首页 Jauch晶振

Jauch Crystal|Q 10.0-JXG53P4-12-30/50-T1-LF|TAIHETH

Jauch Crystal|Q 10.0-JXG53P4-12-30/50-T1-LF|TAIHETHJauch Crystal|Q 10.0-JXG53P4-12-30/50-T1-LF|TAIHETH

产品简介

Jauch Crystal|Q 10.0-JXG53P4-12-30/50-T1-LF|TAIHETH,Jauch晶振,欧美晶振,JXG53P4无源晶振,Q 10.0-JXG53P4-12-30/50-T1-LF晶振,陶瓷谐振器,5032mm晶振,石英晶振,四脚贴片晶振,频率10MHz,负载12pF,工作温度-40~85°C,频率稳定性30ppm,耐高温晶振,低老化晶振,抗冲击晶振,汽车音响控制器晶振,车载CCD相机晶振,图像处理晶振,GPS导航模块晶振.

产品详情

TH-1 890

Jauch Crystal|Q 10.0-JXG53P4-12-30/50-T1-LF|TAIHETH,Jauch晶振,欧美晶振,JXG53P4无源晶振,Q10.0-JXG53P4-12-30/50-T1-LF晶振,陶瓷谐振器,5032mm晶振,石英晶振,四脚贴片晶振,频率10MHz,负载12pF,工作温度-40~85°C,频率稳定性30ppm,耐高温晶振,低老化晶振,抗冲击晶振,汽车音响控制器晶振,车载CCD相机晶振,图像处理晶振,GPS导航模块晶振.

Jauch Crystal|Q 10.0-JXG53P4-12-30/50-T1-LF|TAIHETH特点:

玻璃密封陶瓷封装

所有版本均通过AEC-Q200认证

HMR版本具有更大的抗冲击和抗振动能力

RKE版本可承受150厘米的100倍跌落测试

TH-2 890

Jauch Crystal|Q 10.0-JXG53P4-12-30/50-T1-LF|TAIHETH规格表

TYPE JXG53P4
frequency range fund. AT-cut 10MHz
frequency tolerance at 25 °C ± 30ppm
load capacitance CL 12pF
shunt capacitance CO < 7 pF
storage temperature -40 °C ~ +125°C
shock resistance > 100 g(half sine pulse, 6.0 ms)*
drive level max. 100 µW (10 µW recommended)
aging < ±3 ppm first year

