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 (PCBs).

Some common package sizes are 0201,0402,0603,0805,1206,1210,2020,2512

SMD - Some common package sizes are 0201,0402,0603,0805,1206,1210,2020,2512

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 filmThick Film Resistors are used for general use due to a lower price pointMoulded Wirewound Resistors offer higher powerFoil Resistors for ultra-high precision and really low-Temperature coefficient of resistanceShunts (current sense) Low ohmic values for where current measurement is criticalMelf (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. 161-887
Mfr. Part No.RG2012N-153-W-T1
BrandSusumu Co
£0.569
Each (In a Pack of 20)
Units
15kΩ 0805 (2012M) Thin Film ±0.05% 0.125W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 161-900
Mfr. Part No.RG2012N-183-W-T1
BrandSusumu Co
£0.569
Each (In a Pack of 20)
Units
18kΩ 0805 (2012M) Thin Film ±0.05% 0.125W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 161-916
Mfr. Part No.RG2012N-203-W-T1
BrandSusumu Co
£0.569
Each (In a Pack of 20)
Units
20kΩ 0805 (2012M) Thin Film ±0.05% 0.125W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 160-698
Mfr. Part No.RG1608N-102-W-T1
BrandSusumu Co
£0.542
Each (In a Pack of 20)
Units
1kΩ 0603 (1608M) Thin Film ±0.05% 0.1W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 134-6389
Mfr. Part No.KRL3216E-C-R005-F
BrandSusumu Co
£0.316
Each (In a Bag of 20)
Units
5mΩ 1206 (3216M) Metal Foil ±1% 1.5W ±50ppm/°C - - - - - KRL -55°C +175°C
RS Stock No. 160-654
Mfr. Part No.RG1608N-681-W-T1
BrandSusumu Co
£0.471
Each (In a Pack of 20)
Units
680Ω 0603 (1608M) Thin Film ±0.05% 0.1W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 161-922
Mfr. Part No.RG2012N-223-W-T1
BrandSusumu Co
£0.569
Each (In a Pack of 20)
Units
22kΩ 0805 (2012M) Thin Film ±0.05% 0.125W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 638-0908
Mfr. Part No.RG2012P-334-B-T1
BrandSusumu Co
£0.226
Each (In a Pack of 50)
Units
330kΩ 0805 (2012M) Metal Film ±0.1% 0.125W ±25ppm/°C - - - - - - -55°C +155°C
RS Stock No. 160-856
Mfr. Part No.RG1608N-472-W-T1
BrandSusumu Co
£0.471
Each (In a Pack of 20)
Units
4.7kΩ 0603 (1608M) Thin Film ±0.05% 0.1W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 134-6392
Mfr. Part No.RG1005P-512-B
BrandSusumu Co
£0.105
Each (In a Bag of 50)
Units
5.1kΩ 0402 (1005M) Thin Film ±0.1% 0.125W ±25ppm/°C - - - - - RG -55°C +155°C
RS Stock No. 638-1147
Mfr. Part No.RL7520WRR068F
BrandSusumu Co
£0.183
Each (In a Pack of 10)
Units
68mΩ 3008 Thin Film ±1% 2W 0 → +100ppm/°C - - - - - - - -
RS Stock No. 162-149
Mfr. Part No.RG2012N-184-W-T1
BrandSusumu Co
£0.569
Each (In a Pack of 20)
Units
180kΩ 0805 (2012M) Thin Film ±0.05% 0.125W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 134-6291
Mfr. Part No.KRL2012E-C-R470-F
BrandSusumu Co
£0.124
Each (On a Reel of 5000)
Units
470mΩ 0805 (2012M) Metal Foil ±1% 1W ±50ppm/°C - - - - - KRL -55°C +175°C
RS Stock No. 638-0958
Mfr. Part No.RG2012P-514-B-T1
BrandSusumu Co
£0.241
Each (In a Pack of 50)
Units
510kΩ 0805 (2012M) Metal Film ±0.1% 0.125W ±25ppm/°C - - - - - - -55°C +155°C
RS Stock No. 134-6337
Mfr. Part No.KRL2012E-C-R220-F
BrandSusumu Co
£0.211
Each (In a Bag of 20)
Units
220mΩ 0805 (2012M) Metal Foil ±1% 1W ±50ppm/°C - - - - - KRL -55°C +175°C
RS Stock No. 638-0380
Mfr. Part No.RG2012P-242-B-T1
BrandSusumu Co
£0.241
Each (In a Pack of 50)
Units
2.4kΩ 0805 (2012M) Metal Film ±0.1% 0.125W ±25ppm/°C - - - - - - -55°C +155°C
RS Stock No. 134-6394
Mfr. Part No.KRL2012E-C-R033-F
BrandSusumu Co
£0.211
Each (In a Bag of 20)
Units
33mΩ 0603 (1608M) Metal Foil ±1% 1W ±50ppm/°C - - - - - KRL -55°C +175°C
RS Stock No. 161-629
Mfr. Part No.RG2012N-122-W-T1
BrandSusumu Co
£0.569
Each (In a Pack of 20)
Units
1.2kΩ 0805 (2012M) Thin Film ±0.05% 0.125W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 161-247
Mfr. Part No.RG1608N-204-W-T1
BrandSusumu Co
£0.471
Each (In a Pack of 20)
Units
200kΩ 0603 (1608M) Thin Film ±0.05% 0.1W ±10ppm/°C - - - - - - -55°C +155°C
RS Stock No. 162-492
Mfr. Part No.RL3720WT-R056-F
BrandSusumu Co
£0.329
Each (In a Pack of 50)
Units
56mΩ 0815 (2037M) Thin Film ±1% 1W 0 → +350ppm/°C - - - - - - - -