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

161046 Products showing for Passive Components

Sort By
1457 of 999+
Last RS stock
RS Better World
Vishay TNPW 0.0047 mΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.13 W - TNPW06034K70BEEA
  • RS Stock No. 262-0769
  • Mfr. Part No. TNPW06034K70BEEA
Subtotal (1 reel of 5000 units)
SGD950.00(exc. GST)
SGD0.19/unit
Temporarily out of stock
CHEMI-CON 330 μF Capacitor 400V dc, Snap-in - EKMQ401VSN331MQ45S
  • RS Stock No. 841-4725
  • Mfr. Part No. EKMQ401VSN331MQ45S
Subtotal (1 unit)
SGD7.97(exc. GST)
SGD7.97/unit
Stocked by manufacturer
TE Connectivity Holsworthy RP73 4.75 kΩ, 1206 Thin Film Precision Resistor 0.1 % Surface 0.25 W - 7-1879260-3
  • RS Stock No. 679-096
  • Mfr. Part No. 7-1879260-3
Subtotal (1 reel of 500 units)
SGD631.50(exc. GST)
SGD1.263/unit
In Stock
Bourns, 4600X 4.7 kΩ 2 % ISOL Resistor Array, 4 Resistors, 1 W total, SIP, Solder
  • RS Stock No. 522-4015
  • Mfr. Part No. 4608X-102-472LF
Subtotal (1 pack of 25 units)
SGD5.55(exc. GST)
SGD0.222/unit
Temporarily out of stock
KEMET 47 mF Supercapacitor -20 to 80 % Tolerance, FMR 5.5V dc, Through Hole
  • RS Stock No. 188-2087P
  • Mfr. Part No. FMR0H473ZF
Subtotal 2 units (supplied in a bag)
SGD8.82(exc. GST)
SGD4.41/unit
Temporarily out of stock
KEMET R46 Film Capacitor X2, ±10 %, 470 nF 310 V dc 310V ac, Through Hole
  • RS Stock No. 172-6598
  • Mfr. Part No. R463I347050M1K
Subtotal (1 bag of 350 units)
SGD192.50(exc. GST)
SGD0.55/unit
In Stock
Murata, LQW, 0402 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 100 nH ±5 % 120 mA Idc Q:20
  • RS Stock No. 792-6498
  • Mfr. Part No. LQW15ANR10J00D
Subtotal (1 bag of 10 units)
SGD1.17(exc. GST)
SGD0.117/unit
In Stock
TDK, B82462-G4 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 1 μH ±20 % 3.4 A Idc
  • RS Stock No. 495-8098P
  • Mfr. Part No. B82462G4102M000
Subtotal 5 units (supplied on a continuous strip)
SGD9.75(exc. GST)
SGD1.95/unit
In Stock
Panasonic 47 μF Capacitor 100V dc, Through Hole - ECA2AHG470 Radial Lead
  • RS Stock No. 108-4108
  • Mfr. Part No. ECA2AHG470
Subtotal (1 bag of 200 units)
SGD84.60(exc. GST)
SGD0.423/unit
In Stock
RS PRO 1 kΩ Metal Film Resistor 1 W 0.5 %
  • RS Stock No. 174-3100P
Subtotal 100 units (supplied in a box)
SGD16.50(exc. GST)
SGD0.165/unit
In Stock
RS PRO, 4.7 Ω 200 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 175-2478
Subtotal (1 unit)
SGD68.22(exc. GST)
SGD68.22/unit
In Stock
Panasonic E96 11500 Ω, Tape & Reel Thin-Film Technology Thin Film Resistor ±0.1 % Surface 0.1 W - ERA3AEB1152V
  • RS Stock No. 782-755P
  • Mfr. Part No. ERA3AEB1152V
Subtotal 10 units (supplied on a continuous strip)
SGD0.64(exc. GST)
SGD0.064/unit
In Stock
Vishay 68 Ω Wirewound Resistor 11 W 5 % RWM084568R0JB25E1
  • RS Stock No. 167-9412
  • Mfr. Part No. RWM084568R0JB25E1
Subtotal (1 box of 50 units)
SGD957.05(exc. GST)
SGD19.141/unit
In Stock
ECS Inc International, 50MHz XO Oscillator, ±50 ppm HCMOS, 4-Pin Surface Mount
  • RS Stock No. 301-163P
  • Mfr. Part No. ECS-3953M-500-BN-TR
Subtotal 1 unit (supplied on a continuous strip)
SGD2.79(exc. GST)
SGD2.79/unit
Temporarily out of stock
Vishay MMA0204 2 kΩ, 0204 Thin Film Surface Mount Resistor ±0.1 % 0.25 W - MMA02040E2001BB100
  • RS Stock No. 172-5455
  • Mfr. Part No. MMA02040E2001BB100
Subtotal (1 reel of 3000 units)
SGD1,848.00(exc. GST)
SGD0.616/unit
Temporarily out of stock
KEMET 22000 μF Capacitor 100V dc, Screw - PEH200PO5220MU2
  • RS Stock No. 189-850P
  • Mfr. Part No. PEH200PO5220MU2
Subtotal 1 unit (supplied in a box)
SGD142.47(exc. GST)
SGD142.47/unit
Last RS stock
TE Connectivity CRGH 3.9 kΩ, 1206 Thick Film Surface Mount Resistor ±5 % Surface 0.5 W - CRGH1206J3K9
  • RS Stock No. 807-1233
  • Mfr. Part No. CRGH1206J3K9
Subtotal (1 bag of 100 units)
SGD5.00(exc. GST)
SGD0.05/unit
Last RS stock
TE Connectivity 3430 1 kΩ, 0612 Thick Film Surface Mount Fixed Resistor 1 % Surface 1.5 W - 3430B2F10K0TD
  • RS Stock No. 274-7157
  • Mfr. Part No. 3430B2F10K0TD
Subtotal (1 reel of 5000 units)
SGD540.00(exc. GST)
SGD0.108/unit
Temporarily out of stock
Vishay 4.7 MΩ Metal Glaze Resistor 0.25 W 5 % VR25000004704JA100
  • RS Stock No. 166-7825
  • Mfr. Part No. VR25000004704JA100
Subtotal (1 box of 1000 units)
SGD122.00(exc. GST)
SGD0.122/unit
In Stock
Vishay 750 Ω Metal Film Through Hole Fixed Resistor 1 W 1 % MBE04140C7500FC100
  • RS Stock No. 607-784
  • Mfr. Part No. MBE04140C7500FC100
Subtotal (1 unit)
SGD0.56(exc. GST)
SGD0.56/unit
1
1457
8053
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