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

163841 Products showing for Passive Components

Sort By
2175 of 999+
Temporarily out of stock
Panasonic 680 μF Capacitor 80V dc, Radial, Through Hole - EEUFS1K681 Radial Lead
  • RS Stock No. 176-3807
  • Mfr. Part No. EEUFS1K681
Subtotal (1 bag of 100 units)
SGD211.70(exc. GST)
SGD2.117/unit
In Stock
Abracon, ASPI-0630LR Shielded Surface Mount Inductor with a Iron Core, 2.2 μH Flat Wire Winding ±20 % 8 A Idc
  • RS Stock No. 240-0919
  • Mfr. Part No. ASPI-0630LR-2R2M-T15
Subtotal (1 pack of 25 units)
SGD20.95(exc. GST)
SGD0.838/unit
Currently unavailable
Panasonic 680 μF Capacitor 16V dc, Radial, Through Hole - EEUFK1C681 Radial Lead
  • RS Stock No. 571-505
  • Mfr. Part No. EEUFK1C681
Subtotal (1 pack of 5 units)
SGD6.41(exc. GST)
SGD1.282/unit
Currently unavailable
Vishay WSHP2818 10 mΩ, 2818 Metal Strip Surface Mount Resistor ±1 % 10 W - WSHP2818R0100FEB
  • RS Stock No. 138-9324
  • Mfr. Part No. WSHP2818R0100FEB
Subtotal (1 reel of 1000 units)
SGD1,171.00(exc. GST)
SGD1.171/unit
In Stock
RS PRO Omni-Directional, Lead Wire 4 mm Microphone -42dB
  • RS Stock No. 737-618
Subtotal (1 pack of 10 units)
SGD34.73(exc. GST)
SGD3.473/unit
In Stock
Taoglas TG.09.0113W Omni-Directional Antenna with SMA Connector
  • RS Stock No. 784-543
  • Mfr. Part No. TG.09.0113W
Subtotal (1 unit)
SGD23.43(exc. GST)
SGD23.43/unit
In Stock
KEMET C4AF Film Capacitor, 10 %, 5 μF 600 V dc 600V ac, Through Hole
  • RS Stock No. 258-4274
  • Mfr. Part No. C4AFBBW4500F3MK
Subtotal (1 unit)
SGD13.43(exc. GST)
SGD13.43/unit
Last RS stock
Vitrohm 22 Ω Wirewound Through Hole Fixed Resistor 2 W 5 %
  • RS Stock No. 212-3516P
  • Mfr. Part No. CRP200DT-52-22RAA
Subtotal 5 units (supplied in a box)
SGD10.73(exc. GST)
SGD2.146/unit
In Stock
Wurth Elektronik, WE-MAPI, 3012 Shielded Surface Mount Inductor with a Composite Iron Powder Core, 5.6 μH ±20 % 1 A Idc
  • RS Stock No. 792-2783
  • Mfr. Part No. 74438334056
Subtotal (1 unit)
SGD1.65(exc. GST)
SGD1.65/unit
In Stock
Wurth Elektronik 3029080080100 Shielding Strip With Solder 8 mm x 10mm x 8 mm
  • RS Stock No. 212-0512
  • Mfr. Part No. 3029080080100
Subtotal (1 tape of 10 units)
SGD14.75(exc. GST)
SGD1.475/unit
Last RS stock
TE Connectivity TLRP 120 mΩ, 2512 Current Sensing Surface Mount Resistor ±1 % Surface 3 W - TLRP3A30DR120FTE
  • RS Stock No. 231-3993
  • Mfr. Part No. TLRP3A30DR120FTE
Subtotal (1 tape of 10 units)
SGD6.89(exc. GST)
SGD0.689/unit
In Stock
Panasonic ERJ B1 270 Ω, 1020 Thick Film Resistor ±1 % 1 W - ERJB1AF271U
  • RS Stock No. 228-0491
  • Mfr. Part No. ERJB1AF271U
Subtotal (1 tape of 20 units)
SGD13.00(exc. GST)
SGD0.65/unit
In Stock
Wurth Elektronik Surface Mount Multi-Turn Ratio coupled Inductor Coupled Inductor Iron Oxide Core, 22 μH
  • RS Stock No. 258-5716
  • Mfr. Part No. 744889015220
Subtotal (1 unit)
SGD3.17(exc. GST)
SGD3.17/unit
In Stock
Murata, LQH, 1210 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 4.7 μH ±30 % 1 A Idc
  • RS Stock No. 786-6894
  • Mfr. Part No. LQH32PN4R7NN0L
Subtotal (1 bag of 10 units)
SGD2.65(exc. GST)
SGD0.265/unit
In Stock
Abracon 20 MHz Crystal ±20 ppm Surface Mount 1.1 mm 5 mm 3.2mm
  • RS Stock No. 171-0588P
  • Mfr. Part No. ABM3B-20.000MHZ-B2-T
Subtotal 10 units (supplied on a continuous strip)
SGD9.24(exc. GST)
SGD0.924/unit
In Stock
ROHM MCRS Series 160 kΩ, 0805 Thick Film Resistor ±1 % Surface 0.25 W - MCR10SEQPF1603
  • RS Stock No. 780-421
  • Mfr. Part No. MCR10SEQPF1603
Subtotal (1 tape of 500 units)
SGD12.50(exc. GST)
SGD0.025/unit
In Stock
Panasonic 2200 μF Capacitor 35V dc, Through Hole Radial Lead
  • RS Stock No. 240-3937
  • Mfr. Part No. EEUFR1V222B
Subtotal (1 pack of 5 units)
SGD16.43(exc. GST)
SGD3.286/unit
In Stock
Panasonic 100 μF Capacitor 10V dc, Surface Solder - EEEFN1A101UR 1000
  • RS Stock No. 204-3375
  • Mfr. Part No. EEEFN1A101UR
Subtotal (1 pack of 20 units)
SGD7.12(exc. GST)
SGD0.356/unit
Currently unavailable
Panasonic ERJUP8 56 kΩ, 1206 Thick Film Surface Mount Fixed Resistor ±1 % 0.66 W - ERJUP8F5602V
  • RS Stock No. 242-6600
  • Mfr. Part No. ERJUP8F5602V
Subtotal (1 reel of 5000 units)
SGD340.00(exc. GST)
SGD0.068/unit
Currently unavailable
Vishay TNPW 0.01 mΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - TNPW040210K0BETD
  • RS Stock No. 262-0601
  • Mfr. Part No. TNPW040210K0BETD
Subtotal (1 reel of 10000 units)
SGD3,790.00(exc. GST)
SGD0.379/unit
1
2175
8193
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