AEMC Instruments
Foxborough, MA 02035
Nov 02, 2009 Composed of flexible sensor and electronic module, MiniFlex(TM) MF 300-6-2-10 and MF 3000-10-2-1 have mV output proportional to current measured for direct readings on DMMs, data loggers, oscilloscopes, and power or harmonic meters. Units are insensitive to DC currents and only AC component of signal is measured. Available in 6 and 10 in. lengths, sensors are insulated for 1,000 V CAT III; 600 V CAT IV. Electronic module provides Off-Low Range-High Range selections with measurements from 0.5-3,000 A.

Allegro MicroSystems Inc.
Worcester, MA 01615
Oct 28, 2009 Offered in surface mount package, 120 kHz Model ACS710 consists of precision linear Hall sensor integrated circuit with copper conduction path located near surface of silicon die. Applied current flows through copper conduction path, and analog output voltage from Hall sensor IC linearly tracks magnetic field generated by applied current. For low power loss, internal resistance of copper path used for current sensing is typically 1 mW.

LEM U.S.A., Inc.
Milwaukee, WI 53224
Oct 20, 2009 Based on Perfect Loop Technology, 5 mm gauge split-core RT Series offers sensing aperture diameters of 55 or 125 mm and achieves absolute accuracy of better than 0.65% after calibration. Magnetic coupling technology allows optimal extension of magnetic flux at loop opening, which compensates for coil asymmetry. Electronic integrator circuit, typically within device to which sensor is connected, converts voltage signal into output signal that is proportional to primary current.

Agilent Technologies, Inc
Santa Clara, CA 95051
Sep 01, 2009 Operating at 25 MHz and 100 MHz, high-voltage models N2790A and N2791A allow earth-grounded oscilloscopes to be used for floating signal measurements of up to 1,400 V of differential voltage and 1,000 V of common-mode voltage. Probes offer user-selectable attenuation settings and come with various probe tip accessories for use with small and large components in tight places. Each probe can accurately measure up to 3.5 nsec of fast transient edges in switching power supplies.

American Aerospace Controls, Inc. (AAC)
Farmingdale, NY 11735
Aug 25, 2009 Available for differential and ground fault current monitoring, space flight Series S 767 and military grade Series 913 B provide isolated analog output directly proportional to input magnetically. Featuring ½ in. aperture, Series S 767 operates on 22-36 Vdc power with response time of 50 ms. Series 913 B, designed with ¾ in. aperture, operates from 24-32 Vdc power with response time of 1 ms. Both chassis-mount series feature 0 to +5 V output and accuracy of 1% FS.

American Aerospace Controls, Inc. (AAC)
Farmingdale, NY 11735
Jul 16, 2009 Designed to compare AC input to fixed or adjustable current threshold, Series 870 and ACS-3 provide isolated switch or relay output that is activated as required. Housed in metal case and operating from -20 to +71°C, Series 870 features SPDT relay output with 10 A contacts, frequency from 47-63 Hz, and ¾ in. dia aperture. Series ACS-3, operating from -50 to +65°C, is housed in plastic case with solid state switch output, frequency from 6-100 Hz, and response time of 200 msec.

Saelig Co., Inc.
Pittsford, NY 14534
Jun 12, 2009 Designed for current and voltage measurements in automotive hybrid or electrical powertrain systems, KLARI-MOD SC 1000V Series offer 16-bit resolution and 1,000 V safety isolation between measurement circuitry and data output. Modules can be adapted to meet changing measurement requirements via use of different shunts or voltage probes. Data output is available via CANbus or RS232 serial interface.

E-T-A Circuit Breakers
Mount Prospect, IL 60056 6060
Jun 10, 2009 Based on Hall Effect technology, TD and 9001 Current Detectors protect power semiconductors in power electronic circuits by signaling when current in circuit has exceeded nominal trip point. Digital output is factory programmed to go low when trip point is exceeded. Operating over temperature range of -40 to +125°C, units mount directly to PCB and provide isolation between sensed current and output. Both have negligible levels of power dissipation.

LEM Holding SA
Plan-les-Ouates CH-1228  Switzerland
May 28, 2009 Able to measure currents to 4,000 ARMS in conductors of up to 268 mm dia, ITL 4000-S allows isolated measurement of AC, DC, and pulsed currents up to three times nominal value for peak measurement at frequencies to 50 kHz (±1 dB). Closed-loop Fluxgate technology ensures measurement accuracy (±0.1% of IPN) over -40 to +70°C operating range. This accuracy also allows measurement of small DC currents in presence of large AC components.

Allegro MicroSystems Inc.
Worcester, MA 01615
Apr 24, 2009 Featuring 100 µW integrated current conductor, 50-200 A Model ACS758 provides AC or DC current sensing. Thermally enhanced device consists of linear Hall sensor circuit with copper conduction path. Applied current flowing through conduction path generates magnetic field, which is sensed by integrated Hall IC and converted into proportional voltage. Applications include motor control, load detection and management, inverter control, and over-current fault detection.

