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Characterized by high innovation trends based on an old fashioned technology, ST's power bipolar transistors have evolved from general purpose devices to Application Specific Products. The new enhanced collector diffused technology has been tailored for very high voltage horizontal deflection circuit used in high end TVCs and monitors. The low voltage product range has been enlarged with the latest base island technology to provide the best performance in low-medium power applications, targeting the computer consumer market segments in motherboards, hard-disk drivers, mobile chargers, emergency lighting, laptop back light illumination.
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PRODUCT DESCRIPTION:
Libratherm offers four channel back to back connected SCR firing cards model SCRF-4 for electrical Heating control using resistive or inductive loads. Normally, the solid state relays are built around triacs and which are available up to the current carrying capacity of maximum 50 to 100Amp @ 230VAC, due to limitations of high PIV as compared to SCRs. Hence, for controlling the higher ratings of load, power contactors are used and solid state switching is not easily accomplished. The card SCRF-4, featured here can be used to fire up to 500Amps SCRs. Hence, it is possible to built solid state relay of as high as 500Ampere @ 230VAC or 415 VAC. The input control signal coming from the temperature controller in the range of 3 to 32VDC can be fed to this card to generate the ZERO cross over Gate Cathode pulses G1K1+G2K2 to turn ON the SCR, and the same can be turned off when the input signal is 0VDC. ZERO cross over circuit prevents generation of harmonics while turning the SCR OFF to ON or vice versa.
Using the single card, maximum 4 independent pairs of back to back connected SCRs can be fired in single phase, two phase or three phase in star or delta configuration of loads. User has a choice to select suitable ratings of back to back SCR as per the current demand (with suitably rated heat sinks). Making the solid state relays using this card is more advantageous, since, rapid on/off switching of the order of 1 second is possible, and hence can be operated in PID control mode, when compared to the power contactors. The card SCRF-4 is available in DIN mounting card holder. |
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To aid this miniaturization campaign, a new generation of Chip Diodes from Bourns has emerged that offers the capability to provide a silicon diode with minimal packaging overhead. The small signal 0603, 1005 and 1206 Chip Diodes are lead free with Cu/Ni/Au plated terminations while the other packages (SMA, SMB, SMC, 1408, 1607, 2010, 2419, 8L NSOIC, 16L NSOIC, SOT23, SOT23-6, 16L WSOIC) use 100% Tin terminations. All Bourns diodes are compatible with lead free manufacturing processes, conforming to many industry and government regulations on lead free components.
Bourns¨ Chip Diodes conform to JEDEC standards, are easy to handle on standard pick and place equipment and their flat configuration minimizes rollaway.
Advantages
The Chip Diode product range provides distinct advantages over some of our competitors, such as:
Package Size: The Chip Diodes 0603, 1005, 1206, 1408, 2010 are
leadless, allowing designers to make real estate savings on PCB
layouts.
Environmental: All Bourns diodes are RoHS compliant
and units meet many worldwide industry and government regulations
on lead free components.
Manufacturing Friendly: Chip Diodes allow the use of industry standard pick & place equipment. The Chip Diode package makes it easy to handle and the flat configuration minimizes rollaway in production operations.
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A CURRENT LIMITING DIODE, CLD, also known as a "Current
Regulating Diode" or a "Constant Current Diode" performs quite
a unique function. Similar to a zener diode, which regulates voltage
at a particular current, the CLD limits or regulates current over a wide
voltage range.
The CLD is diffused using a "Field Effect" process
similar to the diffusion techniques used for manufacturing JFETs with
the electrical characteristics optimized for high output impedance and
current regulating capability.
Available in a wide range of voltage and current ratings, and offered in
a variety of leaded and surface mount package styles, the CLD provides
an alternative to conventional design techniques for controlling current,
especially when reliability and component density are prime considerations. |
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Higher performance levels in terms of recovery behavior, junction temperature, leakage current and switching losses, place ST's Rectifiers at the cutting edge of this sector.
