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Transistor Arrays
Renesas' portfolio of transister arrays include NPN, PNP, NPN-PNP combination transistor arrays based on our complementary UHF-1 SOI process. This portfolio also includes ultra high frequency transistor arrays for VHF/UHF amplifiers, VHF/UHF mixers, IF converters, synchronous detectors. Dual long-tailed pair transistor arrays and Gilbert Cell UHF transistor arrays are also available for wireless communication systems, radio and satellite communications and high performance instrumentation.
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DC Input Single
DC input/single transistor output photocouplers (optocouplers) are optically coupled isolators containing a GaAs infrared light emitting diode and an NPN silicon phototransistor. This type is suitable for applications such as I/O interfaces and signal transmission circuits.
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Low Input Current
Low input current and transistor output photocouplers (optocouplers) are optically coupled isolators containing a GaAs infrared light emitting diode and an NPN silicon phototransistor. This type features a fast response while operating on a low input current.
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DC Input Darlington
DC input/Darlington transistor output photocouplers (optocouplers) are optically coupled isolators containing a GaAs infrared light emitting diode and an NPN silicon Darlington connected phototransistor. This type can operate on a low-current DC input because of its Darlington configuration.
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High Collector To Emitter Voltage
High collector-to-emitter voltage photocouplers (optocouplers) are optically coupled isolators containing a GaAs infrared light emitting diode and an NPN silicon Darlington connected phototransistor. The isolation voltage during input and output and the voltage between the collector and the emitter of the transistor are both high.
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AC Input Single
AC input/single transistor output photocouplers (optocouplers) are optically coupled isolators containing GaAs infrared light emitting diodes and an NPN silicon phototransistor. This type consists of two infrared light emitting diodes connected in inverse-parallel, and operates directly on AC input current.
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Atlas DCA Semiconductor Analyser
DCA55
Intelligent and flexible semiconductor analyser. Connect any way round! The DCA55 then displays the following on its backlit alphanumeric display:- Component type (such as NPN transistor, P-Ch MOSFET, LED, diode etc)- Pinout information (such as Base, Emitter, Collector etc)- Parameter measurement (hFE, Vbe, Vf, leakage current etc)
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Inductive Sensors
In general, inductive proximity switches consist of four basic elements: a coil, an oscillator, a threshold switch and an output stage with short-circuit protection.The oscillator generates a high frequency, electromagnetic alternating field which is emitted from the active face of the coil.Eddy currents are induced in a metal object that enters this field. These eddy currents draw energy from both the electromagnetic field and from the oscillator which is consequently attenuated.The more energy taken the closer the metal object moves towards the active face. The threshold switch switches on the output stage at a defined attenuation value.In proximity switches with a DC voltage supply, this switch is designed as an NPN transistor which switches the connected load to the negative pole or as a PNP transistor which switches the load to the positive pole. The output stage is a thyristor or a triac in AC voltage switches.
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Trip Amplifiers
Datexel manufacture a large range of Trip Amplifiers and Process Limit Alarms that accept universal inputs and provide either relays or NPN or PNP transistor outputs. The DAT5028 is also an isolated signal converter and has a local display with up to 4 relays and is DIP switch programmable. The inputs can be Thermocouples, RTD, mV, mA, Resistance, Potentiometers or Voltage. They can be supplied fully configured set up by PC or DIP switches. The DAT5024 is a trip Amplifier / Temperature limit alarm for RTD's, Thermocouples, Voltage, Resistance and Current with the option of 1 or 2 relay outputs hysteresis and delay timers. The DAT5024 E range is an economical choice with DIP Switch programmable for voltage or current input. Either 1 relay or 2 relays (SPDT) are available with delay timers.
