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.


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Omschrijving Prijs Resistance Package/Case Technology Tolerance Power Rating Temperature Coefficient Automotive Standard Dimensions Length Depth Height Series Minimum Operating Temperature Maximum Operating Temperature
RS-stocknr. 804-8921
FabrikantRS PRO
€ 0,001
Each (On a Reel of 5000)
Aantal stuks
10kΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 717-5353
FabrikantRS PRO
€ 0,007
Each (On a Reel of 5000)
Aantal stuks
127Ω 1206 (3216M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - RS -55°C +155°C
RS-stocknr. 737-9120
FabrikantRS PRO
€ 0,004
Each (On a Reel of 10000)
Aantal stuks
10kΩ 0402 (1005M) Thick Film ±1% 0.063W ±100ppm/°C - - - - - RS -55°C +155°C
RS-stocknr. 804-9000
FabrikantRS PRO
€ 0,001
Each (On a Reel of 5000)
Aantal stuks
100kΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 804-8845
FabrikantRS PRO
€ 0,002
Each (On a Reel of 5000)
Aantal stuks
1kΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 804-8760
FabrikantRS PRO
€ 0,002
Each (On a Reel of 5000)
Aantal stuks
100Ω 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 804-8959
FabrikantRS PRO
€ 0,002
Each (On a Reel of 5000)
Aantal stuks
20kΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 713-7067
FabrikantRS PRO
€ 0,004
Each (On a Reel of 5000)
Aantal stuks
39kΩ 0805 (2012M) Thick Film ±5% 0.125W ±100ppm/°C - - - - - RS -55°C +155°C
RS-stocknr. 804-8791
FabrikantRS PRO
€ 0,002
Each (On a Reel of 5000)
Aantal stuks
220Ω 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 717-2216
FabrikantRS PRO
€ 0,007
Each (On a Reel of 5000)
Aantal stuks
121Ω 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - RS -55°C +155°C
RS-stocknr. 802-9668
FabrikantRS PRO
€ 0,004
Each (On a Reel of 5000)
Aantal stuks
4.7kΩ 1206 (3216M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 717-4704
FabrikantRS PRO
€ 0,008
Each (On a Reel of 5000)
Aantal stuks
1206 (3216M) Thick Film ±5% 0.25W ±200ppm/°C - - - - - RS -55°C +155°C
RS-stocknr. 716-9169
FabrikantRS PRO
€ 0,004
Each (On a Reel of 10000)
Aantal stuks
12.1kΩ 0402 (1005M) Thick Film ±1% 0.063W ±100ppm/°C - - - - - RS -55°C +155°C
RS-stocknr. 717-2994
FabrikantRS PRO
€ 0,007
Each (On a Reel of 5000)
Aantal stuks
44.2kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - RS -55°C +155°C
RS-stocknr. 804-8716
FabrikantRS PRO
€ 0,001
Each (On a Reel of 5000)
Aantal stuks
22Ω 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 802-9655
FabrikantRS PRO
€ 0,004
Each (On a Reel of 5000)
Aantal stuks
3kΩ 1206 (3216M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 804-6607
FabrikantRS PRO
€ 0,003
Each (On a Reel of 5000)
Aantal stuks
100kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 804-7230
FabrikantRS PRO
€ 0,001
Each (On a Reel of 10000)
Aantal stuks
22kΩ 0402 (1005M) Thick Film ±1% 0.063W ±100ppm/°C - - - - - - -55°C +155°C
RS-stocknr. 713-6783
FabrikantRS PRO
€ 0,004
Each (On a Reel of 5000)
Aantal stuks
12Ω 0805 (2012M) Thick Film ±5% 0.125W ±200ppm/°C - - - - - RS -55°C +155°C
RS-stocknr. 804-8867
FabrikantRS PRO
€ 0,002
Each (On a Reel of 5000)
Aantal stuks
1.8kΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
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