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.

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169581 Products showing for Passive Components

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TE Connectivity 120 Ω Metal Oxide Resistor 1 W 5 %
  • RS Stock No. 161-6213
  • Mfr. Part No. ROX1SJ120R
Subtotal (1 box of 1000 units)
$81.00(exc. GST)
$0.081/unit
In Stock
TDK NTC Thermistor, NTC Type 100 Ω 2 mm 5.5 mm 5 mm
  • RS Stock No. 152-7135
  • Mfr. Part No. B57164K0101K000
Subtotal (1 pack of 10 units)
$9.38(exc. GST)
$0.938/unit
Currently unavailable
Nichicon YX Film Capacitor 100V ac 100 V dc, Radial
  • RS Stock No. 755-4387
  • Mfr. Part No. QYX2A334KTP
Subtotal (1 pack of 5 units)
$9.46(exc. GST)
$1.892/unit
Temporarily out of stock
Linx ANT-868-CW-QW-SMA Whip Omni-Directional Telemetry Antenna with SMA Connector, ISM Band
  • RS Stock No. 202-5818
  • Mfr. Part No. ANT-868-CW-QW-SMA
Subtotal (1 tray of 50 units)
$890.00(exc. GST)
$17.80/unit
In Stock
IQD 40MHz Oscillator HCMOS ±0.5 ppm Ceramic package LFTVXO009915BULK
  • RS Stock No. 146-4002
  • Mfr. Part No. LFTVXO009915
Subtotal (1 bag of 100 units)
$2,421.40(exc. GST)
$24.214/unit
Limited stock
RF Solutions PU-M4-433 Whip Omni-Directional Antenna with BNC Connector, ISM Band
  • RS Stock No. 451-0775
  • Mfr. Part No. PU-M4-433
Subtotal (1 unit)
$9.45(exc. GST)
$9.45/unit
In Stock
KEMET 22000 μF Capacitor 25V dc, Screw - ALS30A223DB025
  • RS Stock No. 173-5108
  • Mfr. Part No. ALS30A223DB025
Subtotal (1 bag of 50 units)
$967.75(exc. GST)
$19.355/unit
In Stock
Mersen, STPT2 Surge Protector 400V Maximum Voltage Rating 40 kA Maximum Surge Current Surge Protection Device
  • RS Stock No. 251-3638
  • Mfr. Part No. 83020184 / STPT2-40K275V-2P-TE-M GROUND MONITORING
Subtotal (1 unit)
$399.90(exc. GST)
$399.90/unit
Last RS stock
Mersen, STPT2-40 Surge Protector 275V ac Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 179-3058
  • Mfr. Part No. 83020106 / STPT2-40K275V-1P
Subtotal (1 unit)
$84.56(exc. GST)
$84.56/unit
In Stock
Mersen, STMT23 Surge Protector 275V ac Maximum Voltage Rating 20 kA Maximum Surge Current Type 2 Arrester, Type 3
  • RS Stock No. 179-3071
  • Mfr. Part No. 83230511 / STMT23-20K275V-SP-SM
Subtotal (1 unit)
$226.86(exc. GST)
$226.86/unit
Temporarily out of stock
Mersen, STMT23 Surge Protector 230V Maximum Voltage Rating 10 kA Maximum Surge Current Type 2+3/Class II+III
  • RS Stock No. 179-3083
  • Mfr. Part No. 83230512 / STMT23-10K320V-SP-SF
Subtotal (1 unit)
$163.11(exc. GST)
$163.11/unit
Limited stock
Nichicon 100 μF Capacitor 16V dc, Surface Solder - UWT1C101MCL1GB
  • RS Stock No. 739-2826
  • Mfr. Part No. UWT1C101MCL1GB
Subtotal (1 pack of 10 units)
$2.23(exc. GST)
$0.223/unit
Temporarily out of stock
KEMET, Surface Aluminium Capacitor Kit 80
  • RS Stock No. 124-8249
  • Mfr. Part No. SUP ENG KIT 01
Subtotal (1 unit)
$300.59(exc. GST)
$300.59/unit
Last RS stock
KOA RK73H 499 Ω, 2512 Thick Film Surface Mount Resistor ±1 % 1 W - RK73HW3ATTE4990F
  • RS Stock No. 123-4486
  • Mfr. Part No. RK73HW3ATTE4990F
Subtotal (1 bag of 50 units)
$19.55(exc. GST)
$0.391/unit
In Stock
Visaton Wirewound Surface Mount Inductor 1 mH
  • RS Stock No. 526-994
  • Mfr. Part No. 5014
Subtotal (1 unit)
$23.88(exc. GST)
$23.88/unit
In Stock
KEMET R76_125C Film Capacitor, ±5 %, 8.2 nF 2 kV dc 700V ac, Through Hole
  • RS Stock No. 192-8697
  • Mfr. Part No. R76UI182050H4J
Subtotal (1 pack of 20 units)
$20.00(exc. GST)
$1.00/unit
Last RS stock
Vishay, IHLP, 5050 Shielded Surface Mount Inductor with a Metal Composite Core, 4.7 μH ±20 % 12 A Idc
  • RS Stock No. 223-7299
  • Mfr. Part No. IHLP5050FDER4R7M01
Subtotal (1 unit)
$3.09(exc. GST)
$3.09/unit
In Stock
RS PRO Single Layer Ceramic Capacitor 1 nF 2kV dc ±10 % LR Dielectric, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 180-4818
Subtotal (1 bag of 1000 units)
$282.00(exc. GST)
$0.282/unit
Temporarily out of stock
STMicroelectronics, ECMF2-40A100N, EMI Filter IC, 20000V dc 10.7GHz, 100 mA, μQFN-6L, Surface
  • RS Stock No. 248-5832
  • Mfr. Part No. ECMF2-40A100N6
Subtotal (1 reel of 3000 units)
$1,542.00(exc. GST)
$0.514/unit
Temporarily out of stock
TDK B32923C Polypropylene Film Capacitor 1.5 μF 305V ac 305 V dc, Through Hole 2
  • RS Stock No. 241-6660
  • Mfr. Part No. B32923C3155M189
Subtotal (1 tape of 5 units)
$10.01(exc. GST)
$2.002/unit
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