|
|
Renesas offers a wealth of triac and thyristor devices including products for low-rush current, high-voltage and high-capacity. Key applications are household appliances, LBP, PPC and FAX machines, strobes and igniters. Renesas's triacs are the world’s first commercially available triacs with Junction Temperature rating at 150-degree C.
To see full lineup of Renesas Thyristors and Triacs, visit the URL below.
http://eu.renesas.com/fmwk.jsp?cnt=thyristors_triacs_root.jsp&fp=/products/discrete/thyristors_and_triacs/
|
|
|
|
|
|
The Multipulse™ SIDAC is a voltage switch used in Metal-Halide lamp ignition circuits as well as High Pressure Sodium lamp ignition circuits for outdoor street and area lighting. This robust solid state switch is designed to handle lamp igniter applications requiring operation at ambient temperatures up to 90°C where igniter circuit components can raise SIDAC junction temperature up to 125°C, especially when the lamp element is removed or ruptured. Its excellent commutation time (tCOMM) makes this robust product best suited for producing multiple pulses in each half cycle of 50/60 Hz line voltage. The Multipulse™ SIDAC is offered in DO-15 axial leaded package.
Kxxx1G SIDAC has a repetitive off-state blocking voltage (VDRM) of 180V to 200V minimum depending actual device type. Blocking capability is ensured by glass passivated junctions for best reliability. Package is epoxy encapsulation with Tin-plated copper alloy leads.
Features:
AC circuit oriented
Triggering Voltage of 200 to 280V
RoHS Compliant
Read More
|
|
Central manufactures Thyristors in a wide range of leaded and SMD packages. New devices are continuously in development, so be sure to view the On The Drawing Board section listed below.
Coupled with proven reliability and nothing less than total customer satisfaction, Central's Thyristors will provide answers to some of industries most demanding requirements.
|
|
|
The wide portfolio consists of standard thyristors and diodes with epoxy disc case, high power thyristors and diodes with ceramic disc case. Bipolar Power Semiconductors are applied in the most varied fields of application in a power range of just a few kilowatts up to several gig watts. The light triggerable thyristors (LTT´s) are very compact in size and especially fast in reaction. Hence without high power thyristors high voltage DC couplers would not be reality today, when two grids can not be coupled by AC links.
|
|
|
|
|
|
PRODUCT DESCRIPTION:
Libratherm offers four channel 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. Normally, 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 ZERO cross over Gate to 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 back to back SCRs can be fired. 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. SCRF-3 is a single card with built in supply – so that potential free contact can also be used to fire 3 independent back to back SCR for single phase or three phase load.
|
|
| ... products without technical information |
| |
|
|
|
|
|
Obsolete 2001-09-17 Surgector® Thyristors for Teleco Protection This Product is Obsolete. For new Designs use the SIDACtor PxxxxS_ Series devices. Designed to suppress lightning and other transients, Surgector suppressors are primarily intended for operation on the telephone line "tip and ring" environment in order to protect telecommunications CPE and COE products in conjunction with the Littelfuse 461 series Telecom Nano2� fuse. These devices provide secondary protection for telecommunication equipment such as telephone, MODEM, line card and other devices subject to damage from transient over voltage events. Surgectors can be an integral part of a Telephone Line Protector Unit, meeting AC Power Cross criteria when used in association with properly selected resistor/PTC/fuse combinations such as the Littelfuse 461 series fuse. Littelfuse Surface Mount Surgectors are manufactured using silicon thyristor technology, offering bi-directional voltage clamping for transients of either polarity from a single chip. The Surgector devices described in this data sheet are manufactured with the DO-214AA low profile case style and are second source equivalent parts to industry “SIDAC” types. Surface Mount Surgector Suppressors are supplied in embossed carrier tape on 330mm (13in) reels.
|
|
Thyristor switching modules of the KATKA line have been designed especially for switching power factor correction capacitors in rapid reactive power compensation (up to 20 control interventions in one second) in conjunction with fast power factor controllers of the NOVAR line. They can be also used in other applications where contact-less load switching is required.
