Power Electronics

New Products

Cable Connector

The improved strength Power SwivelNut (PSN) connector has ¼-20 brass and ⅜-16 stainless steel rotating threaded nuts. UL-approved, it consists of a tellurium copper crimp barrel that provides a gas-tight connection to the power cable. With the rotating threaded head attached to the barrel, it provides a high current captive hardware termination that eliminates the problem of dropped washers and screws.
Cableco Technologies
Dublin, Calif.

Circle 305 freeproductinfo.net/pet

Precision HV Resistors

Type USG, ultrastable, low TC, precision high-voltage resistors come in three models with voltage ratings of 5 kV (50 MΩ and 75 MΩ), 10 kV (100 MΩ and 150 MΩ), and 15 kV (150 MΩ and 200 MΩ). They use Tetrinox® resistance film with selected core materials and physical geometry for optimization. Temperature coefficient is 10 ppm/°C, -40°C to 85°C, ref. to 25°C. Resistance change after 1000 hr at full rated voltage at 85°C is 0.025% — with a maximum change at 0.05%.
Caddock Electronics
Roseburg, Ore.

Circle 306 freeproductinfo.net/pet

High-Voltage Multiplier

The MVM302P12 3kV, 12-stage miniature hybrid multiplier expands the MVM Series to meet requirements across multiple systems, including vision, imaging, inspection, ion-generating, and electrostatic, and navigation. It delivers an output current of 1 µA with an input voltage up to 800Vp-p. Cascade-able up to 6kV dc output in a surface-mount package, it's suitable for pick-and-place and tape-and-reel manufacturing.
Voltage Multipliers Inc.,
Visalia, Calif.

Circle 318 freeproductinfo.net/pet

CSTBT IGBTs

Using a 5th generation CSTBT chip, NF-Series IGBTs offers a technological breakthrough that allows operation at higher case temperatures with lower losses. Rating options include 600V duals from 150A to 600A and 1200V duals from 100A to 600A. Compatible with H-Series IGBTs with no changes needed to the bus bar or heatsink, they also feature U-Series package technology for low inductance and low thermal impedance.
Powerex, Youngwood, Pa.
Circle 317 freeproductinfo.net/pet

Power Connectors

QikPwr connectors are ideal for two-pole applications in telecom and OEM/industrial applications. Ensuring quick, accurate connections and disconnections, they provide a color-coded solution wherever quickly disconnecting ac or dc power applications are needed. Connectors are rated for 50A, 175A, and 350A, and suitable for use in continuous ac or dc operations. All housings are UL94VO rated.
FCI-Burndy Products
Manchester, N.H.

Circle 308 freeproductinfo.net/pet

Under/Overvoltage Detectors

The MAX6457-MAX6460 low-power, high-voltage detectors monitor voltages up to 28V. The MAX6457 is a single voltage monitor for under or overvoltage detection. The MAX6458 includes two comparators to provide voltage window monitoring with a single output. The MAX6459 is a single window monitor or two independent voltage monitors, while the MAX6460 includes a single comparator with an external reference that can provide a voltage as well as accept one.
Maxim Integrated Products
Sunnyvale, Calif.

Circle 316 freeproductinfo.net/pet

Frequency Converters

The BL-Plus series of frequency converters supplies clean, regulated, high-power ac in a single cabinet that requires minimal floor space. They're ideal for industrial product testing, airborne, and shipboard equipment testing, incorporating multipulse input rectification and provide for low input current distortion. Special soft-start circuitry reduces input startup surges, and isolation is provided by the input transformer. Output voltage of 0Vac to 132Vac, L-N is standard. Standard output frequency is fixed at 50 Hz, 60 Hz, or 400 Hz, and variable from 45 to 500 Hz.
Behlman, Hauppauge, N.Y.
Circle 304 freeproductinfo.net/pet

Chip Resistor

The HVC resistor family provides increased voltage handling capability in compact standard-size resistor chips, which includes devices capable of handling continuous voltages up to 3000V. They're offered with limiting element voltages of 1000V, 2000V, and 3000V in 1206, 2010, and 2512 industry-standard chip sizes, respectively. Power ratings for the three chip sizes range from 0.3W to 1W at 70°C. Resistance values range from 100kΩ to 1GΩ, with tolerances down to 0.5% and TCRs to 100ppm/°C. Operating temperatures range from -55°C to 150°C.
IRC Inc., Boone, N.C.
Circle 311 freeproductinfo.net/pet

Telecom Fuse

The new Model B1250T TELEFUSE is a powercross protection fuse designed for use in telecom circuit applications requiring low current protection with high surge tolerance. Ideal for protecting central office and customer premise equipment, it allows overcurrent compliance with telecom specifications, including Telcordia GR-1089, UL 60950, and ITU K.20 and K.21.
Bourns Inc., Riverside, Calif.
Circle 303 freeproductinfo.net/pet

