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
Passive Components Kits
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

160631 Products showing for Passive Components

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Last RS stock
Vishay CRCW 1.78 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.06 W - CRCW04021K78FKED
  • RS Stock No. 678-8917
  • Mfr. Part No. CRCW04021K78FKED
Subtotal (1 pack of 50 units)
SGD0.60(exc. GST)
SGD0.012/unit
Temporarily out of stock
RS PRO 3.3 μF Capacitor 50V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 170-1048
Subtotal (1 bag of 2000 units)
SGD126.00(exc. GST)
SGD0.063/unit
Last RS stock
TE Connectivity CPF 953 Ω, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0402B953RE1
  • RS Stock No. 122-6469
  • Mfr. Part No. CPF0402B953RE1
Subtotal (1 bag of 20 units)
SGD7.36(exc. GST)
SGD0.368/unit
In Stock
Yageo PE_L 30 mΩ, 1206 Current Sensing Surface Mount Resistor ±1 % 0.25 W - PE1206FRM070R03L
  • RS Stock No. 199-5894
  • Mfr. Part No. PE1206FRM070R03L
Subtotal (1 tape of 20 units)
SGD7.32(exc. GST)
SGD0.366/unit
In Stock
Wurth Elektronik, WE-HCI, 1050 Shielded Wirewound Surface Mount Inductor with a WE-Superflux Core, 5.5 μH Flat Wire
  • RS Stock No. 736-1973
  • Mfr. Part No. 744325550
Subtotal (1 unit)
SGD5.80(exc. GST)
SGD5.80/unit
In Stock
TDK 220 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 242-7380P
  • Mfr. Part No. C1608X7R1H224K080AE
Subtotal 50 units (supplied on a continuous strip)
SGD4.80(exc. GST)
SGD0.096/unit
In Stock
Yageo 3.3 pF Multilayer Ceramic Capacitor, 50V dc, 0.25 pF, Surface
  • RS Stock No. 199-2128P
  • Mfr. Part No. CC0402CRNPO9BN3R3
Subtotal 1000 units (supplied on a reel)
SGD10.00(exc. GST)
SGD0.01/unit
Being discontinued
Nichicon 100 μF Capacitor 50V dc, Surface Solder - UBC1H101MNS1MS
  • RS Stock No. 243-7211
  • Mfr. Part No. UBC1H101MNS1MS
Subtotal (1 unit)
SGD3.38(exc. GST)
SGD3.38/unit
In Stock
TDK, B84112G 36 A 250V ac/dc 50Hz, 60 Hz, Chassis Mount EMC Filter, Screw 1 Phase
  • RS Stock No. 124-5300
  • Mfr. Part No. B84112G0000M136
Subtotal (1 unit)
SGD110.05(exc. GST)
SGD110.05/unit
Temporarily out of stock
Murata 1 μF Multilayer Ceramic Capacitor, 35V dc, ±10 %, Surface
  • RS Stock No. 170-6098
  • Mfr. Part No. GCM21BR7YA105KA55L
Subtotal (1 reel of 3000 units)
SGD228.00(exc. GST)
SGD0.076/unit
In Stock
Bourns, SRN6045, 6045 Shielded Surface Mount Inductor with a Ferrite Core, 22 μH Semi Shielded 20 % 1.5 A Idc Q:17
  • RS Stock No. 223-1799P
  • Mfr. Part No. SRN6045-220M
Subtotal 10 units (supplied on a continuous strip)
SGD4.90(exc. GST)
SGD0.49/unit
In Stock
Bourns, GDT35 75 V dc 20 kA, Surface 3 Electrode Gas Discharge Tube Gas Discharge Tube
  • RS Stock No. 264-5516
  • Mfr. Part No. GDT35-07-S1-RP
Subtotal (1 reel of 1000 units)
SGD1,439.00(exc. GST)
SGD1.439/unit
Currently unavailable
Panasonic ECQUA Film Capacitor X2, ±20 %, 330 nF 275V ac, Through Hole
  • RS Stock No. 180-5170
  • Mfr. Part No. ECQUAAF334SA
Subtotal (1 pack of 20 units)
SGD44.70(exc. GST)
SGD2.235/unit
In Stock
Mobilemark SCR12-2400-WHT WiFi Antenna Wall Mount with Type N Female Connector
  • RS Stock No. 723-9129
  • Mfr. Part No. SCR12-2400-WHT
Subtotal (1 unit)
SGD399.96(exc. GST)
SGD399.96/unit
In Stock
2 mΩ, Surface Trimmer Potentiometer, Gull Wing 0.25 W Top Adjust Nidec Components, ST5
  • RS Stock No. 244-4446
  • Mfr. Part No. ST-5ETW103
Subtotal (1 unit)
SGD5.16(exc. GST)
SGD5.16/unit
Currently unavailable
KEMET 47 μF Surface Polymer Capacitor, 8V dc
  • RS Stock No. 187-8507
  • Mfr. Part No. T520B476M008ATE070
Subtotal (1 pack of 10 units)
SGD8.56(exc. GST)
SGD0.856/unit
In Stock
Nidec Components M-22E10 10 kΩ Rotary Wirewound Potentiometer 10-Turns 1-Gang, M-22E10 10K
  • RS Stock No. 244-4032
  • Mfr. Part No. M-22E10 10K
Subtotal (1 tray of 10 units)
SGD214.37(exc. GST)
SGD21.437/unit
In Stock
Wurth Elektronik, WE-LQS, 4018 Shielded Wirewound Surface Mount Inductor 10 μH Semi Shielded ±20 % 1.2 A Idc
  • RS Stock No. 814-2521P
  • Mfr. Part No. 74404042100
Subtotal 5 units (supplied on a continuous strip)
SGD7.32(exc. GST)
SGD1.464/unit
Last RS stock
Vishay CRCW 390 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW0603390KFKEA
  • RS Stock No. 169-4364
  • Mfr. Part No. CRCW0603390KFKEA
Subtotal (1 reel of 5000 units)
SGD70.00(exc. GST)
SGD0.014/unit
In Stock
Wurth Elektronik, WE-PMI, 0805 Unshielded Multilayer Surface Mount Inductor 3.3 μH Multilayer ±20 % 1 A Idc Q:25
  • RS Stock No. 798-1940
  • Mfr. Part No. 74479775233
Subtotal (1 bag of 5 units)
SGD7.86(exc. GST)
SGD1.572/unit
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