The PARKER HANNIFIN electronic plug amplifier VS 111 provides control for proportional pressure, directional, and throttle valves.

The plug amplifier may be mounted directly on the proportional solenoids and secured with a screw. The output of the amplifier supplies DC current for controlling one proportional solenoid.

This current is proportional to the command signal at the input of the amplifier. Through this, together with a proportional valve, an infinitely variable adjustment can be made to the pressure or flow.

Product Features:

• Solenoid control

• Simple installation, direct on valve

• Standard voltage or current signals for command signal inputs

• Capable of PLC control

• Solenoid current independent of temperature

• Solenoid connection 2+PE as per EN 175301-803

• Control connection 6+PE as per DIN 43651

IMPORTANT NOTE: Discontinued Item. Limited Availability from existing stocks in NEW SURPLUS  or USED Conditions.

For additional information please consult the supplied documentation or contact us.

The NJM78M00 series of 3-Terminal Positive Voltage Regulators by NISSHIMBO MICRO DEVICES INC. is constructed using the New JRC Planar epitaxial process. These voltage regulators employ internal current-limiting, thermal-shutdown and safe-area compensation making them essentially indestructible. If adequate heat sinking is provided, they can deliver in excess of 500mAoutput current. They are intended as fixed voltage regulation in a wide range of applications including local or on-card regulation for elimination of noise and distribution problems associated with single point regulation. In addition to their use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.

Product Features

Internal Short Circuit Current Limit

Internal Thermal Overload Protection

Excellent Ripple Rejection

Guaranteed 500mA Output Current

Package Outline TO-220F, TO-252

Bipolar Technology

Please refer to the supplied documentation or contact us for additional information.

Surface Acoustic Wave (SAW) devices are components that make use of the ability of piezoelectric materials to convert acoustic (i.e. mechanical) waves into electromagnetic signals, and vice-versa. By far, the most common SAW devices are those which perform a filtering operation, also known as SAW filters. SAW Band Pass Filters (SAW BPF) sort signals by frequency the most widely used substrates being quartz (SiO2), lithium niobate (LiNbO3) and Lithium tantalite (LiTaO3) that are very brittle materials.

Usually SAW filters operate from 600 MHz to 2 GHz frequency range in mobile environment. Based on IF (Intermediate Frequency) and RF (Radio Frequency) filtering, there are two types of filters, IF SAW and RF SAW filters. In addition, based on construction, there are different  types of offered SAW filters such as IIDT, DMS and ladder.

Main advantages or benefits of SAW filters include:

• they allow electro-acoustic coupling via the transducer

• SAW velocity is 105 times less than that of Electromagnetic (EM) wave. As a result, SAW filters can be used in cases where EM wave based filter designs are impractical to be developed

• SAW filters are less expensive compared to BAW (Bulk Acoustic Wave) filters

• SAW filters are easy in fabrication due to easy access to their structure from the above surface of the filter.

The selection of the right SAW filter for an intended application is based on significant parameters like those listed below. Such filters are produced by different manufacturers such as TAI-SAW, Qualcomm, API, Golledge Electronics, Oscilent, Amplitronix LLC, Vectron, Filtronetics, Microsaw, SAWTRON and others.

• RF or IF type

• RF center frequency

• Bandwidth

• Pass band ripple (dB)

• Power handling capability

• Insertion loss in pass band (dB)

• package type and dimension

Please refer to the specifications of offered SAW filters, the supplied documentation or contact us for additional information.

The 317 type IC voltage regulators are adjustable 3-terminal positive voltage regulators capable of supplying in excess of 1.5 A over an output voltage range of 1.25 V to 37 V. Unlike other IC regulators designed to provide a fixed output voltage, 317 type IC voltage regulators are widely used adjustable positive voltage regulators available in many different packages intended for surface mounting on circuit boards. They are exceptionally easy to use and require only two external resistors to set the output voltage. For getting a stable output the input voltage must be 2 to 3 volt higher than the output.

The 317 type IC voltage regulators are offered by different manufacturers and can be used in commercial equipment and a variety of other applications including but not limited to those where there is a need for an  adjustable regulated power supply circuitry in a single chip providing 1.2V to 37V DC output voltage with up to 1.5A output current capability and very low external components. Furthermore, they also include many other features like short circuit protection, safe area and over heat protection making them essentially blow-out proof and long term performers. 

Product Features / Technical Specifications

Output current in excess of 1.5 Amps

Output voltage adjustable between 1.2V and 37V

Floating operation for high voltage applications

Internal thermal overload protection

Require low external components

Require only two external resistors for output adjustment

Capable of short circuit protection

Over heat shutdown function

Output transistor safe-area compensation

Standard 3-lead transistor packages

Low price

Reliable to use in commercial applications

Maximum input voltage is 40V DC

Low standby current

Indicative Applications

Voltage step down circuits

Lab power supplies

Battery Chargers

Solar Power Supplies

Microcontroller Related Applications

DC to DC converters

Portable Instruments

For additional information please refer to the supplied documentation.

Note: Depending on the availability of the above mentioned product/part at the time of order implementation, alternative products/parts may be supplied of equivalent features and specifications, subject to the prior notification and approval of the buyer.