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. 809-8787
FabrikantnummerRWS5 1R5 F B
FabrikantArcol
€ 0,94
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1.5Ω - Wire Wound ±1% 5W ±50ppm/°C - - - - - RWS -55°C +155°C
RS-stocknr. 668-8331
FabrikantnummerACPP06031K0BE
FabrikantArcol
€ 0,256
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Aantal stuks
1kΩ 0603 (1608M) Metal Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +155°C
RS-stocknr. 172-2114
FabrikantnummerACPP0805 10K B 25PPM
FabrikantArcol
€ 0,138
Each (On a Reel of 5000)
Aantal stuks
10kΩ 0805 (2012M) Thin Film ±0.1% 0.1W ±25ppm/°C - - - - - ACPP -55°C +125°C
RS-stocknr. 172-2087
FabrikantnummerACPP06031K0BE
FabrikantArcol
€ 0,097
Each (On a Reel of 5000)
Aantal stuks
1kΩ 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +125°C
RS-stocknr. 809-8872
FabrikantnummerRWS5 R18 J B
FabrikantArcol
€ 0,92
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180mΩ - Wire Wound ±5% 5W ±90ppm/°C - - - - - RWS -55°C +155°C
RS-stocknr. 668-8524
FabrikantnummerACPP0805 10K B 25PPM
FabrikantArcol
€ 0,406
Each (In a Pack of 5)
Aantal stuks
10kΩ 0805 (2012M) Metal Film ±0.1% 0.1W ±25ppm/°C - - - - - ACPP -55°C +155°C
RS-stocknr. 781-1321
FabrikantnummerRWS10 10R J
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€ 1,54
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10Ω - Wire Wound ±5% 10W ±50ppm/°C - - - - - RWS -55°C +275°C
RS-stocknr. 781-1298
FabrikantnummerRWS7 10R J
FabrikantArcol
€ 1,12
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Aantal stuks
10Ω 0603 (1608M) Wire Wound ±5% 7W ±50ppm/°C - - - - - RWS -55°C +275°C
RS-stocknr. 668-8505
FabrikantnummerACPP06037K5BE
FabrikantArcol
€ 0,256
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Aantal stuks
7.5kΩ 0603 (1608M) Metal Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +155°C
RS-stocknr. 172-2141
FabrikantnummerRWS7 47R J
FabrikantArcol
€ 0,653
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Aantal stuks
- - Wire Wound ±5% 7W ±20ppm/°C - - - - - RWS -55°C +275°C
RS-stocknr. 809-8774
FabrikantnummerRWS5 R47 F B
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€ 0,94
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470mΩ - Wire Wound ±1% 5W ±90ppm/°C - - - - - RWS -55°C +155°C
RS-stocknr. 809-8783
FabrikantnummerRWS5 1R2 F B
FabrikantArcol
€ 0,94
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1.2Ω - Wire Wound ±1% 5W ±50ppm/°C - - - - - RWS -55°C +155°C
RS-stocknr. 781-1286
FabrikantnummerRWS7 R1 J
FabrikantArcol
€ 1,12
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Aantal stuks
100mΩ 0603 (1608M) Wire Wound ±5% 7W ±90ppm/°C - - - - - RWS -55°C +275°C
RS-stocknr. 172-2084
FabrikantnummerACPP0603160RBE
FabrikantArcol
€ 0,097
Each (On a Reel of 5000)
Aantal stuks
160Ω 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +125°C
RS-stocknr. 668-8592
FabrikantnummerACPP0805200RBE
FabrikantArcol
€ 0,386
Each (In a Pack of 5)
Aantal stuks
200Ω 0805 (2012M) Metal Film ±0.1% 0.1W ±25ppm/°C - - - - - ACPP -55°C +155°C
RS-stocknr. 809-8761
FabrikantnummerRWS5 R27 F B
FabrikantArcol
€ 0,87
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Aantal stuks
270mΩ 0805 (2012M) Wire Wound ±1% 5W ±90ppm/°C - - - - - RWS -55°C +155°C
RS-stocknr. 781-1292
FabrikantnummerRWS7 20R J
FabrikantArcol
€ 1,12
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Aantal stuks
20Ω - Wire Wound ±5% 7W ±20ppm/°C - - - - - RWS -55°C +275°C
RS-stocknr. 809-8780
FabrikantnummerRWS5 1R F B
FabrikantArcol
€ 0,94
Each
Aantal stuks
0805 (2012M) Wire Wound ±1% 5W ±50ppm/°C - - - - - RWS -55°C +155°C
RS-stocknr. 172-2140
FabrikantnummerRWS7 10R J
FabrikantArcol
€ 0,971
Each (In a Bag of 100)
Aantal stuks
10Ω - Wire Wound ±5% 7W ±50ppm/°C - - - - - RWS -55°C +275°C
RS-stocknr. 781-1302
FabrikantnummerRWS7 47R J
FabrikantArcol
€ 1,30
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Aantal stuks
47Ω - Wire Wound ±5% 7W ±20ppm/°C - - - - - RWS -55°C +275°C