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 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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RS庫存編號 807-8105
製造零件編號ERJ-14YJ331U
BrandPanasonic
TWD1.80
/個 (每包:100個)
單位
330 Ω 1210 (3225M) Thick Film ±5% 0.5W ±200ppm/°C AEC-Q200 - - - - ERJ -55°C +155°C
RS庫存編號 181-9032
製造零件編號CRCW04020000Z0EDHP
BrandVishay
TWD0.50
個 (在毎卷:10000)
單位
0 Ω 0402 (1005M) Thick Film - 0.2W - AEC-Q200 - - - - CRCW-HP e3 -55°C +155°C
RS庫存編號 810-1726
製造零件編號ERJ6RBD1602V
BrandPanasonic
TWD1.40
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16 kΩ 0805 (2012M) Thick Film ±0.5% 0.1W ±50ppm/°C AEC-Q200 - - - - ERJ -55°C +125°C
RS庫存編號 169-0897
製造零件編號ERJ6RBD1602V
BrandPanasonic
TWD0.70
個 (在毎卷:5000)
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16 kΩ 0805 (2012M) Thick Film ±0.5% 0.1W ±50ppm/°C AEC-Q200 - - - - ERJ -55°C +125°C
RS庫存編號 168-8201
製造零件編號MMA02040C2709FB300
BrandVishay
TWD1.20
個 (在毎卷:3000)
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27 Ω Melf 0204 Thin Film ±1% 0.25W ±50ppm/K AEC-Q200 - - - - MMA -55°C +125°C
RS庫存編號 678-7337
製造零件編號MMA02040C2709FB300
BrandVishay
TWD4.00
/個 (每包:25個)
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27 Ω Melf 0204 Thin Film ±1% 0.25W ±50ppm/°C - - - - - MMA0204 -55°C +125°C
RS庫存編號 180-3783
製造零件編號MMA02040C2709FB300
BrandVishay
TWD1.80
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27 Ω Melf 0204 Thin Film ±1% 0.25W ±50ppm/K AEC-Q200 - - - - MMA -55°C +125°C
RS庫存編號 819-9117
製造零件編號CRF0805-FX-R005ELF
BrandBourns
TWD6.80
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5 mΩ 0805 (2012M) Metal Alloy ±1% 0.5W ±100ppm/°C - - - - - CRF -55°C +170°C
RS庫存編號 213-2008
製造零件編號CRG0603F10R
TWD0.80
/個 (每包:50個)
單位
10 Ω 0603 (1608M) Thick Film ±1% 0.1W ±200ppm/°C - - - - - CRG -55°C +125°C
RS庫存編號 181-9408
製造零件編號CRCW0402120RFKEDHP
BrandVishay
TWD0.90
個 (在毎卷:1000)
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120 Ω 0402 (1005M) Thick Film ±1% - - - - - - - CRCW -55°C +155°C
RS庫存編號 167-4713
製造零件編號CR1206-FX-10R0ELF
BrandBourns
TWD0.30
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10 Ω 1206 (3216M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - CR1206 -55°C +155°C
RS庫存編號 123-9301
製造零件編號CPF0603B21RE1
TWD5.50
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21 Ω 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - CPF -55°C +155°C
RS庫存編號 134-5429
製造零件編號CRG0603F10R
TWD0.10
個 (在毎卷:5000)
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10 Ω 0603 (1608M) Thick Film ±1% 0.1W ±200ppm/°C - - - - - CRG -55°C +125°C
RS庫存編號 122-9085
製造零件編號CPF0603B21RE1
TWD9.00
個 (以毎袋:20)
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21 Ω 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - CPF -55°C +155°C
RS庫存編號 740-9085
製造零件編號CR1206-FX-10R0ELF
BrandBourns
TWD0.70
/個 (每包:50個)
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10 Ω 1206 (3216M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - CR1206 -55°C +155°C
RS庫存編號 807-2270
製造零件編號ERJ2RKD16R0X
BrandPanasonic
TWD0.90
個 (以毎袋:100)
單位
16 Ω 0402 (1005M) Thick Film ±0.5% 0.063W ±100ppm/°C AEC-Q200 - - - - ERJ -55°C +125°C
RS庫存編號 852-6617
製造零件編號CH0402-50RJF
BrandVishay
TWD109.00
單位
50 Ω 0402 (1005M) Thin Film ±5% 0.05W ±100ppm/°C - - - - - CH -55°C +155°C
RS庫存編號 679-0443
製造零件編號CRCW0603499KFKEA
BrandVishay
TWD0.70
/個 (每包:50個)
單位
499 kΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - CRCW -55°C +155°C
RS庫存編號 647-6166
製造零件編號SMW310RJT
TWD21.20
/個 (每包:5個)
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10 Ω - Wire Wound ±5% 3W ±200ppm/°C - - - - - SM -55°C +200°C
RS庫存編號 169-0839
製造零件編號ERJ2RKD16R0X
BrandPanasonic
TWD0.50
個 (在毎卷:10000)
單位
16 Ω 0402 (1005M) Thick Film ±0.5% 0.063W ±100ppm/°C AEC-Q200 - - - - ERJ -55°C +125°C