EURO QUARTZ 49USMX CRYSTALS 3.2MHz to 70.0MHz 49SMD Standard and Low Profile FEATURES Low cost crystal for mass market applications Surface mount version of HC49-4H crystal Comprehensie stockholding of standard frequencies Customized parts readily available Industry-standard package Low-profile versions available OUTLINE & DIMENSIONS DESCRIPTION 49USMX crystals are low profile surface mount crystals with the same footprint as standard HC49 and HC49-4H crystals. 49USMX crystals are ideal for use in low cost, mass-market applications but are also able to be produced to close tolerances when required. SPECIFICATION Frequency Range: Calibration Tolerance: Frequency Stability over Temp: Storage Temperature Range: Shunt Capacitance (C0): Load Capacitance (CL): Ageing: Drive Level: Reflow Soldering: Holder: Packaging: RoHS Status: 3.2MHz to 70MHz ±30ppm at 25°C standard ±10ppm available from ±10ppm over -10° ~ +60° from ±15ppm over -40° ~ +85°C -50° ~ +105°C 4pf typical, 7pF maximum Series or from 8pF to 32pF (Customer specified) ±3ppm maximum (Ta = 25°C, drive 100mW) 100mW typical, 500mW maximum 260°C, 10s maximum Hermetic seal, resistance weld EIA 24mm tape and reel 1000 pieces per reel RoHS Compliant EQUIVALENT SERIES RESISTANCE PART NUMBER GENERATION Frequency Range MHz Crystal Cut/ Mode ESR Ω Max. 3.2 ~ 3.4 3.5 ~ 6.0 6.1 ~ 10.0 10.1~30.0 27.0 ~ 30.0 30.1 ~ 50.0 50.1 ~ 70.0 AT-Fund. AT-Fund. AT-Fund. AT-Fund. AT-3rd OT AT-3rd OT AT-3rd OT 300 120 60 40 150 100 80 Example: 12.000MHz 49USMX/30/50/-20+70/18pF/ATF Nominal Frequency Package (height variants): 49USMX (4.2mm) 49USMXL (3.0mm) 49USMXL25 (2.5mm) Calibration tolerance at 25°C (±ppm) Temperature Stability over temp. range (±ppm) Operating Temp. Range (°C) Load Capacitance Crystal Mode ATF = AT-cut Fundamental AT3 = AT-cut 3rd Overtone EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk