component
MUR420S
Public Made by Adomby adom
amsem Fast Recovery/High Efficiency Diode, SMC. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 3d ago |
| viewers | 3d ago |
| mur420s-etched.glb | 3d ago |
| mur420s-etched.step | 3d ago |
| mur420s-hero.glb | 3d ago |
| mur420s-hero.overlay.json | 3d ago |
| mur420s.glb | 3d ago |
| mur420s.kicad_mod | 3d ago |
| mur420s.kicad_sym | 3d ago |
| mur420s.lbr | 3d ago |
| mur420s.step | 3d ago |
| package.json | 3d ago |
| page.json | 3d ago |
| README.md | 3d ago |
MUR420S
amsem · Fast Recovery/High Efficiency Diode · SMC
MUR420S from amsem, in a SMC. 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 terminal, marked by the color band on the package; the diode is rated for VRRM of 200 V and 4.0 A average forward current. |
| 2 | A | passive | Anode terminal at the end opposite the color band; peak forward voltage is 1.05 V at IF=4.0 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | amsem |
| Package | SMC |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 200 | V | Ta=25℃ | 1 | ||
| Average Forward Current | IF(AV) | 4 | A | Ta=25℃ | 1 | ||
| Surge (Non-repetitive) Forward Current | IFSM | 120 | A | Ta=25℃, 60Hz half-sine wave, 1 cycle | 1 | ||
| Storage Temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Junction Temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Peak Forward Voltage | VFM | 1.05 | V | IF=4.0A | 1 | ||
| Peak Reverse Current | IRRM1 | 3 | μA | VRM=VRRM, Ta=25℃ | 1 | ||
| Peak Reverse Current | IRRM2 | 100 | μA | VRM=VRRM, Ta=125℃ | 1 | ||
| Reverse Recovery Time | Trr | 25 | ns | IF=0.5A, IR=1A, IRR=0.25A | 1 | ||
| Thermal Resistance (Typical) | RθJ-L | 20 | ℃/W | Between junction and ambient | 1 | ||
| Typical Junction Capacitance | Cj | 12 | pF | Measured at 1MHz and applied reverse voltage of 4.0 V DC | 1 | ||
| Non-repetitive Reverse Avalanche Energy | ER | 10 | mJ | I(BR)R = 0.7 A, inductive load | 1 |
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: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
MUR420S - Footprint:
Diode_SMD:D_SMC - 3D model: SMC (KiCad packages3D, STEP)
- 3D model files:
mur420s-etched.step/mur420s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mur420s.step/mur420s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: amsem datasheet (4 pp, sha256
039bd09e6ce55951, 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).