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

160845 Products showing for Passive Components

Sort By
1415 of 999+
In Stock
Bourns, SRP1038AA, 1038 Shielded Power Inductor with a Metal Alloy Powder Core, 10 μH ±20 % 7.5 A Idc Q:20
  • RS Stock No. 247-5983P
  • Mfr. Part No. SRP1038AA-100M
Subtotal 1 unit (supplied on a continuous strip)
SGD2.00(exc. GST)
SGD2.00/unit
In Stock
Murata 1 μF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 169-3966
  • Mfr. Part No. GCM219R71C105KA37D
Subtotal (1 reel of 4000 units)
SGD156.00(exc. GST)
SGD0.039/unit
In Stock
Panasonic 2200 μF Capacitor 63V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 923-3274
  • Mfr. Part No. ECA1JHG222
Subtotal (1 bag of 50 units)
SGD155.50(exc. GST)
SGD3.11/unit
Temporarily out of stock
Yageo RC_L 3.01 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.2 W - RC0603FR-073K01L
  • RS Stock No. 199-5558
  • Mfr. Part No. RC0603FR-073K01L
Subtotal (1 reel of 5000 units)
SGD20.00(exc. GST)
SGD0.004/unit
In Stock
Panasonic ERJUP3 180 kΩ, 0603 Surface Mount Resistor ±1 % 0.25 W - ERJUP3F1803V
  • RS Stock No. 243-2137
  • Mfr. Part No. ERJUP3F1803V
Subtotal (1 tape of 100 units)
SGD8.90(exc. GST)
SGD0.089/unit
In Stock
Welwyn 27 Ω Wirewound Resistor 7 W 5 %
  • RS Stock No. 139-3489
  • Mfr. Part No. W22-27RJI
Subtotal (1 bag of 5 units)
SGD17.60(exc. GST)
SGD3.52/unit
Last RS stock
TE Connectivity 47.5 kΩ Metal Film Resistor 0.25 W 0.1 % YR1B47K5CC
  • RS Stock No. 754-5816
  • Mfr. Part No. YR1B47K5CC
Subtotal (1 pack of 5 units)
SGD6.05(exc. GST)
SGD1.21/unit
In Stock
Panasonic 1000 μF Capacitor 16V dc, Radial, Through Hole - EEUFR1C102LB Radial Lead
  • RS Stock No. 240-3867
  • Mfr. Part No. EEUFR1C102LB
Subtotal (1 tape of 1000 units)
SGD405.00(exc. GST)
SGD0.405/unit
Temporarily out of stock
TDK B32521 Film Capacitor 1 μF 100V ac 100 V dc, Through Hole 2
  • RS Stock No. 896-1183
  • Mfr. Part No. B32521C1105J000
Subtotal (1 pack of 5 units)
SGD5.40(exc. GST)
SGD1.08/unit
In Stock
Broadcom 3.3V dc, 5 V dc Optical Encoder, Surface
  • RS Stock No. 220-7144
  • Mfr. Part No. AEDR-9820A-102
Subtotal (1 reel of 100 units)
SGD3,411.00(exc. GST)
SGD34.11/unit
Temporarily out of stock
Yageo 330 pF Multilayer Ceramic Capacitor, 1kV dc, ±10 %, Surface
  • RS Stock No. 199-2036
  • Mfr. Part No. CC1206KKX7RCBB331
Subtotal (1 tape of 50 units)
SGD7.54(exc. GST)
SGD7.54/tape
Temporarily out of stock
Panasonic 10 μF Capacitor 50V dc, Surface Mount - EEEHD1H100P
  • RS Stock No. 923-3284
  • Mfr. Part No. EEEHD1H100P
Subtotal (1 reel of 1000 units)
SGD218.00(exc. GST)
SGD0.218/unit
Temporarily out of stock
QANTEK 7.3728 MHz Crystal ±10 ppm Surface Mount 4-Pin 1 mm 7 mm 5mm
  • RS Stock No. 814-9620
  • Mfr. Part No. QC7A7.37280F12B12R
Subtotal (1 bag of 5 units)
SGD9.05(exc. GST)
SGD1.81/unit
Currently unavailable
TE Connectivity GRGP 68 Ω, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W - CRGP0603F68R
  • RS Stock No. 176-4758
  • Mfr. Part No. CRGP0603F68R
Subtotal (1 reel of 5000 units)
SGD155.00(exc. GST)
SGD0.031/unit
In Stock
TE Connectivity, 220 Ω 600 W Wirewound High Power Resistor ±5 %
  • RS Stock No. 224-0155
  • Mfr. Part No. TE600B220RJ
Subtotal (1 unit)
SGD147.61(exc. GST)
SGD147.61/unit
Temporarily out of stock
Vishay 1.5 μF MnO2 Tantalum Capacitor 16V dc, Surface, 293D Series
  • RS Stock No. 169-3322
  • Mfr. Part No. 293D155X9016A2TE3
Subtotal (1 reel of 2000 units)
SGD560.00(exc. GST)
SGD0.28/unit
Temporarily out of stock
Wurth Elektronik, WE-HCI, 2212 Shielded Wirewound Surface Mount Inductor with a Manganese Zinc Ferrite Core, 82 μH Flat
  • RS Stock No. 770-7193
  • Mfr. Part No. 74435588200
Subtotal (1 unit)
SGD10.07(exc. GST)
SGD10.07/unit
Last RS stock
TE Connectivity CPF 453 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0603B453KE1
  • RS Stock No. 123-9350
  • Mfr. Part No. CPF0603B453KE1
Subtotal (1 reel of 1000 units)
SGD246.00(exc. GST)
SGD0.246/unit
In Stock
Wurth Elektronik, WE-LF Shielded Wirewound Surface Mount Inductor with a Manganese Zinc Core, 27 mH Sector Winding ±30 %
  • RS Stock No. 387-3700
  • Mfr. Part No. 7446120027
Subtotal (1 unit)
SGD4.55(exc. GST)
SGD4.55/unit
In Stock
RS PRO 3.3 kΩ, 2512 Polymer Resistor 5 % 1.5 W
  • RS Stock No. 257-3291
Subtotal (1 tape of 100 units)
SGD20.30(exc. GST)
SGD0.203/unit
1
1415
8043
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