TH-3 890

Jauch Crystal|Q 10.0-JXG53P4-12-30/50-T1-LF|TAIHETH尺寸图

JXG53P4-2

JXG53P4

Jauch晶振原厂编码 制造商 型号 频率 频率容差 负载电容 Operating Mode 工作温度
Q 0.032768-JTX410-7-20-T1-LF Jauch晶振 JTX410 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-8-20-T1-LF Jauch晶振 JTX410 32.768kHz ±20ppm 8pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-10-20-T1-LF Jauch晶振 JTX410 32.768kHz ±20ppm 10pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-12.5-20-T1-LF Jauch晶振 JTX410 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-9-10-T1-LF Jauch晶振 JTX410 32.768kHz ±10ppm 9pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-7-10-T1-LF Jauch晶振 JTX410 32.768kHz ±10ppm 7pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-8-10-T1-LF Jauch晶振 JTX410 32.768kHz ±10ppm 8pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-10-10-T1-LF Jauch晶振 JTX410 32.768kHz ±10ppm 10pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-12.5-10-T1-LF Jauch晶振 JTX410 32.768kHz ±10ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-9-30-T1-LF Jauch晶振 JTX410 32.768kHz ±30ppm 9pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-8-30-T1-LF Jauch晶振 JTX410 32.768kHz ±30ppm 8pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-7-30-T1-LF Jauch晶振 JTX410 32.768kHz ±30ppm 7pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-12.5-30-T1-LF Jauch晶振 JTX410 32.768kHz ±30ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX410-10-30-T1-LF Jauch晶振 JTX410 32.768kHz ±30ppm 10pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-12.5-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-12.5-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-9-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-9-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-9-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-12.5-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-12.5-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-12.5-20-T1-HMR-50K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-20-T1-HMR-50K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-20-T1-HMR-50K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-20-T1-HMR-60K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-20-T1-HMR-60K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-20-T1-HMR-60K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-7-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-7-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-7-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-9-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-9-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-9-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-7-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-7-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-7-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-9-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-9-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-9-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-12.5-20-T2-HMR-70K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-12.5-20-T2-HMR-70K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-12.5-20-T2-HMR-70K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-7-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-7-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-7-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 7pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-12.5-20-T3-HMR-70K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-12.5-20-T3-HMR-70K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-12.5-20-T3-HMR-70K-LF Jauch晶振 JTX310 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-6-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 6pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-6-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 6pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-6-20-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 6pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-6-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 6pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-6-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 6pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-6-20-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 6pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX210-12.5-20-T1-LF Jauch晶振 JTX210 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX210-12.5-20-T1-LF Jauch晶振 JTX210 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX210-12.5-20-T1-LF Jauch晶振 JTX210 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX210-9-20-T1-LF Jauch晶振 JTX210 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX210-9-20-T1-LF Jauch晶振 JTX210 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX210-9-20-T1-LF Jauch晶振 JTX210 32.768kHz ±20ppm 9pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-6-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 6pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-6-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 6pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-6-20-T3-HMR-LF Jauch晶振 JTX310 32.768kHz ±20ppm 6pF Fundamental -40°C ~ 125°C
Q 0.032768-JTX310-12.5-10-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±10ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-10-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±10ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX310-12.5-10-T1-HMR-LF Jauch晶振 JTX310 32.768kHz ±10ppm 12.5pF Fundamental -40°C ~ 85°C
Q 0.032768-JTX210-12.5-20-T2-LF Jauch晶振 JTX210 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX210-12.5-20-T2-LF Jauch晶振 JTX210 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX210-12.5-20-T2-LF Jauch晶振 JTX210 32.768kHz ±20ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-12.5-10-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±10ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-12.5-10-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±10ppm 12.5pF Fundamental -40°C ~ 105°C
Q 0.032768-JTX310-12.5-10-T2-HMR-LF Jauch晶振 JTX310 32.768kHz ±10ppm 12.5pF Fundamental -40°C ~ 105°C
Q 19.2-JXS22-10-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-10-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-12-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-12-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-12-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-8-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-8-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-8-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-9-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-9-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 19.2-JXS22-9-10/10-WA-LF Jauch晶振 JXS22-WA 19.2MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-10-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-10-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-10-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-12-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-12-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-12-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-8-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-8-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-8-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-9-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-9-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 20.0-JXS22-9-10/10-FU-WA-LF Jauch晶振 JXS22-WA 20MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-10-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-10-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-10-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-12-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-12-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-12-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-8-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-8-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-8-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-9-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-9-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 24.0-JXS22-9-10/10-FU-WA-LF Jauch晶振 JXS22-WA 24MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 26.0-JXS21-12-10/10-FU-WA-LF Jauch晶振 JXS21-WA 26MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 26.0-JXS21-8-10/10-FU-WA-LF Jauch晶振 JXS21-WA 26MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 26.0-JXS21-9-10/10-FU-WA-LF Jauch晶振 JXS21-WA 26MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-10-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-10-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-10-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 10pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-12-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-12-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-12-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 12pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-8-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-8-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-8-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 8pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-9-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
Q 26.0-JXS22-9-10/10-FU-WA-LF Jauch晶振 JXS22-WA 26MHz ±10ppm 9pF Fundamental -20°C ~ 70°C
TH-6 890

我要下单

  • 姓名
  • 手机
  • 留言

返回顶部 返回头部

晶振快速通道

FAST TRACK