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Contents

README

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MBR3045CS

YFW · Schottky Diodes · TO-252

MBR3045CS from YFW, in a TO-252. 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 (15 A per leg average forward current, 45 V maximum repetitive peak reverse voltage).
2 K passive Common cathode of both Schottky legs, also connected to the mounting tab (45 V maximum DC blocking voltage, 30 A total average forward current).
3 A2 passive Anode of the second Schottky diode leg (15 A per leg average forward current, 45 V maximum repetitive peak reverse voltage).

Key specifications

Parameter Value
Manufacturer YFW
Package TO-252
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, IF=10A, TA=25°C (max) VF 0.61 V IF=10A, TA=25°C; pulse test 300 µs, 1% duty (Note2) 1
Forward Voltage Drop, IF=15A, TA=25°C (max) VF 0.7 V IF=15A, TA=25°C; pulse test 300 µs, 1% duty (Note2) 1
Maximum Reverse Current, TA=25°C (max) IR 50 µA VR=45V, TA=25°C 1
Maximum Repetitive Peak Reverse Voltage VRRM 45 V 1
Maximum DC Blocking Voltage VDC 45 V 1
Maximum Average Forward Rectified Current, per leg Io 15 A Per Leg 1
Maximum Average Forward Rectified Current, total Io 30 A Total 1
Peak Forward Surge Current IFSM 300 A 8.3ms Single Half Sine-wave 1
Operating Temperature Range TJ 150 °C 1
Storage Temperature Range TSTG -40 150 °C 1
Typical Thermal Resistance, junction to ambient (RθJA), printed as '2/4' for RθJA/RθJC RθJA 2 °C/W Printed under TO-220AB,TO-263,TO-252,TO-251 (value cell '2/4' shared with TO-220F); positional reading 1
Typical Thermal Resistance, junction to case (RθJC), printed as '2/4' for RθJA/RθJC RθJC 4 °C/W Junction to case per leg mounted on heatsink (Note1); printed under TO-220AB,TO-263,TO-252,TO-251 (value cell '2/4' shared with TO-220F); positional reading 1

CAD (KiCad official)

  • Symbol: MBR3045CS
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: mbr3045cs-etched.step / mbr3045cs-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mbr3045cs.step / mbr3045cs.glb are the bare package body.

Provenance

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

  • Datasheet: YFW datasheet (5 pp, sha256 fbb7584da5282308, 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