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Surface Mount Resistors

Surface mount (SMD) resistors are a type of resistor designed to be mounted directly onto the surface of printed circuit boards (PCBs). The primary function of a surface mount resistor is to provide a specific amount of resistance to electrical current in a circuit. The provided resistance is critical for controlling the flow of electrical current, protecting sensitive components, and ensuring the stable operation of electronic circuits. SMD resistors come in various shapes and sizes, typically rectangular or cylindrical, with their resistance value marked on the component. With their remarkable features and potential benefits, they are an integral component of a variety of modern consumer electronics and other applications in various settings.

Benefits of Surface Mount Resistors:

Surface mount resistors offer several advantages over through-hole resistors, including:

  • Space-saving: SMD resistors take up less space on the PCB, allowing higher component density and smaller device sizes.
  • Automated assembly: They suit automated assembly processes, such as pick-and-place machines, which can increase manufacturing efficiency.
  • Lower parasitic effects: SMD resistors have shorter lead lengths compared to through-hole resistors, reducing parasitic effects like inductance and capacitance.
  • Better high-frequency performance: Due to their lower parasitic effects, SMD resistors are often preferred in high-frequency applications.

Popular Types of Surface Mount Resistors:

SMD resistors come in various types, each suited for different needs based on stability, resistance range, tolerance, power rating, and frequency characteristics. Some of the most common SMD resistor types include: 

  • Thick Film Resistors
  • Thin Film Resistors
  • Resistor Networks
  • Current Sense Resistors
  • Metal Foil Resistors
  • Metal Oxide Resistors
  • Metal Film Resistors
  • High-Frequency Resistors
  • High Voltage Resistors
  • Temperature Compensated Resistors.

Typical Applications of Surface Mount Resistors:

Surface mount resistors are integral components of modern electronics and are used across a myriad of applications due to their compact size and robust reliability. Some of the typical applications include:

  • Mobile Phones
  • Telecommunications
  • Computers
  • Aerospace and Defense
  • Industrial Machinery
  • Automotive Systems
  • Medical Devices
  • Power Supplies.

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ERA2AEB203X, Panasonic
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AC0603FR-0710RL, Yageo

AC0603FR-0710RL, Yageo

RES SMD 10 OHM 1% 1/10W 0603
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SR1206JR-0751RL, Yageo

SR1206JR-0751RL, Yageo

RES SMD 51 OHM 5% 1/4W 1206
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RL1218FK-070R22L, Yageo

RL1218FK-070R22L, Yageo

RES 0.22 OHM 1W 1812 WIDE
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ERJ1GNJ224C, Panasonic

ERJ1GNJ224C, Panasonic

Features Small size and lightweight High reliability Metal glaze thick film resistive element and three layers of electrodes Compatible with placement machines Taping packaging available Suitable for both refl ow and fl ow sol der ing
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AC1206FR-071K2L, Yageo

AC1206FR-071K2L, Yageo

RES SMD 1.2K OHM 1% 1/4W 1206
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RC0603FR-0782KL, Yageo

RC0603FR-0782KL, Yageo

RES SMD 82K OHM 1% 1/10W 0603
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RC0402FR-0760K4L, Yageo

RC0402FR-0760K4L, Yageo

RES SMD 60.4K OHM 1% 1/16W 0402
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RC2512JK-070RL, Yageo

RC2512JK-070RL, Yageo

RES SMD 0 OHM JUMPER 1W 2512
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RT0603BRE07150RL, Yageo

RT0603BRE07150RL, Yageo

RES SMD 150 OHM 0.1% 1/10W 0603
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RT0603FRE0724K9L, Yageo

RT0603FRE0724K9L, Yageo

RES SMD 24.9K OHM 1% 1/10W 0603
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RC1206FR-07240RL, Yageo

RC1206FR-07240RL, Yageo

RES SMD 240 OHM 1% 1/4W 1206
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RT0603BRD0739KL, Yageo

RT0603BRD0739KL, Yageo

RES SMD 39K OHM 0.1% 1/10W 0603
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