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Contents

README

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HER504

LGE · Super Barrier Rectifiers (SBR) · DO-27

HER504 from LGE, 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, marked by the color band on the molded plastic case.
2 A passive Anode, the lead opposite the color band, for a rectifier rated 300 V VRRM and 5.0 A average forward current.

Key specifications

Parameter Value
Manufacturer LGE
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 300 V 1
Maximum RMS Voltage VRMD 210 V 1
Maximum DC Blocking Voltage VDC 300 V 1
Maximum Average Forward Rectified Current I(AV) 5 A .375 (9.5mm) lead length @TA = 55 oC 1
Peak Forward Surge Current IFSM 200 A 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) 1
Maximum Instantaneous Forward Voltage VF 1 V @5.0A 1
Maximum DC Reverse Current IR 10 uA @Ta=25 oC at Rated DC Blocking Voltage 1
Maximum DC Reverse Current IR 250 uA @Ta=125 oC at Rated DC Blocking Voltage 1
Maximum Reverse Recovery Time Trr 50 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 100 pF Measured at 1 MHz and applied reverse voltage of 4.0 V DC 1
Typical Thermal Resistance RθJA 40 °C/W Mount on Cu-Pad Size 16mm x 16mm on P.C.B. 1

CAD (KiCad official)

  • Symbol: HER504
  • 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: LGE datasheet (2 pp, sha256 49308f13d9a0ef87, 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