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Electronic Components & Devices -> Electronic Amplifiers -> Limiting Amplifiers

Limiting Amplifiers

(Showing headlines 1 - 20)   more ....
High-Power SPDT Switch-Limiter has recovery time of <100 nsec.

High-Power SPDT Switch-Limiter has recovery time of <100 nsec.

M/A-COM Technology Solutions, Inc.    Lowell, MA 01851
Aug 27, 2013 Operating over 2.7–3.5 GHz bandwidth, MASL-011023 handles 125 W of CW power at 85°C and delivers flat leakage of 10 dBm in Rx mode (7 dBm in Tx mode). JEDEC standard footprint, SMT, 7 x 7 mm, QFN package enables repeatable, high-volume manufacturing, and fully integrated RF and DC bias network provides complete switch-limiter solution. Suited for S-Band applications, SPDT/SP2T switch-limiter is designed to minimize insertion loss and handle +51 dBm CW power through transmit path.

Inrush Current Limiting Thermistor reduces circuit failures.

API Technologies Corp.    South Plainfield, NJ 07080
Mar 19, 2013 Designed to limit inrush current that occurs when power is applied to system, Surge-Gard™ NTC thermistors feature steady state current ratings from 1–36 A and resistance from 0.5–220 Ω. Metal oxide ceramic materials used in their manufacture maximize thermistors' inrush current surge suppression capabilities. Suitable areas of use include switching power supplies where low impedance of charging capacitor exposes diode bridge rectifier to excessively high current surge at turn-on.

Inrush Current Limiter protects avionics and military systems.

VPT, Inc.    Blacksburg, VA 24063
Sep 29, 2011 With power capacity of 200 W and 99% efficiency, Model DVCL controls potentially damaging inrush current drawn by DC-DC converters, EMI filters, and discrete capacitors during startup. Unit features input voltage range of 11-50 V per MIL-STD-704 and withstands transient voltage of 80 V for 1 second. Housed in hermetic package, limiter provides full performance over military temperature range of -55 to +125°C.

Current Limiters tolerate AC mains power contact without damage.

Current Limiters tolerate AC mains power contact without damage.

Bourns, Inc.    Riverside, CA 92507 2129
Feb 04, 2011 Designed for high-speed protection of communications ports, TBU® (Transient Blocking Unit) DT-Series is comprised of 8 models and offers continuous AC voltage ratings up to 425 Vrms and nominal trigger currents from 150-750 mA. Devices protect circuits against faults caused by shorts, AC power cross, induction, and lightning surges. Protectors do not alter signal performance of high-speed communication ports and are suited for Ethernet ports in outdoor applications.

Logarithmic/Limiting Amplifier features 75 dB dynamic range.

Plessey Semiconductors Ltd.    Devon PL6 7BQ  United Kingdom
Feb 03, 2011 Model PS13201 Logarithmic/Limiting Amplifier operates in 100-500 MHz frequency range, with 75 dB dynamic range, and also features balanced RF output. Product includes on-chip video amplifier with provision for external adjustment of log slope and offset. Operating over military temperature range of -55 to +125°C, unit is suitable for use in wideband logarithmic receivers and both channelized and mono-pulse radar applications.

Circuit Protection Devices support range of trigger currents.

Circuit Protection Devices support range of trigger currents.

Bourns, Inc.    Riverside, CA 92507 2129
Sep 09, 2010 Bourns® Transient Blocking Unit (TBU(TM))-CA Series stops damaging currents from reaching protected circuits in less than 1 µsec. Suited for industrial and telecommunications applications, bidirectional and resettable electronic current limiters (ECLs) protect against faults caused by short circuits, AC power cross, induction, and lightning surges within rated limits. There are 5 impulse blocking voltages from 250-850 V, min trip currents of 50-500 mA, and resistance values as low as 3 ohms.

Transmit/Receive Chipset combines low jitter, low power draw.

Transmit/Receive Chipset combines low jitter, low power draw.

