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Contents

README

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Q22FA12800090

Seiko Epson · Crystals · SMD2016-4P

Q22FA12800090 from Seiko Epson, in a SMD2016-4P. 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 X'tal passive Crystal terminal connected to the internal FA-128 quartz resonator; the datasheet gives no voltage or current limit for this pin, only the crystal's electrical parameters (25 MHz example: 12 pF load, 80 Ω max ESR, 10 µW recommended drive level).
2 GND power_in Ground terminal that is internally connected to the crystal cover; the datasheet states it must be connected to ground.
3 X'tal passive Crystal terminal connected to the internal FA-128 quartz resonator; the datasheet gives no voltage or current limit for this pin, and it advises keeping the oscillator trace as short as possible to avoid abnormal oscillation.
4 GND power_in Ground terminal that is internally connected to the crystal cover; the datasheet states it must be connected to ground.

Key specifications

Parameter Value
Manufacturer Seiko Epson
Package SMD2016-4P
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 f_tol -10 10 x10-6 @+25ºC 1
Frequency stability over temperature f_tem -20 20 x10-6 -40ºC to +85ºC 1
Frequency aging f_age -1 1 x10-6 /yea @+25ºC, First year 1
Operating temperature range (absolute maximum ratings) T_use -40 105 ºC 1
Storage temperature T_stg -40 125 ºC Storage as single product 1
Operating temperature T_use -40 85 ºC 1
Level of drive DL 10 100 µW Recommended: 10 µW 1
Nominal frequency f_nom 25 MHz Fundamental 1
Load capacitance CL 12 pF 1
Motional resistance (ESR) R1 80 Ω 1
Motional capacitance C1 1.94 fF 1
Motional inductance L1 20.91 mH 1
Shunt capacitance C0 0.6 pF 1

CAD (KiCad official)

  • Symbol: Q22FA12800090
  • Footprint: Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm
  • 3D model: SMD2016-4P (KiCad packages3D, STEP)
  • 3D model files: q22fa12800090-etched.step / q22fa12800090-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); q22fa12800090.step / q22fa12800090.glb are the bare package body.

Provenance

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

  • Datasheet: Seiko Epson datasheet (11 pp, sha256 aef5c7dbf4b5a5cb, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF