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 - 20 of 1605 products
Results per page
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. 631-4478
Mfr. Part No.RK73H2ATTD1200F
BrandKOA
$0.183
Each (In a Pack of 50)
units
120 Ω 0805 (2012M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 631-5358
Mfr. Part No.RK73H2ATTD5603F
BrandKOA
$0.047
Each (In a Pack of 50)
units
560 kΩ 0805 (2012M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 631-4939
Mfr. Part No.RK73H2ATTD1002F
BrandKOA
$0.222
Each (In a Pack of 50)
units
10 kΩ 0805 (2012M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 631-7281
Mfr. Part No.RK73H1JTTD5104F
BrandKOA
$0.029
Each (In a Pack of 50)
units
5.1 MΩ 0603 (1608M) Thick Film ±1% 0.1W ±200ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 631-4894
Mfr. Part No.RK73H2ATTD6801F
BrandKOA
$0.113
Each (In a Pack of 50)
units
6.8 kΩ 0805 (2012M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 631-5011
Mfr. Part No.RK73H2ATTD2202F
BrandKOA
$0.047
Each (In a Pack of 50)
units
22 kΩ 0805 (2012M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 123-4477
Mfr. Part No.RK73HW3ATTE51R0F
BrandKOA
$0.24
Each (In a Bag of 50)
units
51 Ω 2512 (6432M) Thick Film ±1% 1W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 631-5667
Mfr. Part No.RK73Z1JTTD
BrandKOA
$0.03
Each (In a Pack of 50)
units
0 Ω 0603 (1608M) Thick Film ±0% - - AEC-Q200 - - - - RK73H -55°C +155°C
RS Stock No. 631-4692
Mfr. Part No.RK73H2ATTD1001F
BrandKOA
$0.043
Each (In a Pack of 50)
units
1 kΩ 0805 (2012M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 123-4497
Mfr. Part No.RK73HW3ATTE5101F
BrandKOA
$0.274
Each (In a Bag of 50)
units
5.1 kΩ 2512 (6432M) Thick Film ±1% 1W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 123-4500
Mfr. Part No.RK73HW3ATTE1502F
BrandKOA
$0.24
Each (In a Bag of 50)
units
15 kΩ 2512 (6432M) Thick Film ±1% 1W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 631-7360
Mfr. Part No.RK73Z1ETTP
BrandKOA
$0.018
Each (In a Pack of 100)
units
0 Ω 0402 (1005M) Thick Film ±0% - - - - - - - RK73H -55°C +155°C
RS Stock No. 631-5055
Mfr. Part No.RK73H2ATTD3302F
BrandKOA
$0.047
Each (In a Pack of 50)
units
33 kΩ 0805 (2012M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 123-4484
Mfr. Part No.RK73HW3ATTE3300F
BrandKOA
$0.257
Each (In a Bag of 50)
units
330 Ω 2512 (6432M) Thick Film ±1% 1W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 431-726
Mfr. Part No.RK73B1JTTD823J
BrandKOA
$0.008
Each (In a Pack of 100)
units
82 kΩ 0603 (1608M) Thick Film ±5% 0.1W ±200ppm/°C - - - - - RK73B -55°C +155°C
RS Stock No. 631-6727
Mfr. Part No.RK73H1JTTD2402F
BrandKOA
$0.032
Each (In a Pack of 50)
units
24 kΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 123-4327
Mfr. Part No.RK73H1JTTD4990F
BrandKOA
$0.032
Each (In a Bag of 50)
units
499 Ω 0603 (1608M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 631-7736
Mfr. Part No.RK73H1ETTP33R0F
BrandKOA
$0.015
Each (In a Pack of 100)
units
33 Ω 0402 (1005M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 123-4476
Mfr. Part No.RK73HW3ATTE49R9F
BrandKOA
$0.24
Each (In a Bag of 50)
units
49.9 Ω 2512 (6432M) Thick Film ±1% 1W ±100ppm/°C - - - - - RK73H -55°C +155°C
RS Stock No. 631-4563
Mfr. Part No.RK73H2ATTD3000F
BrandKOA
$0.047
Each (In a Pack of 50)
units
300 Ω 0805 (2012M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - RK73H -55°C +155°C