SMD7050 SMD Crystal Ⅰ晶振电性能 Electrical Characteristics 1．标称频率 14.7456 MHZ Nominal Frequency 2．振动模式 基频 / AT 切 Mode of vibration 3．工作温度范围 － 20 ℃～＋ 70 ℃ Operating Temperature Range 4．保存温度范围 －55℃～＋125℃ Storage Temperature Range 5．频率偏差 ± 20 ppm Max Adjustment Tolerance 6．温度偏差 ± 30 ppm Max Tolerance over the Temperature Range 7．等效电阻 50 Ω Max．at 25℃ Equivalent Series Resistance 8．静电容 5.0 pF Max Shunt Capacitance 9．气密性测试 Leakage 10．老化率 Aging 11．外形尺寸 Dimensions Gross Leak: -5 -9 Fine Leak: 3 1.3*10 Pa.m /s Max 3 2.1*10 Pa.m /s Max ±5ppm Max/Y 7.0*5.0*1.1mm Ⅱ．测试条件 Test Condition 1.负载电容 Load Capacitance 2.激励功率 Level of Drive 3.测试仪表 Equipment http://www.luguang.cn ____18.0____pF ____100___μW HP-E5100 Net analysis meter/AX-150U Heli0t-706/w Helium Leak Test mail:[email protected] SMD7050 SMD Crystal SMD7050 晶体外型尺寸 Dimensions UNIT: mm SMD7050 晶体外型尺寸（mm） 包装 PACKING 每 1000 只晶体进行编带包装，每 1 万只晶体放入一包装盒内。同时，包装 形式也依赖于具体数量而更改。 Deposit 1000 pieces of the quartz crystal units in tape model, and pack enough bags in a packing case to make a 10,000 pieces package. The packing format may be subject to change by quantity. SMD7050 编带尺寸图 http://www.luguang.cn mail:[email protected] SMD7050 SMD Crystal Ⅷ．可靠性试验项目 1．机械性能试验 Reliability Test Items Mechanical Performance Tests 试 验 项 目 试 验 方 法 规格 No. Test Test Method Spec. No Item 从 75 厘米高，3 次，自由落在 3 厘米的硬木板上 耐冲击 1-1 shock Orient the sample in any attitude and drop it three times from a A height of 75 cm onto a hardwood board with a thickness of 3 cm 振动频率 10～55Hz,振幅 1.5mm 时间 1.5 分钟循环,在 X、Y、 耐振性 1-2 Vibration Z 轴方向各 2 小时，总计 6 小时。 Subject the sample to 1.5-minute cycles of frequencies of 10 to 55 A Hz and amplitudes of 1.5mm for two hours in each of the X,Y, and Z directions, or 6 hours in total. 用氦质谱仪测试或加压测绝缘电阻 气密性 1-3 Leaking Test Take measurements with a helium leakage detector，or measure E insulation resistance under pressure. 1．回流焊曲线图 http://www.luguang.cn mail:[email protected] SMD7050 SMD Crystal Ⅷ．可靠性试项目 Reliability Test Items 3．环境测试 Environmental Tests 试 验 项 目 试 验 方 法 规格 No. Test Test Method Spec. No. Item 耐寒性 2-1 在-40℃环境中非工作状态放置 500 小时 Cold 2-2 Expose the sample in an inoperative mode to 500 hours in a -40℃ 耐热性 在+85℃环境中非工作状态放置 500 小时 Dry heat Expose the sample in an inoperative mode to 500 hours in a 85℃ Damp heat 热冲击 2-4 Thermal shock B 在温度+65℃，湿度 95%环境中非工作状态放置 500 小时 耐湿性 2-3 A Expose the sample in an inoperative mode to 500 hours in a B 65℃，and 95%RH 在-40℃保持 30 分钟，100℃保持 30 分钟，循环 5 次。 Subject the sample to 5 temperature variation cycles at -40℃ for A 30 minutes and +100℃ for the next 30 minutes in each cycles. SPECIFICATIONS 规格 规格 No. 规 Spec No. Specification 格 试验前后,频率变化在±5ppm 以内,等效电阻变化在要求范围内。 A Any variation between the pre- and post-test frequencies shall remain within ±5ppm. The post-test equivalent series resistance shall remain within its specified tolerance range. 试验前后,频率变化在±10ppm 以内,等效电阻变化在要求范围内。 B Any variation between the pre- and post-test frequencies shall remain within ±10ppm. The post-test equivalent series resistance shall remain within its specified tolerance range. 试验前后,外观未见明显损伤，气密性末破坏。 C After each test, no visible damage shall be manifested, nor shall the hermetic seal break down. 上锡量至少在 90%以上. D E At least 90% of each dipped area shall be covered by fresh solder 1×10-2 μPa．m3 /s Max or IR≥500MΩ ※测试在室温 25±2℃环境中进行，每次试验后，样品必须在 25±2℃环境中 恢复 2 小时以上。 ※ Measurements shall be taken at 25±2℃,and after each test, the sample be exposed to two hours at 25±2℃ http://www.luguang.cn mail:[email protected]