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 161-4938
製造零件編號35204R7JT
TWD2.00
個 (在毎卷:4000)
單位
4.7 Ω 2512 (6432M) Thick Film ±5% 1W ±350ppm/°C - - - - - 3520 -55°C +125°C
RS庫存編號 168-8421
製造零件編號CRCW0402390KFKED
BrandVishay
TWD0.30
個 (在毎卷:10000)
單位
390 kΩ 0402 (1005M) Thick Film ±1% 0.063W ±100ppm/°C - - - - - CRCW -55°C +155°C
RS庫存編號 901-3667
製造零件編號MCR03EZPFX1004
BrandROHM
TWD1.90
個 (以毎袋:100)
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1 MΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/°C - - - - - MCR -55°C +155°C
RS庫存編號 862-6701
製造零件編號ERJPA3F1001V
BrandPanasonic
TWD1.30
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1 kΩ 0603 (1608M) Thick Film ±1% 0.25W ±100ppm/°C AEC-Q200 - - - - ERJPA3 -55°C +155°C
RS庫存編號 810-1895
製造零件編號ERJ6RBD7501V
BrandPanasonic
TWD1.50
個 (以毎袋:100)
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7.5 kΩ 0805 (2012M) Thick Film ±0.5% 0.1W ±50ppm/°C AEC-Q200 - - - - ERJ -55°C +125°C
RS庫存編號 810-1851
製造零件編號ERJ6RBD5101V
BrandPanasonic
TWD1.50
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5.1 kΩ 0805 (2012M) Thick Film ±0.5% 0.1W ±50ppm/°C AEC-Q200 - - - - ERJ -55°C +125°C
RS庫存編號 169-0931
製造零件編號ERJ6RBD5101V
BrandPanasonic
TWD0.70
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5.1 kΩ 0805 (2012M) Thick Film ±0.5% 0.1W ±50ppm/°C AEC-Q200 - - - - ERJ -55°C +125°C
RS庫存編號 103-8796
製造零件編號ERJ2RHD1002X
BrandPanasonic
TWD0.70
個 (在毎卷:10000)
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10 kΩ 0603 (1608M) Thick Film ±0.5% 0.063W ±50ppm/°C - - - - - ERJ -55°C +125°C
RS庫存編號 223-2417
製造零件編號CRG1206F15K
TWD1.70
/個 (每包:50個)
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15 kΩ 1206 (3216M) Thick Film ±1% 0.25W ±100ppm/°C - - - - - CRG -55°C +125°C
RS庫存編號 922-6002
製造零件編號ERJ8BQF3R9V
BrandPanasonic
TWD1.90
個 (在毎卷:5000)
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3.9 Ω 1206 (3216M) Thick Film ±1% 0.5W ±200ppm/°C - - - - - ERJ8BQ -55°C +125°C
RS庫存編號 566-294
製造零件編號ERA2AEB332X
BrandPanasonic
TWD19.60
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3.3 kΩ 0402 (1005M) Thin Film ±0.1% 0.063W ±25ppm/°C AEC-Q200 - - - - ERA -55°C +155°C
RS庫存編號 167-4784
製造零件編號CR0402-J/-000GLF
BrandBourns
TWD0.10
個 (在毎卷:10000)
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0 Ω 0402 (1005M) Thick Film ±5% 0.063W -250 → +500ppm/°C - - - - - CR0402 -55°C +125°C
RS庫存編號 123-9172
製造零件編號CPF0603B24R9E1
TWD5.80
個 (在毎卷:1000)
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24.9 Ω 0603 (1608M) Thin Film ±0.1% 0.063W ±25ppm/°C - - - - - CPF -55°C +155°C
RS庫存編號 819-8764
製造零件編號CRHV2512AF100MFKET
BrandVishay
TWD140.00
單位
100 MΩ 2512 (6432M) Thick Film ±1% 1W ±100ppm/°C - - - - - CRHV -55°C +150°C
RS庫存編號 812-1837
製造零件編號CRCW120620R0FKEAHP
BrandVishay
TWD11.50
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20 Ω 1206 (3216M) Thick Film ±1% 0.5W ±100ppm/K - - - - - CRCW -55°C +155°C
RS庫存編號 182-3639
製造零件編號CRCW0603140KFKEA
BrandVishay
TWD0.20
個 (在毎卷:1000)
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140 kΩ 0603 (1608M) Thick Film ±1% 0.1W ±100ppm/K AEC-Q200 - - - - CRCW -55°C +155°C
RS庫存編號 134-5495
製造零件編號CRG0805F100K
TWD0.30
個 (在毎卷:5000)
單位
100 kΩ 0805 (2012M) Thick Film ±1% 0.125W ±100ppm/°C - - - - - CRG -55°C +125°C
RS庫存編號 740-8798
製造零件編號CR0603-FX-1000ELF
BrandBourns
TWD0.40
/個 (每包:50個)
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100 Ω 0603 Thick Film ±1% 0.1W ±100ppm/°C - - - - - CR0603 -55°C +155°C
RS庫存編號 566-507
製造零件編號ERA6AEB123V
BrandPanasonic
TWD9.60
/個 (每包:5個)
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12 kΩ 0805 (2012M) Thin Film ±0.1% 0.125W ±25ppm/°C AEC-Q200 - - - - ERA -55°C +155°C
RS庫存編號 294-5062
製造零件編號RH73H2A100MKTN
TWD25.80
/個 (每包:5個)
單位
100 MΩ 0805 (2012M) Thick Film ±10% 0.125W ±100ppm/°C - - - - - RH73 -55°C +125°C