component
HER204
Public Made by Adomby adom
LangJie Fast Recovery / High Efficiency Diodes, DO-15. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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HER204
LangJie · Fast Recovery / High Efficiency Diodes · DO-15
HER204 from LangJie, in a DO-15. 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 case; the datasheet states 'Color band denotes cathode end'. |
| 2 | A | passive | Anode, the axial lead at the end opposite the color band; the datasheet gives no other pin detail. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LangJie |
| Package | DO-15 |
| 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 Instantaneous Forward Voltage | VF | 1.3 | V | at 2.0A | 1 | ||
| Maximum DC Reverse Current | IR | 5 | µA | at Rated DC Blocking Voltage, TA=25℃ | 1 | ||
| Maximum DC Reverse Current | IR | 100 | µA | at Rated DC Blocking Voltage, TA=100℃ | 1 | ||
| Maximum Reverse Recovery Time | TRR | 50 | nS | If=0.5A, Ir=1.0A, Irr=0.25A | 1 | ||
| Maximum Repetitive Peak Reverse Voltage | VRRM | 300 | Volts | 1 | |||
| Maximum RMS Voltage | VRMS | 210 | Volts | 1 | |||
| Maximum DC Blocking Voltage | VDC | 300 | Volts | 1 | |||
| Maximum Average Forward Rectified Current | I(AV) | 2 | Amps | TA=75℃ | 1 | ||
| Peak Forward Surge Current | IFSM | 60 | Amps | 8.3mS single half sine-wave superimposed on rated load (JEDEC method) | 1 | ||
| Operating and Storage Temperature Range | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Typical Thermal Resistance Junction to Ambient | RθJA | 50 | ℃/W | 0.375″(9.5mm) lead length, PCB mounted | 1 | ||
| Typical Junction Capacitance | CJ | 30 | pF | 1.0MHz, applied reverse voltage 4.0 Volts | 1 |
CAD (KiCad official)
- Symbol:
HER204 - Footprint:
Diode_THT:D_DO-15_P12.70mm_Horizontal - 3D model: DO-15 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LangJie datasheet (4 pp, sha256
8a9e02994c7373e8, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).
# HER204
**LangJie** · Fast Recovery / High Efficiency Diodes · DO-15
HER204 from LangJie, in a DO-15. 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 case; the datasheet states 'Color band denotes cathode end'. |
| 2 | A | passive | Anode, the axial lead at the end opposite the color band; the datasheet gives no other pin detail. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LangJie |
| Package | DO-15 |
| 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 Instantaneous Forward Voltage | VF | | | 1.3 | V | at 2.0A | 1 |
| Maximum DC Reverse Current | IR | | | 5 | µA | at Rated DC Blocking Voltage, TA=25℃ | 1 |
| Maximum DC Reverse Current | IR | | | 100 | µA | at Rated DC Blocking Voltage, TA=100℃ | 1 |
| Maximum Reverse Recovery Time | TRR | | | 50 | nS | If=0.5A, Ir=1.0A, Irr=0.25A | 1 |
| Maximum Repetitive Peak Reverse Voltage | VRRM | | | 300 | Volts | | 1 |
| Maximum RMS Voltage | VRMS | | | 210 | Volts | | 1 |
| Maximum DC Blocking Voltage | VDC | | | 300 | Volts | | 1 |
| Maximum Average Forward Rectified Current | I(AV) | | | 2 | Amps | TA=75℃ | 1 |
| Peak Forward Surge Current | IFSM | | | 60 | Amps | 8.3mS single half sine-wave superimposed on rated load (JEDEC method) | 1 |
| Operating and Storage Temperature Range | TJ,TSTG | -55 | | 150 | ℃ | | 1 |
| Typical Thermal Resistance Junction to Ambient | RθJA | | 50 | | ℃/W | 0.375″(9.5mm) lead length, PCB mounted | 1 |
| Typical Junction Capacitance | CJ | | 30 | | pF | 1.0MHz, applied reverse voltage 4.0 Volts | 1 |
## CAD (KiCad official)
- Symbol: `HER204`
- Footprint: `Diode_THT:D_DO-15_P12.70mm_Horizontal`
- 3D model: DO-15 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [LangJie datasheet](docs/her204-datasheet.pdf) (4 pp, sha256 `8a9e02994c7373e8`, 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](docs/her204-datasheet.pdf)