Product

GPS Time and Frequency Standards

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Quartzlock (UK) Ltd.

Quartzlock (UK) Ltd.

Our range of GPS disciplined Rubidium Oscillator, OCXO and TCXO, low cost and stable, time and frequency references in a variety of rack mount and desktop sizes to suit all applications. For a technical discussion of GPS go here or select a link below for product information.

Product

Primary VoltageE Standard: Cryocooler (Closed- Cycle Refridgerator) System

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Hypres, Inc.

Hypres, Inc.

The Hypres Primary Voltage Standard System with cryocooler (closed-cycle refrigerator) is a complete, computer controlled system implementing a variety of voltage calibration functions. This system configuration is a cryogen-free complete Primary Voltage Standard System with parameters that are identical to the liquid helium version.

Product

Power Transformer Testing

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Weshine Electric Manufacturing Co., Ltd

Weshine Electric Manufacturing Co., Ltd

Transformer insulation resistance deterioration is one of the most common causes of transformer failure: a failing transformer is a costly replacement in an electrical system with the potential for a long downtime.

Product

Transformer Resistance Testing

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Megger Group Ltd.

Megger Group Ltd.

Transformer insulation resistance deterioration is one of the most common causes of transformer failure: a failing transformer is a costly replacement in an electrical system with the potential for a long downtime. If you fail to maintain your transformer with regular insulation resistance testing (as can be carried out by the Megger Transformer Ohmmeter (MTO) series of transformer test equipment) then it’s likely to fail before reaching its maximum operating life.

Product

1 Channel, MIL-STD-1553, Dual Redundant, Transformer Coupled, Assisted Mode Capable (AMC)

FTA

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North Atlantic Industries

FTA - North Atlantic Industries

MIL-STD-1553 is a military standard published by the United States Department of Defense that defines the mechanical, electrical, and functional characteristics of a serial data bus. It was originally designed for use with military avionics, but has also become commonly used in spacecraft On-Board-Data-Handling (OBDH) subsystems, both military and civil. It features a dual, redundant, balanced-line, physical layer; a (differential) network interface; time division multiplexing; half-duplex command/response protocol; and up to 31 remote terminals (devices).

Product

Standard Normally Open

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Renesas Electronics Corp.

Renesas Electronics Corp.

Is an optically coupled element that combines a GaAs infrared LED on the input side with anormally-open MOS FET on the output side to realize an excellent cost performance.The small, thin package and high sensitivity of this element makes it ideal for battery-driven mobile devices, and its small offset voltage at power-on and good linearity are also make it suitable for controlling micro analog signals.

Product

Standard Connectors

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C.C.P. Contact Probes Co., LTD.

C.C.P. Contact Probes Co., LTD.

The Standard Connector Series aims to offer a comprehensive selection of internationallycompatible connectors. Its smart design and simple structure makes it very cost effectiveeven at small volumes.

Product

Injection Transformer

J2101A

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PICOTEST Corp.

J2101A - PICOTEST Corp.

The injection transformer is presently the prevalent method for connecting the network analyzer to the circuit being tested, and is primarily used for control loop stability measurements. The goal of the transformer is to inject a signal into the control loop being measured, without impacting the performance of the loop. In order to accomplish this to a reasonable degree, The transformer is isolated and therefore is capable of floating on a high voltage, such as a Power Factor Corrector (PFC), which is often close to 400VDC. Measuring voltages that exceed the voltage rating of the FRA inputs require attenuation probes.

Product

Power Transformers

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Pulse Electronics

Pulse Electronics

Power Transformers are used to convert voltages and isolate signals for functionality and safety.   Our broad line of catalog and custom solutions range from mW to 5-10kW and are used in multiple topologies including flyback, forward, push-pull, resonant, LLC and phase shifted full bridges.   Typical operating frequencies are between 80-500kHz but solutions can be adapted for greater than 1MHz operation.

Product

VXI Rubidium/GPS Frequency Standard

3352A Series

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Astronics Corporation

3352A Series - Astronics Corporation

The Racal Instruments™ 3352A Rubidium frequency standard module and the 3352A-GPS, its GPS-disciplined companion, set a new standard for high density functionality in a single width VXI module. Using ANSI Standard M-Module building blocks, the 3352A series integrates the functions of a Rubidium oscillator and clock distribution together with an optional trigger distribution module and an optional digital I/O (DIO) module.

Product

Variable Transformer DC Power Supplies

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Carl E. Holmes Company

Carl E. Holmes Company

Variable DC power supplies are AC to DC power supplies with a variable DC output. The output can be varied with a Variable Transformer (also known as variac). The Variable Transformer can be adjusted manually or with a motorized control. The AC input power can be single phase or three phases. With single phase AC input, the DC output ripple is very high (50%). With three phase AC input, the DC output ripple is low (5%). This would be a key benefit for selecting three phase AC input instead of single phase.