component
SX3B40.000F1210F30
Public Made by Adomby adom
Shenzhen SCTF Elec Crystals, SMD3225-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 17d ago |
| viewers | 17d ago |
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| page.json | 17d ago |
| README.md | 17d ago |
| sx3b40-000f1210f30-etched.glb | 17d ago |
| sx3b40-000f1210f30-etched.step | 17d ago |
| sx3b40-000f1210f30-hero.glb | 17d ago |
| sx3b40-000f1210f30-hero.overlay.json | 17d ago |
| sx3b40-000f1210f30.glb | 17d ago |
| sx3b40-000f1210f30.kicad_mod | 17d ago |
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| sx3b40-000f1210f30.step | 17d ago |
SX3B40.000F1210F30
Shenzhen SCTF Elec · Crystals · SMD3225-4P
SX3B40.000F1210F30 from Shenzhen SCTF Elec, 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 | XTAL1 | passive | Crystal terminal for the 40.000MHz fundamental-mode resonator, used with a 12pF load capacitance (CL). |
| 2 | GND/NC | power_in | Connected to the metal lid, and the datasheet says to connect it to GND or leave it floating. |
| 3 | XTAL2 | passive | Second crystal terminal, diagonal to pin 1, used with a 12pF load capacitance (CL). |
| 4 | GND/NC | power_in | Connected to the metal lid, and the datasheet says to connect it to GND or leave it floating. It is not used as a starting position, so a missing pad is acceptable. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen SCTF Elec |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency tolerance (at 25℃) | -10 | 10 | PPM | at 25℃±2℃ | 3 | ||
| Temperature drift (frequency over operating temperature) | f_tem | -30 | 30 | PPM | Over operating temp. range (reference 25℃) | 3 | |
| 1st year aging | f_age | -3 | 3 | ppm | 1st year aging | 3 | |
| Negative resistance | -R | 150 | Ω | 3 | |||
| Shunt capacitance | 3 | pF | 3 | ||||
| Effective resistance (ESR) | 30 | Ω | 3 | ||||
| Spurious response | SPDB | -3 | dB | 3 | |||
| Insulation resistance | IR | 500 | MΩ | at DC 100V | 3 | ||
| Drive level | DL | 100 | μW | Section 2.1 drive level | 3 | ||
| Nominal frequency | f | 40 | MHz | Fundamental, AT cut, SMD3225, 12PF load | 3 | ||
| Load capacitance | CL | 12 | pF | 3 | |||
| Operating temperature range | T_use | -40 | 85 | ℃ | 3 | ||
| Storage temperature range | T_sta | -55 | 125 | ℃ | 3 |
CAD (KiCad official)
- Symbol:
SX3B40.000F1210F30 - Footprint:
Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm - 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files:
sx3b40-000f1210f30-etched.step/sx3b40-000f1210f30-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sx3b40-000f1210f30.step/sx3b40-000f1210f30.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen SCTF Elec datasheet (8 pp, sha256
8baa9dbcc38cd865, retrieved 2026-10-16, 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).