component
HER504G
Public Made by Adomby adom
YFW Fast Recovery / High Efficiency Diodes, DO-27. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownHER504G
YFW · Fast Recovery / High Efficiency Diodes · DO-27
HER504G from YFW, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| 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 Repetitive Peak Reverse Voltage | VRRM | 300 | V | 1 | |||
| Maximum RMS voltage | VRMS | 210 | V | 1 | |||
| Maximum DC Blocking Voltage | VDC | 300 | V | 1 | |||
| Maximum Average Forward Rectified Current | IF(AV) | 5 | A | at Tc = 100 °C | 1 | ||
| Peak Forward Surge Current | IFSM | 150 | A | 8.3 ms Single Half Sine Wave Superimposed on Rated Load | 1 | ||
| Maximum DC Reverse Current | IR | 10 | μA | Ta = 25 °C at Rated DC Blocking Voltage | 1 | ||
| Maximum DC Reverse Current | IR | 500 | μA | Ta=125 °C at Rated DC Blocking Voltage | 1 | ||
| Operating and Storage Temperature Range | Tj, Tstg | -55 | 150 | °C | 1 | ||
| Typical Junction Capacitance | Cj | 100 | pF | Measured at 1 MHz and applied reverse voltage of 4 V D.C | 1 | ||
| Typical Thermal Resistance | RθJA | 65 | °C/W | 1 |
CAD (KiCad official)
- Symbol:
HER504G - 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: YFW datasheet (3 pp, sha256
ac6effc0c82e0119, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).