component
CM4037M40012T8188142
Public Made by Adomby adom
JWT Crystals, SMD2520-4P. 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
markdownCM4037M40012T8188142
JWT · Crystals · SMD2520-4P
CM4037M40012T8188142 from JWT, in a SMD2520-4P. 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 1 of the 37.400 MHz fundamental AT-cut resonator (CL 12 pF), diagonal to pin 3 in the crystal connection drawing. |
| 2 | GND | power_in | Pad marked GND in the top-view crystal connection drawing, connected to ground. |
| 3 | XTAL2 | passive | Crystal terminal 2 of the 37.400 MHz fundamental AT-cut resonator (CL 12 pF), diagonal to pin 1 in the crystal connection drawing. |
| 4 | GND | power_in | Pad marked GND in the top-view crystal connection drawing, connected to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JWT |
| Package | SMD2520-4P |
| 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 | F0 | 37.4 | MHz | 4 | |||
| Load capacitance | CL | 12 | pF | 4 | |||
| Frequency tolerance | FL | -10 | 10 | ppm | 25±2℃ | 4 | |
| Frequency stability over temperature | TC | -30 | 30 | ppm | Reference temperature 25℃ | 4 | |
| Operating temperature | -40 | 85 | ℃ | 4 | |||
| Drive level | DL | 1 | 100 | 200 | uW | 4 | |
| Resonance resistance | RR | 40 | Ω | ≤40 | 4 | ||
| Shunt capacitance | C0 | 3 | pF | ≤3.0 | 4 | ||
| Insulation resistance | IR | 500 | MΩ | at DC 100V | 4 | ||
| Spurious attenuation | SPDB | -3 | dB | -1000ppm～6500ppm | 4 | ||
| Aging | -2 | 2 | ppm | 1st year max | 4 | ||
| Storage temperature | -55 | 125 | ℃ | 4 |
CAD (KiCad official)
- Symbol:
CM4037M40012T8188142 - Footprint:
Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm - 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files:
cm4037m40012t8188142-etched.step/cm4037m40012t8188142-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cm4037m40012t8188142.step/cm4037m40012t8188142.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JWT datasheet (10 pp, sha256
7faa8f4592418599, 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).