Passive Components

A passive component is a module that does not require energy to operate, except for the available alternating current (AC) circuit that it is connected to. A passive module is not capable of power gain and is not a source of energy. A typical passive component would include resistors, inductors, capacitors and transformers, which together are required to build any electrical or electronic circuit.

Passive devices can be used individually or connected together within a circuit, either in a series or in a parallel combination to control complex circuits or signals.

Types of Passive Components

Capacitors

A capacitor is a passive component that can gather and hold a charge in a way that is similar to how a battery functions. This type of passive component is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to a power source. One plate accumulates a positive charge and the other plate accumulates a negative charge. It can hold the charge even when the voltage is no longer applied. Different types of capacitors are film capacitors, mica capacitors, ceramic capacitors, electrolytic capacitors, aluminium electrolytic capacitors, tantalum electrolytic capacitors and power factor correction capacitors.

Resistors

Another type of passive component is the resistor. A Resistor is an electrical device that resists the flow of electrical current. Although a resistor does not amplify or shape the electric current in any way, it's a powerful little device as it enables you to put the brakes on current flow in a very controlled way.

Inductors

An inductor is a passive component that can store or deliver energy but cannot generate it. An ideal inductor is lossless, meaning that it can store energy indefinitely as no energy is lost as heat. Inductors are sometimes known as coils, chokes, electromagnets and solenoids.

Ferrite Cores

A ferrite core is a ceramic compound that includes a mix of iron and another type of metal. Ferrite is common in many types of electrical components, including antennas. This magnetic core features wound components; some examples would include windings from a transformer and inductors. It is useful because of its low electrical conductivity and high magnetic permeability.

Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic equipment and circuitry with added protection against the harmful effects of electricity surges, improving their longevity.

RS is a supplier of passive components with a wide variety of quality products from leading manufacturers across the world.

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Antennas
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Capacitors
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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Inductors
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Passive Components Kits
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Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
Variable Resistors
Variable Resistors

