Compact current sense transformers
2 April 2008
Passive Components
Epcos has developed two series of current sense transformers that – thanks to their space-saving SMT design – are particularly suitable for compact DC-DC converters. They have dimensions of only 8,33 x 7,11 mm and 4,7 x 3,5 mm, respectively. The primary winding is already integrated in all types, thus saving development and placement times. Both series cover winding ratios from 1:20 to 1:125.
The first series represents a compatible solution for existing designs based on an EE5 core. The DC resistance of the primary winding is 0,8 mΩ and the rated current is 20 A for all types of this series. They have a test voltage of 500 V a.c.
The second series was developed as a miniature variant with the significantly more compact E4,2 core. The primary winding is integrated in the coil former in a space saving configuration. Its DC resistance is 2,5 mΩ and its rated current is 7 A. The test voltage of these types is 360 V a.c.
Further reading:
Coupled inductor for high-performance applications
Passive Components
This coil with MnZn core is characterised by its high permeability and extremely low RDC values, which achieves excellent power density and very high efficiency.
Read more...
Power inductors
Passive Components
he HTF-MP series is more suitable for complex multiphase power supply applications in design, effectively meeting the needs of ultra-thin and high-power devices.
Read more...
SMT power inductors
Future Electronics
Passive Components
The Würth Elektronik WE-MXGI SMT power inductors are the latest addition to Würth Elektronik’s moulded power inductor series, engineered for high-frequency power applications.
Read more...
Large capacitance MLCCs at 100 V
RS South Africa
Passive Components
TDK Corporation has expanded its CGA series for automotive multilayer ceramic capacitors to 10 µF at 100 V in 3225 size.
Read more...
Film and mica capacitors
Actum Electronics
Passive Components
By utilising various polymer dielectrics plastics, Exxelia film and mica capacitors meet most technical requirements and serve all functions from standard filtering to specialised applications.
Read more...
Power-over-coax inductors
RS South Africa
Passive Components
TDK has expanded the ADL3225VF series of wire-wound inductors for automotive power-over-coax (PoC).
Read more...
Thick film power resistors
Passive Components
Vishay has released a new product to the market, its thick film power resistor, which is offered in a clip-mount TO-247 package.
Read more...
Compact EMI suppression capacitors
RS South Africa
Passive Components
These new components from TDK are 20% smaller than previous models and meet Grade III Test B standards for temperature, humidity, and bias.
Read more...
HiRel components from Kyocera AVX
Passive Components
Kyocera AVX Corporation is a leading supplier of advanced components and interconnect solutions, offering a broad selection of passive components and connectors.
Read more...
Tiny power inductor for low noise applications
Passive Components
With the evolution of Bluetooth, chips, sensors and other technologies, the design of TWS earphones is becoming smaller and thinner, and the performance and size requirements of integrated inductors need to follow suit.
Read more...