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

161113 Products showing for Passive Components

Sort By
7805 of 999+
Stocked by manufacturer
Molex 203007-0001 Chip Multi-Band Antenna with SMT Connector, 1561 MHz, 5850 MHz, Bluetooth (BLE), ZigBee, WiFi
  • RS Stock No. 683-670
  • Mfr. Part No. 203007-0001
Subtotal (3000 units, on reels of 3000)
SGD3,426.00(exc. GST)
SGD1.142/unit
Currently unavailable
Panasonic ERA8V 1.8 kΩ, 1206 Thin Film Resistor 0.1 % 0.25 W - ERA8VEB1801V
  • RS Stock No. 259-6977
  • Mfr. Part No. ERA8VEB1801V
Subtotal (5000 units, on reels of 5000)
SGD2,175.00(exc. GST)
SGD0.435/unit
In Stock
Wurth Elektronik 22 μF Surface Aluminium Polymer Capacitor, 50V dc
  • RS Stock No. 275-9432P
  • Mfr. Part No. 875575744002
Subtotal (10 units, supplied on a continuous strip)
SGD18.91(exc. GST)
SGD1.891/unit
Last RS stock
TE Connectivity TLR 500 Ω, 2512 Metal Strip Surface Mount Resistor ±1 % Surface 2 W
  • RS Stock No. 771-7799P
  • Mfr. Part No. TLR3A20DR0005FTDG
Subtotal (5 units, supplied on a continuous strip)
SGD5.88(exc. GST)
SGD1.176/unit
Currently unavailable
Samsung Electro-Mechanics 10 pF Multilayer Ceramic Capacitor, 50V dc, ±0.25 pF, Surface
  • RS Stock No. 766-1407
  • Mfr. Part No. CL05C100CB5NNNC
Subtotal (10000 units, on reels of 10000)
SGD70.00(exc. GST)
SGD0.007/unit
Stocked by manufacturer
Phoenix Contact, VAL-SPP Surge Arrester 440V dc Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 488-280
  • Mfr. Part No. 1466617
Subtotal (1 unit)
SGD629.52(exc. GST)
SGD629.52/unit
Temporarily out of stock
Bourns, 4100R 1.2 kΩ 2 % ISOL Resistor Array, 8 Resistors, 2.25 W total, DIP, Solder
  • RS Stock No. 742-2268
  • Mfr. Part No. 4116R-1-122LF
Subtotal (5 units, in packs of 5)
SGD20.18(exc. GST)
SGD4.036/unit
In Stock
Panasonic ERJ1T 470 mΩ, 2512 Thick Film Surface Mount Resistor ±1 % 1 W - ERJ1TRQFR47U
  • RS Stock No. 721-6249
  • Mfr. Part No. ERJ1TRQFR47U
Subtotal (5 units, in packs of 5)
SGD6.70(exc. GST)
SGD1.34/unit
Currently unavailable
Nichicon 47 μF Capacitor 250V dc, Radial, Through Hole PC Pin
  • RS Stock No. 715-3186
  • Mfr. Part No. UPW2E470MHD
Subtotal (5 units, in packs of 5)
SGD15.99(exc. GST)
SGD3.198/unit
Temporarily out of stock
Murata Power Solutions, 5000 Surface Mount Common Mode Choke 470 μH -30 to 50 % 700 mA Idc
  • RS Stock No. 715-7083
  • Mfr. Part No. 50474C
Subtotal (1 unit)
SGD2.31(exc. GST)
SGD2.31/unit
Last RS stock
Rubycon 3.3 μF Capacitor 400V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 751-1131P
  • Mfr. Part No. 400BXC3R3MEFC10X12.5
Subtotal (10 units, supplied in a bag)
SGD7.14(exc. GST)
SGD0.714/unit
Temporarily out of stock
TDK Common Mode Choke Inductor Sample Kit
  • RS Stock No. 475-572
  • Mfr. Part No. B82733X0001
Subtotal (5 units, in packs of 5)
SGD370.25(exc. GST)
SGD74.05/unit
In Stock
RS PRO 75 dB Through Hole Continuous Internal Magnetic Buzzer Component 15.5 mm 9 V dc Min 22.5 mm 15.5mm 15V dc Max
  • RS Stock No. 457-059
Subtotal (5 units, in packs of 5)
SGD38.80(exc. GST)
SGD7.76/unit
Currently unavailable
VPG Foil Resistors 10 kΩ Metal Foil Resistor 0.6 W 0.01 %
  • RS Stock No. 763-7218P
  • Mfr. Part No. Y006210K0000T9L
Subtotal (1 unit, supplied in a bag)
SGD31.14(exc. GST)
SGD31.14/unit
In Stock
Panasonic ERJ6B 270 mΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.33 W - ERJ6BQFR27V
  • RS Stock No. 721-5583
  • Mfr. Part No. ERJ6BQFR27V
Subtotal (5 units, in packs of 5)
SGD1.02(exc. GST)
SGD0.204/unit
Temporarily out of stock
RS PRO 36.5 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W
  • RS Stock No. 716-9314
Subtotal (10000 units, on reels of 10000)
SGD30.00(exc. GST)
SGD0.003/unit
In Stock
Panasonic ERA 866 Ω, 0805 Metal Film Surface Mount Resistor ±0.1 % 0.13 W - ERA6AEB8660V
  • RS Stock No. 708-6118
  • Mfr. Part No. ERA6AEB8660V
Subtotal (5 units, in packs of 5)
SGD0.71(exc. GST)
SGD0.142/unit
In Stock
TE Connectivity 0.91 Ω Wirewound Fusible Resistor 5 W 5 % FWFU5WR91J
  • RS Stock No. 732-302P
  • Mfr. Part No. FWFU5WR91J
Subtotal (10 units, supplied in a box)
SGD10.95(exc. GST)
SGD1.095/unit
In Stock
Bourns CR 90.9 kΩ, 0402 Thick Film Resistor 1 % Surface 0.06 W
  • RS Stock No. 630-431P
  • Mfr. Part No. CR0402-FX-9092GLF
Subtotal (20 units, supplied on a continuous strip)
SGD0.14(exc. GST)
SGD0.007/unit
Currently unavailable
ROHM ESR03 1.5 kΩ, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W - ESR03EZPJ152
  • RS Stock No. 263-1210
  • Mfr. Part No. ESR03EZPJ152
Subtotal (5000 units, on reels of 5000)
SGD125.00(exc. GST)
SGD0.025/unit
1
7805
8056
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