Choose from ASM 50/60Hz Current Transformers and AS High Frequency Current Sensors Transformers.

ASM 50/60Hz Current Transormers

ASM Series current sensors operate as the sealed secondary of a current transformer while the conductor carrying the current to be measured functions as a one turn primary. Measurement accuracy can be improved by increasing the number of primary turns. Applications include detection of branch circuit overload and load drop or shutdown.

Features

• Fully encapsulated for optimal PC board mtg.
• Mains frequency of 50/60 Hz
• Primary current ratings from 1 to 100 Amps
• Primary to secondary isolated to 2500 VAC
• Operating temperature range: -40° C to +120°C
• Competitive pricing due to high volume production
• Manufactured in an ISO-9001:2000, TS-16949:2002 and ISO-14001:2004 certified Talema facility
• Fully RoHS compliant

AS High Frequency Current Sensors

AS Series Current Sensors are designed as a low cost method of controlling, monitoring or measuring AC currents. The sensors serve as feedback elements between the output and pulse control circuitry providing accurate regulation of switch mode power supplies.

Features

• Fully encapsulated for optimal PC board mounting
• Frequency range from 20kHz to 200kHz
• Primary current rating to 30 Amps
• Primary to secondary isolated to 2500 VAC
• Meets VDE norms
• Optimum performance over designated current and frequency range
• Competitive pricing due to high volume production
• Manufactured in an ISO-9001:2000, TS-16949:2002 and ISO-14001:2004 certified facility
• Fully RoHS compliant

Applications

• Isolated current feed-back signal in Switch Mode Power Supplies
• Motor current load/overload
• Lighting
• Switch Controls Ultra-sound current
• High resolution sonar current
• Isolated bi-directional current sensor with full wave bridge rectifier
  

From Digi-Key, the Allegro® ACS714 provides economical and precise solutions for AC or DC current sensing in automotive systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection. The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer. A precise, proportional voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy after packaging.

Features & Benefits:

• Low-noise analog signal path
• Device bandwidth is set via the FILTER pin
• 5 µs output rise time in response to step input current
• 80 kHz bandwidth
• Total output error 1.5% typical, at T_A = 25°C
• Small footprint, low-profile SOIC8 package
• 1.2 mΩ internal conductor resistance
• 2.1 kV_RMS minimum isolation voltage from pins 1-4 to pins 5-8
• 5.0 V, single supply operation
• 66 to 185 mV/A output sensitivity
• Output voltage proportional to AC or DC currents
• Factory-trimmed for accuracy
• Extremely stable output offset voltage
• Nearly zero magnetic hysteresis
• Ratiometric output from supply voltage
• Operating temperature range, –40°C to 150°C

Features

• High reliability AC current measurement device
• Quick response speed, very low phase lag
• High isolation voltage between the measuring circuit and the current-carrying conductor (AC4KV)
• All materials used are RoHS compliant
• Flame-Retardant plastic case and silicone encapsulant, using UL 94V0 classified materials, protect against environmental contaminants and vibration over a wide temperature and humidity range

Applications

• ADC inputs
• Power meters
• Over current detection
• Ground Fault detection
• Isolated AC current monitoring
• General 50/60Hz current sensing

Topstek, ISO9001 certified, current transducer manufacturer, design and make current transducers, current sensors and AC current transformers. All Topstek CT are CE certified, RoHs compliant and SGS test verified.

Features

• High reliability AC current measurement device
• Quick response speed, very low phase lag
• High isolation voltage between the measuring circuit and the current-carrying conductor (AC4KV)
• All materials used are RoHS compliant
• Flame-Retardant plastic case and silicone encapsulant, using UL 94V0 classified materials, protect against environmental contaminants and vibration over a wide temperature and humidity range

Applications

• ADC inputs
• Power meters
• Over current detection
• Ground Fault detection
• Isolated AC current monitoring
• AC current sensing for switching power supply

Topstek, ISO9001 certified, current transducer manufacturer, design and make current transducers, current sensors and AC current transformers. All Topstek CT are CE certified, RoHs compliant and SGS test verified.

Features
♦ High reliability AC current measurement device
♦ External magnetic field anti-tamper shield
♦ Quick response speed, very low phase lag
♦ High isolation voltage between the measuring circuit and the
current-carrying conductor (AC3KV)
♦ All materials used are RoHS compliant
♦ Flame-Retardant plastic case and silicone encapsulant, using UL 94V0
classified materials.

Applications
♦ ADC inputs
♦ Power meters
♦ Over current detection
♦ Ground Fault detection
♦ Isolated AC current monitoring
♦ General 50/60Hz current sensing

Features :
♦ True RMS 4-20mA Output current measurement device
♦ Accurate AC current monitoring/measuring device
♦ Fast clamp-on application on existing switchboard wire
♦ Excellent linearity of the output over a wide input range
♦ Ferrite core ensuring fast response time and low phase lag
♦ Excellent frequency response (50~150 kHz) for accurate RMS measurement without DC component
♦ Wide measurement range(10mA~150Amp AC)
♦ Good linearity for low current(10mA~1A)detection
♦ High voltage isolation between measuring circuit and current-carrying conductor(1000V 60Hz AC)

Specification :
♦ Rated Input Current Range:10mArms~150Arms(50Hz/60Hz)
♦ Max Continuous Current:300Arms
♦ Linear Output Range DC 4-20mA
♦ Three sizes available
♦ TU10P-CL420 : 5-100A, 10mm, clamp on, split core, True RMS AC current measurement
♦ TU16P-CL420 : 5-150A, 16mm, clamp on, split core, True RMS AC current measurement
♦ TU24P-CL420 : 5-300A, 24mm, clamp on, split core, True RMS AC current measurement

Other 1 :
♦ All materials used are RoHS compliant
♦ AC current Sensor/Current Transducer applications like power meter current detectors or equipment over current protection circuits