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

163674 Products showing for Passive Components

Sort By
353 of 999+
In Stock
Bourns 10 Ω Thick Film Resistor 20 W 1 %
  • RS Stock No. 796-2466P
  • Mfr. Part No. PWR220T-20-10R0F
Subtotal 1 unit (supplied in a tube)
SGD7.70(exc. GST)
SGD7.70/unit
In Stock
Bourns CHV 220 kΩ, 2512 Thick Film Surface Mount Resistor ±1 % 1 W - CHV2512-FX-2203ELF
  • RS Stock No. 869-6053
  • Mfr. Part No. CHV2512-FX-2203ELF
Subtotal (1 bag of 10 units)
SGD4.15(exc. GST)
SGD0.415/unit
Currently unavailable
Vishay 130 kΩ Thin Film Resistor 0.4 W 1 %
  • RS Stock No. 151-432P
  • Mfr. Part No. MBA02040C1303FC100
Subtotal 100 units (supplied as a tape)
SGD15.30(exc. GST)
SGD0.153/unit
In Stock
Vishay 470 μF Aluminium Electrolytic Capacitor 550V, Through Hole - MAL219350471E3
  • RS Stock No. 732-873
  • Mfr. Part No. MAL219350471E3
Subtotal (1 unit)
SGD59.29(exc. GST)
SGD59.29/unit
Currently unavailable
TE Connectivity CPF 619 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0603B619KE1
  • RS Stock No. 123-5332
  • Mfr. Part No. CPF0603B619KE1
Subtotal (1 reel of 1000 units)
SGD240.00(exc. GST)
SGD0.24/unit
In Stock
Yageo 470 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 198-8247P
  • Mfr. Part No. CS0805KKX7R9BB474
Subtotal 100 units (supplied on a continuous strip)
SGD15.40(exc. GST)
SGD0.154/unit
In Stock
TE Connectivity 12 kΩ Carbon Film Resistor 0.5 W 5 %
  • RS Stock No. 132-753P
  • Mfr. Part No. CFR50J12K
Subtotal 10 units (supplied as a tape)
SGD1.14(exc. GST)
SGD0.114/unit
In Stock
Vishay 1500 μF Capacitor 16V dc, SMD Surface Mount - MAL215099515E3 Surface Mount
  • RS Stock No. 280-0339P
  • Mfr. Part No. MAL215099515E3
Subtotal 1 unit (supplied on a continuous strip)
SGD4.73(exc. GST)
SGD4.73/unit
Currently unavailable
TE Connectivity 3550 4.7 kΩ, 4320 Thick Film Surface Mount Resistor ±5 % 5 W - 35504K7JT
  • RS Stock No. 186-5582
  • Mfr. Part No. 35504K7JT
Subtotal (1 reel of 1000 units)
SGD781.00(exc. GST)
SGD0.781/unit
Limited stock
Caddock 100 mΩ Power Film Resistor 15 W 1 % MP915-0.10-1%
  • RS Stock No. 320-4687
  • Mfr. Part No. MP915-0.10-1%
Subtotal (1 unit)
SGD7.89(exc. GST)
SGD7.89/unit
In Stock
RS PRO 4.7 kΩ, 2512 Thick Film Surface Mount Resistor 0.05 1 W
  • RS Stock No. 183-9986P
Subtotal 1000 units (supplied on a reel)
SGD64.00(exc. GST)
SGD0.064/unit
Temporarily out of stock
Schaffner FN 751X, Feedthrough Capacitor 100V ac 4.7 nF, Bulkhead Mount
  • RS Stock No. 302-9795
  • Mfr. Part No. FN7511-10-M3
Subtotal (1 unit)
SGD105.11(exc. GST)
SGD105.11/unit
Temporarily out of stock
Panasonic 100 μF Aluminium Electrolytic Capacitor 50V dc, Radial - EEHAZT1H101B
  • RS Stock No. 210-5768
  • Mfr. Part No. EEHAZT1H101B
Subtotal (1 tape of 2 units)
SGD5.88(exc. GST)
SGD2.94/unit
In Stock
Wurth Elektronik, WE-MK, 0402 Shielded Multilayer Surface Mount Inductor with a Ceramic Core, 1 nH Multilayer ±2 % 300
  • RS Stock No. 245-8391P
  • Mfr. Part No. 7447840010G
Subtotal 10 units (supplied on a continuous strip)
SGD0.78(exc. GST)
SGD0.078/unit
Currently unavailable
Panasonic ERJPC3 442 Ω, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B4420V
  • RS Stock No. 785-051
  • Mfr. Part No. ERJPC3B4420V
Subtotal (1 tape of 10 units)
SGD0.82(exc. GST)
SGD0.082/unit
In Stock
Vishay RH050100K0FE02, 100 kΩ 50 W Wirewound Panel Mount Fixed Resistor ±1 %
  • RS Stock No. 845-9867
  • Mfr. Part No. RH050100K0FE02
Subtotal (1 unit)
SGD25.97(exc. GST)
SGD25.97/unit
Temporarily out of stock
TE Connectivity Holsworthy RT73 2 mΩ, 0805 Thick Film Surface Mount Resistor 0.1 % Surface 0.25 W - RT73F2A2M0BTD
  • RS Stock No. 619-517
  • Mfr. Part No. RT73F2A2M0BTD
Subtotal (1 reel of 5000 units)
SGD1,715.00(exc. GST)
SGD0.343/unit
In Stock
Yageo AC 5.1 kΩ, 0805 Thick Film Resistor ±1 % 0.13 W
  • RS Stock No. 197-8201P
  • Mfr. Part No. AC0805FR-075K1L
Subtotal 500 units (supplied on a reel)
SGD8.00(exc. GST)
SGD0.016/unit
Temporarily out of stock
TE Connectivity 8.2 Ω Wirewound Fusible Resistor 3 W 5 % FWFU3W8R2J
  • RS Stock No. 732-502
  • Mfr. Part No. FWFU3W8R2J
Subtotal (1 tape of 50 units)
SGD16.95(exc. GST)
SGD0.339/unit
Last RS stock
TE Connectivity, 3650, 0603 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 330 nH ±5 % 100 mA Idc Q:25
  • RS Stock No. 532-3106
  • Mfr. Part No. 36501JR33JTDG
Subtotal (1 pack of 10 units)
SGD5.64(exc. GST)
SGD0.564/unit
1
353
8184
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