component
HER108
Public Made by Adomby adom
HORNBY ELECTRONIC High Effic Rectifier, DO-41. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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HER108
HORNBY ELECTRONIC · High Effic Rectifier · DO-41
HER108 from HORNBY ELECTRONIC, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HORNBY ELECTRONIC |
| 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 | Volts | 1 | |||
| Maximum RMS Voltage | VRMS | 700 | Volts | 1 | |||
| Maximum DC Blocking Voltage | VDC | 1000 | Volts | 1 | |||
| Maximum Average Forward Rectified Current | I(AV) | 1 | Amp | .375"(9.5mm) Lead Length at TA=50℃ | 1 | ||
| Peak Forward Surge Current | IFSM | 30 | Amp | 8.3ms single half-sine-wave superimposed on rated load (JEDEC method) | 1 | ||
| Operating and Storage Temperature Range | TJ, Tstg | -55 | 150 | ℃ | 1 | ||
| Maximum Forward Voltage | VF | 1.7 | Volts | at 1.0A and TA=25℃ | 1 | ||
| Maximum Reverse Current at TJ=25℃ | IR | 5 | uAmp | at Rated DC Blocking Voltage, TJ=25℃ | 1 | ||
| Maximum Reverse Current at TJ=100℃ | IR | 50 | uAmp | at Rated DC Blocking Voltage, TJ=100℃ | 1 | ||
| Maximum Reverse Recovery Time | TRR | 75 | nS | Reverse Recovery Test Conditions: IF=.5A, IR=1A, IRR=.25A (Note 2) | 1 | ||
| Typical Thermal Resistance | RθJA | 60 | ℃/W | Junction to ambient, 0.375" (9.5mm) lead length, P.C.B. mounted (Note 3) | 1 |
CAD (KiCad official)
- Symbol:
HER108 - 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: HORNBY ELECTRONIC datasheet (2 pp, sha256
298cc8d9113720bd, retrieved 2026-10-21, 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).
# HER108
**HORNBY ELECTRONIC** · High Effic Rectifier · DO-41
HER108 from HORNBY ELECTRONIC, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HORNBY ELECTRONIC |
| 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 | Volts | | 1 |
| Maximum RMS Voltage | VRMS | | | 700 | Volts | | 1 |
| Maximum DC Blocking Voltage | VDC | | | 1000 | Volts | | 1 |
| Maximum Average Forward Rectified Current | I(AV) | | | 1 | Amp | .375"(9.5mm) Lead Length at TA=50℃ | 1 |
| Peak Forward Surge Current | IFSM | | | 30 | Amp | 8.3ms single half-sine-wave superimposed on rated load (JEDEC method) | 1 |
| Operating and Storage Temperature Range | TJ, Tstg | -55 | | 150 | ℃ | | 1 |
| Maximum Forward Voltage | VF | | | 1.7 | Volts | at 1.0A and TA=25℃ | 1 |
| Maximum Reverse Current at TJ=25℃ | IR | | | 5 | uAmp | at Rated DC Blocking Voltage, TJ=25℃ | 1 |
| Maximum Reverse Current at TJ=100℃ | IR | | | 50 | uAmp | at Rated DC Blocking Voltage, TJ=100℃ | 1 |
| Maximum Reverse Recovery Time | TRR | | | 75 | nS | Reverse Recovery Test Conditions: IF=.5A, IR=1A, IRR=.25A (Note 2) | 1 |
| Typical Thermal Resistance | RθJA | | 60 | | ℃/W | Junction to ambient, 0.375" (9.5mm) lead length, P.C.B. mounted (Note 3) | 1 |
## CAD (KiCad official)
- Symbol: `HER108`
- 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:** [HORNBY ELECTRONIC datasheet](docs/her108-datasheet.pdf) (2 pp, sha256 `298cc8d9113720bd`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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](docs/her108-datasheet.pdf)