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HER303

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GOODWORK Fast Recovery / High Efficiency Diodes, DO-27. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HER303

GOODWORK · Fast Recovery / High Efficiency Diodes · DO-27

HER303 from GOODWORK, in a DO-27. 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 end of the axial rectifier, marked by the color band; HER303 is rated 200 V DC blocking voltage and 3.0 A average forward current.
2 A passive Anode lead of the axial rectifier (opposite the color band); HER303 has 200 V max recurrent peak reverse voltage and 1.3 V max forward voltage at 3.0 A.

Key specifications

Parameter Value
Manufacturer GOODWORK
Package DO-27
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 200 V 1
Maximum RMS Voltage VRMS 140 V 1
Maximum DC Blocking Voltage VDC 200 V 1
Maximum Average Forward Rectified Current IF(AV) 3 A 1
Peak Forward Surge Current IFSM 125 A 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) 1
Maximum Instantaneous Forward Voltage VF 1 V at 3.0A 1
Maximum DC Reverse Current IR 5 µA Ta=25 C, at rated DC blocking voltage 1
Maximum DC Reverse Current IR 200 µA Ta=100 C, at rated DC blocking voltage 1
Maximum Reverse Recovery Time trr 50 nS IF=0.5A, IR=1.0A, IRR=0.25A 1
Operating and Storage Temperature Range TJ, TSTG -65 150 °C 1
Typical Junction Capacitance CJ 70 pF Measured at 1MHz and applied reverse voltage of 4.0V D.C. 1

CAD (KiCad official)

  • Symbol: HER303
  • Footprint: Diode_THT:D_DO-27_P15.24mm_Horizontal
  • 3D model: DO-27 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: GOODWORK datasheet (3 pp, sha256 e36f2611f17799c3, 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