CSM-4A
SMD QUARTZ CRYSTAL
The CSM-4A SMD version of the HC-49US leaded crystal. The CSM-4A has a case height of 5 mm maximum in a resistance-weld metal package. The CSM-4A is also pin out compatible with the EPSON MA-506.
FEATURES
• Cost effective • Resistance-weld sealing • Extended Temp range available • Tape & Reel (1,000 pcs)
PART NUMBERING GUIDE “EXAMPLE”
M ANUFACTURER ECS – FREQUENCY (4.000 MHz) 40 – LOAD CAPACITANCE* 20 – PACKAGE TYPE 28A
* Load capacitance (xx=xx pF, S=series resonance) Package Type examples (-28A = 5.0 mm max. height, -28AL = 4.0 mm max. height) Note: See Product Selection Guide for additional options including tighter tolerances or extended temperature range.
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PARAMETERS FREQUENCY RANGE CALIBRATION TOLERANCE FREQUENCY STABILITY ref @25˚C SHUNT CAPACITANCE LOAD CAPACITANCE DRIVE LEVEL OPERATING TEMPERATURE STORAGE TEMPERATURE AGING CHARACTERISTICS (Per Year) CONDITIONS @ +25˚C -10 ~ +70˚C C L ( Customer Specified) DL T OPR** T STG @ +25˚C ± 3˚C per year 10 -10 -30 20.0 standard MINIMUM 3.579545 TYPICAL MAXIMUM 70.000 ±30* ±50* 7 Series 500 +70 +85 ±5 UNITS MHz PPM PPM pF pF µW ˚C ˚C PPM
* Tighter specifications are available. **Extended temperature range available.
EQUIVALENT SERIES RESISTANCE / MODE OF OSCILLATION
FREQUENCY RANGE (MHz) 3.579545 ~ 4.999 5.000 ~ 5.999 6.000 ~ 6.999 7.000 ~ 8.999 MODE OF OSC Fundamental Fundamental Fundamental Fundamental MAX ESR Ω 200 150 100 80 FREQUENCY RANGE (MHz) 9.000 ~ 12.000 13.000 ~ 19.999 20.000 ~ 30.000 27.000 ~ 80.000 MODE OF OSC Fundamental Fundamental Fundamental 3rd O/T MAX ESR Ω 60 40 30 100
PACKAGE DIMENSIONS (mm)
12.5 max 4 3 9.0 2.2 4.85 max 2.0 REF 4 3 3.5
1
2
Height “H” (max.) -28A 5.0 mm -28AL 4.0 mm
2.2 1 2 2.3 2.3
Figure 2) CSM-4A Internal Connections H 1.2 ± 0.1
Figure 3) Land Pattern
1.3 ± 0.1 (X4)
9.0 ± 0.1 Figure 1) CSM-4A - Top, Side and End views
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM SMD CRYSTALS 18 18 SMD CRYSTALS
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