# R948000420

**TROQ** · Crystals · SMD2016-4P

R948000420 from TROQ, in a SMD2016-4P. 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 | Pad 1 at the top-left of the 2.0x1.6mm footprint drawing; the datasheet does not state its function. |
| 2 | 2 | passive | Pad 2 at the top-right of the 2.0x1.6mm footprint drawing; the datasheet does not state its function. |
| 3 | 3 | passive | Pad 3 at the bottom-right of the 2.0x1.6mm footprint drawing; the datasheet does not state its function. |
| 4 | 4 | passive | Pad 4 at the bottom-left of the 2.0x1.6mm footprint drawing; the datasheet does not state its function. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TROQ |
| Package | SMD2016-4P |
| Category | Crystals, Oscillators, Resonators |
| Pins | 4 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Frequency Range |  | 16 |  | 54 | MHz | Fundamental mode | 1 |
| Operating Temperature Range |  | -40 |  | 85 | °C | or specify | 1 |
| Storage Temperature Range |  | -40 |  | 85 | °C |  | 1 |
| Aging Rate |  | -3 |  | 3 | ppm/year |  | 1 |
| Static Capacitance | C0 |  |  | 3 | pF | <3pf | 1 |

## CAD (KiCad official)

- Symbol: `R948000420`
- Footprint: `Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm`
- 3D model: SMD2016-4P (KiCad packages3D, STEP)
- 3D model files: `r948000420-etched.step` / `r948000420-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `r948000420.step` / `r948000420.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TROQ datasheet](docs/r948000420-datasheet.pdf) (1 pp, sha256 `41f1ba2ca6a04e0b`, retrieved 2026-10-22, 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 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/r948000420-datasheet.pdf)