SWCX1 Datasheet, PDF (1/2 Pages) STATEK CORPORATION – Radiation Resistant, Miniature Surface Mount and Leaded Quartz Crystals

EURO QUARTZ
SWCX1 SWEPT QUARTZ CRYSTALS
Radiation-Resistant Miniature Crystals
8MHz to 250MHz
FEATURES
Radiation tolerance up to 100kRad total dose
High shock and vibration resistance
Ultra-high reliability
Custom designs available
Military and space screening available
Low ageing
Critical processes performed in Class 10 cleanroom
DESCRIPTION
SWCX1 swept quartz crystals are designed for applications requiring
resistance to ionizing radiation. SWCX1 crystals are produced from
cultured quartz that is electrically 'swept' at high temperature to
remove interstital impurities within the crystalline structure. This
process produces crystal resonators that are superior to those utilizing
non-swept quartz on that they maintain their frequency and other
electrical characteristics under exposure to radiation levels of
100kRad (1kGy) and greater.
Further, as such applications requiring radiation resistance typically
also require various degrees of of high-reliability components, we
offer these resonators in three distinct screening options to meet
mission critial programme requirements from engineering to flight.
APPLICATIONS
· Military and aerospace
· Satellite
· Space exploration systems
· Deep space probes
· Telemetry
PACKAGING OPTIONS
SWCX1 crystals are avaialble in SMD or leaded formats.
Supplied: Tray packed (option for SM crystals)
16mm tape on 178mm or 330mm reels (only for SM crystals)
Per EIA 481 (see tape and reel data sheet 10109)
PACKAGE DIMENSIONS
Dim.
SWCX1
Surface-mount
(mm)
A
B
C (max.)
D
E
F
8.00
3.56
1.78
1.14
1.52
-
OUTLINES
SWCX1
Leaded (03)
(mm)
8.00
3.56
1.78
7.87
1.02
3.81
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ELECTRICAL SPECIFICATION
Specifications are typical unless otherwise noted.
Package Style:
Frequency Range:
Motional Resistance (R1) @ 25°C
at 32MHz:
at 155.2MHz:
Motional Capacitance (C1) @ 25°C
at 32MHz:
at 155.2MHz:
Shunt Capacitance (C0) @25°C:
Quality Factor (Q) @ 25°C:
Load Capacitance (CL)
<50MHz:
>50MHz:
Drive Level
<50MHz:
>50MHz:
SWCX1 (SM)
SWCX1 (03)
8.0MHz to 250.0MHz
25Ω
15Ω
6.2fF
1.0fF
2.3pF
30k
20pF
10pF
500µW maximum
200µW maximum
GENERAL SPECIFICATION
Specifications are typical unless otherwise noted.
Calibration Tolerance @ 25°C:
Temperature Stability:
Ageing First Year:
Shock Survival*:
Vibration Survival:
±100ppm
or tighter, as required
Refer to CX1 AT datasheet
±2ppm maximum.
3,000g peak 0.3ms, ½ sine
20g, 10~2,000Hz
swept sine
TERMINATIONS - PLATING
Designation
SM1
SM2
SM3 / 03
Termination
Gold Plated
Solder Plated
Solder Dipped
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: [phone] Fax: [phone] [e-mail] www.euroquartz.co.uk