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XC21M4-39.000-F10LLDTL

Public Made by Adom

by adom

HCI Crystals, SMD2016-4P. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

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XC21M4-39.000-F10LLDTL

HCI · Crystals · SMD2016-4P

XC21M4-39.000-F10LLDTL from HCI, 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 CRYSTAL passive Crystal terminal 1 of the AT-cut fundamental crystal (20.000 to 60.000MHz range).
2 N.C./GND passive Connected to the metal lid; may be left open (floating) or connected to ground.
3 CRYSTAL passive Crystal terminal 2 of the AT-cut fundamental crystal (20.000 to 60.000MHz range).
4 N.C./GND passive Connected to the metal lid; may be left open (floating) or connected to ground.

Key specifications

Parameter Value
Manufacturer HCI
Package SMD2016-4P
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
Equivalent series resistance (30.000 to 39.999MHz) 80 Ω 30.000 to 39.999MHz 1
Shunt capacitance 3 pF 1
Drive level 10 100 µW TYP / MAX as printed 1
Storage temperature range -55 125 °C 1
Operating temperature range (option -20 to +70°C) -20 70 °C Option listed as -20 to +70°C; Other options available 1
Operating temperature range (option -30 to +85°C) -30 85 °C Option listed as -30 to +85°C; Other options available 1
Nominal frequency (from part number 39.000 MHz) 39 MHz Nominal frequency range 20.000 ~ 60.000MHz; value from MPN 1

CAD (KiCad official)

  • Symbol: XC21M4-39.000-F10LLDTL
  • Footprint: Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm
  • 3D model: SMD2016-4P (KiCad packages3D, STEP)
  • 3D model files: xc21m4-39-000-f10lldtl-etched.step / xc21m4-39-000-f10lldtl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xc21m4-39-000-f10lldtl.step / xc21m4-39-000-f10lldtl.glb are the bare package body.

Provenance

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

  • Datasheet: HCI datasheet (1 pp, sha256 e89f0768f67c7eed, retrieved 2026-10-22, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF