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Devices, components, assemblies and hardware associated with the design and development of electronic equipment. Includes active and passive components, enclosures, interconnection, optolectronics, power and subassemblies.
Electronic & electrical components subcategories
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Linear Technology releases synchronous buck converter suitable for always-on applications downloadweblink
Linear Technology has released the LTC3639, a 150V input-capable synchronous buck converter that delivers up to 100mA of continuous output current. The device’s internal high side and synchronous power switches, drawing only 12µA at no load while maintaining output voltage regulation, make it suitable for always-on battery-powered applications.
Specialised Imaging launches SFW range of optical triggers targeted at outdoor market
Orbit LT laser triangulation system can verify the quality of sterile and delicate products
Schurter offers sockets and power-entry modules for use in medical technology
Rittal introduces stretch-wrap packaging for its TS 8 range of screw-fastened side panels
Linear Technology releases µmodule regulator featuring differential remote-sense amplifier
Omicron Electronics launches lightweight three-in-one circuit breaker test system
Rofin-Baasel offers ultra-short pulse laser for cutting, drilling and structuring applications
Application note: fast charge circuits for nickel cadmium batteries downloadweblink
According to Linear Technology, the safe, fast charging of nickel cadmium (NiCad) batteries is required for many applications. A short charge time requires high current. A potential difficulty with high-current charging is battery heating. Excessive internal heating degrades the battery and can cause gas venting to the outside atmosphere. Fast charge schemes based on monitoring cell voltage during charge suffer because cell voltage is not necessarily indicative of the battery’s charge ...
White paper: analysis of solid tantalum capacitor leakage current downloadweblink
The leakage current of a solid tantalum capacitor is the sum of several independent factors. From measurements of leakage over a range of test conditions, some degree of separation of these components of the current can be achieved and so the relative importance of factors leading to high leakage can be assessed. There is a background level present directly related to dielectric absorption and it contributes to the loss factor of the capacitor. It is not a true leakage. On top of this ...
White paper: solder pad geometry studies for surface mount of chip capacitors downloadweblink
Solder pad geometry for surface mounting chip capacitors has been examined visually for three types of defects. Visual defects observed as a function of solder pad geometry were opens, misalignment of chips (rotation) and drawbridges. Geometry of the solder pads was seen to play an important role in the visual defects observed. Of particular importance were the overlap of the pad and the capacitor, the width of solder pads and the extension of the solder pad outside the capacitor (in ...
Technical article: Solartron Metrology focuses on laser triangulation for linear measurement downloadweblink
Laser triangulation units use the reflected angle of the projected laser to determine measurements, giving a higher degree of accuracy along a wide measurement range. One such unit — Solartron Metrology’s Orbit LT — provides users with a cost-effective system for linear measurement applications.
Application note: Linear Technology discusses step-down switching regulators downloadweblink
A substantial percentage of regulator requirements involve stepping down the primary voltage. Although linear regulators can do this, they cannot achieve the efficiency of switching-based approaches. The theory supporting step-down (‘buck’) switching regulation is well established and has been exploited for some time. Convenient, easily applied ICs allowing implementation of practical circuits are, however, relatively new. These devices permit broad application of step-down regulation ...
White paper: dielectric response analysis and PD testing of HV bushings downloadweblink
The dielectric breakdown of HV bushings is one of the most frequent failure causes for power transformers. This white paper from Omicron Electronics discusses new diagnostic methods to assess the dielectric condition, including the analysis of the dielectric response and partial-discharge (PD) measurements, and includes several case studies. Practical examples illustrate the importance of capacitance, dissipation factor and particularly dielectric response measurements on HV bushings.
White paper: surface-mount zero-defect design check list downloadweblink
Reliable, high-yield SMT assemblies are easily realised if time is taken in the beginning to ensure yields and reliability. You cannot slap components down on a PC board with solder and hope for manufacturability; the PC board must be designed to be manufacturable.
Technical article: why uninterruptible power supplies are in such demand downloadweblink
Business and organisational processes rely on information technology and this in turn requires a clean source of stable and reliable electrical power. The increasing demands for power on the UK electricity grid are placing unprecedented pressure on an ageing infrastructure and this is becoming even more evident in heavily populated areas such as London’s Canary Wharf. Here, demand for electrical power is greater at times than can be supplied to power data centres and IT operations.
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Data sheet: LTC3639 synchronous buck converter from Linear Technology download
The LTC3639 from Linear Technology is a 150V input-capable synchronous buck converter that delivers up to 100mA of continuous output current.
Data sheet: LTM4637 20A DC/DC step-down µmodule regulator from Linear Technology download
The LTM4637 from Linear Technology is a 20A DC/DC step-down µmodule regulator suitable for applications such as industrial and medical equipment and networking and telecommunications systems.
Product catalogue: information on OKW's range of enclosures and knobs weblink
The 220-page full-colour 2013 Enclosures and Knobs Catalogue from OKW Enclosures includes information on functions, PCB dimensions and application recommendations for the company’s range of plastic enclosures, as well as tuning and control knobs.
Data sheet: LTM8028 µmodule regulator from Linear Technology downloadweblink
Linear Technology is offering the LTM8028, a 1mV-output-ripple µmodule regulator designed to power data converters and high-speed transceivers.
Data sheet: LTC4270/LTC4271 power source equipment controller chipset download
The LTC4270/LTC4271 chipset from Linear Technology is a 12-port power source equipment (PSE) controller designed for use in IEEE 802.3at Type 1- and Type 2-compliant Power over Ethernet systems.
Data sheet: LTC4290/LTC4271 power source equipment controller chipset download
The LTC4290/LTC4271 isolated eight-port power source equipment controller chipset from Linear Technology is designed for use in IEEE 802.3at (Power over Ethernet, or PoE) Type 1- and Type 2-compliant PoE systems.
Application note: wireless audio module wiring example from Circuit Design downloadweblink
This application note from Circuit Design presents a wireless audio module wiring example. It focuses on the WA-TX-01 wireless audio transmitter and the TA-RX-01 wireless audio receiver.
Data sheet: 210 series RoHS-compliant connectors from Fujitsu Components download
The RoHS-compliant 210 series of connectors from Fujitsu Photonics is designed for board-to-board connection. It has an operating range of -55ºC to +105ºC, a current rating of 2ADC and a voltage rating of 250VAC.
Data sheet: feeder pillar from ICEE download
ICEE is offering a feeder pillar manufactured from mild steel or stainless steel. Features include single front-door entry, triangle key locks and concealed hinges.
Data sheet: half-height 699 cabinet from ICEE download
The half-height 699 cabinet from ICEE is manufactured from stainless steel and features removable lifting eyes within the roof to simplify installation. The roof is sloped away from the electrical bay to prevent water ingress on access.