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. 164-5441
Mfr. Part No.CRGH0805J22K
MYR169.54
1 Reel of 5000
Reel(s)
22 kΩ 0805 (2012M) Thick Film ±5% 0.33W ±200ppm/°C - - - - - CRGH -55°C +155°C
New
RS Stock No. 186-5752
Mfr. Part No.35022R0FT
MYR1.432
Each (On a Reel of 2000)
units
2 Ω 2010 (5025M) Thick Film ±1% 2W ±200ppm/°C - - - - - 3502 -55°C +155°C
RS Stock No. 180-4464
Mfr. Part No.MMB02070C8204FB200
BrandVishay
MYR0.527
Each (On a Reel of 500)
units
8.2 MΩ Melf 0207 Thin Film ±1% 0.4W ±50ppm/K AEC-Q200 - - - - MMB -55°C +125°C
RS Stock No. 922-5986
Mfr. Part No.ERJ8BQF1R6V
BrandPanasonic
MYR2,396.80
1 Reel of 5000
Reel(s)
1.6 Ω 1206 (3216M) Thick Film ±1% 0.5W ±200ppm/°C - - - - - ERJ8BQ -55°C +125°C
RS Stock No. 810-2485
Mfr. Part No.ERJ3RED62R0V
BrandPanasonic
MYR0.094
Each (In a Bag of 100)
units
62 Ω 0603 (1608M) Thick Film ±0.5% 0.1W ±100ppm/°C AEC-Q200 - - - - ERJ -55°C +125°C
RS Stock No. 804-9081
BrandRS PRO
MYR33.32
1 Reel of 5000
Reel(s)
820 kΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - - -55°C +155°C
RS Stock No. 223-0449
Mfr. Part No.CRG0805F1K5
MYR0.219
Each (In a Pack of 50)
units
1.5 kΩ 0805 Thick Film ±1% 0.125W ±100ppm/°C - 2 x 0.5mm 2mm 1.25mm 0.5mm CRG -55°C +125°C
New
RS Stock No. 187-0259
Mfr. Part No.3560270KJT
MYR3.404
Each (On a Reel of 1000)
units
270 kΩ 4257 (11070M Thick Film ±5% 6W ±100ppm/°C - - - - - 3560 -55°C +155°C
RS Stock No. 182-9418
Mfr. Part No.ERA3ARB163V
BrandPanasonic
MYR1.914
Each (On a Reel of 250)
units
16 kΩ 0603 (1608M) Thin Film ±0.1% 0.1W ±10ppm/°C AEC-Q200 - - - - E24 -55°C +155°C
RS Stock No. 134-6258
Mfr. Part No.RG1005P-222-B
BrandSusumu Co
MYR0.403
Each (On a Reel of 5000)
units
2.2 kΩ 0402 (1005M) Thin Film ±0.1% 0.125W ±25ppm/°C - - - - - RG -55°C +155°C
RS Stock No. 179-3256
Mfr. Part No.ERA3APB102V
BrandPanasonic
MYR1.249
Each (On a Reel of 5000)
units
1 kΩ 0603 (1608M) Thin Film ±0.1% 0.1W ±15ppm/°C AEC-Q200 - - - - ERA -55°C +155°C
RS Stock No. 179-0357
Mfr. Part No.S41X083470JP
BrandCTS
MYR0.112
Each (On a Reel of 10000)
units
47 Ω 0402 (1005M) - ±5% 0.031W ±200ppm/°C - - - - - S4X -55°C +125°C
RS Stock No. 770-8571
Mfr. Part No.ERJP6WF1102V
BrandPanasonic
MYR0.656
Each (In a Pack of 100)
units
11 kΩ 0805 (2012M) Thick Film ±1% 0.5W ±200ppm/°C AEC-Q200 - - - - ERJP6W -55°C +155°C
RS Stock No. 169-1491
Mfr. Part No.ERA3ARB163V
BrandPanasonic
MYR5,885.75
1 Reel of 5000
Reel(s)
16 kΩ 0603 (1608M) Thin Film ±0.1% 0.1W ±10ppm/°C AEC-Q200 - - - - ERA -55°C +155°C
RS Stock No. 716-7703
BrandRS PRO
MYR543.98
1 Reel of 15000
Reel(s)
2.2 kΩ 0201 (0603M) Thick Film ±1% 0.05W ±200ppm/°C - - - - - RS -55°C +125°C
RS Stock No. 122-129
Mfr. Part No.RMC1/16K511FTP
BrandKamaya
MYR0.076
Each (In a Pack of 100)
units
510 Ω 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - RMC -55°C +155°C
RS Stock No. 182-4641
Mfr. Part No.SMA-A0102BTNL15K
MYR5.73
Each (On a Reel of 250)
units
15 kΩ Melf 0102 Thin Film ±0.1% 0.3W ±15ppm/°C AEC-Q200 - - - - SMA-A -55°C +155°C
RS Stock No. 176-5085
Mfr. Part No.CRGP1206F27K
MYR0.207
Each (On a Reel of 5000)
units
27 kΩ 1206 (3216M) Thick Film ±1% 0.5W ±100ppm/°C - - - - - CRGP -55°C +155°C
RS Stock No. 865-4208
Mfr. Part No.ERJU06F1003V
BrandPanasonic
MYR0.132
Each (In a Bag of 100)
units
100 kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - ERJ -55°C +155°C
RS Stock No. 631-8133
Mfr. Part No.RK73H1ETTP1501F
BrandKOA
MYR0.081
Each (In a Pack of 100)
units
1.5 kΩ 0402 (1005M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - RK73H -55°C +155°C
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