Characteristics
- switching device with long life
- high number of connections and disconnections
- up to 29 kVar (KATKA 20) with passive cooling
- up to 87 kVar (KATKA 80) with active cooling
- reduced current and voltage interference with the power systemm (connection and disconnection at near-zero power)
- fast connection and disconnection.
|
|
It is designed to
- handle high peak pulse current, rms current and surge voltage
- ( Gate turn-off Thyristor ) GTO Snubbering protection
- Motor Control and Static Drive application
- With build-in M6 / M8 thread stub for easy connection
Catalogue can be download in our website. http://www.filmcapacitor-st.com
We even support small quantity order.
Prompt Delivery, worldwide !
For further details and quotation please contact us : info@filmcapacitor-st.com
|
|
This series of capacitor is for SCR Thyristor Snubbering.
- Voltage range : 500Vac ~ 1350Vac / 900V ~ 2300Vdc
- Capacitance : 0.1uF ~ 50uF
- Plastic Case with Epoxy Resin - dry construction
- Electrical Connection : M4, M6, M8 Bolt or Tab Terminals
- with M8 Bolt threads at capacitor bottom for capactior installation
Catalogue can be download in our website. http://www.filmcapacitor-st.com
We even support small quantity order.
Prompt Delivery, worldwide !
For details, please contact info@filmcapacitor-st.com
|
|
... see all the products in the category
Capacitors
|
To control the speed of the DC motor gradually, smooth DC voltage across the armature of the motor needs to be regulated along with the fixed DC voltage across the Field winding in the case of the 4 wire DC motors. The DC drive featured here, generates the variable DC voltage using phase angle control technique incorporating Diode / SCR rectifier. The DC voltage across the armature winding can be smoothly varied using the potentiometer or using the external control signal of 4-20mA or (0-5)VDC. Models are available for 1/8HP to 5HP DC motors operating on 100VDC to 400VDC.
APPLICATIONS
Suitable for small machines in Plastic, Packaging and Pharmaceutical industries where smooth and steady control over DC motor is required
|
|
|
... see all the products in the category
DC drives
|
JU Series Single-Phase Thyristor Regulators
The JU series small and lightweight thyristor regulators for single-phase loads are characterized with high panel installation density.
Two control systems, a phase-angle firing system and a zero-cross firing system, are built in and can be changed by remote contacts signal.
|
|
To control the temperature of electrical heating system using contactors and solid state relays is a simplest method of controlling. However, for heater load requiring gradual and smooth power regulation or for control using the step up or step down transformers, the thyristor power packs featured here are widely used. Incorporating the thyristors for heater power control, ensures steady control and enhances the life of the heaters. Single phase and three phase models are available for single phase load and three phase load in star or delta configurations. Special features allows facility to limit the voltage, current to the desired level and soft rise / fall of the voltage across the load at the desired rate. To suit OEM requirement, only SCR / Triac triggering cards can also be offered along with the wiring details to enable them to make their own thyristor power pack.
APPLICATIONS
For power control of electrically heated furnace, oven, chamber etc...
|
|
|
The MEW range of controllers are designed for regulating a three phase supply, using the phase-angle control principle. There are a number of versions available and choice depends upon the preferred method of control. The simplest units are used in conjunction with potentiometers or analog signals that provide the set point to give voltage, current or power regulation. Microprocessor control provides more functions for customising, through a digital front panel and also the ability to operate from standard field bus systems such as Interbus or Profibus.
|
|
- Contact free and safe
- High degree of efficiency
- No wear
- Built-in semiconductor fuse
- Integrated soft start for transformer use
- Load circuit and self monitoring integrated
- Single phase, Three-phase twin leg configuration
- System iInterface via busmodule
Applications
Switching of ohmic as transformer load for
- Industry- diffusion- drying furnaces
- Extrusion and plastic presses
- Pipe-heating and pre-heating systems
- Glass manufacture and processing ( melting, feeder, refining)
- Paint- and laquer drying
- IR drying (printing machines)
- Shrink tunnel (packaging industry)
Main attributes
Full oscillation cycle and phase angle mode
QTM0=rapid half cycle for IR load
switching of ohmic load for AC ranges
230 V, 400 V, 500V
Load current 8 up to 280 A
Control input 0(4)...20 mA, 0...5/10 V
Fault signalling
|
|
| ... products without technical information |
| |
|
|
