With a construction that prevents surge events from being shunted into the ground and power plane, Littlefuse’s TwinChip SDP Series SIDACtor protection device provides improved DSL overvoltage protection as well as broadband driver amplifier protection for the secondary side of coupling transformers. The bidirectional device limits DSL secondary line voltage to a 43V peak with a surge current rating up to 100A for a lower and more stable off-state capacitance than typical thyristor overvoltage protection.
Operating at a frequency range of 1 MHz to100 MHz, Raditek Inc. announced the ROCXO-26 series oscillator. The device achieves 0.1 ppm frequency accuracy and 5V DC or 12 V DC supply voltage. Features include stability up to ±0.05 × 10-6, low aging, and compact package.
With seven different cap options and a choice of LED, the JS Series of 12mm2 illuminated momentary tactile switch provides cosmetic design choices for control in applications such as A/V equipment, consumer electronics, and test instruments. Made of polycarbonate in a nylon housing, the 12V DC logic-level switch has a tested electrical life of 100,000 cycles. Additional features include a contact resistance of less than 50mW (initial) and a dielectric strength of 1000Vrms (minimum) with an insulation resistance of over 100mW (minimum).
Operating in the 2.4GHz band, the Nordic Semiconductor nRF24L01+ single-chip transceiver IC offers a 250kbps data rate option mode with a -94dBm sensitivity for up to triple the operating range over previous parts. Supporting up to six simultaneous wireless devices, the IC has a peak current of 13.5mA, enabling enough of a power budget to run a product on standard coin cell batteries.
With a power-saving quiescent current of 3mA and a gain of 10dB, Avago’s ACPM-7353 power amplifier can deliver power levels up to 11 dBm, extending operation in portable devices without compromising performance. Deployable using high, mid, or active-bypass power modes, the device supports cellular and USPCS dual-band frequencies with an RF input port for each band. Based on the fifth generation of its revolutionary CoolPAM technology, the Avago amplifier achieves up to a 10 percent extension of battery life over previous CDMA/UMTS network products.
The 60-600 high current capacity 256-relay crosspoint matrix from Pickering Interfaces can switch voltages up to 30V DC or 250V AC. With features including a 10A rating per channel the 1U rackmount device is deployable in a variety of matrix configurations, from 64 × 4 to 16 × 16, one pole, with 8-way high-power D-Type connectors for both the X- and Y-axis connections.
Ansoft Corporation announced two software upgrades for the design and analysis of electromagnetic devices. Maxwell v12 is electromagnetic field simulation software used for the design and analysis of 3D/2D structures, such as motors, actuators, transformers and other electric and electromechanical devices common to automotive, military/aerospace and industrial systems. RMxprt v12 is a specialized software program dedicated to the design of electric machines.
Improving the environment is always a good idea, but wireless companies are finding ways to go green while bringing more “green” to their bottom lines.
Intended for applications such as solid-state lighting where the output is a regulated current instead of a regulated voltage, the TPS40211 non-synchronous boost controller can drive multiple 1W to 5W high-brightness LEDs in series when the input voltage is less than the voltage required. Using a fixed-frequency current-mode control for improved transient
Utilizing high-density SMT construction, the multi-package PMK225 line of switching power supplies offers case sizes up to 30 percent smaller than products with similar output power. Presenting power densities of up to 4W/in3, the device is available in U-Channel, enclosed, or DIN-Rail mount configurations. Features of the UL/EN60950-1-approved power supply include short circuit, overvoltage and over current protection with an integral power-good LED indicator and screw terminal input/output connections.
Suited for driving large flywheel loads without additional gearing, the QCI-A34L-1 servo motor can handle inertial miss-matches as great as 100:1. Providing a 185 oz-in (1.3Nm) of continuous torque, 260 oz-in (1.8Nm) of peak torque, and 100W of continuous mechanical power from an input of 4.5A, the motor can operate at speeds of up to 2000 RPM.
The ‘INSTRUMET’ 19” case range from METCASE conform to the DIN and IEC standards for full and half width 19” equipment, and accept standard 3U subracks and chassis. Typical applications include test and measurement devices, communications equipment, medical equipment, and laboratory systems. The aluminium cases are available in three standard sizes: 3U × 10.5” × 13.8”, 3U × 19” × 13.8” and 3U × 19” × 17.7”.
The UPSICAP passive and active sensors measure ambient temperature and relative humidity. The tiny (9 mm × 8 mm) passive elements vary their capacitance with humidity and their resistance with temperature, and they are fully interchangeable without recalibration.
Xilinx announced the immediate availability of radiation-tolerant Xilinx VirtexR-4QV FPGAs. The new Virtex-4QV family for space applications offers multiple platforms to meet the processing needs of video, audio, radar streams, and packet processing functions.
Available in both single- and dual-output configurations, the SDR250 Series of 81.2 mm × 127.0 mm × 38.10 mm power supplies claims a power density of 10.4W/in³ and can deliver up to 250W with 16 CFM of forced air cooling. The 11 single-output models can provide from 5V DC to 60V DC and the 6 dual-output models provide combinations of 3.3V, 5V, 12V, 24V and 48V DC