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The serial port of the one-chip computer is TTL level, in the actual application, need to change TTL level into RS232 level. Many RS232 interface chip, of course, the most famous max232 max; chip with a lot of compatible with this chip, such as LINEAR LT1081, LT1181, HARRIS ICL232, etc., are very famous and commonly used chips, LINEAR string Row interface conversion chip in the early circuit design can often see, but recently it seems rare. ICL232 cheaper than the MAX232.

Zener diode in the circuit work, it will produce an irregular periodic noise, this irregular noise is called Zener noise.

Harwin announces the introduction of a new female contact connector for the Datamate connector that significantly increases the power transmitted. T-Contact contact connectors feature a unique, patented 6-finger design that is machined from beryllium copper to increase the current capacity of a compact 2mm pitch interconnect system with up to 8.5A per contact. As a result, T-Contact, a new product, further improves the size, weight and power (SWaP) parameters of Harwin's popular Datamate connector and meets the ever-increasing power needs of engineers in today's space-constrained designs.

Diodes Corporation introduces the AP7381, a positive regulator that operates over a wide input voltage range (3.3V to 40V), delivering ultra-low quiescent current and high accuracy for a wide range of applications including USB, portable devices, power meters, Home automation and more.

TDK Group has introduced three new series of EPCOS aluminum electrolytic capacitors. The B43743 * / B43763 * series screw capacitors offer up to 40% higher ripple current performance over older models of the same size. The new series of capacitors operate from 350V DC to 450 V DC, with capacities ranging from 1,500 μF to 18,000 μF, a maximum allowable operating temperature of 105 ° C, and a service life of 6,000 at maximum operating temperature and rated current hour. Capacitor aluminum housing straight

TDK Group recently introduced the new EPCOS TSM-LC-NC690 thyristor rectifier module. The new module's operating voltage range is further expanded for power factor correction (PFC) applications up to 690 V AC. The module performs 2-phase switching of the capacitor, eliminating the need for a neutral conductor. In addition, the new module is designed for applications with reactive powers from 40 kvar up to 75 kvar depending on the operating voltage and can switch currents up to 60 Amps.

TDK Group recently introduced EPCOS MKP (Metalized Polypropylene Film) X2 EMI Suppression Capacitor with higher withstand voltage. Compared to conventional 305Vac X2 capacitors, the new series has a voltage limit of 350Vac, making it ideal for EMI suppression of input filters and output filtering in photovoltaic inverters, especially in the North American market. The new series of capacitors have capacitance values ​​in the range of 0.47μF to 10μF, as provided by the E12 series. Another feature of the new series of capacitors is that even in harsh environmental conditions, the capacitance value can be stable. This characteristic is validated by the damp heat test at a temperature of 85 ° C, a relative humidity of 85%, a voltage of 330V AC and a time of 1000 hours. After testing, the capacitance of the capacitor changes less than 7.5%. The maximum operating temperature of the capacitor is 110 ° C.

Littelfuse, Inc., a global leader in circuit protection, today introduced the 16 series Automotive Standard Diode Arrays (SPA® diodes) for automotive applications that meet the requirements of the Production Part Approval Process (PPAP). This family of products provides automotive manufacturers and high-end industrial manufacturers with a well known and prestigious single-source flow from wafer fabrication to device testing of their products. These AEC-Q101 compliant devices provide durable and effective protection for existing and new interfaces in automotive ecosystems for data, charging, control and drivetrain, and communications ports including antennas, Prevent it from being damaged by Electrostatic Discharge (ESD), Electrical Fast Transient (EFT), and other overvoltage transients.

Allegro MicroSystems, LLC, announces the addition of the ACS732 and ACS733 next generation products to its existing portfolio of high bandwidth current sensors that provide compact, fast and accurate measurement of high frequency currents in DC / DC converters and other switching power supply applications Solutions that Allegro first offered with 1MHz bandwidth and 3600VRMS rated isolation products. The ACS732 and ACS733 are hall-effect-based current sensors with integrated user-configurable over-current fault detection. These features make it ideal for replacing high frequency transformers and current transformers in high voltage applications.

ADLINK Introduces IMB-M43H, a New ATX Industrial Motherboard with Excellent Compute Performance, Supports Generation 6 and 7th Generation Intel® Core ™ i7 / i5 / i3 Processors (Note) Compatible with Windows 7 operating system when using Gen 6 processors. In addition, support for multiple expansion slots and compatibility with various I / O allows the IMB-M43H to be integrated with machine vision and motion control, plus rugged I / O for immunity and radiosity certification to aid system operation The stability of the upgrade, is to create high-level automation system cost-effective choice.