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

163753 Products showing for Passive Components

Sort By
786 of 999+
Limited stock
Vishay 33000 μF Capacitor 40V dc, Screw - MAL210117333E3
  • RS Stock No. 280-3354
  • Mfr. Part No. MAL210117333E3
Subtotal (1 unit)
SGD78.85(exc. GST)
SGD78.85/unit
Temporarily out of stock
TE Connectivity 91 Ω Wirewound Through Hole Fixed Resistor 5 W 5 % FWFU5W91RJ
  • RS Stock No. 732-316P
  • Mfr. Part No. FWFU5W91RJ
Subtotal 10 units (supplied in a box)
SGD9.51(exc. GST)
SGD0.951/unit
In Stock
Vishay 1 Ω Metal Film Resistor 1 W 1 % CPF11R0000FKE14
  • RS Stock No. 830-6937
  • Mfr. Part No. CPF11R0000FKE14
Subtotal (1 unit)
SGD6.87(exc. GST)
SGD6.87/unit
Temporarily out of stock
Vishay MMA0204 47 kΩ, 0204 Thin Film Surface Mount Resistor ±0.1 % 0.25 W
  • RS Stock No. 678-7756P
  • Mfr. Part No. MMA02040E4702BB100
Subtotal 5 units (supplied on a continuous strip)
SGD8.41(exc. GST)
SGD1.682/unit
Last RS stock
Vishay 12.7 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft Round Shaft, ACCKMP1325NLP6
  • RS Stock No. 425-028
  • Mfr. Part No. ACCKMP1325NLP6
Subtotal (1 box of 80 units)
SGD572.48(exc. GST)
SGD7.156/unit
Temporarily out of stock
TDK, B82793 Unshielded Surface Mount Common Mode Choke with a Ferrite Core, 4.7 mH -30 → 50 % 400 mA Idc
  • RS Stock No. 496-2558
  • Mfr. Part No. B82793C0475N265
Subtotal (1 pack of 5 units)
SGD12.65(exc. GST)
SGD2.53/unit
In Stock
Panasonic ERJ2RK 5760 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.5 % Surface 0.1 W - ERJ2RKF5761X
  • RS Stock No. 785-160
  • Mfr. Part No. ERJ2RKF5761X
Subtotal (1 bag of 10 units)
SGD0.11(exc. GST)
SGD0.011/unit
In Stock
Panasonic 220 μF Capacitor 6.3V dc, Surface Solder 1000
  • RS Stock No. 565-649P
  • Mfr. Part No. EEEFK0J221AP
Subtotal 5 units (supplied as a tape)
SGD2.54(exc. GST)
SGD0.508/unit
In Stock
Wurth Elektronik, 7443, 1210 Shielded Surface Mount Inductor with a Iron Powder Core, 3.3 μH Surface Mount ±20 % 15.5 A
  • RS Stock No. 758-247P
  • Mfr. Part No. 7443310330
Subtotal 5 units (supplied on a continuous strip)
SGD11.86(exc. GST)
SGD2.372/unit
In Stock
Yageo RC_L 22 Ω, 0201 Thick Film Surface Mount Resistor ±1 % 0.05 W - RC0201FR-0722RL
  • RS Stock No. 198-7593
  • Mfr. Part No. RC0201FR-0722RL
Subtotal (1 tape of 100 units)
SGD1.10(exc. GST)
SGD0.011/unit
In Stock
Panasonic 4.7 μF Aluminium Electrolytic Capacitor 35V, Surface Solder - EEEFK1K4R7P Taping
  • RS Stock No. 781-506P
  • Mfr. Part No. EEEFK1K4R7P
Subtotal 5 units (supplied on a continuous strip)
SGD1.83(exc. GST)
SGD0.366/unit
In Stock
ROHM ESR03 8.2 Ω, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W
  • RS Stock No. 262-9975P
  • Mfr. Part No. ESR03EZPJ8R2
Subtotal 100 units (supplied on a continuous strip)
SGD4.10(exc. GST)
SGD0.041/unit
In Stock
TDK B32521 Film Capacitor 220 nF 63V ac 100 V dc, Through Hole 2
  • RS Stock No. 194-3523
  • Mfr. Part No. B32521C1224K000
Subtotal (1 pack of 25 units)
SGD12.20(exc. GST)
SGD0.488/unit
In Stock
Panasonic ERJUP6 220 Ω, 0805 Surface Mount Resistor ±1 % 0.5 W - ERJUP6F2200V
  • RS Stock No. 243-2276P
  • Mfr. Part No. ERJUP6F2200V
Subtotal 100 units (supplied on a continuous strip)
SGD9.00(exc. GST)
SGD0.09/unit
In Stock
Panasonic 47 μF Aluminium Polymer Capacitor 63V, Surface
  • RS Stock No. 434-026P
Subtotal 5 units (supplied on a continuous strip)
SGD19.01(exc. GST)
SGD3.802/unit
Currently unavailable
Wurth Elektronik, 48MHz SPXO Crystal Oscillator, ±50 ppm TTL, HCMOS, 4-Pin SMT 831019805
  • RS Stock No. 276-6780
  • Mfr. Part No. 831019805
Subtotal (1 pack of 5 units)
SGD20.17(exc. GST)
SGD4.034/unit
In Stock
Panasonic 1200 μF Capacitor 16V dc, Through Hole - EEUFC1C122S Radial Lead
  • RS Stock No. 571-684
  • Mfr. Part No. EEUFC1C122S
Subtotal (1 pack of 5 units)
SGD10.85(exc. GST)
SGD2.17/unit
In Stock
RS PRO 10 kΩ Metal Film Resistor 0.4 W 0.25 %
  • RS Stock No. 174-3040P
Subtotal 100 units (supplied in a box)
SGD11.90(exc. GST)
SGD0.119/unit
In Stock
Arcol Ohmite HVC 0.5 GΩ, 0603 Resistive Fixed Resistor 0.05 100 mW - HVC0603Z5006JET
  • RS Stock No. 760-287
  • Mfr. Part No. HVC0603Z5006JET
Subtotal (1 reel of 500 units)
SGD2,325.50(exc. GST)
SGD4.651/unit
In Stock
Panasonic E24 20200 Ω, Tape & Reel Thin-Film Technology Thin Film Resistor ±0.05 % Surface 0.1 W - ERA3ARW202V
  • RS Stock No. 783-034P
  • Mfr. Part No. ERA3ARW202V
Subtotal 10 units (supplied on a continuous strip)
SGD7.82(exc. GST)
SGD0.782/unit
1
786
8188
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