component
MURS440C
Public Made by Adomby adom
LGE Diodes - General Purpose, SMC(DO-214AB). 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
markdownMURS440C
LGE · Diodes - General Purpose · SMC(DO-214AB)
MURS440C from LGE, in a SMC(DO-214AB). 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, marked by the color band on the SMC (DO-214AB) body; the MURS440 blocks up to 400 V DC (VRRM 400 V) and carries 4.0 A average forward current. |
| 2 | A | passive | Anode, the end opposite the color band; maximum instantaneous forward voltage is 1.28 V at 4.0 A for MURS440. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | SMC(DO-214AB) |
| Category | Diodes |
| Pins | 2 |
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 recurrent peak reverse voltage | VRRM | 400 | V | 1 | |||
| Maximum RMS voltage | VRMS | 280 | V | 1 | |||
| Maximum DC blocking voltage | VDC | 400 | V | 1 | |||
| Maximum average forward rectified current | IF(AV) | 4 | A | TA=75 | 1 | ||
| Peak forward surge current | IFSM | 125 | A | 8.3ms single half-sine-wave superimposed on rated load @TJ=125 | 1 | ||
| Maximum instantaneous forward voltage | VF | 1.28 | V | @ 4.0A | 1 | ||
| Maximum reverse current | IR | 10 | µA | at rated DC blocking voltage @TA=25 | 1 | ||
| Maximum reverse current | IR | 100 | µA | at rated DC blocking voltage @TA=125 | 1 | ||
| Maximum reverse recovery time | trr | 50 | ns | IF=0.5A, IR=1A, Irr=0.25A | 1 | ||
| Typical junction capacitance | CJ | 50 | pF | 1.0MHz and applied reverse voltage of 4.0V DC | 1 | ||
| Typical thermal resistance, junction to ambient | RθJA | 20 | °C/W | 1 | |||
| Operating junction temperature range | TJ | -55 | 150 | °C | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
MURS440C - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
murs440c-etched.step/murs440c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);murs440c.step/murs440c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (2 pp, sha256
1244835c302f9fe1, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).