Surface Mount Fixed Resistors

Resistors are referred to as a Passive Component. Surface Mount Resistors are more commonly known as SMD (surface mount device) or SMT (Surface mount technology) Resistors. These resistors offer advantages in space saving on Printed Circuit Boards (PCB’s).


Some common package sizes are 0201,0402,0603,0805,1206,1210,2020,2512


SMD Resistors are used in large volumes and are the preferred choice in electronics equipment due to their small size and high reliability. SMD resistors are particularly used in telecommunication, automotive (AEC Q200 qualified) and medical equipment, they also found in personal devices, displays and advanced technology research instruments.


SMD Fixed Resistors


Surface mount fixed resistors are the most widely used resistors as they reduce the flow of the electrical current in circuits. Similar to water flowing along a pipe, the tap controls the flow of water, a resistor controls the flow of current. They work to a fixed value the resistance does not change in temperature or voltage. The most commonly used fixed resistors values are 100KΩ,10kΩ,100Ω, 10Ω


Types of surface mount fixed resistors


  • Thin Film Resistors have a higher precision than the thick film

  • Thick Film Resistors are used for general use due to a lower price point.

  • Moulded Wirewound Resistors offer higher power

  • Foil Resistors for ultra-high precision and really low-Temperature coefficient of resistance

  • Shunts (current sense) Low ohmic values for where current measurement is critical

  • Melf (cylindrical) offering superb pulse load capability

What are surface mount fixed resistors used for?


SMD fixed resistors are very compact and used in most electronic board design. Due to their compact size and the continuous development of ever smaller footprints, this has allowed for the development of ever smaller PCB designs and the ability to get more from the board. The resistors can assist in the reduction of component count on the board.


High Power / Surge / pulse protection


Many manufacturers offer a higher power alternative for the various packages they have available. As an example the 0603 resistor package can vary from 0.1W to 0.25W (rated dissipation 70°C). The higher power alternatives can be used in applications where there is a need to protect against surges / pulses.


What is the difference between Thin Film Resistors and Thick Film Resistors?


The main difference being that the thick film resistors have a paste fired on to the manufacturers chosen substrate. Thin film resistors as the name suggests has an extremely thin metal film that is generally vacuum deposited on to the manufacturers chosen substrate.


...
Read more Read less

Filters

Viewing 1 - 1 of 1 products
Results per page
Description Price
RS Stock No. 182-5515
Mfr. Part No.CRCW08052R20FKEAHP
BrandVishay
kr 0,457
Each (On a Reel of 1000)
Units
Related Products
The Finder interface relay module is an innovative, ...
Description:
The Finder interface relay module is an innovative, ultra-compact electromechanical device equipped with a 230VAC/DC coil and an SPDT 1C/O contact configuration. This narrow design interface relay works as a coupling element used to send control signals to and from ...
For OEM applications in equipment and appliances requiring ...
Description:
For OEM applications in equipment and appliances requiring accurate, cost effective time control. The module requires only an external diode, resistor and relay to switch mains. Individual day, weekday or weekend programme selections over a 7 day period. Six programmes ...
The Temptation UDT universal plug-in digital timer is ...
Description:
The Temptation UDT universal plug-in digital timer is a 3-digit multifunction, multi-time range SPDT (single pole double throw) switch configuration device. It has a wide range of supply voltage ranges between 18VAC and 264VAC or 18VDC and 300VDC. The user ...
Interval (Single Shot), Multi-voltage timer LEIN in a ...
Description:
Interval (Single Shot), Multi-voltage timer LEIN in a 17.5mm DIN rail housing. Supply initiated Interval (Single Shot) timing function7 selectable time ranges. Fine adjustment of selected time range. Multi-voltage input1x SPDT relay output Green LED indication for supply and timing ...