“M49G” series MERCURY Surface Mount Crystals RoHS Compliant Since 1973 • Model M49G is the surface mount version of the HC-49/US low profile crystal. • Lowest cost. The most economic solution for automatic assembly. SPECIFICATIONS Crystal Holder Prefix: M49G: 4.2 mm seated height. 3.2~30.0 MHz AT-cut Fundamental mode Mode of Oscillation: 27.0~70.0 MHz AT-cut 3rd Overtone mode 24.0~48.0 MHz BT-cut Fundamental mode Calibration Tolerance: Frequency Stability: Shunt Capacitance (Co): Equivalent Series Resistance (E.S.R.) ±30 ppm (±0.003 %) at 25°C AT-cut: ±30 ppm (±0.003 %) over -10 to +60°C BT-cut: ±100 ppm (±0.01 %) over -10 to +60°C 7pF maximum Frequency Osc. Mode ESR max. Frequency Osc. mode ESR max. 3.2 ~ 3.4 AT funda. 300 Ω 13.0 ~ 24.0 AT funda. 45 Ω 3.5 ~ 4.0 AT funda. 150 Ω 24.1 ~ 30.0 AT funda. 40 Ω 4.1 ~ 4.9 AT funda. 120 Ω 24.0 ~ 48.0 BT funda. 40 Ω 5.0 ~ 5.9 AT funda. 100 Ω 27.0 ~ 30.0 AT 3rd O/T 150 Ω 6.0 ~ 8.9 AT funda. 80 Ω 30.0 ~ 50.0 AT 3rd O/T 100 Ω 9.0 ~ 9.9 AT funda. 60 Ω 50.1 ~ 70.0 AT 3rd O/T 80 Ω 10.0 ~ 12.9 AT funda. 50 Ω Load Capacitance (CL): Series ( spec. code is “S”) or Parallel (If parallel, please specify CL value, typical CL ranges from 8 to 32 pF) Drive Level: 500 µW maximum Aging: Less than ±3 ppm per year. At +25°C Reflow Soldering: 10 seconds maximum at +260°C Storage Temperature: -40 to +85°C Packaging 12 mm pitch; 24 mm tape; 360 mm reel; 1000 pcs per reel. Note: Tighter tolerance, tighter stability and lower ESR are available. MERCURY www.mercury-crystal.com Taiwan: TEL (886)-2-2695-7099, FAX (886)-2-2695-7473, e-mail: [email protected] U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail: [email protected] MERCURY Page 1 of 2 Date: Sept.. 1, 2006 Rev. 0 “M49G” series PACKAGE DIMENSIONS AND SUGGESTED PAD LAYOUT Since 1973 Unit: mm [inches] 12.7 [0.500] 11.35 [0.447] 3.0 [0.118] Poly Phenylene Sulfide insulator [0.145] 3.68 1.5 [0.059] [0.216] 5.5 MEC [0.185] 4.7 0.63 [0.025] 11.4 [0.449] 4.2 [0.165] 0.65 [0.025] MERCURY Surface Mount Crystals RoHS Compliant 4.4 [0.173] Environmental Performance Specifications Green Requirement Moisture Sensitivity Level Storage temp. range Humidity Solderability Reflow Vibration Shock Suggested Solder Reflow Profile RoHS Compliant Level 1 -40 to +85°C 85% RH, 85°C, 48 hours MIL-STD-883, method 2002 260°C for 10 sec. MIL-STD-883, method 2007, condition A MIL-STD-202F method 213, test condition C. Part Number Format and Example: Example: M49G-10.245-18P-30/50/-10+70/50R ": customer to specify " " " " " " M49G — 10.245 — 18P — 30 / 50 / 10+70 / 50R dash dash slash t n o p dash q slash r slash s n: M49G series; o: Frequency in MHz p: Parallel Load Capacitance in pF or use “S” for SERIES resonance q: Frequency tolerance in ppm; r: Frequency stability in ppm; s: Operating temperature in °C; t: ESR (Equivalent Series Resistance) in max. ohms MERCURY Page 2 of 2 Date: Sept.. 1, 2006 Rev. 0