Crystal Clock Oscillator Crystal Oscillators ■ ■ How to Handle 2700-series ■ Example of Lead-free Soldering Conditions (Infrared Soldering) Temperature(°C) 300 200 100 0 Peak 260±5°C/10sec. Max 4.5°C/s max 4.5°C/s max 230°C over 30±10sec. 150–180°C 90±30sec. 4.5°C/s max Time ● Soldering conditions The product’s characteristics may deteriorate, depending on soldering conditions. Use the product within the following limitations: * At 260°C or less within 10 seconds or at 230°C or less within 60 seconds ● Shock resistance This product has been designed to be highly resistant to shock (it is guaranteed that it will not be damaged when dropped three times from a height of 75 cm onto a hard wooden board or at 29,400/s2 in each of the half-wave sine-wave X, Y, and Z directions three times). However, if the unit is dropped by mistake, measure the performance (oscillation check) of the product again. ● Cleaning Ultrasonic cleaning of this product is possible, but depending on the cleaning conditions the product’s oscillator may suffer a resonance fracture. Before ultrasonic cleaning, make sure to check the conditions. ● Others • Because CMOS is used for this product, pay great care to static electricity in the same way as for normal CMOS IC. • The #2 terminal (GND) is a ground terminal. Therefore, if it is mistaken for the #4 terminal (VDD) and a reverse voltage applied, it may suffer internal fractures Make sure to connect the terminal correctly. ■ Packing of 2700-series Crystal Oscillators ■ Tape ■ Reel 2.0 0.3 5.4 5.5 φ13.0 Pull direction 3.5 φ180 4.0 φ60 φ1.5 12.0 φ1.5 1.2 1.75 Product direction (Standard) 8.0 1.40 13.0 Up to 1,000 pieces per reel are boxed and shipped with the taping method shown above. *Note: The packing shown above is the standard method used for a large order. Packing and shipping of small orders, samples, etc. differs, depending on quantity. cc85_101021_2700cla_e Crystal Clock Oscillator ■ Guaranteed Items ■ of 2700 Series ● The environmental and mechanical characteristics of the 2700 Series are guaranteed by conducting the following tests: No. Test Items Conditions Specifications 1 Thermal shock resistance 100 cycles (one cycle is conducted for 30 minutes at –40 °C and for 30 minutes at +85 °C.) *1 2 High temperature and high humidity resistance Subject to a temperature of +85 °C, in humidity of 80 to 85 %, and for 500 hours (nonactive) *1 3 85 °C aging 85 °C (nonactive), for 720 hours Total amplitude: *1 4 Vibration resistance Total amplitude: 1.52 mm or 196 m/s 2, frequency: 10 to 2,000 Hz, and logarithmic frequency sweep for 20 minutes in each of the three orthogonal directions for four hours (12 hours in total) *1 5 Shock resistance Impact acceleration: 29,400 m/s2, impact time: 0.3 ms, and half-wave sine wave in each of the three orthogonal directions, three times *1 6 Free drop impact resistance Dropped three times from a height of 75 cm onto a hard wooden board *1 7 Soldering property Immersed in a solder bath at a temperature of +230±5 °C for 3.5±1 seconds 8 Soldering heat resistance Reflow is conducted three times at a warm-up temperature of 180 °C for 90±30 seconds and at the peak temperature of 260±5 °C for up to 10 seconds (at 230 °C or more for 30±10 seconds). Ninety-five percent or more of the soldered part must be covered with solder. *1 (*1)After the above tests have been conducted, the tested product must then meet the electric characteristic specifications. In addition, the change amount of F before and after the above tests must follow ΔF/F ≤ ±10 x 10–6. The electric characteristic specifications refer to the standard specifications of the following items: (Current consumption, Tr/Tf, VOL/VOH symmetry, current consumption during standby, and standby function) ■ 2700-series Package Indications ■ 2700 Series Symbol for a model name #1 indication Lot number (three digits) Q : 2725Q T : 2725T Z : 2725Z Output frequency Trace code ● Because of space limitations, the output frequency is indicated as six digits including the decimal point. Therefore, 14.31818 MHz is indicated as 14.318. cc85_100707_warranty_e