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

162999 Products showing for Passive Components

Sort By
1838 of 999+
In Stock
TE Connectivity SMQ 5.1 Ω Wirewound Surface Mount Resistor 5 % Surface 1 W - SMQW15R1JT
  • RS Stock No. 286-7533P
  • Mfr. Part No. SMQW15R1JT
Subtotal 5 units (supplied on a continuous strip)
SGD4.53(exc. GST)
SGD0.906/unit
Limited stock
Panasonic ERA3A 15000 Ω, Tape & Reel Resistive Fixed Resistor ±0.05 % Surface 0.1 W - ERA3ARW153V
  • RS Stock No. 785-232P
  • Mfr. Part No. ERA3ARW153V
Subtotal 10 units (supplied as a tape)
SGD8.71(exc. GST)
SGD0.871/unit
In Stock
Bourns 20 Ω Thick Film Resistor 35 W 1 % PWR220T-35-20R0F
  • RS Stock No. 167-0045
  • Mfr. Part No. PWR220T-35-20R0F
Subtotal (1 tube of 50 units)
SGD203.35(exc. GST)
SGD4.067/unit
In Stock
Vishay PRV6 100 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, PRV6SAABJYB25104KA
  • RS Stock No. 790-4202
  • Mfr. Part No. PRV6SAABJYB25104KA
Subtotal (1 unit)
SGD16.38(exc. GST)
SGD16.38/unit
Temporarily out of stock
KOA RN73R 330 Ω, 0402 Metal Film Surface Mount Resistor ±1 % 0.06 W - RN73R1ETTP3300F25
  • RS Stock No. 253-3046
  • Mfr. Part No. RN73R1ETTP3300F25
Subtotal (1 reel of 10000 units)
SGD780.00(exc. GST)
SGD0.078/unit
In Stock
Vishay RCC120 10 Ω, 1206 Thick Film Surface Mount Fixed Resistor Jumper 0.5 W - RCC12060000Z0EA
  • RS Stock No. 222-0762
  • Mfr. Part No. RCC12060000Z0EA
Subtotal (1 tape of 10 units)
SGD0.88(exc. GST)
SGD0.088/unit
Temporarily out of stock
KEMET 4.7 F Supercapacitor -20 to 80 % Tolerance, Supercap FG 5.5V dc, Through Hole
  • RS Stock No. 135-6151
  • Mfr. Part No. FG0H475ZF
Subtotal (1 unit)
SGD20.44(exc. GST)
SGD20.44/unit
In Stock
Bourns 3.3 μH Ferrite Leaded Inductor, Max SRF:50 MHz, Q:30, 3.6 A Idc, 18 mΩ Rdc, RLB
  • RS Stock No. 172-8373
  • Mfr. Part No. RLB0912-3R3ML
Subtotal (1 bag of 200 units)
SGD62.20(exc. GST)
SGD0.311/unit
In Stock
Vishay CRCW 0 mΩ, 0603 Thick Film Surface Mount Resistor ±0 % 0.25 W - CRCW06030000Z0EAHP
  • RS Stock No. 170-1982
  • Mfr. Part No. CRCW06030000Z0EAHP
Subtotal (1 reel of 5000 units)
SGD135.00(exc. GST)
SGD0.027/unit
Currently unavailable
KOA RN73R 180 Ω, 0402 Metal Film Surface Mount Resistor ±1 % 0.06 W
  • RS Stock No. 253-3022P
  • Mfr. Part No. RN73R1ETTP1800F25
Subtotal 5 units (supplied on a continuous strip)
SGD1.46(exc. GST)
SGD0.292/unit
Temporarily out of stock
Okdo ZCW-AB0004-600 Round WiFi Antenna with Type N Connector
  • RS Stock No. 250-6408
  • Mfr. Part No. ZCW-AB0004-600
Subtotal (1 unit)
SGD54.61(exc. GST)
SGD54.61/unit
In Stock
KOA RK73H 4.99 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - RK73H1JTTD4991F
  • RS Stock No. 123-4328
  • Mfr. Part No. RK73H1JTTD4991F
Subtotal (1 bag of 50 units)
SGD0.95(exc. GST)
SGD0.019/unit
In Stock
Panasonic ERA2V 27 kΩ, 0402 Thin Film Resistor 0.1 % 0.1 W
  • RS Stock No. 259-6845P
  • Mfr. Part No. ERA2VEB2702X
Subtotal 10 units (supplied on a continuous strip)
SGD3.82(exc. GST)
SGD0.382/unit
In Stock
RS PRO 1 mΩ, 2010 Polymer Resistor 5 % 3 W
  • RS Stock No. 257-3211
Subtotal (1 tape of 100 units)
SGD13.50(exc. GST)
SGD0.135/unit
Currently unavailable
Vishay 10 μF Capacitor 50V dc, SMD Solder - MAL215371109E3 Surface Mount
  • RS Stock No. 132-340
  • Mfr. Part No. MAL215371109E3
Subtotal (1 pack of 20 units)
SGD24.84(exc. GST)
SGD1.242/unit
Last RS stock
TE Connectivity CPF 4.02 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0402B4K02E1
  • RS Stock No. 701-5416
  • Mfr. Part No. CPF0402B4K02E1
Subtotal (1 pack of 10 units)
SGD3.51(exc. GST)
SGD0.351/unit
Temporarily out of stock
Panasonic, ETQP4M Shielded Wirewound Surface Mount Inductor with a Metal Composite Core, 2.2 μH ±20 % 14.8 A Idc
  • RS Stock No. 238-3608P
  • Mfr. Part No. ETQP4M2R2KVC
Subtotal 5 units (supplied on a continuous strip)
SGD6.86(exc. GST)
SGD1.372/unit
Currently unavailable
Murata 33 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 247-7836
  • Mfr. Part No. GCM155R71H333KE02D
Subtotal (1 reel of 10000 units)
SGD100.00(exc. GST)
SGD0.01/unit
Temporarily out of stock
TDK 10 mH Ferrite Leaded Inductor, Max SRF:350 kHz, Q:50, 110 mA Idc, 35 Ω Rdc, HLBC
  • RS Stock No. 166-0203
  • Mfr. Part No. B82145A1106J000
Subtotal (1 reel of 1250 units)
SGD816.25(exc. GST)
SGD0.653/unit
In Stock
1 kΩ, Through Hole Trimmer Potentiometer, Pin 0.2 W Top Adjust Bourns, 3306
  • RS Stock No. 488-5300
  • Mfr. Part No. 3306P-1-102
Subtotal (1 pack of 10 units)
SGD5.61(exc. GST)
SGD0.561/unit
1
1838
8150
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