component
8122S-40.000NQ18FTL
Public Made by Adomby adom
HCI Temperature Compensated Crystal Oscillators (TCXO), 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
markdown8122S-40.000NQ18FTL
HCI · Temperature Compensated Crystal Oscillators (TCXO) · SMD2520-4P
8122S-40.000NQ18FTL from HCI, 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 | GND/N.C. | power_in | Pad 1 is ground (GND) or N.C. per the datasheet pad table; the datasheet does not state which for this MPN. |
| 2 | GND | power_in | Ground pin; the metal lid is connected to ground pin 2. |
| 3 | Output | output | RF clipped sine wave output, 0.8Vp-p minimum into a 10kΩ/10pF load. |
| 4 | Vcc | power_in | Supply voltage pin, with 1.8V, 2.5V, 2.8V, 3.0V or 3.3V options listed by the datasheet. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HCI |
| Package | SMD2520-4P |
| 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 (initial) | -2 | 2 | ppm | Initial tol. @+25°C | 1 | ||
| Aging per year | -1 | 1 | ppm | @+25°C | 1 | ||
| Output voltage level | 0.8 | Vp-p | Minimum; clipped sine wave, 10kΩ/10pF load | 1 | |||
| Phase jitter RMS | 1 | ps | 12kHz≤Fj≤20MHz | 1 | |||
| Frequency range | 10 | 52 | MHz | 1 | |||
| Nominal frequency | 40 | MHz | From MPN 8122S-40.000... | 1 |
CAD (KiCad official)
- Symbol:
8122S-40.000NQ18FTL - Footprint:
Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm - 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files:
8122s-40-000nq18ftl-etched.step/8122s-40-000nq18ftl-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);8122s-40-000nq18ftl.step/8122s-40-000nq18ftl.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HCI datasheet (1 pp, sha256
0f281b2939e0aa6c, retrieved 2026-10-27, tier: lcsc) - 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).