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
EMI Filters & Protection
EMI Filters & Protection
Fixed Resistors
Fixed Resistors
Inductors
Inductors
Passive Components Kits
Passive Components Kits
Rotary Encoders
Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
Variable Resistors
Variable Resistors

163771 Products showing for Passive Components

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Wurth Elektronik 331061603010 Contact Finger of Gold Plated Beryllium Copper Alloy With Mounting Screw 6 mm x 3mm x 10
  • RS Stock No. 773-4255
  • Mfr. Part No. 331061603010
Subtotal (5 units, in bags of 5)
SGD15.12(exc. GST)
SGD3.024/unit
In Stock
Baumer 30V dc, 8 V dc 1024 ppr Pulse Optical Encoder with a 10 mm Solid Shaft, Flange, Connector
  • RS Stock No. 269-1691
  • Mfr. Part No. EIL580-SC10.5EN.01024.A
Subtotal (1 unit)
SGD409.30(exc. GST)
SGD409.30/unit
Currently unavailable
KEMET PME271 Paper Capacitor X2 300V ac 300 V dc, Through Hole
  • RS Stock No. 206-7724
  • Mfr. Part No. PME271E610MR30
Subtotal (5 units, in packs of 5)
SGD22.53(exc. GST)
SGD4.506/unit
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Eccel Technology Ltd RFID-ANT1356-25x25-800 v1 PCB RFID Antenna with JST PHR-4 Connector, High Frequency RFID
  • RS Stock No. 135-0272
  • Mfr. Part No. RFID-ANT1356-25x25-800 v1
Subtotal (1 unit, in bags of 1)
SGD26.38(exc. GST)
SGD26.38/bag
Temporarily out of stock
Bourns, SRN6045HA, 6045 Shielded Power Inductor with a Ferrite Core, 3.3 μH ±30 % 4 A Idc Q:20
  • RS Stock No. 247-5970
  • Mfr. Part No. SRN6045HA-3R3Y
Subtotal (10 units, on tapes of 10)
SGD5.20(exc. GST)
SGD0.52/unit
Temporarily out of stock
Murata 22 μF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 247-8183
  • Mfr. Part No. GRM32ER71E226KE15L
Subtotal (10 units, on tapes of 10)
SGD5.41(exc. GST)
SGD0.541/unit
Temporarily out of stock
Yageo RC_L 20 kΩ, 0201 Thick Film Surface Mount Resistor ±1 % 0.05 W - RC0201FR-0720KL
  • RS Stock No. 198-7586
  • Mfr. Part No. RC0201FR-0720KL
Subtotal (10000 units, on reels of 10000)
SGD70.00(exc. GST)
SGD0.007/unit
In Stock
Yageo RC_L 150 Ω, 0201 Thick Film Surface Mount Resistor ±1 % 0.05 W - RC0201FR-07150RL
  • RS Stock No. 198-7568
  • Mfr. Part No. RC0201FR-07150RL
Subtotal (100 units, on tapes of 100)
SGD1.10(exc. GST)
SGD0.011/unit
In Stock
Yageo RC_L 10 kΩ, 0201 Thick Film Surface Mount Resistor ±1 % 0.05 W - RC0201FR-0710KL
  • RS Stock No. 198-7559
  • Mfr. Part No. RC0201FR-0710KL
Subtotal (100 units, on tapes of 100)
SGD1.00(exc. GST)
SGD0.01/unit
In Stock
KEMET 1 F Supercapacitor -20 to 80 % Tolerance, Supercap FY 5.5V dc, Through Hole
  • RS Stock No. 789-8012
  • Mfr. Part No. FYH0H105ZF
Subtotal (1 unit)
SGD12.40(exc. GST)
SGD12.40/unit
In Stock
RS PRO 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 842-7002
Subtotal (1 unit)
SGD15.40(exc. GST)
SGD15.40/unit
In Stock
TDK 220 nF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 242-7281
  • Mfr. Part No. C1005X5R1E224K050BC
Subtotal (50 units, in packs of 50)
SGD2.30(exc. GST)
SGD0.046/unit
In Stock
Panasonic 680 μF Capacitor 16V dc, Through Hole - EEUFC1C681 Radial Lead
  • RS Stock No. 572-176
  • Mfr. Part No. EEUFC1C681
Subtotal (5 units, in packs of 5)
SGD6.47(exc. GST)
SGD1.294/unit
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Sifam 29.5 mm Knob Diameter Black Potentiometer Knob Cap for 6 mm Shaft Axial, C290-BLK
  • RS Stock No. 226-000
  • Mfr. Part No. C290-BLK
Subtotal (10 units, in packs of 10)
SGD10.01(exc. GST)
SGD1.001/unit
In Stock
Elma Potentiometer Knob 21 mm 6 mm, Grey
  • RS Stock No. 243-9547
  • Mfr. Part No. 020-4510
Subtotal (1 unit)
SGD8.33(exc. GST)
SGD8.33/unit
In Stock
Vishay, 1 Ω 1.1 kW Thick Film Chassis Mount Resistor ±5 %
  • RS Stock No. 756-8935P
  • Mfr. Part No. LPS1100H1R00JB
Subtotal (1 unit, supplied in a bag)
SGD350.14(exc. GST)
SGD350.14/unit
In Stock
Vishay 249 50 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole, 249BBHS0XB25503KA
  • RS Stock No. 410-312
  • Mfr. Part No. 249BBHS0XB25503KA
Subtotal (1 unit)
SGD24.11(exc. GST)
SGD24.11/unit
In Stock
TE Connectivity CRG 15 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRG0603F15K
  • RS Stock No. 213-2430
  • Mfr. Part No. CRG0603F15K
Subtotal (50 units, in packs of 50)
SGD1.05(exc. GST)
SGD0.021/unit
In Stock
Bourns 3540 500 Ω Rotary Potentiometer 10-Turns 1-Gang Panel Mount, 3540S-1-501L
  • RS Stock No. 522-3012
  • Mfr. Part No. 3540S-1-501L
Subtotal (1 unit)
SGD46.55(exc. GST)
SGD46.55/unit
In Stock
TE Connectivity 56 kΩ Metal Oxide Resistor 5 W 5 %
  • RS Stock No. 187-0188
  • Mfr. Part No. ROX5SSJ56K
Subtotal (20 units, in packs of 20)
SGD13.98(exc. GST)
SGD0.699/unit
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