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.


...
顯示內容 隱藏內容

篩選條件

正在檢視 1 - 20,共 123 項產品
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庫存編號 124-9336
製造零件編號EBWA-MR0010FE
HK$18.104
個 (以毎袋:5)
單位
1 mΩ 0402 (1005M) Manganin Alloy ±1% 4W ±60ppm/°C - - - - - EBW -55°C +170°C
RS庫存編號 126-0363
製造零件編號FC4L64R002GER
HK$14.99
個 (以毎袋:5)
單位
2 mΩ 2512 (6432M) Metal Foil ±2% 2W ±100ppm/°C - - - - - FC4L -55°C +155°C
RS庫存編號 124-9337
製造零件編號EBWA-NR0020FE
HK$15.932
個 (以毎袋:5)
單位
2 mΩ 0402 (1005M) NiCr Alloy ±1% 4W ±100ppm/°C - - - - - EBW -55°C +170°C
RS庫存編號 126-0390
製造零件編號LVK25R001FER
HK$16.004
個 (以毎袋:5)
單位
1 mΩ 1224 (3250M) - ±1% 2W ±300ppm/°C - - - - - LVK25 -40°C +125°C
RS庫存編號 126-0375
製造零件編號FCSL110R025FER
HK$19.578
個 (以毎袋:5)
單位
25 mΩ 4320 Metal Foil ±1% 5W ±50ppm/°C - - - - - FCSL -55°C +155°C
RS庫存編號 126-0346
製造零件編號FC4L110R002GER
HK$21.46
個 (以毎袋:5)
單位
2 mΩ 0402 (1005M) Metal Foil ±2% 5W ±50ppm/°C - - - - - FC4L -55°C +155°C
RS庫存編號 136-3308
製造零件編號AS08J10R0ET
HK$814.72
毎卷:5000 個
Reel(s)
10 Ω 0805 (2012M) Thick Film ±5% 0.33W ±400ppm/°C - - - - - AS08 -55°C +155
RS庫存編號 891-5076
製造零件編號TDH35P100RJE
HK$64.976
/個 (每包:100個)
單位
100 Ω DPAK Metal Film ±5% 35W ±50ppm/°C - - - - - TDH -55°C +175°C
RS庫存編號 891-5086
製造零件編號TDH35P3R00JE
HK$59.186
/個 (每包:100個)
單位
3 Ω DPAK Metal Film ±5% 35W ±100ppm/°C - - - - - TDH -55°C +175°C
RS庫存編號 136-4756
製造零件編號AS12J1001ET
HK$0.618
Each (On a Tape of 100)
單位
1 kΩ 1206 (3216M) Thick Film ±5% 0.5W ±100ppm/°C - - - - - AS12 -55°C +155
RS庫存編號 136-3312
製造零件編號AS08J1003ET
HK$814.72
毎卷:5000 個
Reel(s)
100 kΩ 0805 (2012M) Thick Film ±5% 0.33W ±100ppm/°C - - - - - AS08 -55°C +155
RS庫存編號 124-9340
製造零件編號EBWB-MR0002FE
HK$19.90
個 (以毎袋:5)
單位
200 µΩ 0603 (1608M) Manganin Alloy ±1% 7W ±100ppm/°C - - - - - EBW -55°C +170°C
RS庫存編號 126-0347
製造零件編號FC4L110R003FER
HK$21.46
個 (以毎袋:5)
單位
3 mΩ 4320 Metal Foil ±1% 5W ±50ppm/°C - - - - - FC4L -55°C +155°C
RS庫存編號 126-0359
製造零件編號FC4L32R010FER
HK$7.906
個 (以毎袋:10)
單位
10 mΩ 1206 (3216M) Metal Foil ±1% 1W ±50ppm/°C - - - - - FC4L -55°C +155°C
RS庫存編號 172-2209
製造零件編號EBWB-MR0005FE
HK$16.179
個 (在毎卷:2000)
單位
500 µΩ - Manganin Alloy ±1% 6W ±100ppm/°C - - - - - EBW -55°C +170°C
RS庫存編號 126-0392
製造零件編號LVK25R003FER
HK$16.004
個 (以毎袋:5)
單位
3 mΩ 1224 (3250M) - ±1% 2W ±200ppm/°C - - - - - LVK25 -40°C +125°C
RS庫存編號 124-9338
製造零件編號EBWA-NR0030FE
HK$15.932
個 (以毎袋:5)
單位
3 mΩ 0402 (1005M) NiCr Alloy ±1% 3W ±100ppm/°C - - - - - EBW -55°C +170°C
RS庫存編號 136-3322
製造零件編號AS25J1R00ET
HK$4,181.05
毎卷:4000 個
Reel(s)
1 Ω 2512 (6432M) Thick Film ±5% 1.5W ±400ppm/°C - - - - - AS25 -55°C +155
RS庫存編號 136-3304
製造零件編號SM108035005FE
HK$75.44
單位
50 MΩ - Thick Film ±1% 2.5W ±25ppm/°C - - - - - Slim-Mox -55°C +110°C
RS庫存編號 891-5092
製造零件編號650FPR005E
HK$70.28
單位
5 mΩ - Manganin Alloy ±1% 5W ±100ppm/°C - - - - - 650 -55°C +275°C