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

162139 Products showing for Passive Components

Sort By
1802 of 999+
Temporarily out of stock
Wurth Elektronik Openable, Diameter 12.5 mm Ferrite Sleeve, Apertures: 1 Key 31.5 mm 28.3 mm 35 mm
  • RS Stock No. 195-3892
  • Mfr. Part No. 74271622
Subtotal (1 tray of 52 units)
SGD466.96(exc. GST)
SGD8.98/unit
In Stock
Yageo 100 nF Multilayer Ceramic Capacitor, 200V dc, ±10 %, Surface
  • RS Stock No. 199-2385
  • Mfr. Part No. CC1210KKX7RABB104
Subtotal (1 tape of 10 units)
SGD4.99(exc. GST)
SGD0.499/unit
In Stock
RS PRO 100 μF Capacitor 250V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 711-1946
Subtotal (1 pack of 5 units)
SGD10.10(exc. GST)
SGD2.02/unit
In Stock
Yageo RC_L 40.2 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - RC0402FR-0740K2L
  • RS Stock No. 198-7788
  • Mfr. Part No. RC0402FR-0740K2L
Subtotal (1 tape of 100 units)
SGD0.70(exc. GST)
SGD0.007/unit
Temporarily out of stock
Panasonic ERJPC3 51.1 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.5 % Surface 0.2 W - ERJPC3D5112V
  • RS Stock No. 789-037P
  • Mfr. Part No. ERJPC3D5112V
Subtotal 10 units (supplied on a continuous strip)
SGD0.73(exc. GST)
SGD0.073/unit
Currently unavailable
KEMET 10 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 152-6048
  • Mfr. Part No. C0805X106K8RACTU
Subtotal (1 reel of 2500 units)
SGD1,400.00(exc. GST)
SGD0.56/unit
Currently unavailable
Sonitron 94 dB Panel Mount Slow Pulse External 44 mm Buzzer 140 mm 5 V dc Min 80V dc Max
  • RS Stock No. 805-5247
  • Mfr. Part No. SRA 80I A1
Subtotal (1 unit)
SGD84.67(exc. GST)
SGD84.67/unit
In Stock
Wurth Elektronik Ferrite Bead 0.5 mm (Surface) (0402) (EMI Suppression), 220 Ω impedance at 100 MHz
  • RS Stock No. 163-4586
  • Mfr. Part No. 742792780
Subtotal (1 reel of 10000 units)
SGD1,370.00(exc. GST)
SGD0.137/unit
Temporarily out of stock
Yageo RC 15 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - RC1206FR-0715RL
  • RS Stock No. 199-5787
  • Mfr. Part No. RC1206FR-0715RL
Subtotal (1 reel of 5000 units)
SGD55.00(exc. GST)
SGD0.011/unit
Last RS stock
Rubycon 33 μF Capacitor 35V dc, Through Hole - 35YXM33MEFC5X11
  • RS Stock No. 704-8071
  • Mfr. Part No. 35YXM33MEFC5X11
Subtotal (1 pack of 25 units)
SGD6.30(exc. GST)
SGD0.252/unit
In Stock
Vishay 10 μF MnO2 Tantalum Capacitor 10V dc, Surface, TR3 Series
  • RS Stock No. 684-5086
  • Mfr. Part No. TR3A106K010C0900
Subtotal (1 pack of 10 units)
SGD8.96(exc. GST)
SGD0.896/unit
Last RS stock
Vishay CRCW 16 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW080516K0FKEA
  • RS Stock No. 169-4531
  • Mfr. Part No. CRCW080516K0FKEA
Subtotal (1 reel of 5000 units)
SGD85.00(exc. GST)
SGD0.017/unit
In Stock
Yageo 1 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 198-5360
  • Mfr. Part No. AC0805JRNPO9BN102
Subtotal (1 tape of 20 units)
SGD1.70(exc. GST)
SGD0.085/unit
Last RS stock
TE Connectivity RQ73 20 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.2 W - RQ73C2A20KBTDF
  • RS Stock No. 187-2740
  • Mfr. Part No. RQ73C2A20KBTDF
Subtotal (1 tape of 25 units)
SGD25.45(exc. GST)
SGD1.018/unit
Temporarily out of stock
TE Connectivity 3520 10 kΩ, 2512 Thick Film Surface Mount Resistor ±5 % 1 W - 352010KJT
  • RS Stock No. 163-8707
  • Mfr. Part No. 352010KJT
Subtotal (1 reel of 4000 units)
SGD488.00(exc. GST)
SGD0.122/unit
In Stock
Bourns CRA 10 mΩ, 2512 Metal Strip Surface Mount Resistor ±1 % 3 W - CRA2512-FZ-R010ELF
  • RS Stock No. 167-4476
  • Mfr. Part No. CRA2512-FZ-R010ELF
Subtotal (1 reel of 4000 units)
SGD1,372.00(exc. GST)
SGD0.343/unit
In Stock
Panasonic ERA 3A 30 kΩ, 0603 Metal Film Surface Mount Resistor ±0.05 % 0.1 W - ERA3ARW303V
  • RS Stock No. 180-9793
  • Mfr. Part No. ERA3ARW303V
Subtotal (1 reel of 500 units)
SGD242.00(exc. GST)
SGD0.484/unit
In Stock
Yageo 3.3 kΩ Carbon Film Carbon Film Fixed Resistor 0.25 W 5 % CFR-25JT-52-3K3
  • RS Stock No. 199-1807
  • Mfr. Part No. CFR-25JT-52-3K3
Subtotal (1 tape of 200 units)
SGD6.60(exc. GST)
SGD0.033/unit
Currently unavailable
Vishay 120 kΩ Metal Film Metal Film Resistor 1 W 5 %
  • RS Stock No. 251-3661
  • Mfr. Part No. PR01000101203JR500
Subtotal (1 reel of 5000 units)
SGD420.00(exc. GST)
SGD0.084/unit
In Stock
TE Connectivity 1 kΩ Wirewound Resistor 7 W 5 % ER581K0JT
  • RS Stock No. 199-6564
  • Mfr. Part No. ER581K0JT
Subtotal (1 pack of 5 units)
SGD14.15(exc. GST)
SGD2.83/unit
1
1802
8107
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