Triple LDO

ISL6411 ultralow noise triple output linear regulator includes microprocessor reset and is optimized for powering wireless chip sets. It reduces board space and bill of materials by combining three LDO regulators, a reset function, and extensive circuit protection functions into a single chip. It accepts a 2.5V to 3.8V input and provides three regulated output voltages: 1.8V (LDO1) for baseband processor/media access controller (BBP/MAC), 2.84V (LDO2) for analog functions, and 2.84V (LDO3) for voltage-controlled oscillator (VCO). On-chip logic provides sequencing for BBP/MAC and analog supply voltage outputs.
Intersil Corp., Palm Bay, Fla.
Circle 310 freeproductinfo.net/pet

500V MOSFETs

The new 500V L-Series of HEXFET® power MOSFETs has a fast-recovery body diode for reliable operation of zero-voltage switching (ZVS) power supplies, especially at light loads. Eliminating the need for series Schottky and anti-parallel high-voltage diodes, they exhibit nearly a 70% reduction in reverse recovery time (Trr max), as low as 250 ns. They demonstrate more than 70% reduction in diode reverse recovery charge (Qrr) reducing switching losses, and more than three times better diode peak recovery (dV/dt) immunity compared to standard devices.
International Rectifier, El Segundo, Calif.
Circle 301 freeproductinfo.net/pet

Low-Noise Fans

Panther dc fans operate at switching levels above 20 kHz, producing a soft commutation that results in a quiet operation above the audible range for human hearing. The stator motion is a square wave that's switched on and off before and after the peak torque position. It's ideal for PWM and temperature speed control of applications such as PCs, servers, and power supplies.
JMC Products, Austin, Texas
Circle 314 freeproductinfo.net/pet

3-Phase Buck Controller

The LTC3732 synchronous step-down switching regulator drives N-channel external power MOSFET stages in a phase-lockable fixed frequency architecture. The 3-phase controller drives its output stages with 120° phase separation at frequencies of up to 600 kHz per phase. It provides output currents up to 60A while maintaining current balancing between three output power stages to within ±5%. With its integrated 5-bit VID DAC, output voltages of 1.075V to 1.85V are programmable in 25-mV increments to conform to the Intel's VRM 9.0 and 9.1 requirements.
Linear Technology Corp.
Milpitas, Calif.

Circle 315 freeproductinfo.net/pet

Flux Density Ferrite

Ferrite material 3C92 is intended for output chokes in power supplies. These carry dc current with a small ac ripple. A high saturation level is required for a high dc current without much inductance loss. The energy storage value of a choke is proportional to the square of peak flux density and determines the core volume required.
Ferroxcube USA Inc.
El Paso, Texas

Circle 309 freeproductinfo.net/pet

Power Distribution Terminal

Part No. 285-407 power distribution terminal simplifies wiring when using large conductors to eliminate voltage drop in industrial applications. The WAGO Power Clamp System allows larger conductors/feeder circuit (2 AWG to 000 AWG) to be wired to the power clamp and smaller conductors/branch.
WAGO, Germantown, Wis.
Circle 320 freeproductinfo.net/pet

Quarter-Brick DC-DC Converter

Featuring a 50A/3.3V output in a standard quarter-brick size, the QPW050A offers power density of 119W/in3, making it deliver 93% efficiency at 3.3Vout. It operates with input voltages ranging from 36Vdc to 75Vdc, delivering low output voltages from 3.3V to 0.8V.
Tyco Electronics Power Systems, Dallas, Texas
Circle 319 freeproductinfo.net/pet

SMT Power Inductors

The SMP 5057 Series of surface-mount inductors targets dc-dc converters and switchmode power supplies. Specifications include inductance from 3.9 ±20% µH (at 1 kHz) to 100,000 ±10% µH (at 100 kHz), current ratings from 9.75Adc to 0.090Adc, and saturation current from 24Adc to 0.146Adc.
Gowanda Electronics, Gowanda, N.Y.
Circle 312 freeproductinfo.net/pet

BGA Heatsinks

Ball Grid Array heatsinks are compatible with semiconductor BGA packages and provide cooling capabilities and attachment methods. Heights range from 6 mm for low profile applications to 35 mm. They also feature four methods to attach the heatsink to the BGA device.
Aavid Thermalloy LLC
Concord, N.H.

Circle 302 freeproductinfo.net/pet

High-Speed Micropower Comparator

TS7211 high-performance BiCMOS comparator features micropower consumption, rail-to-rail inputs, and a push-pull output. It comes in a space-saving SOT23-5L package and is pin-compatible with leading competitive devices. Key specifications include a 6-µA typical current consumption and 500 ns response time (both at Vcc = 5V) to yield a high speed-to-power ratio. It's specified for operation at 2.7V, 5V, and 10V.
STMicroelectronics Inc., Lexington, Mass.
Circle 321 freeproductinfo.net/pet

DC-DC Converter IC

This inductorless, 100mA dc-dc converter has greater than 90% efficiency, making it ideal for portable and system voltage conversions. It achieves greater than 90% efficiency at full load with an operating current of 120 µA. Using two low-cost capacitors, the charge-pump's 100mA output replaces switching regulators, eliminating inductors and their associated cost, size, and EMI. The FAN5660 inverts a 1.5V to 5.5V input to a corresponding -1.5V to -5.5V output.
Fairchild Semiconductor
San Jose, Calif.

Circle 307 freeproductinfo.net/pet

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