component
2.3.3.400000901
Public Made by Adomby adom
MDH 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
markdown2.3.3.400000901
MDH · Crystals · SMD3225-4P
2.3.3.400000901 from MDH, 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) of the 40.000000 MHz fundamental-mode crystal with 9.0 pF load capacitance, interchangeable with pin 3. |
| 2 | GND | power_in | Ground pad, connected to GND per the pin connection table. |
| 3 | IN/OUT | passive | Crystal terminal (IN/OUT) of the 40.000000 MHz fundamental-mode crystal with 9.0 pF load capacitance, interchangeable with pin 1. |
| 4 | GND | power_in | Ground pad, connected to GND per the pin connection table. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MDH |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal frequency | 40 | MHz | Fundamental mode | 4 | |||
| Adjustment tolerance (at +25℃) | -10 | 10 | ppm | at +25℃ | 4 | ||
| Load capacitance | 9 | pF | 4 | ||||
| Drive level | 100 | µw | 4 | ||||
| Equivalent resistance | 25 | Ω | 4 | ||||
| Shunt capacitance | C0 | 3 | pF | 4 | |||
| Insulation resistance | 500 | MΩ | 100VDC±15VDC | 4 | |||
| Aging | -2 | 2 | ppm | First year | 4 | ||
| Operating temperature | -30 | 85 | ℃ | 4 | |||
| Storage temperature | -40 | 85 | ℃ | 4 |
CAD (KiCad official)
- Symbol:
2.3.3.400000901 - Footprint:
Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm - 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files:
2-3-3-400000901-etched.step/2-3-3-400000901-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2-3-3-400000901.step/2-3-3-400000901.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDH datasheet (10 pp, sha256
e154c274831568bd, 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).