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
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Variable Resistors

163921 Products showing for Passive Components

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In Stock
Bourns, SDR0805, 0805 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 10 μH ±20 % 2.3 A Idc Q:25
  • RS Stock No. 181-8186
  • Mfr. Part No. SDR0805-100ML
Subtotal (1 reel of 100 units)
SGD52.80(exc. GST)
SGD0.528/unit
In Stock
Bourns, Cat10 10 kΩ 5 % ISOL Resistor Array, 4 Resistors, 0.06 W total, 0804, Concave
  • RS Stock No. 181-4435
  • Mfr. Part No. CAT10-103J4LF
Subtotal (1 reel of 500 units)
SGD13.00(exc. GST)
SGD0.026/unit
Temporarily out of stock
KEMET 150 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 146-6535
  • Mfr. Part No. C0603C154K5RACTU
Subtotal (1 reel of 4000 units)
SGD164.00(exc. GST)
SGD0.041/unit
In Stock
Wurth Elektronik 74889302450 Internal SMT Antenna
  • RS Stock No. 238-9594
  • Mfr. Part No. 74889302450
Subtotal (1 tape of 5 units)
SGD5.50(exc. GST)
SGD1.10/unit
Last RS stock
Vishay CRCW 169 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.06 W - CRCW0402169KFKED
  • RS Stock No. 678-8829
  • Mfr. Part No. CRCW0402169KFKED
Subtotal (1 pack of 50 units)
SGD0.60(exc. GST)
SGD0.012/unit
In Stock
Welwyn 1 Ω Wirewound Resistor 14 W 5 % W24-1R0JI
  • RS Stock No. 144-2890
  • Mfr. Part No. W24-1R0JI
Subtotal (1 box of 50 units)
SGD225.00(exc. GST)
SGD4.50/unit
Limited stock
KEMET 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 133-5654
  • Mfr. Part No. C1206C104K5RACAUTO
Subtotal (1 pack of 150 units)
SGD10.80(exc. GST)
SGD0.072/unit
Temporarily out of stock
Yageo RC 62 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - RC0603FR-0762RL
  • RS Stock No. 242-4169
  • Mfr. Part No. RC0603FR-0762RL
Subtotal (1 reel of 5000 units)
SGD20.00(exc. GST)
SGD0.004/unit
Currently unavailable
Abracon 470 μH Ferrite Leaded Inductor, Max SRF:1 kHz, 1.3 A Idc, 568 mΩ Rdc 500V, AIUR-06
  • RS Stock No. 240-0870
  • Mfr. Part No. AIUR-06-471K
Subtotal (1 bag of 100 units)
SGD102.70(exc. GST)
SGD1.027/unit
Temporarily out of stock
Bourns CR0402 220 Ω, 0402 Thick Film Resistor 1 % 63 mW - CR0402-FX-2200GLF
  • RS Stock No. 247-6999
  • Mfr. Part No. CR0402-FX-2200GLF
Subtotal (1 tape of 1000 units)
SGD4.00(exc. GST)
SGD0.004/unit
In Stock
KEMET 10 μF MnO2 Tantalum Capacitor 50V dc, Surface, T491 Series
  • RS Stock No. 173-4152
  • Mfr. Part No. T491D106K050AT
Subtotal (1 reel of 500 units)
SGD901.50(exc. GST)
SGD1.803/unit
Temporarily out of stock
Panasonic 470 μF Surface Polymer Capacitor, 2V
  • RS Stock No. 246-9285
  • Mfr. Part No. EEFJX0D471RB
Subtotal (1 reel of 3500 units)
SGD6,230.00(exc. GST)
SGD1.78/unit
In Stock
Wurth Elektronik Ferrite Bead 10 mm (Through Hole) 6 mm (Axial) (6-Hole), 670 Ω impedance at 25 MHz, 976 Ω impedance at
  • RS Stock No. 124-1517
  • Mfr. Part No. 7427502
Subtotal (1 pack of 20 units)
SGD13.80(exc. GST)
SGD0.69/unit
In Stock
Murata 22 μF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 170-6104
  • Mfr. Part No. GCM32ER71C226KE19L
Subtotal (1 reel of 1000 units)
SGD473.00(exc. GST)
SGD0.473/unit
In Stock
KYOCERA AVX 2.2 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 174-7400
  • Mfr. Part No. 0805ZD225KAT2A
Subtotal (1 reel of 3000 units)
SGD267.00(exc. GST)
SGD0.089/unit
In Stock
Vishay CRCW 47 Ω, 0805 Thick Film Surface Mount Resistor ±1 % Surface 0.5 W - CRCW080547R0FKEAHP
  • RS Stock No. 812-3552
  • Mfr. Part No. CRCW080547R0FKEAHP
Subtotal (1 bag of 25 units)
SGD3.00(exc. GST)
SGD0.12/unit
Currently unavailable
TE Connectivity SM 4.3 kΩ Metal Film ±5 % 5 W - SMF54K3JT
  • RS Stock No. 807-7266
  • Mfr. Part No. SMF54K3JT
Subtotal (1 pack of 5 units)
SGD7.84(exc. GST)
SGD1.568/unit
In Stock
Panasonic 330 μF Aluminium Polymer Capacitor 25V dc, Surface
  • RS Stock No. 210-5969P
  • Mfr. Part No. EEHZT1E331V
Subtotal 2 units (supplied on a continuous strip)
SGD7.34(exc. GST)
SGD3.67/unit
Temporarily out of stock
Panasonic ERJ B2 330 Ω, 0612 Thick Film Resistor ±1 % 0.75 W - ERJB2AF331V
  • RS Stock No. 228-0718
  • Mfr. Part No. ERJB2AF331V
Subtotal (1 reel of 5000 units)
SGD1,155.00(exc. GST)
SGD0.231/unit
In Stock
Panasonic ERA 3.09 kΩ, 0603 Metal Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB3091V
  • RS Stock No. 182-6636
  • Mfr. Part No. ERA3AEB3091V
Subtotal (1 reel of 250 units)
SGD22.00(exc. GST)
SGD0.088/unit
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