# NX3225SA-16MHz-STD-CSR-6

**NDK** · Crystals · SMD3225-4P

NX3225SA-16MHz-STD-CSR-6 from NDK, in a SMD3225-4P. 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 | X'tal | passive | Crystal resonator terminal (marked *#1, #3 : X'tal) for the NX3225SA crystal unit, with the crystal connected between pins 1 and 3. |
| 2 | Cover (GND) | passive | Connected to pin 4 through the metal cover; the datasheet states it should be connected to GND, and it is not a crystal terminal. |
| 3 | X'tal | passive | Crystal resonator terminal (marked *#1, #3 : X'tal) for the NX3225SA crystal unit, with the crystal connected between pins 1 and 3. |
| 4 | Cover (GND) | passive | Connected to pin 2 through the metal cover; the datasheet states it should be connected to GND, and it is not a crystal terminal. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | NDK |
| Package | SMD3225-4P |
| Category | Crystal Oscillator/Oscillator/Resonator |
| 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 |
|---|---|---|---|---|---|---|---|
| Equivalent Series Resistance (fundamental, 13 ≤ F < 20 MHz) | ESR |  |  | 80 | Ω | Fundamental, 13 ≤ F < 20 MHz (16 MHz falls in this band) | 1 |
| Frequency Tolerance (25 ±3 °C) |  | -15 |  | 15 | × 10−6 | 25 ±3 °C, Standard (STD) column | 1 |
| Frequency versus Temperature Characteristics |  | -25 |  | 25 | × 10−6 | With reference to +25 °C, Standard (STD) column | 1 |
| Level of Drive |  |  | 10 | 200 | μW | Standard column; printed as 10 (Max. 200) | 1 |
| Operating Temperature Range |  | -40 |  | 85 | °C | Standard column | 1 |
| Storage Temperature Range |  | -40 |  | 85 | °C | Standard column; the datasheet does not label this row as an absolute maximum | 1 |
| Load Capacitance | CL |  | 8 |  | pF | Standard column (STD); optional 6 to 32 pF column not applicable | 1 |

## CAD (KiCad official)

- Symbol: `NX3225SA-16MHz-STD-CSR-6`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `nx3225sa-16mhz-std-csr-6-etched.step` / `nx3225sa-16mhz-std-csr-6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nx3225sa-16mhz-std-csr-6.step` / `nx3225sa-16mhz-std-csr-6.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [NDK datasheet](docs/nx3225sa-16mhz-std-csr-6-datasheet.pdf) (1 pp, sha256 `c65b7ca9c45bd9b4`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/nx3225sa-16mhz-std-csr-6-datasheet.pdf)