component
TZ1444A
Public Made by Adomby adom
TST Crystals, SMD3225-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTZ1444A
TST · Crystals · SMD3225-4P
TZ1444A 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 marked IN/OUT (#1 pin) that connects to one end of the 12.000000 MHz fundamental-mode crystal. |
| 2 | GND | power_in | Ground terminal (#2 pin GND) that is tied to the crystal's ground connection. |
| 3 | IN/OUT | passive | Crystal terminal marked IN/OUT (#3 pin) that connects to the other end of the crystal. |
| 4 | GND | power_in | Ground terminal (#4 pin GND) that is tied to the crystal's ground connection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TST |
| Package | SMD3225-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Equivalent Series Resistance (ESR) | ESR | 100 | Ω | 3 | |||
| Nominal Drive Level | 100 | uW | 3 | ||||
| Shunt Capacitance | Co | 5 | pF | 3 | |||
| Frequency Make Tolerance (FL) | FL | -10 | 10 | ppm | @ 25°C +/- 3°C | 3 | |
| Frequency Stability over Operating Temperature Range | -15 | 15 | ppm | Referred to the value at 25°C, over operating temperature range | 3 | ||
| Aging | -1 | 1 | ppm/year | 3 | |||
| Insulation Resistance | 500 | MΩ | DC 100V | 3 | |||
| Operating Temperature Range | -30 | 85 | °C | 3 | |||
| Storage Temperature Range | -40 | 85 | °C | Storage range as printed; not an operating range | 3 | ||
| Nominal Frequency | 12 | MHz | 3 | ||||
| Load Capacitance (CL) | CL | 10 | pF | 3 |
CAD (KiCad official)
- Symbol:
TZ1444A - Footprint:
Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm - 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files:
tz1444a-etched.step/tz1444a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tz1444a.step/tz1444a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TST datasheet (7 pp, sha256
5b36a7a06b3d38fe, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).