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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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717-2339, RS Pro

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0805 Format Resistor, RS Series - ( 250Ω → 2.49kΩ ) Thick film chip resistor with a highly reliable multilayer electrode construction and compatible with all soldering process. Resistor Applications include:- Telecommunication Equipments Radio and Tape Recorders, TV Tuners Video Cameras, Watches, Pocket Calculators Automotive Industry Computers, Instruments Applications include : Telecommunication Equipment Radio and Tape Recorders, TV Tuners Video Cameras, Watches, Pocket Calculators Automotive Industry Computers, Instruments
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256-7843, RS PRO

256-7843, RS PRO

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169-0350, RS Pro

169-0350, RS Pro

Thin Film Technology ±1% Tolerance TCR 50 PPM/°C Lead free
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169-1774, RS Pro

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Thin Film Technology ±1% Tolerance TCR 50 PPM/°C Lead free
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256-7475, RS PRO

256-7475, RS PRO

The RS Pro High voltage thin flim flat chip resistor is tight tolerance of 0.1% operating up to 1000V, superior moisture, automotive grade. Applications for industrial and automotive inverters, batter management, testing/measurement, automotive equipment controller. High operating voltage Umax. up to 1000 V Low voltage coefficient <1 ppm/V Superior moisture resistivity AEC-Q200 Compliance Test proven immunity to humidity, moisture, and sulfur
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256-7489, RS PRO

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256-7507, RS PRO

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The RS Pro High voltage thin flim flat chip resistor is tight tolerance of 0.1% operating up to 1000V, superior moisture, automotive grade. Applications for industrial and automotive inverters, batter management, testing/measurement, automotive equipment controller. High operating voltage Umax. up to 1000 V Low voltage coefficient <1 ppm/V Superior moisture resistivity AEC-Q200 Compliance Test proven immunity to humidity, moisture, and sulfur
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256-7736, RS PRO

256-7736, RS PRO

RS PRO High Voltage Thick Film Resistor - RSPHVR Series Features and Benefits: This range of RS PRO Resistors boast a highly reliable multilayer electrode construction that ensures durability and longevity, even in demanding applications, thanks to the advanced construction technique that enhances the resistor’s stability and operational lifespan With superior reliability, these resistors optimise the performance of electronic equipment, offering high performance and efficiency, as well as consistency under high voltages to ensure stability and accuracy Because of the reliability and design of these resistors, they offer reduced maintenance needs and enhanced operational continuity, which means less downtime and interference when for maintenance cycles Thanks to the smaller design of this RS PRO resistor, they actually contribute to a reduction in size of the final equipment that it’s being used in, allowing for more streamlined and space-efficient devices that are much more suitable for more modern, compact applications Ideal for various applications, these resistors find their place in critical systems such as inverters for outdoor equipment and converters for high pulse equipment Applications: Why RS PRO?
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256-7771, RS PRO

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256-7831, RS PRO

256-7831, RS PRO

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243-0612, RS PRO

243-0612, RS PRO

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243-0622, RS PRO

243-0622, RS PRO

RS PRO 0603 (1608M) Thin Film Current Sensing Chip Resistors The RS PRO thin film surface mount (SMD) resistor controls the electrical current between a power source and an appliance, so the two can function together without burnout. Featuring a thin film construction with a high purity alumina substrate for a higher level of precision than thick film resistors and superior levels of power dissipation. The compact, lightweight design makes this SMD resistor ideal for use in small electronic devices, such as mobile phones. Primarily used in the telecommunication and automotive industries the RS PRO 0603 resistors are also ideal for use in a wide range of other applications including: Power Management Applications Switching Power Supply Over Current Protection in Audio Applications Voltage Regulation Module (VRM) DC-DC Converters, Battery Packs, Chargers and Adaptors Automotive Engine Control Disk Drivers Portable Devices (PDA, Phones) High purity alumina substrate for high power dissipation Operating temperature range of -55 → +155°C Temperature coefficient range of ±50 → ±100 ppm/°C Resistance range of 0.2 → 1Ω Power rating of 0.06 W Thin film technology Tolerance of 0.1% Solder termination 243-0622
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