# TZ2006D

**TST** · Crystals · SMD3225-4P

TZ2006D from TST, 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 | IN/OUT | passive | Crystal terminal (IN/OUT) for the 25.000000 MHz fundamental-mode crystal, with 18 pF load capacitance and 100uW max drive level. |
| 2 | GND | power_in | Ground pad; the pin connection table lists #2 as GND (Base 1 and Base 2 internal connections are drawn on the same page). |
| 3 | IN/OUT | passive | Second crystal terminal (IN/OUT) for the 25.000000 MHz fundamental-mode crystal, with 3.0 pF max shunt capacitance. |
| 4 | GND | power_in | Ground pad; the pin connection table lists #4 as GND, and the Pin#1/Pin#4 side inner area is a blank XTAL mounting pad. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TST |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal Frequency |  |  | 25 |  | MHz | Mode of oscillation: Fundamental | 3 |
| Frequency Make Tolerance (FL) | FL | -10 |  | 10 | ppm | @ 25°C +/- 3°C | 3 |
| Frequency Stability over Operating Temperature Range |  | -10 |  | 10 | ppm | Referred to the value at 25°C, over operating temperature range | 3 |
| Aging |  | -3 |  | 3 | ppm |  | 3 |
| Equivalent Series Resistance (ESR) | ESR |  |  | 70 | Ω |  | 3 |
| Nominal Drive Level |  |  | 10 | 100 | uW | Typical and maximum as printed; no test condition printed | 3 |
| Shunt Capacitance | Co |  |  | 3 | pF |  | 3 |
| Load Capacitance | CL |  | 18 |  | pF |  | 3 |
| Insulation Resistance |  | 500 |  |  | MΩ | DC 100V | 3 |
| Operating Temperature Range |  | -30 |  | 85 | °C |  | 3 |
| Storage Temperature Range |  | -40 |  | 85 | °C |  | 3 |
| Reflow Max Peak Temperature |  |  | 260 |  | °C | Printed as 260+/-5 deg C for 10+/-2 sec (reflow profile) | 7 |

## CAD (KiCad official)

- Symbol: `TZ2006D`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `tz2006d-etched.step` / `tz2006d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tz2006d.step` / `tz2006d.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TST datasheet](docs/tz2006d-datasheet.pdf) (8 pp, sha256 `0f0ce759fa770c5f`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tz2006d-datasheet.pdf)