E1SCA18-14.7456M TR RoHS Pb E1S C A 18 -14.7456M TR Series RoHS Compliant (Pb-free) Resistance Welded Short HC-49/UP SMD Crystal Packaging Options Tape & Reel Nominal Frequency 14.7456MHz Frequency Tolerance/Stability 50ppm at 25C, 100ppm over -40C to +85C Mode of Operation AT-Cut Fundamental Load Capacitance 18pF Parallel Resonant ELECTRICAL SPECIFICATIONS Nominal Frequency 14.7456MHz Frequency Tolerance/Stability 50ppm at 25C, 100ppm over -40C to +85C Aging at 25C 5ppm/year Maximum Load Capacitance 18pF Parallel Resonant Shunt Capacitance (C0) 7pF Maximum Equivalent Series Resistance 70 Ohms Maximum Mode of Operation AT-Cut Fundamental Drive Level 1mWatt Maximum Storage Temperature Range -40C to +125C Insulation Resistance 500 Megaohms Minimum at 100Vdc ENVIRONMENTAL & MECHANICAL SPECIFICATIONS Fine Leak Test MIL-STD-883, Method 1014 Condition A Gross Leak Test MIL-STD-883, Method 1014 Condition C Lead Termination Sn 2m - 6m Mechanical Shock MIL-STD-202, Method 213 Condition C Resistance to Soldering Heat MIL-STD-202, Method 210 Resistance to Solvents MIL-STD-202, Method 215 Solderability MIL-STD-883, Method 2003 Temperature Cycling MIL-STD-883, Method 1010 Vibration MIL-STD-883, Method 2007 Condition A MECHANICAL DIMENSIONS (all dimensions in millimeters) LINE MARKING 1 3.20 MAX E14.745M E=Ecliptek Designator M=MHz 13.30 MAX 0.50 MIN (x2) 4.88 0.20 4.85 MAX 0.80 0.30 (x2) 11.60 MAX NOTE: Coplanarity 0.360 MAX www.ecliptek.com | Specification Subject to Change Without Notice | Rev F 8/12/2010 | Page 1 of 5 E1SCA18-14.7456M TR Suggested Solder Pad Layout All Dimensions in Millimeters 5.5 (X2) 2.0 (X2) 4.0 Solder Land (X2) All Tolerances are 0.1 www.ecliptek.com | Specification Subject to Change Without Notice | Rev F 8/12/2010 | Page 2 of 5 E1SCA18-14.7456M TR Tape & Reel Dimensions Quantity Per Reel: 1,000 units 4.0 0.2 2.0 0.1 DIA 1.5 0.1 0.4 0.1 11.5 0.1 24.0 0.3 A0* 10.75 0.10 12.0 0.2 B0* K0* *Compliant to EIA 481A 1.5 MIN 30.4 MAX DIA 40 MIN Access Hole at Slot Location 360 MAX DIA 50 MIN DIA 20.2 MIN DIA 13.0 0.2 2.5 MIN Width 10.0 MIN Depth Tape slot in Core for Tape Start 24.4 +2.0/-0.0 www.ecliptek.com | Specification Subject to Change Without Notice | Rev F 8/12/2010 | Page 3 of 5 E1SCA18-14.7456M TR Recommended Solder Reflow Methods Critical Zone TL to T P Temperature (T) TP Ramp-up Ramp-down TL TS Max TS Min tL t S Preheat t 25C to Peak tP Time (t) High Temperature Infrared/Convection TS MAX to TL (Ramp-up Rate) Preheat - Temperature Minimum (TS MIN) - Temperature Typical (TS TYP) - Temperature Maximum (TS MAX) - Time (tS MIN) Ramp-up Rate (TL to TP) Time Maintained Above: - Temperature (TL) - Time (tL) Peak Temperature (TP) Target Peak Temperature (TP Target) Time within 5C of actual peak (tp) Ramp-down Rate Time 25C to Peak Temperature (t) Moisture Sensitivity Level 3C/second Maximum 150C 175C 200C 60 - 180 Seconds 3C/second Maximum 217C 60 - 150 Seconds 260C Maximum for 10 Seconds Maximum 250C +0/-5C 20 - 40 seconds 6C/second Maximum 8 minutes Maximum Level 1 www.ecliptek.com | Specification Subject to Change Without Notice | Rev F 8/12/2010 | Page 4 of 5 E1SCA18-14.7456M TR Recommended Solder Reflow Methods Critical Zone TL to T P Temperature (T) TP Ramp-up Ramp-down TL TS Max TS Min tL t S Preheat t 25C to Peak tP Time (t) Low Temperature Infrared/Convection 245C TS MAX to TL (Ramp-up Rate) Preheat - Temperature Minimum (TS MIN) - Temperature Typical (TS TYP) - Temperature Maximum (TS MAX) - Time (tS MIN) Ramp-up Rate (TL to TP) Time Maintained Above: - Temperature (TL) - Time (tL) Peak Temperature (TP) Target Peak Temperature (TP Target) Time within 5C of actual peak (tp) Ramp-down Rate Time 25C to Peak Temperature (t) Moisture Sensitivity Level 5C/second Maximum N/A 150C N/A 30 - 60 Seconds 5C/second Maximum 150C 200 Seconds Maximum 245C Maximum 245C Maximum 2 Times / 230C Maximum 1 Time 10 seconds Maximum 2 Times / 80 seconds Maximum 1 Time 5C/second Maximum N/A Level 1 Low Temperature Manual Soldering 185C Maximum for 10 seconds Maximum, 2 times Maximum. High Temperature Manual Soldering 260C Maximum for 5 seconds Maximum, 2 times Maximum. www.ecliptek.com | Specification Subject to Change Without Notice | Rev F 8/12/2010 | Page 5 of 5