component
HER307
Public Made by Adomby adom
XUMAO 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.
main
HER307
XUMAO · Fast Recovery / High Efficiency Diodes · DO-27
HER307 from XUMAO, 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 | XUMAO |
| 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 | 800 | V | Ta=25℃ | 1 | ||
| Maximum RMS Voltage | VRMS | 560 | V | Ta=25℃ | 1 | ||
| Maximum DC Blocking Voltage | VDC | 800 | V | Ta=25℃ | 1 | ||
| Maximum Average Forward Rectified Current | IO(AV) | 3 | A | Ta=25℃ | 1 | ||
| Peak Forward Surge Current | IFSM | 80 | A | 8.3ms single half-sine-wave superimposed on rated load (JEDEC Method) | 1 | ||
| Forward Surge Current (Non-repetitive) | IFSM | 160 | A | @1ms, square wave, 1 cycle, Tj=25℃ | 1 | ||
| Current squared time | I2t | 26.6 | A2s | @1ms≤t≤8.3ms, Tj=25℃, per diode | 1 | ||
| Maximum Forward Voltage | VFM | 1.7 | V | at 3.0A DC | 1 | ||
| Maximum Reverse Current | IR | 5 | uA | TA = 25℃, at rated DC blocking voltage | 1 | ||
| Maximum Reverse Current | IR | 100 | uA | TA = 125℃, at rated DC blocking voltage | 1 | ||
| Maximum reverse recovery time | Trr | 75 | ns | 1 | |||
| Typical Thermal Resistance, junction to ambient | RQJa | 40 | ℃/W | Between junction and ambient | 1 | ||
| Operating Junction Temperature Range | TJ | -55 | 150 | ℃ | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
HER307 - 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: XUMAO datasheet (5 pp, sha256
23e256c0d322028d, retrieved 2026-10-22, 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).
# HER307
**XUMAO** · Fast Recovery / High Efficiency Diodes · DO-27
HER307 from XUMAO, 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 | XUMAO |
| 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 | | | 800 | V | Ta=25℃ | 1 |
| Maximum RMS Voltage | VRMS | | | 560 | V | Ta=25℃ | 1 |
| Maximum DC Blocking Voltage | VDC | | | 800 | V | Ta=25℃ | 1 |
| Maximum Average Forward Rectified Current | IO(AV) | | | 3 | A | Ta=25℃ | 1 |
| Peak Forward Surge Current | IFSM | | | 80 | A | 8.3ms single half-sine-wave superimposed on rated load (JEDEC Method) | 1 |
| Forward Surge Current (Non-repetitive) | IFSM | | | 160 | A | @1ms, square wave, 1 cycle, Tj=25℃ | 1 |
| Current squared time | I2t | | | 26.6 | A2s | @1ms≤t≤8.3ms, Tj=25℃, per diode | 1 |
| Maximum Forward Voltage | VFM | | | 1.7 | V | at 3.0A DC | 1 |
| Maximum Reverse Current | IR | | | 5 | uA | TA = 25℃, at rated DC blocking voltage | 1 |
| Maximum Reverse Current | IR | | | 100 | uA | TA = 125℃, at rated DC blocking voltage | 1 |
| Maximum reverse recovery time | Trr | | | 75 | ns | | 1 |
| Typical Thermal Resistance, junction to ambient | RQJa | | 40 | | ℃/W | Between junction and ambient | 1 |
| Operating Junction Temperature Range | TJ | -55 | | 150 | ℃ | | 1 |
| Storage Temperature Range | TSTG | -55 | | 150 | ℃ | | 1 |
## CAD (KiCad official)
- Symbol: `HER307`
- 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:** [XUMAO datasheet](docs/her307-datasheet.pdf) (5 pp, sha256 `23e256c0d322028d`, retrieved 2026-10-22, 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/her307-datasheet.pdf)