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Contents

README

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UF4006

EIC Semicon · High Effic Rectifier · DO-41

UF4006 from EIC Semicon, 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 by the color band; axial lead of the DO-41 package (UF4006: VRRM 800 V, IF(AV) 1.0 A).
2 A passive Anode, the axial lead opposite the color band; forward current up to 1.0 A average at Ta = 55 °C with 0.375" lead length.

Key specifications

Parameter Value
Manufacturer EIC Semicon
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 Recurrent Peak Reverse Voltage VRRM 800 V 1
Maximum RMS Voltage VRMS 560 V 1
Maximum DC Blocking Voltage VDC 800 V 1
Maximum Average Forward Current IF(AV) 1 A 0.375"(9.5mm) lead length, Ta = 55 °C 1
Maximum Peak Forward Surge Current IFSM 30 A 8.3ms single half sine wave superimposed on rated load (JEDEC Method) 1
Maximum Forward Voltage VF 1.7 V IF = 1.0 A 1
Maximum DC Reverse Current IR 10 μA Ta = 25 °C, at rated DC blocking voltage 1
Maximum DC Reverse Current IR(H) 50 μA Ta = 100 °C, at rated DC blocking voltage 1
Maximum Reverse Recovery Time Trr 75 ns IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A 1
Junction Temperature Range TJ -65 150 °C 1
Storage Temperature Range TSTG -65 150 °C 1
Typical Junction Capacitance CJ 17 pf 1.0 MHz, applied reverse voltage 4.0 VDC 1
Typical Thermal Resistance, Junction to Ambient RθJA 60 °C/W 0.375", 9.5 mm lead lengths 1

CAD (KiCad official)

  • Symbol: UF4006
  • 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: EIC Semicon datasheet (2 pp, sha256 a13c45622c627920, retrieved 2026-10-22, 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