Power Electronics

New Products

Mini Surface-Mount Inductors

DR353 miniature surface-mount inductors feature an open-frame design with a low-seated profile from 0.079 in. above the circuit board. Ideal for applications in portable devices, mobile phones, medical devices, appliances and automotives, they feature an inductance range from 0.10 µH to 560 µH, with a DCR from 0.25 Ω to 28 Ω maximum over a maximum current rating from 0.700 A to 0.040 A.
Datatronic Distribution, Romoland, Calif.
Circle 301 freeproductinfo.net/pet

Power Choke

The Series FW1405 surface-mount power choke is a high-current inductor that uses rectangular copper wire edge-wound on a thermoset epoxy bobbin-base. The base features an integral three-terminal design for optimal part adhesion when soldered to a PCB. Series FW1405 is available in five inductance values ranging from 0.40 µH to 3.9 µH. Current ratings range from 10 A to 26 A. Rated operating temperature is -25°C to +80°C.
API Delevan, East Aurora, N.Y.
Circle 302 freeproductinfo.net/pet

Pull Tester

The portable MidTel MPT-500 Crimp Terminal Pull Test instrument uses a handheld ratchet-action tester to make destructive pull-type force measurements to crimp-on terminals terminated to wire. The digital readout displays the exact fail force point in ½-in.-high digits. It's also a good way to verify production for SPC and other quality-assurance programs in OEM and maintenance applications.
MidTel Technologies Inc., Arlington Heights, Ill.
Circle 303 freeproductinfo.net/pet

Line Filters

Based on the EF20 core, these chokes offer a low-cost solution for line filters in switch-mode power supplies in consumer electronics and for electronic lamp ballasts. Features include a coil former flame-retardant per UL 94V-0; a high-resonance frequency; a closed-core shape for magnetic shielding; and high pulse strength (dielectric withstanding voltage).
Epcos, Iselin, N.J.
Circle 304 freeproductinfo.net/pet

Capacitors

The new CB Series of Capstick® capacitors is made with low-shrinkage PET films, providing increased thermal withstanding during reflow soldering. This advanced technology reduces the tendency of the film chip to expand and lose capacitance during the preheat and reflow cycle. It also has been expanded from 2 mF to 10 mF at 100 V for use in Telecom bus and dc-dc converters from 20 W to 500 W. The flame-retardant shell meets Telecom needle flame test requirements and the lead-frame allows excellent soldering qualities.
ITW Paktron, Lynchburg, Va.
Circle 305 freeproductinfo.net/pet

Test Cards

Model 4510- and Model 4511-QIVC (Quad I-V Card) are multichannel source-measure test cards with expanded operating ranges for the Model 4500-MTS Multi-Channel I-V Test System. They provide four source-measure channels in each of nine slots of the Model 4500-MTS PCI mainframe, allowing up to 36 I-V measurement channels. Each channel offers a high-power current source subchannel, a low-power voltage source sub-channel, and a 5.5-digit analog-to-digital converter for reading a DUT's response to the source stimulus.
Keithley Instruments Inc.,
Cleveland Circle 306 freeproductinfo.net/pet

AC-DC Power Supplies

The SMQ400 Series of single output ac-dc power supplies offers a power density of 6.25 W/cubic in. Measuring 2 in. × 4 in. × 8 in., it is capable of peak loads up to 1.7 times nominal output current ratings, and it eliminates the need to specify larger, more powerful models to handle peak conditions. It accepts inputs from 90 Vac to 264 Vac, and has active pfc to meet international EN61000-3-2 standards. Eight models with output voltages from 12 Vdc to 54 Vdc are available.
XPiQ Inc., Holliston, Mass.
Circle 307 freeproductinfo.net/pet

Overvoltage Protection IC

The NCP346 overvoltage protection circuit is optimized for applications with an external ac-dc adapter, a car charger accessory or a battery recharger. It's ideal for cell phone, digital camera, portable computer, PDA and portable CD player applications. The BiCMOS process on which the NCP346 is built enables it to turn off a series PFET in less than 1 µs and withstands up to 30 V of overvoltage transients (or 25-V steady-state).
ON Semiconductor, Phoenix
Circle 308 freeproductinfo.net/pet

Li-Ion Linear Charger

The LTC4059 single-cell Li-Ion linear charger eliminates the need for three discrete power components, fast charges without system overheating, monitors and reports the value of the charge current, and is offered in the smallest possible package without compromising thermal performance. It uses two discrete components (input capacitor and charge current program resistor) and fits in a 2.5-mm × 2.7-mm footprint — less than half the footprint of a SOT-23 package.
Linear Technology Corp., Milpitas, Calif.
Circle 309 freeproductinfo.net/pet

Window Detectors

The MAX6754-MAX6764 single-/dual-voltage window detectors are suitable for telecom, networking, automotive, power-metering and industrial applications. They monitor system voltages from 5 V to 0.4 V for overvoltage, and undervoltage conditions with ±5%, ±10% or ±15% windows. No external components are required to monitor from 0.9 V to 5 V. All parts have 0.5% hysteresis to prevent chattering at the outputs.
Maxim Integrated Products, Sunnyvale, Calif.
Circle 310 freeproductinfo.net/pet

DC Power Supplies

The 787 Series provides cost-effective dc power sources for any industrial control application. A metal-clad housing offers a shockproof industrial-strength and compact DIN rail-mount design. Primary switch-mode power supplies are available in single- or 3-phase versions with input voltages of 90 Vac to 264 Vac or 325 Vac to 550 Vac; output voltages of 12 Vdc or 24 Vdc; current ratings of 1.3 A, 2 A, 2.5 A, 4 A, 8 A, 10 A or 20 A.
WAGO, Germantown, Wis.
Circle 311 freeproductinfo.net/pet

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