SMD7050 LUGUANG | Alldatasheet
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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 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 Gross Leak: 1.3*1 0-5Pa.m3/s Max Leakage Fine Leak: 2.1*1 0-9Pa.m3/s Max 1 0 ．老化率 ±5ppm Max/Y Aging 11．外形尺寸 7.0*5.0*1.1mm Dimensions Ⅱ．测试条件 Test Condition Load Capacitance Level of Drive 3.测试仪表 Equipment HP-E5100 Net analysis meter/AX-150U Heli0t-706/w Helium Leak Test SMD7050 SMD Crystal http://www.luguang.cn mail:lge@luguang.cn
SMD7050 晶体外型尺寸 D i m e n s i o n s U N I T : m m SMD7050 晶体外型尺寸（mm） 包装 P A C K I N G 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 pi eces package. The packing format may be subject to change by quantity. SMD7050 编带尺寸图 SMD7050 SMD Crystal http://www.luguang.cn mail:lge@luguang.cn
Ⅷ．可靠性试验项目 R e l i a b i l i t y T e s t I t e m s 1．机械性能试验 Mechanical Performance Tests 试 验 项 目 Test Item 试 验 方 法 Test Method 规格 No. Spec. No 1-1 耐冲击 shock 从75 厘米高，3 次，自由落在3 厘米的硬木板上 Orient the sample in any attitude and drop it three times from a height of 75 cm onto a hardwood board with a thickness of 3 cm A 1-2 耐振性 Vibration 振动频率10～55Hz,振幅 1.5mm 时间 1.5 分钟循环,在X、Y、 Z 轴方向各2 小时，总计6 小时。 Subject the sample to 1.5-minute cycl es of frequencies of 10 to 55 Hz and amplitudes of 1.5mm for two hours in each of the X,Y , and Z directions, or 6 hours in total. A 1-3 气密性 Leaking Test 用氦质谱仪测试或加压测绝缘电阻 Take measurements with a helium leakage detector，or measure insulation resistance under pressure. E 1． 回流焊曲线图 SMD7050 SMD Crystal http://www.luguang.cn mail:lge@luguang.cn
Ⅷ．可靠性试项目 Reliability Test Items 3．环境测试 Environmental Tests 试 验 项 目 Test Item 试 验 方 法 Test Method 规格 No. Spec. No. 2-1 耐寒性 Cold 在-40℃环境中非工作状态放置500 小时 Expose the sample in an inoperative mode to 500 hours in a -40℃ A 2-2 耐热性 Dry heat 在+85℃环境中非工作状态放置500 小时 Expose the sample in an inoperative mode to 500 hours in a 85℃ B 2-3 耐湿性 Damp heat 在温度+65℃，湿度95%环境中非工作状态放置500 小时 Expose the sample in an inoperative mode to 500 hours in a 65℃，and 95%RH B 2-4 热冲击 Thermal shock 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 30 minutes and +100℃ for the next 30 minutes in each cycles. A SPECIFICATIONS 规格 ※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℃ 规格 N o . Spec No. 规 格 Specification A 试验前后,频率变化在±5ppm 以内,等效电阻变化在要求范围内。 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. B 试验前后,频率变化在±10ppm 以内,等效电阻变化在要求范围内。 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. C 试验前后,外观未见明显损伤，气密性末破坏。 After each test, no visible damage shall be manifested, nor shall the hermetic seal break down. D 上锡量至少在90%以上. At least 90% of each dipped area shall be covered by fresh solder E 1×10-2 μPa．m3 / s M a x o r I R≥500MΩ SMD7050 SMD Crystal http://www.luguang.cn mail:lge@luguang.cn