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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Description Price Resistance Package/Case Technology Tolerance Power Rating Temperature Coefficient Automotive Standard Dimensions Length Depth Height Series Minimum Operating Temperature Maximum Operating Temperature
RS Stock No. 166-4651
Mfr. Part No.ACPP060310KBE
BrandArcol
PHP6.423
Each (On a Reel of 1000)
units
10 kΩ 0603 (1608M) Metal Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +155°C
RS Stock No. 809-8869
Mfr. Part No.RWS5 180R F B
BrandArcol
PHP54.62
Each
units
180 Ω 0805 (2012M) Wire Wound ±1% 5W ±20ppm/°C - - - - - RWS -55°C +155°C
RS Stock No. 809-8945
Mfr. Part No.RWS5 22R J B
BrandArcol
PHP51.45
Each
units
22 Ω - Wire Wound ±5% 5W ±20ppm/°C - - - - - RWS -55°C +155°C
RS Stock No. 809-2638
Mfr. Part No.RWS3 R15 F B
BrandArcol
PHP92.11
Each
units
150 mΩ - Wire Wound ±1% 3W ±90ppm/°C - - - - - RWS -55°C +155°C
RS Stock No. 809-8884
Mfr. Part No.RWS5 R27 J B
BrandArcol
PHP53.55
Each
units
270 mΩ - Wire Wound ±5% 5W ±90ppm/°C - - - - - RWS -55°C +155°C
RS Stock No. 172-2180
Mfr. Part No.RWS10 10R J
BrandArcol
PHP95.808
Each (In a Bag of 100)
units
10 Ω - Wire Wound ±5% 10W ±50ppm/°C - - - - - RWS -55°C +275°C
RS Stock No. 809-8872
Mfr. Part No.RWS5 R18 J B
BrandArcol
PHP53.55
Each
units
180 mΩ - Wire Wound ±5% 5W ±90ppm/°C - - - - - RWS -55°C +155°C
RS Stock No. 172-2107
Mfr. Part No.ACPP06035K6BE
BrandArcol
PHP9.176
Each (On a Reel of 5000)
units
5.6 kΩ 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +125°C
RS Stock No. 809-4707
Mfr. Part No.RWS3 4R7 F B
BrandArcol
PHP55.30
Each
units
4.7 Ω - Wire Wound ±1% 3W ±50ppm/°C - - - - - RWS -55°C +155°C
RS Stock No. 172-2084
Mfr. Part No.ACPP0603160RBE
BrandArcol
PHP9.176
Each (On a Reel of 5000)
units
160 Ω 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +125°C
RS Stock No. 668-8454
Mfr. Part No.ACPP06034K7BE
BrandArcol
PHP21.63
Each (In a Pack of 5)
units
4.7 kΩ 0603 (1608M) Metal Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +155°C
RS Stock No. 172-2110
Mfr. Part No.ACPP06037K5BE
BrandArcol
PHP9.176
Each (On a Reel of 5000)
units
7.5 kΩ 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +125°C
RS Stock No. 172-2114
Mfr. Part No.ACPP0805 10K B 25PPM
BrandArcol
PHP9.901
Each (On a Reel of 5000)
units
10 kΩ 0805 (2012M) Thin Film ±0.1% 0.1W ±25ppm/°C - - - - - ACPP -55°C +125°C
RS Stock No. 668-8662
Mfr. Part No.ACPP08053K0BE
BrandArcol
PHP27.556
Each (In a Pack of 5)
units
3 kΩ 0805 (2012M) Metal Film ±0.1% 0.1W ±25ppm/°C - - - - - ACPP -55°C +155°C
RS Stock No. 809-5110
Mfr. Part No.RWS1 1R F B
BrandArcol
PHP84.61
Each
units
1 Ω - Wire Wound ±1% 1W ±50ppm/°C - - - - - RWS -55°C +155°C
RS Stock No. 172-2124
Mfr. Part No.ACPP080533RBE
BrandArcol
PHP13.32
Each (On a Reel of 5000)
units
33 Ω 0805 (2012M) Thin Film ±0.1% 0.1W ±25ppm/°C - - - - - ACPP -55°C +125°C
RS Stock No. 781-1286
Mfr. Part No.RWS7 R1 J
BrandArcol
PHP80.52
Each
units
100 mΩ 0603 (1608M) Wire Wound ±5% 7W ±90ppm/°C - - - - - RWS -55°C +275°C
RS Stock No. 809-8780
Mfr. Part No.RWS5 1R F B
BrandArcol
PHP52.48
Each
units
1 Ω 0805 (2012M) Wire Wound ±1% 5W ±50ppm/°C - - - - - RWS -55°C +155°C
RS Stock No. 172-2091
Mfr. Part No.ACPP060322KBE
BrandArcol
PHP9.176
Each (On a Reel of 5000)
units
22 kΩ 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +125°C
RS Stock No. 172-2106
Mfr. Part No.ACPP060362RBE
BrandArcol
PHP9.176
Each (On a Reel of 5000)
units
62 Ω 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - ACPP -55°C +125°C