Maxim Integrated Products    Sunnyvale, CA 94086
Jun 10, 2010 With combined power consumption of 355 mW, 1.0625-11.3 Gbps chipset consists of 4 x 4 mm MAX3946 laser driver with impedance-mismatch tolerance and 3 x 3 mm MAX3945 dual-path limiting amplifier. This 10GBASE-SR/LR SFP+ transmit/receive chipset enables less than 1 W SFP+ optical modules, and both ICs include 3-wire digital control interface with integrated control DACs. Optimized for Ethernet and Fiber Channel transmission systems, chipset is specified over -40 to +95°C range.

Driver/Limiting Amplifier features built-in de-emphasis.

Intersil Corporation    Milpitas, CA 95035
Jan 19, 2010 Operating on single 1.2 V power supply, Model ISL35111 features built-in de-emphasis to compensate for frequency dependent attenuation of PCB traces. Unit enables channel throughputs of 10-11.1 Gbps while supporting lower data rates including 8.5, 6.25, 5, 4.25, 3.125, and 2.5 Gbps. When used in conjunction with ISL36111 receive-side equalizer, Model ISL35111 supports 10 G serial data transmission over more than 15 m of twin-axial copper cables.

 VCSEL Driver and Limiting Amplifier are provided on single chip.

VCSEL Driver and Limiting Amplifier are provided on single chip.

Maxim Integrated Products    Sunnyvale, CA 94086
Dec 01, 2009 Targeted at SFP+ Ethernet and Fibre Channel applications, MAX3799 delivers up to 14 Gbps performance while consuming 320 mW. Device offers programmable receive functions such as data rate; LOS threshold, squelch, and polarity; CML output level; and signal-path polarity. Programmable transmit functions include modulation current, bias current, polarity, deemphasis, eye-crossing adjustment, and eye safety control. Housed in 5 x 5 mm, 32-pin TQFN package, chip operates from -40 to +85°C.

Current-Limit Switches protect devices from faulty loads.

Current-Limit Switches protect devices from faulty loads.

Maxim Integrated Products    Sunnyvale, CA 94086
Dec 01, 2009 Offering ±10% accurate current limit that can be programmed from 250-1,500 mA with external resistor, MAX14523A/MAX14523B/MAX14523C protect host devices against damage caused by faulty load conditions, and provide reverse-current blocking to prevent current from being dumped back into source. Low shutdown current of 0.5 µA makes devices suited for cell phones, MP3 players, and other battery-powered applications. Housed in 3 x 3 mm TDFN package, units operate from -40 to +125°C.

Zener Diode Barriers include features for hazardous areas.

Zener Diode Barriers include features for hazardous areas.

Turck USA    Minneapolis, MN 55441
Nov 17, 2009 Offering both relay and solid-state switch models, MZB Series limits excess energy before it reaches hazardous area. Units feature removable terminals, bussed power feed, and channels as small as 6.3 mm wide. Each channel is fitted with 2 stages of pulse-tested Zener diodes and infallible terminating resistor. If electrical fault occurs in non-hazardous area of barrier, Zener diodes limit voltage available to hazardous area circuits, while series resistance limits current.

Non-Incendive Barrier Modules prevent explosions.

Non-Incendive Barrier Modules prevent explosions.

Phoenix Contact    Harrisburg, PA 17111 0100
Jun 11, 2009 While PI/NI-2D/24 protects 24 V digital signals in case of short circuit or over-voltage condition, PI/NI-2I/I limits max short circuit current to 24 mA in 4-20 mA loops and can be installed with 2-wire 4-20 mA transmitters. Both use current and voltage limiting circuitry to minimize risk of ignition in hazardous Class I, Division 2 or Zone 2 environments. Analog and digital signal modules have 2 channels and can use INTERFACE T-Bus connection system.

Track Current Limiter is available in 4 models.

Track Current Limiter is available in 4 models.

WAC Lighting    Port Washington, NY 11050
Sep 11, 2008 Compliant with California Title 24 and ASHRAE 90.1 requirements, Track Current Limiter ensures that track installations meet wattage limitations according to size and usage of space. It can be mounted as standard canopy, used in place of I connector, or as live-end. Unit's circuit breaker will trip and shut down power to track when track is overloaded, and device may be reset when overall total of fixture wattages are reduced below circuit breaker rating.

SiGe Chipset delivers 4 x 10 Gbps for optical interconnects.

