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Contents

README

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MBR2045DC-R

YFW · Schottky Diodes · TO-263

MBR2045DC-R 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 the first Schottky diode leg (PIN 1 in the schematic), rated 10 A average forward current per leg and 45 V VRRM.
2 K passive Common cathode of both Schottky diode legs (PIN 2 in the schematic), 20 A total average forward current and 45 V maximum DC blocking voltage.
3 A2 passive Anode of the second Schottky diode leg (PIN 3 in the schematic), rated 10 A average forward current per leg and 45 V VRRM.

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
Maximum Repetitive Peak Reverse Voltage VRRM 45 V Per leg, Ta=25°C 1
Maximum RMS voltage VRMS 45 V Per leg, Ta=25°C 1
Maximum DC Blocking Voltage VDC 45 V Per leg, Ta=25°C 1
Maximum Average Forward Rectified Current Per Leg Io 10 A Per leg 1
Maximum Average Forward Rectified Current Total Io 20 A Total 1
Peak Forward Surge Current IFSM 260 A 8.3ms Single Half Sine-wave 1
Operating Temperature Range TJ -55 150 °C 1
Storage Temperature Range TSTG -55 150 °C 1
Forward Voltage Drop VF 0.56 0.6 V IF=10A, TA=25°C, pulse 300 μs, 1% duty cycle 1
Maximum Reverse Current IR 40 100 uA VR=45V, TA=25°C 1
Typical Thermal Resistance RθJA RθJA 2 °C/W Printed as RθJA/RθJC 2/4; per leg mounted on heatsink 1
Typical Thermal Resistance RθJC RθJC 4 °C/W Printed as RθJA/RθJC 2/4; per leg mounted on heatsink 1
Forward Voltage Drop VF 0.42 V IF=3A, TA=25°C 1
Forward Voltage Drop VF 0.34 V IF=3A, TA=125°C 1
Forward Voltage Drop VF 0.46 V IF=5A, TA=25°C 1
Forward Voltage Drop VF 0.41 V IF=5A, TA=125°C 1
Forward Voltage Drop VF 0.49 V IF=10A, TA=125°C 1
Maximum Reverse Current IR 12 mA VR=45V, TA=125°C 1

CAD (KiCad official)

  • Symbol: MBR2045DC-R
  • Footprint: Package_TO_SOT_SMD:TO-263-2
  • 3D model: TO-263 (KiCad packages3D, STEP)
  • 3D model files: mbr2045dc-r-etched.step / mbr2045dc-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mbr2045dc-r.step / mbr2045dc-r.glb are the bare package body.

Provenance

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

  • Datasheet: YFW datasheet (4 pp, sha256 1d6b055c42791051, retrieved 2026-10-22, 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