# 8Z40090006

**TXC Corp** · Crystals · SMD2520-4P

8Z40090006 from TXC Corp, in a SMD2520-4P. 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 | XTAL1 | passive | Crystal terminal 1, connected to the crystal element in the connection diagram (12~66 MHz fundamental, load capacitance 8, 10 or 12 pF or specified). |
| 2 | GND | power_in | Marked GND in the connection diagram, connected to the lid/case ground. |
| 3 | XTAL2 | passive | Crystal terminal 2, connected to the crystal element in the connection diagram (drive level 1~200 µW max, 100 µW typical). |
| 4 | GND | power_in | Marked GND in the connection diagram, connected to the lid/case ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TXC Corp |
| Package | SMD2520-4P |
| Category | Resonators/Oscillators |
| 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 |  | 12 |  | 66 | MHz | Fundamental | 1 |
| ESR | ESR |  |  | 150 | Ω | 12 ~ 13 MHz | 1 |
| ESR | ESR |  |  | 100 | Ω | 14 ~ 30 MHz | 1 |
| ESR | ESR |  |  | 60 | Ω | 30 ~ 66 MHz | 1 |
| Shunt Capacitance | C0 |  |  | 3 | pF |  | 1 |
| Drive Level |  | 1 | 100 | 200 | μW | 1 ~200 μW Max. (100uW typical) | 1 |
| Aging |  | -3 |  | 3 | ppm/year | at 25 ℃ | 1 |
| Operating Temperature Range |  | -10 |  | 70 | ℃ | or specify | 1 |
| Storage Temperature Range |  | -40 |  | 85 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `8Z40090006`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `8z40090006-etched.step` / `8z40090006-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `8z40090006.step` / `8z40090006.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TXC Corp datasheet](docs/8z40090006-datasheet.pdf) (1 pp, sha256 `4f2226fcac8b391c`, retrieved 2026-11-02, tier: lcsc)
- **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/8z40090006-datasheet.pdf)