GigOptix Inc.    Palo Alto, CA 94303
Jul 22, 2008 Comprised of 4 x 10.3 Gbps Transimpedance Limiting Amplifier (HXR4104) and 4 x 10.3 Gbps Vertical Cavity Surface Emitting Laser driver (HXT4104), HXR/T4104 chipset is fully programmable via 2-wire interface. This enables control of signal peaking, modulation, and average currents while also providing access to temperature and output power monitoring on channel-by-channel basis. Parallel VCSEL driver is compatible with QSFP Multi-Source Agreement (MSA).

Overcurrent Protection Device measures only .063 x .032 in.

Littelfuse, Inc.    Des Plaines, IL 60016
Jun 12, 2008 Available in 4 hold current/maximum voltage ranges, including 0.10 A/15 Vdc, 0.20 A/9 Vdc, 0.25 A/9 Vdc, and 0.35 A/6 Vdc, Series 0603L Polyfuse® PPTC (polymer positive temperature coefficient thermistor) resettable over-current protection device has maximum fault current rating of 40 A, and meets TUV and UL safety standard certification. It is suited for wide range of consumer electronic devices such as mobile phones and computers, Flash drives, and USB thumb drives.

UL-Listed Cable Limiters help maintain system operation.

UL-Listed Cable Limiters help maintain system operation.

Mersen    Newburyport, MA 01950
Mar 27, 2008 CP 600 Cable Limiters isolate damaged conductors that have experienced faults due to short circuit incidents that may have occurred from splicing or insulation breakdowns and then safeguard remaining cables to keep systems operational. Available for cable sizes from 2 AWG to 1,000 kcmil, these 600 Vac products are offered in 7 terminal variations and interrupt faults up to 200 kA to protect low-voltage distribution networks and service entrance cables.

Current Limiter tracks maximum wattage allowances.

Prescolite    Spartanburg, SC 29303
Feb 05, 2008 Available in maximum wattages of 120, 300, 600, and 900 W, ArchiTrak Current Limited Device (AKTCLC) acts as circuit breaker and trips power off should track be lamped beyond maximum lighting load. Tamper-resistant screws prevent altering or damaging of original lighting design. Canopy consists of steel backplate, designed to fit standard 4 in. square or octagonal j-box, and injection-molded plastic canopy to accommodate 1 or 2 current limiting devices.

Segment Protectors limit current in fieldbus networks.

Pepperl + Fuchs, Inc.    Twinsburg, OH 44087 2245
Jan 15, 2008 Featuring trunk in/trunk out wiring T-connector, R2 FieldConnex® Segment Protectors can be disconnected while leaving trunk communications uninterrupted, and inherently prevent over-termination that can cause start-up and commission problems. Units provide IP20 protection with DIN rail mounting in 4, 6, 8, 10, and 12 spur configurations. They include removable terminals with retaining screws as well as LEDs for power, communications, and short circuit status indication.

Limiting Amplifier features programmable decision threshold.

Micrel Semiconductor, Inc.    San Jose, CA 95131
Jun 01, 2006 Providing solution for WDM systems, SY88353BL Limiting Amplifier is suited for Gigabit Ethernet, 1X and 2X Fibre Channel, and OC-3/STM-1 to OC-48/STM-16 applications. It incorporates pin at which variable dc signal can be applied to adjust output signal crossing from 20-80%. Operating from 3.3 V supply over -40 to +85°C temperature range, input signals with data rates from 155 Mbps to 3.2 Gbps, and as small as 10 mV pp, can be amplified to drive devices with CML or PECL inputs.

Cable Limiters protect against short-circuit currents.

Cable Limiters protect against short-circuit currents.

Cooper Bussmann    Ellisville, MO 63021
Dec 07, 2005 Suited for copper and aluminum cables, Cable Limiters protect against short-circuit currents in residential and light commercial applications up to 250 Vac, as well as commercial and industrial applications up to 600 Vac. In single or multi-cable/phase applications, units provide current limiting short-circuit protection that minimizes potential hazards. In multi-cable/phase service entrance or grid network applications, limiters isolate faulted cables.

(Showing headlines 1 - 20)   more ....

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