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.

Antennas
Antennas
Capacitors
Capacitors
Crystals, Oscillators & Resonators
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
Surge Protection Components
Surge Protection Components
Variable Resistors
Variable Resistors

160600 Products showing for Passive Components

Sort By
464 of 999+
Temporarily out of stock
Phoenix Contact, VAL Surge Arrester 440V dc Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 488-281
  • Mfr. Part No. 1466646
Subtotal (1 unit)
SGD537.84(exc. GST)
SGD537.84/unit
In Stock
TDK 22 μF Multilayer Ceramic Capacitor, 10V dc, ±20 %, Surface
  • RS Stock No. 915-9463
  • Mfr. Part No. C2012X7S1A226M125AC
Subtotal (1 pack of 5 units)
SGD3.71(exc. GST)
SGD0.742/unit
Temporarily out of stock
Yageo SR 10 Ω, 0402 Thick Film Surface Mount Resistor ±5 % 0.06 W - SR0402JR-0710RL
  • RS Stock No. 197-8375
  • Mfr. Part No. SR0402JR-0710RL
Subtotal (1 reel of 10000 units)
SGD610.00(exc. GST)
SGD0.061/unit
Temporarily out of stock
Yageo 33 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 199-2181
  • Mfr. Part No. CC0402JRNPO9BN330
Subtotal (1 tape of 1000 units)
SGD7.00(exc. GST)
SGD0.007/unit
In Stock
Yageo PU 0.5 mΩ, 3921 Metal Plate Surface Mount Resistor ±1 % 9 W - PU3921FKNP90U5L
  • RS Stock No. 199-5953
  • Mfr. Part No. PU3921FKNP90U5L
Subtotal (1 tape of 5 units)
SGD13.03(exc. GST)
SGD2.606/unit
In Stock
RS PRO 93 dB Through Hole Continuous External 13.5 mm Piezo Buzzer Component 30V ac Max
  • RS Stock No. 535-8039P
Subtotal 1 unit (supplied in a box)
SGD5.29(exc. GST)
SGD5.29/unit
Temporarily out of stock
Vishay, 560 Ω 50 W Thick Film Chassis Mount Resistor ±5 %
  • RS Stock No. 168-0149
  • Mfr. Part No. RCH50S560R0JS06
Subtotal (1 bag of 25 units)
SGD624.725(exc. GST)
SGD24.989/unit
In Stock
Wurth Elektronik 345 μH Ferrite Leaded Inductor, Max SRF:1.8 MHz, 2.1 A Idc, 200 mΩ Rdc, WE-SI
  • RS Stock No. 617-1344P
  • Mfr. Part No. 744116
Subtotal 1 unit (supplied in a bag)
SGD3.63(exc. GST)
SGD3.63/unit
In Stock
Vishay CRCW 60.4 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW080560R4FKEA
  • RS Stock No. 182-5293
  • Mfr. Part No. CRCW080560R4FKEA
Subtotal (1 reel of 1000 units)
SGD23.00(exc. GST)
SGD0.023/unit
Last RS stock
Vitrohm 100 Ω Wirewound Through Hole Fixed Resistor 2 W 5 % CRP200JB-RK-100RK1
  • RS Stock No. 212-3522
  • Mfr. Part No. CRP200JB-RK-100RK1
Subtotal (1 box of 1000 units)
SGD277.00(exc. GST)
SGD0.277/unit
In Stock
Arcol 8.2 Ω Non-Inductive Film Fixed Resistor 50 W 5 %
  • RS Stock No. 166-4579
  • Mfr. Part No. AP851 8R2 J 100PPM
Subtotal (1 tray of 50 units)
SGD416.25(exc. GST)
SGD8.325/unit
Temporarily out of stock
TE Connectivity, 1 Ω 200 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 164-3718
  • Mfr. Part No. HSC2001R0J
Subtotal (1 box of 2 units)
SGD136.06(exc. GST)
SGD68.03/unit
In Stock
Yageo RC 2.49 kΩ, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - RC0603FR-072K49L
  • RS Stock No. 242-4092
  • Mfr. Part No. RC0603FR-072K49L
Subtotal (1 tape of 100 units)
SGD0.70(exc. GST)
SGD0.007/unit
Last RS stock
NISSEI AMZ Polyester Capacitor, ±5 %, 150 pF 100 V dc 100V ac, Through Hole
  • RS Stock No. 183-3108
  • Mfr. Part No. AMZB0100J15100000000
Subtotal (1 pack of 10 units)
SGD9.80(exc. GST)
SGD0.98/unit
Temporarily out of stock
Vishay 33 μF Tantalum Tantalum Capacitor 10V dc, Surface, TMCU Series
  • RS Stock No. 188-2039
  • Mfr. Part No. TMCUB1A336KTRF
Subtotal (1 reel of 3000 units)
SGD1,026.00(exc. GST)
SGD0.342/unit
In Stock
KOA RN73R 10 kΩ, 0402 Metal Film Surface Mount Resistor ±1 % 0.06 W
  • RS Stock No. 253-2999P
  • Mfr. Part No. RN73R1ETTP1002F25
Subtotal 5 units (supplied on a continuous strip)
SGD0.80(exc. GST)
SGD0.16/unit
In Stock
Wurth Elektronik 1.1 mH 18 A Common Mode Choke 7 mΩ 500V ac
  • RS Stock No. 185-7030
  • Mfr. Part No. 744833011180
Subtotal (1 tray of 9 units)
SGD176.616(exc. GST)
SGD19.624/unit
Temporarily out of stock
Vitrohm 10 mΩ Ceramic Through Hole Fixed Resistor 5 W 1 % KNC500FB-AX-R01AA
  • RS Stock No. 212-3643
  • Mfr. Part No. KNC500FB-AX-R01AA
Subtotal (1 box of 200 units)
SGD276.40(exc. GST)
SGD1.382/unit
Temporarily out of stock
KEMET 10 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 500-2269
  • Mfr. Part No. C0805F103K1RACTU
Subtotal (1 pack of 25 units)
SGD4.55(exc. GST)
SGD0.182/unit
Temporarily out of stock
Murata 1 nF Multilayer Ceramic Capacitor, 500V, ±20 %, Through Hole Radial
  • RS Stock No. 174-6173
  • Mfr. Part No. DE1E3RB102MN4AR01F
Subtotal (1 box of 500 units)
SGD170.50(exc. GST)
SGD0.341/unit
1
464
8030
Results per page

Guides & Articles

Capacitors Guide
In our comprehensive Capacitors Guide we look at MLCC's and the alternatives available
Read more
Variable Resistors Guide
Everything you need to know about variable resistors
Read more

Related links