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FR105

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LangJie Diodes - Fast Recovery Rectifiers, DO-41. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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FR105

LangJie · Diodes - Fast Recovery Rectifiers · DO-41

FR105 from LangJie, in a DO-41. 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, the end marked with the color band; the device blocks up to 600 V (VRRM/VDC for FR105) in reverse and conducts 1.0 A average forward current.
2 A passive Anode, the axial lead opposite the color band; maximum forward voltage is 1.3 V at 1.0 A.

Key specifications

Parameter Value
Manufacturer LangJie
Package DO-41
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 Repetitive Peak Reverse Voltage VRRM 600 Volts 1
Maximum RMS Voltage VRMS 420 Volts 1
Maximum DC Blocking Voltage VDC 600 Volts 1
Maximum Average Forward Rectified Current I(AV) 1 Amps TA=100℃ 1
Peak Forward Surge Current IFSM 30 Amps 8.3mS single half sine-wave superimposed on rated load (JEDEC method) 1
Maximum Instantaneous Forward Voltage VF 1.3 Volts at 1.0A 1
Maximum DC Reverse Current IR 5 µA TA = 25℃, rated DC blocking voltage 1
Maximum DC Reverse Current IR 100 µA TA = 125℃, rated DC blocking voltage 1
Maximum Reverse Recovery Time TRR 250 nS If=0.5A, Ir=1.0A, Irr=0.25A 1
Operating and Storage Temperature Range TJ,TSTG -55 150 ℃ 1
Typical Junction Capacitance CJ 15 pF 1.0MHz, applied reverse voltage 4.0 Volts 1
Typical Thermal Resistance RθJA 50 ℃/W Junction to ambient, 0.375″(9.5mm) lead length, PCB mounted 1

CAD (KiCad official)

  • Symbol: FR105
  • Footprint: Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal
  • 3D model: DO-41 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LangJie datasheet (5 pp, sha256 ddba72698d8b0921, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF