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

160805 Products showing for Passive Components

Sort By
803 of 999+
Currently unavailable
Murata 100 μF Multilayer Ceramic Capacitor, 4V dc, ±20 %, Surface
  • RS Stock No. 903-9622P
  • Mfr. Part No. GRM21BC80G107ME15
Subtotal 5 units (supplied on a continuous strip)
SGD3.53(exc. GST)
SGD0.706/unit
Currently unavailable
Panasonic 560 μF Capacitor 6.3V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 920-4958
  • Mfr. Part No. EEUFM0J561
Subtotal (1 bag of 200 units)
SGD59.40(exc. GST)
SGD0.297/unit
In Stock
KEMET 72 μH 35 A Common Mode Choke 0.00065 Ω 1000V
  • RS Stock No. 238-5435
  • Mfr. Part No. SCT25XV-350-2R4A003JV
Subtotal (1 unit)
SGD22.17(exc. GST)
SGD22.17/unit
In Stock
Arcol Ohmite TSM Series 10 Ω, TO-263 Thick Film Thick Film Resistor 1 % Surface Mount 55 W - TSM5510R0FE-TR
  • RS Stock No. 782-373
  • Mfr. Part No. TSM5510R0FE-TR
Subtotal (1 tape of 1 unit)
SGD24.44(exc. GST)
SGD24.44/tape
In Stock
Murata 2.7 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 723-6265
  • Mfr. Part No. GRM2165C1H272JA01D
Subtotal (1 pack of 100 units)
SGD5.10(exc. GST)
SGD0.051/unit
Temporarily out of stock
CHEMI-CON 200 μF Surface Polymer Capacitor, 16V
  • RS Stock No. 251-4849
  • Mfr. Part No. APXG160ARA221MF80G
Subtotal (1 reel of 900 units)
SGD533.70(exc. GST)
SGD0.593/unit
In Stock
TE Connectivity 250 Ω Metal Film Resistor 0.25 W 0.1 % UPF25B250RV
  • RS Stock No. 807-3734
  • Mfr. Part No. UPF25B250RV
Subtotal (1 unit)
SGD9.41(exc. GST)
SGD9.41/unit
Temporarily out of stock
KEMET 10 nF Multilayer Ceramic Capacitor, 2kV dc, ±10 %, Surface
  • RS Stock No. 170-0116
  • Mfr. Part No. C2225C103KGRACTU
Subtotal (1 reel of 1000 units)
SGD3,208.00(exc. GST)
SGD3.208/unit
In Stock
Panasonic ERJ 100 Ω, 0603 Thick Film Surface Mount Resistor ±0.5 % 0.1 W - ERJ3RBD1000V
  • RS Stock No. 810-2097
  • Mfr. Part No. ERJ3RBD1000V
Subtotal (1 bag of 100 units)
SGD5.70(exc. GST)
SGD0.057/unit
Currently unavailable
ROHM ESR03 11 kΩ, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W - ESR03EZPJ113
  • RS Stock No. 263-1171
  • Mfr. Part No. ESR03EZPJ113
Subtotal (1 reel of 5000 units)
SGD100.00(exc. GST)
SGD0.02/unit
Last RS stock
Arcol 10 mΩ Metal Strip Metal Film Fixed Resistor 1 W 1 %
  • RS Stock No. 487-9002P
  • Mfr. Part No. MSR-1 R01 F
Subtotal 5 units (supplied in a bag)
SGD22.54(exc. GST)
SGD4.508/unit
Last RS stock
Vitrohm 10 Ω Wirewound Through Hole Fixed Resistor 3 W 1 % CRP300FB-RK-10RK1
  • RS Stock No. 212-3553
  • Mfr. Part No. CRP300FB-RK-10RK1
Subtotal (1 box of 1000 units)
SGD463.00(exc. GST)
SGD0.463/unit
In Stock
Bourns CR1206 10 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CR1206-FX-1002ELF
  • RS Stock No. 740-9081
  • Mfr. Part No. CR1206-FX-1002ELF
Subtotal (1 pack of 50 units)
SGD1.45(exc. GST)
SGD0.029/unit
In Stock
RS PRO CR 1.1 Ω, 0603 Thick Film Surface Mount Resistor 1 % 0.1 W
  • RS Stock No. 183-9756P
Subtotal 1000 units (supplied on a reel)
SGD8.00(exc. GST)
SGD0.008/unit
Currently unavailable
TDK, SLF Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 1.5 mH ±20 % 480 mA Idc
  • RS Stock No. 786-9538
  • Mfr. Part No. SLF12555T-152MR29-PF
Subtotal (1 bag of 5 units)
SGD7.36(exc. GST)
SGD1.472/unit
Last RS stock
Arcol 25 mΩ Metal Strip Fixed Resistor 1 W 1 %
  • RS Stock No. 487-9030P
  • Mfr. Part No. MSR-1 R025 F
Subtotal 5 units (supplied in a bag)
SGD22.52(exc. GST)
SGD4.504/unit
In Stock
Nichicon 4700 μF Capacitor 50V dc, Snap-in - LGU1H472MELA
  • RS Stock No. 851-2129
  • Mfr. Part No. LGU1H472MELA
Subtotal (1 unit)
SGD5.78(exc. GST)
SGD5.78/unit
Currently unavailable
Wurth Elektronik, 16MHz SPXO Crystal Oscillator, ±50 ppm TTL, HCMOS, 4-Pin SMT
  • RS Stock No. 276-6736P
  • Mfr. Part No. 831018034
Subtotal 5 units (supplied on a continuous strip)
SGD20.17(exc. GST)
SGD4.034/unit
In Stock
Bourns, CAY10 47 Ω 5 % ISOL Resistor Array, 4 Resistors, 0.13 W total, 0804, Convex
  • RS Stock No. 529-4777P
  • Mfr. Part No. CAY10-470J4LF
Subtotal 50 units (supplied on a continuous strip)
SGD1.45(exc. GST)
SGD0.029/unit
Last RS stock
MERCURY 3.5795 MHz Crystal ±30 ppm HC-49-US 2-Pin 3.5 mm 10.7 mm 4.3mm
  • RS Stock No. 672-0242
  • Mfr. Part No. HUS-3.579545-18-30/50/4085
Subtotal (1 pack of 5 units)
SGD3.19(exc. GST)
SGD0.638/unit
1
803
8041
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