American Aerospace Controls, Inc. (AAC)
Farmingdale, NY 11735
Apr 01, 2009 With supply voltage of +22 to +32 Vdc, military-grade, bi-directional Series S651 provides output of 0 to ±5 V with accuracy of 1% full scale. Current ranges are 0 to ±100 A to 0 to ±200 A. Operating from -40 to +65°C, devices feature frequency range of DC-3.5 kHz and 100 µsec response time. Industrial grade, bi-directional Series S764 offers current ranges from 0 to ±20 A to 0 to ±100 A.

International Rectifier Corp.
El Segundo, CA 90245
Mar 27, 2009 Supplied in 12-pin, 3 x 4 mm DFN Pb-free package, IR3725 input power, voltage, and current monitor IC is intended for 12 V power supplies used in CPU, server, and storage applications. TruePower(TM) technology is utilized to output average power during specified interval over digital I²C interface. This information is used by system controller to optimize overall power consumption, delivering current accuracy of 1.0% and voltage accuracy of 1.5%.

LEM Holding SA
Plan-les-Ouates CH-1228  Switzerland
Feb 20, 2009 Designed for AC and DC isolated current measurement from 6-50 Arms nominal, CAS, CASR and CKSR family of PCB mounted current transducers feature 7-30 ppm/K of thermal offset drift, and have response time less than 0.3 microsec. Products utilize Closed Loop Fluxgate technology, and operate from single 5 V supply. Plastic case of unit has Comparative Tracking Index of 600. CKSR model has one more primary pin than 3 pins of CAS/CASR models which enables creepage and clearance distances of 8.2 mm.

Grupo Premo
Barcelona   Spain
Jan 05, 2009 Based on low consumption Fluxgate Technology, Series DCT-200A measures DC, AC currents, with precision levels of 99.9% of linearity and 5 ppm of linear error. It offers wide band-width of up to 100 kHz, up to 200 A, and measures 52 x 52 x 37 mm. Featuring immunity to all kind of interferences, unit suits energy measurement systems, medical equipment, high stability inverters, and high power supply applications.

ICM Controls
Cicero, NY 13039
Dec 02, 2008 Featuring backlit digital display, Model ICM492 protects single-phase equipment against low and high voltage conditions and rapid short-cycling. Device continuously checks incoming line voltage for faults and displays RMS voltage. Response time on fault condition can be fine-tuned to minimize nuisance trips. Additional features include adjustable anti-short cycle time delay, control mode, universal line voltage input, and heavy-duty SPDT relay output.

CR Magnetics
St. Louis, MO 63122
Nov 05, 2008 Designed to sense phase angle difference between ac current and voltage signals, CR6300 Series includes 3 models with 0-5 Vdc, 0-10 Vdc, or 4-20 mAdc output. Units are powered by single 24 Vdc power supply, and have window openings to accommodate current carrying wires up to .26 in. diameters. They offer up to 500 V input voltage and up to 25 A of current. Housed in 3.26 x 1.42 x 2.99 in. package, transducers can be mounted on 35 mm DIN rails or surface panels.

Summit Microelectronics, Inc.
Campbell, CA 95008
Aug 27, 2008 Providing real-time output voltage and input current monitoring for power control, SMM151/2/3 features I²C interface, non-volatile memory, 256 bytes general-purpose EEPROM memory, and 2 general-purpose voltage comparators. Devices allow input current and differential output voltage monitoring via integrated 10-bit A/D conversion. While SMM151/2 provide output voltage margining with 0.3 V to VDD (up to 5 V) range, SMM152/3 also integrate 4 GPIO.

ABB Ltd.
Zurich CH-8050  Switzerland
Aug 22, 2008 Suited for high voltage network applications, Magneto optical current transducer (MOCT-P) optical instrument transformer has free-standing sensor column that communicates with rack mounted electronic module, located in control house, by means of 200/230 multimode optical fibers. It features multiple analog 200 mV low voltage outputs, SF6 free design, and accurate reproduction of fault events. Unit can be used in transmission line, bus, transformer, breaker, or distribution schemes.

Phidgets, Inc.
Calgary, AB T2M3R7  Canada
Aug 21, 2008 Designed to connect into analog input on 1018 PhidgetInterfaceKit 8/8/8 or on PhidgetTextLCD, Model 1122 AC/DC Current Sensor measures AC current up to 30 A and DC current from -30 to +30 A. Features include current conductor resistance of 1.5 mW, output impedance of 1 kW, and active current consumption of 10 mA. Maximum measureable AC frequency is 10 kHz.

Catalyst Semiconductor
Sunnyvale, CA 94089
Jul 14, 2008 Integrating 5 channels into one 8-lead MSOP, CAT885 gives designers high reset threshold accuracy (±2%) and minimal power consumption for monitoring power supply (Vcc) status of MPU, MCU, ASIC, or other system processor. It features open-drain output, active-low function with manual reset to perform system reset, and monitoring functions for range of electronic products. Two voltage detectors are factory-set, and remaining 3 voltage monitors are adjustable.