Based on a large portfolio of Schottky Barrier (Signal and Power), including new avalanche rating, Bipolar Ultrafast Turbo 2 and Tandem diodes, Damper and Modulation devices, ST offers advanced and well-proven solutions for Power factor Corrector (PFC) lead, efficient Switch Mode Power Supply (SMPS) designs, Energy recovery for Plasma Display Panel (PDP), and more.
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Toshiba continues to offer the broadest line up of discrete products. Toshiba's Discrete solutions cover a breadth of products including Optoelectronics, Logic ICs, Small Signal, Microwave, Radio Frequency (RF) ICs, and Power devices.
Toshiba Power Semiconductors, RF, and Small Signal low frequency discrete devices consists of a wide array of Diodes, Linear ICs, Semi Custom ICs, Sensors, Thyristers, Triacs, and Transistors. Toshiba's Discrete products are designed for applications that require high reliability, power efficiency and a compact design. |
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| Power Transistor Arrays (Multi-chip, 4 Circuits) ;Small Signal Transistor Arrays (Multi-chip) ;Small Signal Transistor Arrays (Monolithic) ;J-FET+Bipolar Transistors |
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Toshiba offers an ultra linear GaAs FETs product family, designated the UL family, for C-Band frequency range with higher gain, lower intermodulation distortion and higher efficiency. The UL product family includes products from 4 watts (W) up to 25W and was developed for point-to-point microwave digital radio for terrestrial communications and block up converter or VSAT terminal for satellite communications.
Toshiba America Electronic Components, Inc. (TAEC) is the North American engineering, manufacturing, marketing, and sales arm for Toshiba Microwave Semiconductors. TAEC has established customer service, engineering support sales offices, and sales representatives throughout North America to provide the best possible service.
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ST's proprietary strip layout technique and its derivatives have revolutionized Power MOSFETs. The Power MOSFET range includes the very advanced MDmesh%u2122 plus PowerMESH%u2122 products for high and very high voltage Power MOSFET applications.
The low voltage STripFET%u2122 family is optimized for DC-DC conversion, automotive, motion control and power management applications.
Power MOSFET performance is further boosted through innovative packaging concepts. |
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| The XP1xxSeries are a group of power MOSFETs that achieve low on state resistance and ultra high speed switching. |
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Toshiba offers a variety of High Power, High Speed Switching power MOSFET.
MP4208: For Hammer Drive, Pulse Motor Drive and Inductive Load Switching Applications.
MP4209-10-11: For Printer Head Pin Driver and Pulse Motor Driver Solenoid Driver Applications.
MP4212: For H-Switch Driver Applications.
MP6404: For 3-Phase Motor Drive and Stepping Motor Drive Applications. |
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Toshiba Power Semiconductors, RF, and Small Signal low frequency discrete devices consists of a wide array of Diodes, Linear ICs, Semi Custom ICs, Sensors, Thyristers, Triacs, and Transistors. Toshiba's Discrete products are designed for applications that require high reliability, power efficiency and a compact design.
Toshiba offers a wide range of power MOSFET, power transistor modules with or without insulatead heat sink covers up to high power. |
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| Central has developed a new series of drop in replacement Quad Transistors as part of its on-going EOL-Life Support Program. |
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DC-6 GHz Broadband MOSFET Quad Array
Extend the reach of your base stations with Peregrine integrated receive mixers. High linearity and remarkable input IP3 performance will pick distant signals out of the haze. Integrated matching RF and LO networks and the tiny 6-lead DFN package eliminate the need for bulky mixer modules or external RF baluns. |
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| Offering a broad portfolio of RF Power products, Freescale Semiconductor serves numerous RF markets including wireless infrastructure, broadcast and industrial, scientific and medical markets. Freescale's leading RF Power product offerings meet the increasing demands of ISM, microwave and personal communication systems, including cellular infrastructure, broadband data, WiMAX, TV broadcast, UHF/VHF broadcast and land mobile. With a long history of experience and innovation, Freescale delivers the quality, reliability and consistency that our customers depend on. |
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Transistors, Diodes, Thyristors
