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HER108G

LGE · Fast Recovery / High Efficiency Diodes · DO-41

HER108G from LGE, 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, marked by the color band on the molded DO-41 body; blocks up to 1000 V DC (VRRM 1000 V for HER108G).
2 A passive Anode, the lead opposite the color band; carries 1.0 A average forward current at TA = 55 °C with VF of 1.7 V max at 1.0 A for HER108G.

Key specifications

Parameter Value
Manufacturer LGE
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 1000 V 1
Maximum RMS Voltage VRMS 700 V 1
Maximum DC Blocking Voltage VDC 1000 V 1
Maximum Average Forward Rectified Current I(AV) 1 A .375 (9.5mm) lead length, TA=55 °C 1
Peak Forward Surge Current IFSM 30 A 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) 1
Maximum Instantaneous Forward Voltage VF 1.7 V @ 1.0A 1
Maximum DC Reverse Current IR 5 uA TA=25 °C at rated DC blocking voltage 1
Maximum DC Reverse Current IR 150 uA TA=125 °C at rated DC blocking voltage 1
Maximum Reverse Recovery Time Trr 75 nS IF=0.5A, IR=1.0A, IRR=0.25A 1
Operating Temperature Range TJ -65 150 °C 1
Storage Temperature Range TSTG -65 150 °C 1
Typical Junction Capacitance Cj 10 pF 1 MHz, applied reverse voltage 4.0 V DC 1
Typical thermal resistance, junction to ambient RθJA 70 °C/W 1
Typical thermal resistance, junction to case RθJC 15 °C/W 1

CAD (KiCad official)

  • Symbol: HER108G
  • 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: LGE datasheet (2 pp, sha256 ca051c52672492bf, 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