无线蓝牙最佳之选为SMD晶振ECS-240-18-33-JEN-TR3，The ECX-32 series of compact, surface mount crystals is available in an industry standard package ideal for IoT, Wi-Fi and Bluetooth. 
ECS’ ECX-32 series of compact 3.2 mm x 2.5 mm 4-pad MHz quartz crystals offer a wide frequency range of 8 MHz to 54 MHz. The crystals are available with tight stability and tolerance options of ±10 ppm and an extended -50ºC to +125ºC temperature range options. The standard part provides a 20 pF load capacitance but additional load capacitance options of 8 pF, 10 pF, 12 pF and 18 pF. These crystals are ideal for wireless, mobile, IoT, Wi-Fi and Bluetooth applications where board space is critical.

ECX-32系列紧凑的表面贴装晶体是物联网，Wi-Fi和蓝牙的理想行业标准封装。

ECS的ECX-32系列紧凑的3.2毫米x 2.5毫米4垫MHz石英晶体提供8 MHz至54 MHz的宽频率范围。该晶体具有紧密的稳定性和±10 ppm的公差选项，以及扩展的-50ºC至+125ºC的温度范围选项。标准部分提供了20 pF负载电容，但额外的负载电容选项为8 pF, 10 pF, 12 pF和18 pF，这些晶体是无线，移动，物联网，Wi-Fi和蓝牙应用的理想选择，这些应用的电路板空间是至关重要的。

编码ECS-240-18-33-JEN-TR3是一款无源晶振，贴片石英晶振，频率24 MHz，频率容差 ±20ppm 晶体 ，负载电容18pF 4-SMD，特征：占地面积3.2 mm x 2.5 mm x 0.8 mm，频率范围:8mhz ~ 54mhz，标准工业温度范围:-20ºC ~ +70ºC，可扩展的温度范围选项，紧密±10ppm公差，紧密±10ppm稳定性，符合RoHS和REACH标准.

应用范围：无线，移动，无线网络，蓝牙，物联网.

Image	Part Number	Frequency	Frequency Stability	Operating Temperature	Datasheet	Inventory
	ECS-240-18-33-JEN-TR3	24 MHz	±50ppm	-40°C ~ +85°C
	ECS-80-10-33-CKM-TR3	8 MHz	±10ppm	-20°C ~ +70°C
	ECS-160-18-33-AEN-TR3	16 MHz	±50ppm	-40°C ~ +85°C
	ECS-200-18-33-JGN-TR3	20 MHz	±30ppm	-40°C ~ +85°C
	ECS-250-10-33-AGM-TR3	25 MHz	±30ppm	-20°C ~ +70°C
	ECS-100-18-33-AGM-TR3	10 MHz	±30ppm	-20°C ~ +70°C

Manufacturer Part Number原厂编码	Manufacturer厂家	Series型号	Type 系列	Frequency	Operating Temperature    工作温度
ECS-270-18-9X	ECS晶振	ECS-3X9X	MHz Crystal	27MHz	-10°C ~ 60°C
ECS-270-18-9	ECS晶振	ECS-3x9	MHz Crystal	27MHz	-10°C ~ 60°C
ECS-160-18-9X	ECS晶振	ECS-3X9X	MHz Crystal	16MHz	-10°C ~ 60°C
ECS-250-18-9X	ECS晶振	ECS-3X9X	MHz Crystal	25MHz	-10°C ~ 60°C
ECS-110.5-18-9X	ECS晶振	ECS-3X9X	MHz Crystal	11.0592MHz	-10°C ~ 60°C
ECS-80-18-20BQ-DS	ECS晶振	CSM-8Q	MHz Crystal	8MHz	-40°C ~ 125°C
ECS-80-18-20BQ-DS	ECS晶振	CSM-8Q	MHz Crystal	8MHz	-40°C ~ 125°C
ECS-80-18-20BQ-DS	ECS晶振	CSM-8Q	MHz Crystal	8MHz	-40°C ~ 125°C
ECS-240-18-20BQ-DS	ECS晶振	CSM-8Q	MHz Crystal	24MHz	-40°C ~ 125°C
ECS-240-18-20BQ-DS	ECS crystal	CSM-8Q	MHz Crystal	24MHz	-40°C ~ 125°C
ECS-240-18-20BQ-DS	ECS晶振	CSM-8Q	MHz Crystal	24MHz	-40°C ~ 125°C
ECS-40-20-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	4MHz	-10°C ~ 70°C
ECS-40-20-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	4MHz	-10°C ~ 70°C
ECS-40-20-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	4MHz	-10°C ~ 70°C
ECS-80-20-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	8MHz	-10°C ~ 70°C
ECS-80-20-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	8MHz	-10°C ~ 70°C
ECS-80-20-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	8MHz	-10°C ~ 70°C
ECS-35-18-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	3.579545MHz	-10°C ~ 70°C
ECS-35-18-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	3.579545MHz	-10°C ~ 70°C
ECS-35-18-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	3.579545MHz	-10°C ~ 70°C
ECS-250-20-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	25MHz	-10°C ~ 70°C
ECS-250-20-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	25MHz	-10°C ~ 70°C
ECS-250-20-5PVX	ECS晶振	CSM-7SSX	MHz Crystal	25MHz	-10°C ~ 70°C
ECS-150-S-5P-TR	ECS晶振	CSM-7	MHz Crystal	15MHz	-10°C ~ 70°C
ECS-150-S-5P-TR	ECS晶振	CSM-7	MHz Crystal	15MHz	-10°C ~ 70°C

无线蓝牙最佳之选为SMD晶振ECS-240-18-33-JEN-TR3，贴片晶振本身体积小,超薄型石英晶体振荡器,特别适用于有目前高速发展的高端电子数码产品,因为晶振本身小型化需求的市场领域,小型,薄型是对应陶瓷振荡器(偏差大)和普通的石英晶体振荡器(偏差小)的中间领域的一种性价比较出色的产品.