# VHF100505HQ1N8ST

**FH Guangdong Fenghua Advanced Tech** · Inductors (SMD) · 0402

VHF100505HQ1N8ST from FH Guangdong Fenghua Advanced Tech, in a 0402. 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 | 1 | passive | Terminal 1 of an unpolarised inductor or ferrite bead; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised inductor or ferrite bead; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | FH Guangdong Fenghua Advanced Tech |
| Package | 0402 |
| Category | Inductors, Coils, Chokes |
| 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 |
|---|---|---|---|---|---|---|---|
| Inductance tolerance (S level, code S in VHF100505HQ1N8ST) |  | -0.3 |  | 0.3 | nH | S level (±0.3nH); Ls ≤ 6.2nH uses B/C/S level | 4 |
| Q value | Q | 8 |  |  |  | test frequency 100 MHz; test voltage 50 mV | 5 |
| DC resistance (max) | RDC |  |  | 0.08 | Ω |  | 5 |
| Self-resonant frequency (min) | SRF | 6000 |  |  | MHz |  | 5 |
| Rated current (max) |  |  |  | 900 | mA |  | 5 |
| Inductance change after reliability tests |  | -10 |  | 10 | % | after resistance to soldering, low temperature, vibration, high temperature, humidity, high temperature load and temperature shock tests (HQ ceramic) | 7 |
| Q value change after reliability tests |  | -20 |  | 20 | % | after resistance to soldering, low temperature, vibration, high temperature, humidity, high temperature load and temperature shock tests (ceramic) | 7 |
| Nominal inductance |  |  | 1.8 |  | nH |  | 5 |
| Operating temperature range |  | -55 |  | 125 | ℃ |  | 6 |
| Storage temperature |  | -10 |  | 40 | ℃ | storage warehouse | 12 |
| Storage humidity |  | 30 |  | 70 | % RH | storage warehouse | 12 |
| Preheat temperature difference between product surface and solder |  |  |  | 150 | ℃ | reflow preheating | 11 |
| Cooling temperature difference between product surface and solvent |  |  |  | 100 | ℃ | after soldering, cooling | 11 |
| Iron soldering temperature |  |  |  | 350 | ℃ | manual iron soldering | 11 |
| Iron soldering power |  |  |  | 30 | W | manual iron soldering | 11 |
| Iron soldering contact time |  |  |  | 5 | s | manual iron soldering; keep iron tip off terminal electrodes | 11 |
| Cleaning temperature |  |  |  | 60 | ℃ | cleaning | 11 |
| Ultrasonic cleaning output power |  |  |  | 200 | W | ultrasonic cleaning | 11 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | silver | Terminal electrode 银层 Ag layer 银Ag | 4 |

## CAD (KiCad official)

- Symbol: `VHF100505HQ1N8ST`
- Footprint: `Inductor_SMD:L_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `vhf100505hq1n8st-etched.step` / `vhf100505hq1n8st-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `vhf100505hq1n8st.step` / `vhf100505hq1n8st.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [FH Guangdong Fenghua Advanced Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588934219368443904) (13 pp, sha256 `0fe649a4780c6c11`, retrieved 2026-10-17, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/vhf100505hq1n8st-datasheet.pdf)