EURO
QUARTZ
4 x 2.5 x 0.6mm SMD
FEATURES
Miniature package: 4.0 x 2.5 x 0.6mm
Gold-plated ceramic base with metal seam-welded package
Very low ageing
Optimized for Wi-Fi applications
High shock and vibration resistance
X42-W CRYSTALS
WI-FI APPLICATIONS
DESCRIPTION
X42 crystals are micro-miniature surface-mount mount crystals. The
crystals have a gold plated ceramic base with a seam welded metal lid
providing a stable crystal with very low ageing. The rugged construction
ensures that this crystal has high shock and vibration resistance. The
crystal has been optimized for WI-Fi applications: Bluetooth/ Bluetooth
Low Energy (BLE), Bluetooth Smart, Zigbee, ISM, Wi-FI / WLAN, LPWAN
and others.
OUTLINE & DIMENSIONS
SPECIFICATION
Standard Frequencies*:
Operating Mode:
Calibration Tolerance at 25ºC:
Frequency stability
-20° to +70°C
-40° to +85°C
-40° to +105°C
Storage Temperature:
Equivalent Series Resistance:
Shunt Capacitance (C0):
Load Capacitance (CL):
Ageing:
Drive level:
Reflow Soldering:
Packaging:
16.0, 19.2, 20.0, 24.0, 25.0,
26.0, 27.120, 30.0, 32.0, 37.40,
38.40, 40.0, 48.0, 52.0MHz
AT-Cut Fundamental:
±10ppm
±10ppm
±15ppm
±30ppm
-50°~+105°C
2pF to 4pF typical, 5pF maximum
Series or from 10pF to 32pF
<±ppm per first year at +25°C
100 µW maximum
10s maximum at 260°C twice
or 180s at 230°C, once.
12mm EIA tape and reel
EQUIVALENT SERIES RESISTANCE (ESR)
Frequency
Range MHz
12.0 ~ 14.9
15.0 ~ 29.9
30.0 ~ 54.0
Crystal Cut/
Mode
AT Fund.
AT Fund.
AT Fund.
ESR
Ω Max.
80
50
40
PART NUMBER GENERATION
Part numbers for X42-W crystals are generated as follows:
Example:
16.000MHz X42-W-18pF
Nominal Frequency
Package size and
WiFi optimisation
ENVIRONMENTAL PERFORMANCE
RoHS Status:
Storage Temperature Range:
Humidity:
Hermetic Seal:
Solderability:
Reflow:
Vibration:
Shock:
Compliant
-55° to +105°C
85% RH, 85°C for 48 hours
Leak rate 2x10
-8
ATM -cm
3
/s max.
MIL-STD-202F Method 208E
260°C for 10 sec (see diagram)
MIL-STD-202F Method 204,
35±5 mins, 50 to 2000Hz
MIL-STD-202F Method 213B, test
Condition E, 50g 11ms.
Load Capacitance
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
Microcontroller MCU
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