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

160281 Products showing for Passive Components

Sort By
1593 of 999+
In Stock
TDK YFF-SC, Feedthrough Capacitor 50V dc, 0402 100 pF, Surface
  • RS Stock No. 144-7124
  • Mfr. Part No. YFF15SC1H101MT000N
Subtotal (1 reel of 10000 units)
SGD340.00(exc. GST)
SGD0.034/unit
In Stock
Panasonic ERJP14 2.7 kΩ, 1210 Thick Film Surface Mount Resistor ±1 % 0.5 W
  • RS Stock No. 721-8191P
  • Mfr. Part No. ERJP14F2701U
Subtotal 5 units (supplied on a continuous strip)
SGD1.51(exc. GST)
SGD0.302/unit
In Stock
Wurth Elektronik 33 μF Surface Aluminium Polymer Capacitor, 63V dc
  • RS Stock No. 275-9448P
  • Mfr. Part No. 875575853003
Subtotal 1 unit (supplied on a continuous strip)
SGD3.53(exc. GST)
SGD3.53/unit
In Stock
Wurth Elektronik, WE-PMI, SMT Shielded Inductor with a Ferrite Core, 1 μH Shielded Construction ±20 % 1600 mA Idc Q:15
  • RS Stock No. 748-390
  • Mfr. Part No. 74479887210A
Subtotal (1 tape of 10 units)
SGD15.36(exc. GST)
SGD1.536/unit
Currently unavailable
KEMET 82 μF Surface Polymer Capacitor, 72.4V dc
  • RS Stock No. 209-5442
  • Mfr. Part No. A768MS826M1JLAV027
Subtotal (1 tape of 2 units)
SGD6.44(exc. GST)
SGD3.22/unit
In Stock
Nichicon 2200 μF Capacitor 63V dc, Snap-in
  • RS Stock No. 846-6950
  • Mfr. Part No. LGU1J222MELZ
Subtotal (1 pack of 2 units)
SGD12.26(exc. GST)
SGD6.13/unit
Temporarily out of stock
Panasonic 10 μF Capacitor 400V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 920-3071
  • Mfr. Part No. ECA2GHG100
Subtotal (1 bag of 200 units)
SGD134.00(exc. GST)
SGD0.67/unit
In Stock
Panasonic ERJ 2.7 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 184-8913P
  • Mfr. Part No. ERJ8ENF2701V
Subtotal 1000 units (supplied on a reel)
SGD44.00(exc. GST)
SGD0.044/unit
In Stock
Bourns PTA 10 kΩ Slide Slide Potentiometer 1-Gang Through Hole, PTA6043-2015DPB103
  • RS Stock No. 737-7795
  • Mfr. Part No. PTA6043-2015DPB103
Subtotal (1 unit)
SGD3.03(exc. GST)
SGD3.03/unit
In Stock
Broadcom 5V dc 512 ppr Pulse Optical Encoder Round Shaft, Through Hole
  • RS Stock No. 796-7878
  • Mfr. Part No. HEDS-9100#A00
Subtotal (1 unit)
SGD49.65(exc. GST)
SGD49.65/unit
In Stock
Bourns, BVRA0402 Varistor 1 A, Clamping 45 V
  • RS Stock No. 854-209
  • Mfr. Part No. BVRA0402-14PFR
Subtotal (1 tape of 100 units)
SGD8.90(exc. GST)
SGD0.089/unit
In Stock
Panasonic ERJ 15.8 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.13 W - ERJ6ENF15R8V
  • RS Stock No. 287-841
  • Mfr. Part No. ERJ6ENF15R8V
Subtotal (1 bag of 10 units)
SGD0.46(exc. GST)
SGD0.046/unit
In Stock
Panasonic ERJ H2G 5.6 Ω, 0402 Thick Film Surface Mount Resistor ±5 % 0.1 W
  • RS Stock No. 228-4539P
  • Mfr. Part No. ERJH2GJ5R6X
Subtotal 100 units (supplied on a continuous strip)
SGD6.70(exc. GST)
SGD0.067/unit
In Stock
RS PRO 220 Ω Metal Film Resistor 0.6 W 0.5 %
  • RS Stock No. 174-2757
Subtotal (1 pack of 100 units)
SGD9.00(exc. GST)
SGD0.09/unit
Temporarily out of stock
KEMET R53B Film Capacitor, ±10 %, 10 μF 800 V dc 350V ac, Through Hole
  • RS Stock No. 242-3665P
  • Mfr. Part No. R53BW51005000K
Subtotal 1 unit (supplied in a tray)
SGD11.85(exc. GST)
SGD11.85/unit
In Stock
ROHM MCRS Series 2400 kΩ, 0603 Thick Film Resistor ±1 % Surface 0.13 W - MCR03SEQPF2404
  • RS Stock No. 780-604P
  • Mfr. Part No. MCR03SEQPF2404
Subtotal 1000 units (supplied on a reel)
SGD15.00(exc. GST)
SGD0.015/unit
Currently unavailable
TE Connectivity RQ73 49.9 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.15 W - RQ73C1J49K9BTD
  • RS Stock No. 186-5499
  • Mfr. Part No. RQ73C1J49K9BTD
Subtotal (1 reel of 5000 units)
SGD1,620.00(exc. GST)
SGD0.324/unit
In Stock
TE Connectivity CRG 470 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRG1206F470K
  • RS Stock No. 134-7667
  • Mfr. Part No. CRG1206F470K
Subtotal (1 reel of 5000 units)
SGD75.00(exc. GST)
SGD0.015/unit
In Stock
Vishay 120 Ω Thin Film Resistor 0.4 W 1 %
  • RS Stock No. 151-397P
  • Mfr. Part No. MBA02040C1200FC100
Subtotal 100 units (supplied as a tape)
SGD34.90(exc. GST)
SGD0.349/unit
Temporarily out of stock
TDK Thermistor, NTC Type 100 kΩ 2 mm 3 mm 5 mm
  • RS Stock No. 167-8528
  • Mfr. Part No. B57164K0104J000
Subtotal (1 box of 2000 units)
SGD1,312.00(exc. GST)
SGD0.656/unit
1
1593
8015
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