the tab; the datasheet gives VDRM/VRRM of 600 V for BT151 and IT(RMS) of 12 A. |
| 3 | G | input | Gate trigger input (pin 3) with VGT ≤1.0 V and IGT ≤20 mA at VD=12 V, IT=0.1 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KY |
| Package | TO-220 |
| 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 / VRRM) | VDRM, VRRM | 600 | V | 3 | |||
| Repetitive Peak Off-State Current | IDRM | 10 | uA | Tc=25°C | 3 | ||
| Repetitive Peak Off-State Current | IDRM | 1 | mA | Tc=125°C | 3 | ||
| Repetitive Peak Reverse Current | IRRM | 10 | uA | Tc=25°C | 3 | ||
| Repetitive Peak Reverse Current | IRRM | 1 | mA | Tc=125°C | 3 | ||
| Forward on voltage | VTM | 1.7 | V | IT=23A, tp=380us | 3 | ||
| Gate trigger voltage | VGT | 1 | V | VD=12V, RL=30Ω | 3 | ||
| Critical rate of rise of on-state current | di/dt | 50 | A/us | Tj=125°C, IG=2xIGT, tr≤100ns | 3 | ||
| Gate trigger current | IGT | 20 | mA | VD=12V, IT=0.1A | 3 | ||
| Latching current | IL | 40 | mA | IG=1.2IGT | 3 | ||
| Holding current | IH | 30 | mA | IT=0.1A | 3 | ||
| Gate non-trigger voltage | VGD | 0.25 | V | VD=VDRM, TJ=125°C, RL=3.3KΩ, RGK=1KΩ | 3 | ||
| Critical-rate of rise of commutation voltage | dv/dt | 200 | V/us | TJ=125°C, VD=2/3VDRM, Gate open circuit | 3 | ||
| R.M.S On-State Current | IT(RMS) | 12 | A | Tc=105°C | 3 | ||
| On-state average current | IT(AV) | 7.5 | A | TC=105°C | 3 | ||
| Surge On-State Current | ITSM | 120 | A | Tp=10ms | 3 | ||
| Surge On-State Current | ITSM | 132 | A | tp=8.3ms | 3 | ||
| I²t for fusing | I²t | 75 | A²s | Tp=10ms | 3 | ||
| Peak Gate Power Dissipation | PGM | 2 | W | Tj=125°C | 3 | ||
| Average Gate Power Dissipation | PG(AV) | 0.5 | W | Tj=125°C | 3 | ||
| Operating Junction Temperature | Tj | -40 | 125 | °C | 3 | ||
| Storage Temperature | TSTG | -40 | 150 | °C | 3 | ||
| Thermal resistance junction to case | Rth(j-c) | 1 | °C/W | 3 | |||
| Thermal resistance junction to ambient | Rth(j-a) | 50 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
BT151-650R - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files:
bt151-650r-etched.step/bt151-650r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bt151-650r.step/bt151-650r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KY datasheet (7 pp, sha256
a18845b32d6329a1, retrieved 2026-10-19, 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).