169790 Products showing for Passive Components

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Panasonic ERJ H2C 4.7 Ω, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJH2CF4R70X
  • RS Stock No. 228-4408
  • Mfr. Part No. ERJH2CF4R70X
Subtotal (100 units, on tapes of 100)
$12.10(exc. GST)
$0.121/unit
In Stock
Panasonic 68 μF Capacitor 80V dc, Through Hole - EEUFS1K680B Radial Lead
  • RS Stock No. 176-3877
  • Mfr. Part No. EEUFS1K680B
Subtotal (20 units, in packs of 20)
$12.46(exc. GST)
$0.623/unit
In Stock
Panasonic ERJ H2R 100 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.1 W - ERJH2RF1003X
  • RS Stock No. 228-4570
  • Mfr. Part No. ERJH2RF1003X
Subtotal (100 units, on tapes of 100)
$10.10(exc. GST)
$0.101/unit
In Stock
Panasonic ERJ H2G 4.7 kΩ, 0402 Thick Film Surface Mount Resistor ±5 % 0.1 W - ERJH2GJ472X
  • RS Stock No. 228-4523
  • Mfr. Part No. ERJH2GJ472X
Subtotal (100 units, on tapes of 100)
$7.60(exc. GST)
$0.076/unit
Temporarily out of stock
Panasonic ERJ H2C 1.2 Ω, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJH2CF1R20X
  • RS Stock No. 228-4392
  • Mfr. Part No. ERJH2CF1R20X
Subtotal (100 units, on tapes of 100)
$12.10(exc. GST)
$0.121/unit
In Stock
Wurth Elektronik, WE-HEPC, 5030 Shielded Power Inductor with a Polystyrene Core, 4.7 μH Shielded 25 % 1.4 A Idc
  • RS Stock No. 270-0828
  • Mfr. Part No. 74408053003
Subtotal (2000 units, on reels of 2000)
$1,542.00(exc. GST)
$0.771/unit
Temporarily out of stock
Panasonic ERJ H2C 6.8 Ω, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJH2CF6R80X
  • RS Stock No. 228-4411
  • Mfr. Part No. ERJH2CF6R80X
Subtotal (10000 units, on reels of 10000)
$670.00(exc. GST)
$0.067/unit
In Stock
Taoglas PA.25A Omni-Directional Antenna with SMA Connector
  • RS Stock No. 784-519
  • Mfr. Part No. PA.25A
Subtotal (1 unit)
$17.61(exc. GST)
$17.61/unit
In Stock
Panasonic ERJ H3E 39 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.13 W - ERJH3EF3902V
  • RS Stock No. 228-4736
  • Mfr. Part No. ERJH3EF3902V
Subtotal (100 units, on tapes of 100)
$8.90(exc. GST)
$0.089/unit
Temporarily out of stock
Bourns SRU6011: 6 Values Inductor Kit, 54 pieces
  • RS Stock No. 693-0727
  • Mfr. Part No. SRU60-LAB1
Subtotal (1 unit)
$47.16(exc. GST)
$47.16/unit
In Stock
Panasonic ERJ H2R 47 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJH2RF4702X
  • RS Stock No. 228-4652
  • Mfr. Part No. ERJH2RF4702X
Subtotal (100 units, on tapes of 100)
$10.60(exc. GST)
$0.106/unit
Temporarily out of stock
KEMET 4700 μF Capacitor 250V dc, Screw - ALS30A472MF250
  • RS Stock No. 173-2025
  • Mfr. Part No. ALS30A472MF250
Subtotal (16 units, in bags of 16)
$1,023.584(exc. GST)
$63.974/unit
In Stock
TDK Single Layer Ceramic Capacitor 100 pF 1kV dc ±5 %, CC45, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 262-1848
  • Mfr. Part No. CC45SL3AD101JYNNA
Subtotal (20 units, in bags of 20)
$3.86(exc. GST)
$0.193/unit
In Stock
Alps Alpine RK09K 10 kΩ Rotary Carbon Film Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole, RK09K1110A2Y
  • RS Stock No. 172-6288
  • Mfr. Part No. RK09K1110A2Y
Subtotal (1000 units, in boxes of 1000)
$1,545.00(exc. GST)
$1.545/unit
In Stock
Panasonic ERJ HP6 1 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.5 W - ERJHP6F1001V
  • RS Stock No. 228-4958
  • Mfr. Part No. ERJHP6F1001V
Subtotal (100 units, on tapes of 100)
$12.70(exc. GST)
$0.127/unit
Temporarily out of stock
Wurth Elektronik 10 μF Capacitor 16V dc, Surface Solder - 865090368008
  • RS Stock No. 185-5130
  • Mfr. Part No. 865090368008
Subtotal (2000 units, on reels of 2000)
$524.00(exc. GST)
$0.262/unit
In Stock
Panasonic ERJ H2R 27 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJH2RF2702X
  • RS Stock No. 228-4623
  • Mfr. Part No. ERJH2RF2702X
Subtotal (100 units, on tapes of 100)
$12.30(exc. GST)
$0.123/unit
Temporarily out of stock
Arcol Ohmite PCS 1 mΩ, 1206 Resistive Fixed Resistor 0.01 1 W - PCS1206FR0010ET
  • RS Stock No. 760-400
  • Mfr. Part No. PCS1206FR0010ET
Subtotal (4000 units, on reels of 4000)
$2,088.00(exc. GST)
$0.522/unit
In Stock
Bourns Absolute Mechanical Rotary Encoder with a 3.17 mm Plain Shaft (Not Indexed), Through Hole
  • RS Stock No. 789-9490P
  • Mfr. Part No. EMS22A50-D28-LT6
Subtotal (1 unit, supplied in a tray)
$100.61(exc. GST)
$100.61/unit
Currently unavailable
Panasonic ERJ H3E 82 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.13 W - ERJH3EF8202V
  • RS Stock No. 228-4767
  • Mfr. Part No. ERJH3EF8202V
Subtotal (5000 units, on reels of 5000)
$220.00(exc. GST)
$0.044/unit
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