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Contents

README

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7F38400E08UCG

SJK(SHENZHEN CRYSTAL TECH) · Crystals · SMD2016-4P

7F38400E08UCG from SJK(SHENZHEN CRYSTAL TECH), 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 XTAL1 passive Crystal terminal connected to one side of the quartz blank (pin 1 is diagonal to pin 3 in the crystal connection drawing); 38.400MHz fundamental, 8.0pF load capacitance.
2 GND power_in Marked GND in the top view crystal connection drawing; connect to ground (lid/case ground).
3 XTAL2 passive Crystal terminal connected to the other side of the quartz blank (pin 3 is diagonal to pin 1 in the crystal connection drawing); 38.400MHz fundamental, 8.0pF load capacitance.
4 GND power_in Marked GND in the top view crystal connection drawing; connect to ground (lid/case ground).

Key specifications

Parameter Value
Manufacturer SJK(SHENZHEN CRYSTAL TECH)
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
Output frequency (centre frequency) 38.4 MHz 2
Frequency tolerance -10 10 ppm at 25°C 2
Frequency stability over operating temperature -10 10 ppm -20~70°C 2
Frequency stability over operating temperature -30 30 ppm -40~85°C 2
Aging, 1st year -3 3 ppm/year @25°C 2
Load capacitance CL 8 PF 2
Shunt capacitance C0 3 PF 2
Driver level 10 µW Typical 2
Equivalent series resistance ESR 60 Ω 2
Operating temperature range -40 85 °C 2
Storage temperature range -40 125 °C 2
Frequency change after drop test -5 5 ppm Drop from 55cm onto board, 3 times 4
Resistance change after drop test -15 15 % Drop from 55cm onto board, 3 times 4
Frequency change after vibration -5 5 ppm 10~55Hz, 1.5mm amplitude, 2 h per axis (X, Y, Z) 4
Resistance change after vibration -15 15 % 10~55Hz, 1.5mm amplitude, 2 h per axis (X, Y, Z) 4
Frequency change after thermal shock -5 5 ppm 25 cycles, -40±3°C to 85±2°C 4
Resistance change after thermal shock -15 15 % 25 cycles, -40±3°C to 85±2°C 4
Frequency change after solder heat resistance -5 5 ppm Wave peak 260±10°C, 15±5 s 4
Resistance change after solder heat resistance -15 15 % Wave peak 260±10°C, 15±5 s 4
Frequency change after high temperature/humidity -5 5 ppm 60±2°C, 90~95% RH, 240 h 4
Resistance change after high temperature/humidity -15 15 % 60±2°C, 90~95% RH, 240 h 4
Frequency change after high temperature test -5 5 ppm 85±2°C, 240 h 4
Resistance change after high temperature test -15 15 % 85±2°C, 240 h 4
Frequency change after low temperature test -5 5 ppm -40±2°C, 240 h 4
Resistance change after low temperature test -15 15 % -40±2°C, 240 h 4
Frequency change after life test -5 5 ppm 5V, 25°C, 1000 h 4
Resistance change after life test 15 % 5V, 25°C, 1000 h 4

CAD (KiCad official)

  • Symbol: 7F38400E08UCG
  • Footprint: Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm
  • 3D model: SMD2016-4P (KiCad packages3D, STEP)
  • 3D model files: 7f38400e08ucg-etched.step / 7f38400e08ucg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 7f38400e08ucg.step / 7f38400e08ucg.glb are the bare package body.

Provenance

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

  • Datasheet: SJK(SHENZHEN CRYSTAL TECH) datasheet (4 pp, sha256 d63e33b4f6e6f3bb, retrieved 2026-10-22, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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