SMD common mode chokes for data lines
26 September 2001
Passive Components
Vacuumschmelze's new series of very compact common mode chokes provides superior common mode attenuation for EMI reduction, improves board space and shortens the length of PCB traces important for space-limited or sensitive board designs. The chokes can be used in 2-wire line applications (package 5011), eg xDSL, ISDN U-interface as well as in all 4-wire line applications (package 5012), eg T1/E1, ISDN S-interface. Compared to existing designs, a reduction in size by about 50% has been achieved, claims Vacuumschmelze.
By using a new generation of amorphous miniature tape-wound cores the new surface mountable chokes offer a superior alternative to other ferrite common mode chokes due to their higher impedance and attenuation over the broader frequency ranges found in telecom circuitry. These small-footprint, low profile common mode chokes have a current range up to 300 mA. As a self-leaded component, the new casing 5011 has no internal solder connection, which increases reliability throughout the manufacturing process and in the telecom application.
Dielectric strength is rated at 500 V r.m.s. The parts can also be tailored to address application-specific noise signature specifications.
Avnet Kopp
(011) 444 2333
[email protected]
www.avnet.co.za
Further reading:
Cutting-edge hybrid capacitors
Avnet Silica
Passive Components
Panasonic Industry recently announced the launch of the ZVU Series Hybrid Capacitors, a cutting-edge solution tailored to meet the escalating demands of advanced electronic systems.
Read more...
Low-profile tantalum chip capacitors
Electrocomp
Passive Components
These general-purpose tantalum capacitors from Kyocera AVX are available in multiple case sizes with low profile options.
Read more...
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
iCorp Technologies
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
Electrocomp
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...