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Contents

README

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8122S-26.480MQ33DTL

HCI · Temperature Compensated Crystal Oscillators (TCXOs) · SMD2520-4P

8122S-26.480MQ33DTL 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 Ground or no connection (datasheet lists 'GROUND GND or N.C.'); the datasheet does not state which applies to this MPN.
2 GND power_in Ground; the metal lid is connected to this ground pin 2.
3 OUTPUT output Clipped sine wave RF output, 0.8Vp-p minimum into a 10kΩ/10pF load.
4 VCC power_in Supply voltage Vcc; the datasheet lists 1.8V, 2.5V, 2.8V, 3.0V or 3.3V options, with supply current of 1.5mA / 2.0mA at 10kΩ/10pF.

Key specifications

Parameter Value
Manufacturer HCI
Package SMD2520-4P
Category Resonators/Oscillators
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 range 10 52 MHz 1
Frequency tolerance (initial) -2 2 ppm @+25°C 1
Frequency stability option ±0.5ppm -0.5 0.5 ppm Over operating temperature range, referenced to +25°C; option not decoded from MPN 1
Frequency stability option ±1.0ppm -1 1 ppm Over operating temperature range, referenced to +25°C; option not decoded from MPN 1
Frequency stability option 1.5ppm -1.5 1.5 ppm Over operating temperature range, referenced to +25°C; printed without ± sign, symmetric sign assumed; option not decoded from MPN 1
Frequency stability option ±2.0ppm -2 2 ppm Over operating temperature range, referenced to +25°C; option not decoded from MPN 1
Frequency stability option ±2.5ppm -2.5 2.5 ppm Over operating temperature range, referenced to +25°C; option not decoded from MPN 1
Operating temperature range option A -20 70 °C In combination with the above stabilities; option not decoded from MPN 1
Operating temperature range option B -30 85 °C In combination with the above stabilities; option not decoded from MPN 1
Operating temperature range option C -40 85 °C In combination with the above stabilities; option not decoded from MPN 1
Aging per year -1 1 ppm @+25°C, per year 1
Output voltage level 0.8 Vp-p Clipped sine wave, minimum 1
Supply current 2 mA @10kΩ/10pF, frequency >26MHz (higher value); applies to 26.480MHz 1
Phase jitter RMS 1 ps RMS, 12kHz≤Fj≤20MHz 1

CAD (KiCad official)

  • Symbol: 8122S-26.480MQ33DTL
  • Footprint: Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm
  • 3D model: SMD2520-4P (KiCad packages3D, STEP)
  • 3D model files: 8122s-26-480mq33dtl-etched.step / 8122s-26-480mq33dtl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 8122s-26-480mq33dtl.step / 8122s-26-480mq33dtl.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HCI datasheet (1 pp, sha256 0f281b2939e0aa6c, retrieved 2026-10-29, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF