反输出霍尔开关

AR248R是一款基于混合信号CMOS 技术的无极性霍尔开关，这款IC 采用了先进的斩波稳定技术，因而能够提供准确而稳定的磁开关点。在电路设计上，AR248提供了一个内嵌的受控时钟机制来为霍尔器件和模拟信号处理电路提供时钟源，同时这个受控时钟机制可以发出控制信号使得消耗电流较大的电路周期性的进入“休眠”模式；同样通过这个机制，芯片被周期性的“唤醒”并且根据预定好的磁场强度阈值检测外界穿过霍尔器件磁场强度的大小。如果磁通密度高于“操作点”阈值或者低于“释放点”阈值，则开漏输出晶体管被驱动并锁存成与之相对应的状态。而在“休眠”周期中，输出晶体管被锁定在其先前的状态下。在电池供电应用中，这种设计对于

ANER

安尔芯

VHF POWER MOSFET

DESCRIPTION: The ASI BLF248is a Balanced N-Channel Enhancement-Mode RF Power MOSFET Designed for AM and FM Power Amplifier Applications up to 250 MHz. FEATURES INCLUDE: • PG= 11 dB Typical at 225 MHz • 5:1Load VSWR Capability • Omnigold™ metalization system

文件：22.49 Kbytes 页数：1 Pages

ASI

VHF push-pull power MOS transistor

DESCRIPTION Dual push-pull silicon N-channel enhancement mode vertical D-MOS transistor, designed for large signal amplifier applications in the VHF frequency range. The transistor is encapsulated in a 4-lead SOT262 A1 balanced flange envelope, with two ceramic caps. The mounting flange provides

文件：105.14 Kbytes 页数：13 Pages

PHI

PHI

1/2 (12.7 mm) Conductive Plastic and Cermet Potentiometers

FEATURES • Model 248: 0.5 W at 70 °C (conductive plastic element) • Model 249: 1 W at 70 °C (cermet element) • Cost effective panel potentiometer • PCB mounting • Tests according to CECC 41000 or IEC 60393-1 • Material categorization: for definitions of compliance please see www.vishay.com

文件：82.21 Kbytes 页数：5 Pages

VISHAYVishay Siliconix

威世威世科技公司

1/2 (12.7 mm) Conductive Plastic & Cermet Potentiometers

文件：97.21 Kbytes 页数：3 Pages

VISHAYVishay Siliconix

威世威世科技公司

6 x AA battery holder with 5.5mm/2.1mm plug

文件：149.89 Kbytes 页数：2 Pages

ADAFRUIT