component
BYW51-200
Public Made by Adomby adom
LGE Fast Recovery / High Efficiency Diodes, TO-220AB. Pinout reviewed by a person 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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Contents
README
markdownBYW51-200
LGE · Fast Recovery / High Efficiency Diodes · TO-220AB
BYW51-200 from LGE, 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 | A1 | passive | Anode of the first diode leg (10 A per leg, 20 A total), with 200 V maximum repetitive peak reverse voltage. |
| 2 | CASE | passive | Common cathode of both diodes, connected to the case/tab; rated for 200 V maximum DC blocking voltage. |
| 3 | A2 | passive | Anode of the second diode leg (10 A per leg, 20 A total), with 200 V maximum repetitive peak reverse voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | TO-220AB |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum repetitive peak reverse voltage | VRRM | 200 | V | 1 | |||
| Maximum DC blocking voltage | VDC | 200 | V | 1 | |||
| Maximum RMS voltage | VRWS | 140 | V | 1 | |||
| Maximum average forward rectified current, total diode | IF(AV) | 20 | A | Tc=120℃, total diode | 1 | ||
| Maximum average forward rectified current, per leg | IF(AV) | 10 | A | Tc=120℃, per leg | 1 | ||
| Peak forward surge current | IFSM | 100 | A | 8.3ms half-sine-wave | 1 | ||
| I2t rating for fusing | I2t | 41.5 | A2s | t<8.3ms | 1 | ||
| Junction temperature | TJ | 150 | ℃ | 1 | |||
| Storage temperature range | TSTG | -55 | 150 | ℃ | 1 | ||
| Typical thermal resistance, junction to ambient | RΘJA | 60 | ℃/W | 1 | |||
| Typical thermal resistance, junction to case | RΘJC | 3 | ℃/W | 1 | |||
| Breakdown voltage per diode | VBR | 200 | V | IR=0.01mA | 2 | ||
| Instantaneous forward voltage at 25℃ | VF | 0.975 | V | IF=10.0A, per leg, TA=25℃ | 2 | ||
| Instantaneous forward voltage at 100℃ | VF | 0.895 | V | IF=10.0A, per leg, TA=100℃ | 2 | ||
| Maximum DC reverse current at 25℃ | IR | 10 | μA | Rated DC blocking voltage, TA=25℃ | 2 | ||
| Maximum DC reverse current at 100℃ | IR | 1000 | μA | Rated DC blocking voltage, TA=100℃ | 2 | ||
| Reverse recovery time | trr | 25 | ns | IF=0.5A, IR=1.0A, IRR=0.25A | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | ◇ Terminals:Matte Tin Finish. Solderable per MIL-STD-202 Method 208 | 1 |
CAD (KiCad official)
- Symbol:
BYW51-200 - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220AB (KiCad packages3D, STEP)
- 3D model files:
byw51-200-etched.step/byw51-200-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);byw51-200.step/byw51-200.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (4 pp, sha256
4b337aadf130d5fb, 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).