component
Q24FA20H00729
Public Made by Adomby adom
Seiko Epson 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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Contents
README
markdownQ24FA20H00729
Seiko Epson · Crystals · SMD2520-4P
Q24FA20H00729 from Seiko Epson, 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 32.000000 MHz fundamental crystal unit, isolation resistance 500 MΩ min. to terminal #3 at DC 100 V. |
| 2 | GND | power_in | Terminal #2 is connected to the lid and the datasheet says to connect it to GND. |
| 3 | XTAL2 | passive | Crystal terminal #3 of the 32.000000 MHz fundamental crystal unit, isolation resistance 500 MΩ min. to terminal #1 at DC 100 V. |
| 4 | GND | power_in | Terminal #4 is connected to the lid and the datasheet says to connect it to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Seiko Epson |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency tolerance | f_tol | -10 | 10 | ppm | CL = 8 pF, Ta = +25 °C ±3 °C, DL = 100 μW, not include aging | 3 | |
| Motional resistance | R1 | 50 | Ω | 30 ≤ f_nom ≤ 35 MHz; π circuit IEC 60444-2, Ta = operating temperature range, DL = 100 μW | 3 | ||
| Shunt capacitance | C0 | 2 | pF | π circuit and N.A. | 3 | ||
| Frequency temperature characteristics | f_tem | -20 | 20 | ppm | Ta = Operating temperature range (Ref. at Ta = +25 °C ±3 °C), DL = 100 μW | 3 | |
| Isolation resistance | IR | 500 | MΩ | DC 100 V ±15, 60 seconds, between terminal #1 and terminal #3 | 3 | ||
| Frequency aging | f_age | -1 | 1 | ppm/year | 12 ≤ f_nom ≤ 40 MHz, Ta = +25 °C ±3 °C | 3 | |
| Storage temperature range | T_stg | -40 | 125 | °C | 3 | ||
| Operating temperature range | T_use | -40 | 85 | °C | 3 | ||
| Level of drive | DL | 1 | 100 | µW | 3 | ||
| Nominal frequency | f_nom | 32 | MHz | Fundamental | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | gold | Terminal Plating : Au plating #3 #4 | 5 |
CAD (KiCad official)
- Symbol:
Q24FA20H00729 - Footprint:
Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm - 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files:
q24fa20h00729-etched.step/q24fa20h00729-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);q24fa20h00729.step/q24fa20h00729.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Seiko Epson datasheet (17 pp, sha256
170849a1f0daa0bb, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).