SHOULDER ELECTRONICS LIMITED CRYSTAL RESONATOR Data Sheet PRODUCT 产 品: CRYSTAL RESONATOR MODEL NO 型 号: TF26 PREPARED 编 制: Fengyu CHECKED 审 核: York APPROVED 批 准: Lijiating DATE Http://www.shoulder.cn 日 期: 2008-01-25 Page: 1 SHOULDER ELECTRONICS LIMITED 1.Hold Type: RoHS 2X6 Parameter Frequency Range Frequency Tolerance Turnover temperature Operating Temperature Range Value 25.000-150.000KHZ ±30PPM MAXIMUM Load Capacitance Insulator Resistance -10℃ to 60℃ 35KΩ REF TO 25℃ 1.7PF MAXIMUM 12.5PF TYPICAL 500 MΩ DC100V±15V 1μW Drive Level Aging REF TO 25℃ 25±5℃ Series resistance Shunt Capacitance Condition ±5PPM/PEAR at 25℃±3℃ 2.Dementions . Http://www.shoulder.cn Page: 2 SHOULDER ELECTRONICS LIMITED 3.PACKAGE 1) 150g/bag 2) 0.85kg/box 1bag/1000pcs 1box/5000pcs 6.5 11.5 17.5 4. FREQUENCY VS. TEMPERATURE CURVE 5. MECHANICAL AND ENVIRONMENTAL SPECIFICATION 1) Vibration Conditions : Http://www.shoulder.cn Vibration Frequency Vibration Amplitude 10 to 55Hz 1.5mm Page: 3 SHOULDER ELECTRONICS LIMITED Cycle Time 1-2min (10-55-10Hz) Direction X.Y.Z Duration 2h/each direction Results: Frequency Change: ±10ppm Max. Resistance Change: ±15% or 5kohm Max. 2) Shock Conditions: 3 Times free drop from 75cm height to hard wooden board of thickness more than 30mm Results: Frequency Change: ±10ppm Max. Resistance Change: ±15% or 5kohm Max. 3) Leakage Conditions: Put crystal units into a hermetic container and Helium for 0.5-0.6Mpa, and keep it for 1h; Check the leakage by a Helium leak detector Results: Leakage: 1x10¯8mbar.l/s Max. 4) Solderability Conditions: Put the leads of crystal units into solder melted tank for 3 to 5s Temperature of solder melted tank is 245℃±5℃ Results: 5) Reflow soldering Temperature cycling test Conditions: Next Fig.1 for TF26 families. Results: 6) The dipped surface of the leads should be at least 95% covered with continuous new solder coating Resistance Change:±25% or 10kohm Max. Lead Strength (DIP) Conditions: The crystal lead with the 0.9kg(9N)power(keep it for 30s±5s) and bend the crystal lead 90° with 0.45kg power and two Http://www.shoulder.cn Page: 4 SHOULDER ELECTRONICS LIMITED Results: 7) times （which you want to bend should be more than 1.5mm from the case) The crystal lead is not abnormity High Temperature Endurance Conditions: The crystal units shall be put in somewhere for 2 hours at temperature of 85℃±2℃,then keep it for 1 to 2 hours under room temperature Results: Frequency Change:±10ppm Max. Resistance Change:±15% or 5kohm Max. 8) Low Temperature Endurance Conditions: The crystal units shall be put in somewhere for 2 hours at temperature of -25℃,then keep it for 1 to 2 hours under room temperature Results: Frequency Change: ±10ppm Max. Resistance Change: ±15% or 5kohm Max. 9) Low Temperature Endurance Conditions: somewhere at 40℃ in relative humidity of 90-95% for 48 hours, then keep it for one or two hours under room temperature Results: Frequency Change: ±10ppm Max. Resistance Change: ±15% or 5kohm Max. 10) Temperature Cycle Conditions: Temperature shift from low(-40℃) to high(100℃,keep 30 minutes),satisfy high(100 ℃ ) to low(-40 ℃ ,keep 30 minutes),then go up to room temperature for 5 cycles Results: Frequency Change: ±10ppm Max. Resistance Change: ±15% or 5kohm Max. 11) Salt Spray Test Conditions: Put the crystal units in the salt spray room(salt density:5%)at the temperature of 35℃ for 96 hours. Then clean it with water and dry its surface. Results: The appearance shall has no abnormity and soldering is good. Frequency Change: ±10ppm Max. Resistance Change: ±10% or 5kohm Max. 6. PROCESSING INSTRUCTIONS The following instructions and information are provided for the purpose of having the user understand the proper way to process our crystal products to prevent problems prior to use and enhance the reliability of the equipment to which they are applied. 1) When dropped by mistake The crystal units are designed and manufactured to resist physical shocks. However, when the crystal units are subjected to excessive impact such as being dropped onto the floor or giving shocks during processing, need to make sure its satisfactory performance before using it. 2) Soldering Http://www.shoulder.cn Page: 5 SHOULDER ELECTRONICS LIMITED Lead wires should be soldered within 3 seconds with the soldering iron heated to a temperature no higher than 300℃ In solder-dip processing, the leads should be soldered within 10 seconds with a temperature no higher than 260℃.Mounting in upright is recommendable to prevent the heat conduction directly to the body of the crystal unit. 3) To bend the lead of cylinder type products When the lead of cylinder type crystal units need to be bent, leave more than 1.5mm（3.0mm is recommendable) of lead from the case in order to prevent from any cracks of the hermetic sealing glass at the root of the lead, and use a jig to bend if possible. When bending the lead of cylinder type crystal units, do not scrape off the soldering plating from the lead surface. 4) Mounting : A: “Mounting” of cylinder type products Soldering the body of the cylinder type crystal units with PCB must be avoided due to deteriorate the characteristics or damage the products. Rubber adhesive is recommended B: When the lead needs to be bent by hand, please follow the instruction as below: Hold the body of the cylinder type crystal unit in fingers; Pick at the part with tweezer, which you want to bend. There should be more than 1.5mm(3.0mm is recommended) from the body case; Bend the lead 90° by tweezer without pulling the lead strongly .If pulling the lead strongly may cause any cracks of hermetic sealing glass at the root of the lead and may cause the leakage and the characteristics to deteriorate. 5) Cleaning Crystal units may be sffected and destroyed at worst by supersonic cleaning or supersonic welding. Please be sure to check if your cleaning and welding process sffects any damage to crystal units before using. Some kinds of cleaning fluid may cause any damage to crystal units. Please be sure to check suitability of the cleaning fluid in advance. 6) Storage Storage of crystal units under higher temperature or high humidity for a long term may affects frequency stability or solderability. Please store the crystal units under the normal temperature and humidity without exposing to direct sunlight and dew condensation , and avoid the storage of crystal units for more than 6 months, and mount them as soon as possible after unpacking. Http://www.shoulder.cn Page: 6 SHOULDER ELECTRONICS LIMITED