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SRM20L300DC

Public Made by Adom

by adom

YFW Schottky Diodes, TO-263. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SRM20L300DC

YFW · Schottky Diodes · TO-263

SRM20L300DC from YFW, in a TO-263. 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 diode leg 1, rated 10 A average forward current per leg and 300 V repetitive peak reverse voltage.
2 K passive Common cathode of both diode legs (20 A total average forward current), also connected to the mounting tab.
3 A2 passive Anode of diode leg 2, rated 10 A average forward current per leg and 300 V repetitive peak reverse voltage.

Key specifications

Parameter Value
Manufacturer YFW
Package TO-263
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
Forward Voltage Drop VF 0.77 0.83 V IF=3A, TA=25°C 1
Forward Voltage Drop VF 0.92 0.98 V IF=10A, TA=25°C 1
Maximum Reverse Current IR 0.2 2 µA VR=300V, TA=25°C 1
Maximum Repetitive Peak Reverse Voltage VRRM 300 V Ta=25°C 1
Working Peak Reverse Voltage VRWM 300 V Ta=25°C 1
Maximum DC Blocking Voltage VDC 300 V Ta=25°C 1
Maximum Average Forward Rectified Current (Per Leg) IO 10 A Per leg, Ta=25°C 1
Maximum Average Forward Rectified Current (Total) IO 20 A Total, Ta=25°C 1
Peak Forward Surge Current IFSM 180 A 8.3 ms single half sine-wave, superimposed on rated load (JEDEC method), Ta=25°C 1
Operating Temperature Range TJ -50 150 °C Ta=25°C 1
Storage Temperature Range TSTG -50 150 °C Ta=25°C 1
Forward Voltage Drop VF 0.65 V IF=3A, TA=125°C 1
Forward Voltage Drop VF 0.82 V IF=5A, TA=25°C 1
Forward Voltage Drop VF 0.69 V IF=5A, TA=125°C 1
Forward Voltage Drop VF 0.78 V IF=10A, TA=125°C 1
Maximum Reverse Current IR 20 µA VR=300V, TA=125°C 1
Typical Thermal Resistance, Junction to Case (TO-220AB, TO-263) RθJC 2 °C/W Junction to case per leg mounted on heatsink 1

CAD (KiCad official)

  • Symbol: SRM20L300DC
  • Footprint: Package_TO_SOT_SMD:TO-263-2
  • 3D model: TO-263 (KiCad packages3D, STEP)
  • 3D model files: srm20l300dc-etched.step / srm20l300dc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); srm20l300dc.step / srm20l300dc.glb are the bare package body.

Provenance

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

  • Datasheet: YFW datasheet (3 pp, sha256 3c2e30ad91d97d68, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF