component
7U28636AE18UCG
Public Made by Adomby adom
SJK(SHENZHEN CRYSTAL TECH) 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 | 7d ago |
| viewers | 7d ago |
| 7u28636ae18ucg-etched.glb | 7d ago |
| 7u28636ae18ucg-etched.step | 7d ago |
| 7u28636ae18ucg-hero.glb | 7d ago |
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| 7u28636ae18ucg.glb | 7d ago |
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| 7u28636ae18ucg.lbr | 7d ago |
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7U28636AE18UCG
SJK(SHENZHEN CRYSTAL TECH) · Crystals · SMD3225-4P
7U28636AE18UCG from SJK(SHENZHEN CRYSTAL TECH), 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 (28.636360MHz, CL 18pF, ESR 40Ω max), interchangeable with pin 3; pin 1 is the chamfered pad. |
| 2 | GND | power_in | Marked GND in the top-view crystal connection drawing; connect to ground. |
| 3 | XTAL2 | passive | Crystal terminal (28.636360MHz, CL 18pF, ESR 40Ω max), interchangeable with pin 1. |
| 4 | GND | power_in | Marked GND in the top-view crystal connection drawing; connect to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SJK(SHENZHEN CRYSTAL TECH) |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency tolerance | -10 | 10 | ppm | at 25°C | 2 | ||
| Frequency stability over operating temperature | -10 | 10 | ppm | -20 °C to +70 °C | 2 | ||
| Frequency stability over operating temperature | -30 | 30 | ppm | -40 °C to +85 °C | 2 | ||
| Aging, first year | -3 | 3 | ppm/year | @25°C 1st year (Max) | 2 | ||
| Equivalent series resistance | ESR | 40 | Ω | 2 | |||
| Shunt capacitance | C0 | 3 | PF | 2 | |||
| Operating temperature range | -40 | 85 | °C | 2 | |||
| Storage temperature range | -40 | 125 | °C | 2 | |||
| Frequency change after reliability tests | -5 | 5 | ppm | before/after drop, vibration, thermal shock, reflow, high/low temperature tests (section 6) | 4 | ||
| Resistance (ESR) change after reliability tests | -15 | 15 | % | before/after drop, vibration, thermal shock, reflow, high/low temperature tests (section 6) | 4 | ||
| Output frequency (nominal) | 28.6364 | MHz | 2 | ||||
| Load capacitance | CL | 18 | PF | 2 | |||
| Driver level | 10 | µW | 2 |
CAD (KiCad official)
- Symbol:
7U28636AE18UCG - Footprint:
Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm - 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files:
7u28636ae18ucg-etched.step/7u28636ae18ucg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);7u28636ae18ucg.step/7u28636ae18ucg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SJK(SHENZHEN CRYSTAL TECH) datasheet (4 pp, sha256
05e0d8cfaafdf2a0, retrieved 2026-10-22, 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).