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

163586 Products showing for Passive Components

Sort By
8079 of 999+
Last RS stock
TE Connectivity RQ73 3.01 kΩ, 1206 Thin Film Surface Mount Resistor ±0.1 % Surface 0.4 W
  • RS Stock No. 187-3106P
  • Mfr. Part No. RQ73C2B3K01BTDF
Subtotal (25 units, supplied on a continuous strip)
SGD27.80(exc. GST)
SGD1.112/unit
Currently unavailable
Panasonic ERJPC6 3600 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W - ERJPC6D3601V
  • RS Stock No. 784-802P
  • Mfr. Part No. ERJPC6D3601V
Subtotal (10 units, supplied on a continuous strip)
SGD0.94(exc. GST)
SGD0.094/unit
In Stock
Yageo 100 nF Multilayer Ceramic Capacitor, 50V dc, -20 to 80 %, Surface
  • RS Stock No. 200-6633P
  • Mfr. Part No. CC0603ZRY5V9BB104
Subtotal (500 units, supplied on a reel)
SGD10.00(exc. GST)
SGD0.02/unit
In Stock
Vishay CRCW 2.2 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.5 W - CRCW08052R20FKEAHP
  • RS Stock No. 812-3518
  • Mfr. Part No. CRCW08052R20FKEAHP
Subtotal (25 units, in bags of 25)
SGD2.675(exc. GST)
SGD0.107/unit
Temporarily out of stock
Panasonic ERJU03 330 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJU03F3300V
  • RS Stock No. 172-4260
  • Mfr. Part No. ERJU03F3300V
Subtotal (5000 units, on reels of 5000)
SGD125.00(exc. GST)
SGD0.025/unit
Temporarily out of stock
Wurth Elektronik 330 μF Capacitor 50V dc, Radial, Through Hole - 860160675028 Radial Lead
  • RS Stock No. 163-6868
  • Mfr. Part No. 860160675028
Subtotal (500 units, in boxes of 500)
SGD371.50(exc. GST)
SGD0.743/unit
In Stock
KOA RN73R 15.6 kΩ, 0603 Thin Film Resistor ±0.1 % 0.1 W - RN73R1JTTD1562B25
  • RS Stock No. 223-4704P
  • Mfr. Part No. RN73R1JTTD1562B25
Subtotal (100 units, supplied on a continuous strip)
SGD12.30(exc. GST)
SGD0.123/unit
In Stock
Panasonic ERJ2RK 35700 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.5 % Surface 0.1 W - ERJ2RKF3572X
  • RS Stock No. 785-283P
  • Mfr. Part No. ERJ2RKF3572X
Subtotal (10 units, supplied as a tape)
SGD0.11(exc. GST)
SGD0.011/unit
Currently unavailable
TE Connectivity RA73 27.4 kΩ, 0603 Thin Film Surface Mount Fixed Resistor 0.1 % Surface 0.5 W - RA73F1J27K4BTDF
  • RS Stock No. 238-9836P
  • Mfr. Part No. RA73F1J27K4BTDF
Subtotal (1 unit, supplied on a continuous strip)
SGD1.98(exc. GST)
SGD1.98/unit
Temporarily out of stock
Wurth Elektronik 1 mH 15 A Common Mode Choke 3.2 mΩ 300V
  • RS Stock No. 905-907
  • Mfr. Part No. 7848031501
Subtotal (90 units, in boxes of 90)
SGD1,173.51(exc. GST)
SGD13.039/unit
In Stock
Vishay 680 kΩ Metal Film Resistor 1 W 5 % PR01000106803JA100
  • RS Stock No. 683-5578
  • Mfr. Part No. PR01000106803JA100
Subtotal (10 units, in packs of 10)
SGD2.26(exc. GST)
SGD0.226/unit
Currently unavailable
Vishay MMA0204 750 Ω, 0204 Thin Film Surface Mount Resistor ±0.1 % 0.25 W
  • RS Stock No. 678-7801P
  • Mfr. Part No. MMA02040E7500BB100
Subtotal (5 units, supplied on a continuous strip)
SGD8.41(exc. GST)
SGD1.682/unit
In Stock
Wurth Elektronik 4.7 μF Capacitor 400V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 839-8728P
  • Mfr. Part No. 860021374008
Subtotal (10 units, supplied as a tape)
SGD6.18(exc. GST)
SGD0.618/unit
Last RS stock
RALTRON, 24MHz Clock Oscillator, ±50 ppm CMOS, TTL, 4-Pin Surface Mount
  • RS Stock No. 707-9662P
  • Mfr. Part No. CO4305-24.000-EXT
Subtotal (1 unit, supplied on a continuous strip)
SGD3.66(exc. GST)
SGD3.66/unit
Stocked by manufacturer
Phoenix Contact, VAL-MB Surge Arrester 1500V dc Maximum Voltage Rating 40 kA Maximum Surge Current Surge Arrester,
  • RS Stock No. 487-363
  • Mfr. Part No. 1683780
Subtotal (1 unit)
SGD696.47(exc. GST)
SGD696.47/unit
In Stock
Vishay 10 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 652-1705P
  • Mfr. Part No. VJ0402A100JXAAC
Subtotal (50 units, supplied on a continuous strip)
SGD10.45(exc. GST)
SGD0.209/unit
In Stock
KEMET 3.3 μF MnO2 Tantalum Capacitor 35V dc, Surface, T491 Series
  • RS Stock No. 648-0503P
  • Mfr. Part No. T491C335K035AT
Subtotal (10 units, supplied on a continuous strip)
SGD6.96(exc. GST)
SGD0.696/unit
In Stock
Panasonic ERJ PA2 22 kΩ, 0402 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.2 W
  • RS Stock No. 287-688P
  • Mfr. Part No. ERJPA2F2202X
Subtotal (10 units, supplied on a continuous strip)
SGD0.91(exc. GST)
SGD0.091/unit
In Stock
RS PRO Film Capacitor, ±10 %, 2 μF 440V ac, Stud Mount
  • RS Stock No. 196-4646
Subtotal (1 unit)
SGD12.85(exc. GST)
SGD12.85/unit
Temporarily out of stock
Vishay MKP 339 Film Capacitor X2, ±20 %, 4.7 μF 630 V dc 310V ac, Through Hole
  • RS Stock No. 173-3870
  • Mfr. Part No. BFC233920475
Subtotal (50 units, in boxes of 50)
SGD229.00(exc. GST)
SGD4.58/unit
1
8079
8180
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