How to improve insertion loss performance of surface mount Pi-filters 14 August 2002, TRX Electronics One of the reasons a surface mount EMI filter does not give as good an insertion loss as panel mount types at high frequencies (100 MHz to 1 GHz), is that the interference (EMI) on the track leading to ...
Resettable fuse rated to 33 V 14 August 2002 Bourns has launched a series of 33 V polymeric positive temperature coefficient (PPTC) fuses. The MF-SM100/33V, SM150/33V and SM185/33V provide overcurrent protection and offer design flexibility for ...
Devices keep automotive voltages under control 17 July 2002, Electrocomp In addition to the existing AUTO series of disk varistors for automotive voltages of 12 and 24 V, EPCOS has now developed the 42 V PowerNet series for the future 42 V automotive power supply system. They ...
The complexities of board-level shielding 19 June 2002 When measuring shielding effectiveness, designers must take all issues into account.
The last five years or so has seen an increase in the use of the board-level shield, thanks to cost and size constraints ...
Quad USB 2.0 data line protection device 5 June 2002 The industry's first 4-line protection device to meet the stringent USB 2.0 requirements for high-speed data lines used in computing has been announced by ON Semiconductor. Claimed to deliver a line-to-line ...
PC board fuseholders 5 June 2002, Actum Electronics Developed specifically for use on PCBs, Pudenz's FLR type fuseholders are a logical answer to reduced space availability due to ever-increasing product miniaturisation. The advantage over existing G-type ...
Single and dual EMI filters with ESD protection 8 May 2002 On Semiconductor's NZF220TT1, NZF220DFT1 are low-pass filters that eliminate or reduce high frequency signal or high-speed transients from the main signal. They offer transient overvoltage protection ...
Surge arresters with pluggable 40 kA protection 8 May 2002, Surge Technology Surge Technology's locally-manufactured DEHNguard-T lightning surge arresters are DIN-rail mounted and can withstand surge currents of up to 40 kA. The pluggable units consist of a base section which, ...
Comparison of technologies used in surge protection devices 24 April 2002 The solutions employed to protect low voltage networks against transient overvoltages induced by lightning strikes - surge protection devices (SPDs) - are now widely spread. However, the choice between ...
Lightning surge protectors 24 April 2002 A new lightning surge protector from Webb Industries has been introduced to protect sensitive equipment.
The PolyPhaser DSX-D surge protector is designed to work from 0,8 to 2,2 GHz and is fully weatherised. ...
Miniature multilayer varistors 24 April 2002 BCcomponents has extended its popular range of varistors when it launched the new smaller 0603 size multilayer varistor (MLV). This MLV is designed for surge suppression applications and electrostatic ...
Dual element transient voltage suppressors 24 April 2002 Offering design engineers the ultimate in high density circuit protection, AVX introduced a dual-element 0405 MultiGuard multilayer ceramic TVS array. This line of surface mount chips offer the equivalent ...
First lead-free resettable fuses in the industry 24 April 2002, Electrocomp Bourns expanded its Multifuse product line with the release of a range of lead-free polymeric positive temperature coefficient (PPTC) battery strap devices designed for the protection of all types of ...
Feedthrough caps for EMI suppression 24 April 2002 AVX manufactures a series of miniature ceramic chip components that combine capacitor and inductor elements in a single distributed constant circuit filter. Designated the W2H/W3H Series, these surface ...
Internationally-approved fuses 24 April 2002, Actum Electronics In its modern factory, using sophisticated, specially developed precision equipment, ELU produces fuses and fuseholders which conform to various DIN-SEMKO-VDE-UL and CSA specifications.
ELU components ...
Battery strap resettable fuses 24 April 2002, Electrocomp Bourns is offering Multifuse polymeric positive temperature coefficient (PPTC) strap components designed to enhance the safety and performance of rechargeable battery packs. The Multifuse product line ...
Tiny high-current beads 24 April 2002 Murata's 0603 sized ferrite beads can suppress noise on power supply lines in high performance digital equipment. As the number of peripherals that can be connected together by systems like USB increases, ...
Lightning protection for office and domestic use 24 April 2002, Surge Technology Surge Technology's locally designed and manufactured SurgeGuard range of lightning protectors are available in three types to protect computer networks, fax machines, video recorders, satellite decoders ...
Cable, connectors and electromagnetic compatibility 24 April 2002 Wire and cable can often cause EMC problems that need to be considered early in the design phase. Here, Ron Brewer describes four fundamental design requirements to be followed to avoid EMC problems in ...
