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HER204

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LangJie Fast Recovery / High Efficiency Diodes, DO-15. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HER204

LangJie · Fast Recovery / High Efficiency Diodes · DO-15

HER204 from LangJie, in a DO-15. 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 case; the datasheet states 'Color band denotes cathode end'.
2 A passive Anode, the axial lead at the end opposite the color band; the datasheet gives no other pin detail.

Key specifications

Parameter Value
Manufacturer LangJie
Package DO-15
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 Instantaneous Forward Voltage VF 1.3 V at 2.0A 1
Maximum DC Reverse Current IR 5 µA at Rated DC Blocking Voltage, TA=25℃ 1
Maximum DC Reverse Current IR 100 µA at Rated DC Blocking Voltage, TA=100℃ 1
Maximum Reverse Recovery Time TRR 50 nS If=0.5A, Ir=1.0A, Irr=0.25A 1
Maximum Repetitive Peak Reverse Voltage VRRM 300 Volts 1
Maximum RMS Voltage VRMS 210 Volts 1
Maximum DC Blocking Voltage VDC 300 Volts 1
Maximum Average Forward Rectified Current I(AV) 2 Amps TA=75℃ 1
Peak Forward Surge Current IFSM 60 Amps 8.3mS single half sine-wave superimposed on rated load (JEDEC method) 1
Operating and Storage Temperature Range TJ,TSTG -55 150 ℃ 1
Typical Thermal Resistance Junction to Ambient RθJA 50 ℃/W 0.375″(9.5mm) lead length, PCB mounted 1
Typical Junction Capacitance CJ 30 pF 1.0MHz, applied reverse voltage 4.0 Volts 1

CAD (KiCad official)

  • Symbol: HER204
  • Footprint: Diode_THT:D_DO-15_P12.70mm_Horizontal
  • 3D model: DO-15 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LangJie datasheet (4 pp, sha256 8a9e02994c7373e8, 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