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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รายละเอียดสินค้า / Description ราคา / 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. 802-9494
Brand :RS PRO
THB0.142
Each (On a Reel of 5000)
Units
33Ω 1206 (3216M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-6528
Brand :RS PRO
THB0.092
Each (On a Reel of 5000)
Units
10kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-6423
Brand :RS PRO
THB0.217
Each (On a Reel of 5000)
Units
680Ω 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-6366
Brand :RS PRO
THB0.085
Each (On a Reel of 5000)
Units
120Ω 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 802-9507
Brand :RS PRO
THB0.124
Each (On a Reel of 5000)
Units
39Ω 1206 (3216M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-6427
Brand :RS PRO
THB0.09
Each (On a Reel of 5000)
Units
560Ω 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - RS -55°C +155°C
RS Stock No. 802-9539
Brand :RS PRO
THB0.142
Each (On a Reel of 5000)
Units
100Ω 0603 (1608M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 713-6850
Brand :RS PRO
THB0.163
Each (On a Reel of 5000)
Units
100Ω 0805 (2012M) Thick Film ±5% 0.125W ±200ppm/°C - - - - - RS -55°C +155°C
RS Stock No. 804-6509
Brand :RS PRO
THB0.09
Each (On a Reel of 5000)
Units
4.7kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 802-9510
Brand :RS PRO
THB0.142
Each (On a Reel of 5000)
Units
47Ω 0603 (1608M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 713-4210
Brand :RS PRO
THB0.105
Each (On a Reel of 5000)
Units
47kΩ 0603 (1608M) Thick Film ±5% 0.1W ±200ppm/°C - - - - - RS -55°C +155°C
RS Stock No. 804-6449
Brand :RS PRO
THB0.092
Each (On a Reel of 5000)
Units
1kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-6461
Brand :RS PRO
THB0.092
Each (On a Reel of 5000)
Units
2.2kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-6379
Brand :RS PRO
THB0.085
Each (On a Reel of 5000)
Units
110Ω 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-6360
Brand :RS PRO
THB0.092
Each (On a Reel of 5000)
Units
100Ω 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-7127
Brand :RS PRO
THB0.03
Each (On a Reel of 10000)
Units
510Ω 0402 (1005M) Thick Film ±1% 0.063W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-8823
Brand :RS PRO
THB0.055
Each (On a Reel of 5000)
Units
560Ω 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 713-6939
Brand :RS PRO
THB0.183
Each (On a Reel of 5000)
Units
1kΩ 0805 (2012M) Thick Film ±5% 0.125W ±200ppm/°C - - - - - RS -55°C +155°C
RS Stock No. 804-6603
Brand :RS PRO
THB0.085
Each (On a Reel of 5000)
Units
120kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 804-6607
Brand :RS PRO
THB0.092
Each (On a Reel of 5000)
Units
100kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - - -55°C +155°C
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