EURO QUARTZ 74USMX CRYSTALS 12.0MHz to 40.0MHz 74USMX Low Profile Crystal FEATURES Low profile, reduced size SMD crystal Reduces footprint of 49USMX crystals by 50% Customized parts readily available SIZE COMPARISON 49USMX OUTLINE & DIMENSIONS 74USMX DESCRIPTION 74USMX crystals are low profile surface mount crystals with a 50% reduced footprint over the popular 49USMX type crystals. 74UMX crystals are ideal for use in low cost, mass-market applications. SPECIFICATION Frequency Range: Calibration Tolerance: Frequency Stability over Temp: Storage Temperature Range: Shunt Capacitance (C0): Load Capacitance (CL): 12.0MHz to 40MHz ±30ppm at 25°C standard from ±50ppm over -10° ~ +70° -40° ~ +85°C 4pf typical, 7pF maximum Series or from 10pF to 32pF (Customer specified) ±5ppm maximum (Ta = 25°C, drive 100mW) 100mW maximum 260°C, 10s maximum Hermetic seal, resistance weld EIA 24mm tape and reel 3000 pieces per reel RoHS Compliant Ageing: Drive Level: Reflow Soldering: Holder: Packaging: RoHS Status: PART NUMBERS Example: 12.000MHz 74USMX/25/50/-10+70/18pF Nominal Frequency EQUIVALENT SERIES RESISTANCE Frequency Range MHz 12.0~15.999 16.0~29.999 30.0 ~ 40.0 ESR Ω Max. 60 50 40 Package Calibration tolerance at 25°C (±ppm) from ±10ppm to ±25ppm Temperature Stability over temp. range (±ppm) from ±25ppm to ±100ppm* (* ) Operating Temp. Range (°C) Load Capacitance (10pF to 32pF) 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