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
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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Variable Resistors

161663 Products showing for Passive Components

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2184 of 999+
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Wurth Elektronik, WE-XHMA, 8080 Shielded Surface Mount Inductor with a Composite Core Core, 1 μH ±20 % 17 A Idc
  • RS Stock No. 248-8269
  • Mfr. Part No. 78439358010
Subtotal (1 unit)
SGD6.64(exc. GST)
SGD6.64/unit
In Stock
ROHM MCRS Series 680 Ω, 0402 Thick Film Resistor ±1 % Surface 0.1 W - MCR01SMQPF6801
  • RS Stock No. 780-762
  • Mfr. Part No. MCR01SMQPF6801
Subtotal (1 tape of 1000 units)
SGD15.00(exc. GST)
SGD0.015/unit
In Stock
KEMET 2.11 mH 14 A Common Mode Choke 9.91 mΩ 500V ac/dc
  • RS Stock No. 764-477
  • Mfr. Part No. SCT31X-140-1R7A017JV
Subtotal (1 unit)
SGD13.88(exc. GST)
SGD13.88/unit
In Stock
Wurth Elektronik 10 pF Multilayer Ceramic Capacitor, 100V dc, ±5 %, Surface
  • RS Stock No. 242-1088
  • Mfr. Part No. 885012007076
Subtotal (1 pack of 50 units)
SGD4.45(exc. GST)
SGD0.089/unit
In Stock
ROHM MCRS Series 36 Ω, 0402 Thick Film Resistor ±1 % Surface 0.1 W - MCR01SMQPF36R0
  • RS Stock No. 780-805
  • Mfr. Part No. MCR01SMQPF36R0
Subtotal (1 tape of 1000 units)
SGD15.06(exc. GST)
SGD15.06/unit
In Stock
TDK Single Layer Ceramic Capacitor 1000 pF 2kV dc ±10 %, CK45, Through Hole 105 °C Max Op. Temp.
  • RS Stock No. 253-2782
  • Mfr. Part No. CK45-B3DD102KYGNA
Subtotal (1 tape of 20 units)
SGD7.56(exc. GST)
SGD0.378/unit
In Stock
Bourns PDB8 500 kΩ Rotary Audio Potentiometer 1-Turns 1-Gang PCB
  • RS Stock No. 269-2394
  • Mfr. Part No. PDB081-P10-103B1
Subtotal (1 unit)
SGD1.70(exc. GST)
SGD1.70/unit
Currently unavailable
Vishay, IHLP, 1212 Shielded Surface Mount Inductor with a Metal Composite Core, 220 nH ±20 % 8.83 A Idc
  • RS Stock No. 248-8063
  • Mfr. Part No. IHLP1212ABEVR22M5A
Subtotal (1 tape of 5 units)
SGD6.52(exc. GST)
SGD1.304/unit
In Stock
ROHM MCR 200 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - MCR03EZPFX2000
  • RS Stock No. 901-3538
  • Mfr. Part No. MCR03EZPFX2000
Subtotal (1 bag of 100 units)
SGD0.90(exc. GST)
SGD0.009/unit
In Stock
ROHM ESR25 1.5 kΩ, 1210 Thick Film Resistor ±1 % 0.66 W - ESR25JZPF1501
  • RS Stock No. 263-7400
  • Mfr. Part No. ESR25JZPF1501
Subtotal (1 tape of 10 units)
SGD3.65(exc. GST)
SGD0.365/unit
Temporarily out of stock
Panasonic 1 mF Polymer Capacitor 2.5V dc, TPF Series
  • RS Stock No. 179-3578
  • Mfr. Part No. ETPF1000M6H
Subtotal (1 pack of 5 units)
SGD40.40(exc. GST)
SGD8.08/unit
In Stock
Welwyn 47 kΩ Wirewound Resistor 14 W 5 % W24-47KJI
  • RS Stock No. 144-2903
  • Mfr. Part No. W24-47KJI
Subtotal (1 box of 50 units)
SGD320.50(exc. GST)
SGD6.41/unit
Temporarily out of stock
Panasonic, ETQP4M Shielded Wirewound Surface Mount Inductor with a Metal Composite Core, 3.3 μH ±20 % 8.2 A Idc
  • RS Stock No. 238-3620
  • Mfr. Part No. ETQP4M3R3YFN
Subtotal (1 reel of 500 units)
SGD458.00(exc. GST)
SGD0.916/unit
Temporarily out of stock
ROHM ESR03 270 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W - ESR03EZPF2703
  • RS Stock No. 263-0901
  • Mfr. Part No. ESR03EZPF2703
Subtotal (1 tape of 100 units)
SGD6.10(exc. GST)
SGD0.061/unit
In Stock
Wurth Elektronik, WE-MAPI, 3015 Wirewound Surface Mount Inductor with a Composite Iron Powder Core, 3.3 μH Moulded ±20 %
  • RS Stock No. 792-2792
  • Mfr. Part No. 74438335033
Subtotal (1 unit)
SGD1.47(exc. GST)
SGD1.47/unit
In Stock
TE Connectivity 4.7 Ω Metal Oxide Resistor 3 W 5 % ROX3SJ4R7
  • RS Stock No. 214-2459
  • Mfr. Part No. ROX3SJ4R7
Subtotal (1 pack of 10 units)
SGD4.58(exc. GST)
SGD0.458/unit
In Stock
Panasonic ERA8V 1.5 kΩ, 1206 Thin Film Resistor 0.1 % 0.25 W - ERA8VPB1501V
  • RS Stock No. 259-7053
  • Mfr. Part No. ERA8VPB1501V
Subtotal (1 tape of 5 units)
SGD9.32(exc. GST)
SGD1.864/unit
Currently unavailable
Vishay TNPW 0.00499 mΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.13 W - TNPW06034K99BEEN
  • RS Stock No. 262-0776
  • Mfr. Part No. TNPW06034K99BEEN
Subtotal (1 tape of 10 units)
SGD7.01(exc. GST)
SGD0.701/unit
In Stock
Vishay 100 μF Capacitor 63V dc, Through Hole - MAL213668101E3 Radial
  • RS Stock No. 218-9824
  • Mfr. Part No. MAL213668101E3
Subtotal (1 pack of 5 units)
SGD10.52(exc. GST)
SGD2.104/unit
In Stock
Vishay 2.7 Ω Metal Film Resistor 3 W 5 % PR03000202708JAC00
  • RS Stock No. 441-2485
  • Mfr. Part No. PR03000202708JAC00
Subtotal (1 pack of 10 units)
SGD4.00(exc. GST)
SGD0.40/unit
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