Integrated Electronics Technology Pvt. Ltd

Wagle Estate, Thane, Maharashtra

Shunts should be mounted with manganin resistive blades in a vertical position in order topromote the free convectional Ow of air. If vertical mounting is not practical, forced air cooling or addingheat sinks to the blocks can reduce the operating temperature. The manganin blades must never exceed+145C, otherwise permanent resistance change may occur.

When current of 100A or greater is passing through the shunt, the major portion of heat generated is dissipated by conduction through the shunt terminal blocks into the connecting buss bar or cable. Thereforeit is necessary to insure that good contact is made between the shunt terminal blocks and the conductorterminals and that the conductors have adequate cross section to keep the temperature of the shunt fromexceeding 145C ( 125C recommended ).

If the shunt is mounted in an enclosure, care must be taken to ensure adequate cooling. If the power densityis greater than 1/4 watt per square inch of the enclosure surface for all enclosed devices, additional coolingmust be supplied in the form of air vents or fans.

Shunts also must be installed in a way that protects them from thermal expansion forces produced from

buss bar or short-circuit forces. Flexible wiring may be required in high pulse current, high vibration, or high temperature applications.

Where possible, all shunts should be mounted on the ground side of the circuit. For circuits above 750VDC, RS shuntsmustbe mounted on the ground side due to the dielectric strength of the shunt base.

Applications :

Solar Generators, Wind Power, Heavy Industry, Welding, Electroplating, Battery Chargers, etc.

Features :

High Precision: 0.25%, 0.1%, 1%, 5%Current Range: 1A to 1200A

INTRONprecision resistorare made by vacuum depositing a controlled film of NiCr on high purity alumina substrate. The resistors are formed using high resolution photolithography. The values are micro trimmed to the exact value with a tolerance of 0.05%. The TCR and tolerance is obtained by process capability and does not rely on a selection process.Precision Resistorsets matched to precise tolerance and TCR can be given.

Intron is high quality manufacturer of precision resistors and foil resistors distributer.

Features :

High Precision: 0.05%, 0.1%, 0.2%, 0.5%, 1%

Low Temperature Co-efficient: 5, 10, 15, 25 ppm/C (tested between 25 , 75 & 125C) Wide Resistance Range:10 to 1M with any odd value possible.

Radial lead design: Lead pitch of 0.1, 0.2, 0.4 Lead frame design available on request.

Wattage: 1/6W, 1/4W, 1/2W @ 70C.

Applications :

Precision weighing scales, Temperature and Chart recorders, Calibration equipment, Testing and measuring equipment, High Precision amplifiers, Current Sensing, High end Audio equipment, etc.

INTRON precision resistor are made by vacuum depositing a controlled film of NiCr on high purity alumina substrate. The resistors are formed using high resolution photolithography. The values are micro trimmed to the exact value with a tolerance of 0.05%. The TCR and tolerance is obtained by process capability and does not rely on a selection process. These resistors are encapsulated using epoxy making them more robust. Precision Resistor sets matched to precise tolerance and TCR can be given.

Features:

Resistive Material : NiCr

Substrate Material : Alumina

Body : Epoxy Encapsulated

Terminals : Tinned Copper wire

Resistance Range : 10 to 1M any odd value possible.

High Precision : 0.05%, 0.1%, 0.2%, 0.5%, 1%

Low TCR : 10, 15, 25 ppm/C (tested between 25 , 75 & 125C) 5ppm/C for values 100 to 100K

Applications:

Precision weighing scales

Temperature and Chart recorder

Calibration equipment

Testing and measuring equipment

High Precision amplifiers

High end Audio equipment

Bulk Metal Foil (BMF) technology out-performs all other resistor technologies available today for applications that require high precision and high stability, and allows production of customer oriented products designed to satisfy challenging and specific technical requirements. The BMF provides an inherently low and predictable Temperature Coefficient of Resistance (TCR) and excellent load life stability for high precision analog applications.

One of the most important parameters influencing stability of SMD resistor is the Temperature Coefficient of Resistance (TCR). Although the TCR of foil resistors is considered extremely low, this characteristic has been further refined over the years. The VSMP Series utilizes ultra high precision Bulk Metal Z-Foil. The Z-Foil technology provides a significant reduction of the resistive elements sensitivity to ambient temperature variations (TCR) and to self heating when power is applied (Power Coefficient of Resistance, or PCR). Along with the inherently low PCR and TCR, Z-Foil technology also provides remarkably improved load life stability, low noise and tight tolerances.

Vishay Foil Resistors (VFR) introduces a new line of Ultra Precision Bulk Metal Z1-Foil technology: wraparound SMD resistor with extended pads for high temperature up to + 225 C (working power: to 330mW at +200 C).

The Z-Foil technology provides a significant reduction of the resistive components sensitivity to ambient temperature variations and applied power changes. Designers now canguarantee a high degree of stability and accuracy in fixedresistor applications using solutions based on Vishaysrevolutionary Z-Foil technology for SMD resistor.

We are a Thane(India) based organization involved in offering high quality products to the clients. All those who are looking for a responsible name supplying Resistor Network & Voltage Dividers can get in touch with us!