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.

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163885 Products showing for Passive Components

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Littelfuse, ZA Metal Oxide Varistor 1.62 nF 2.5 A, Clamping 1.24 kV, Varistor 33 V, Radial Leaded Ceramic Disc
  • RS Stock No. 800-7084
  • Mfr. Part No. V33ZA1P
Subtotal (1 pack of 25 units)
SGD6.15(exc. GST)
SGD0.246/unit
In Stock
ROHM SDR 200 kΩ, 0603 Thick Film Surface Mount Fixed Resistor 1 % 0.3 W - SDR03EZPF2003
  • RS Stock No. 261-9907
  • Mfr. Part No. SDR03EZPF2003
Subtotal (1 reel of 5000 units)
SGD195.00(exc. GST)
SGD0.039/unit
Temporarily out of stock
RS Better World
Vishay Power Factor Correction Capacitor 77 μF 20 kvar 24 kvar 3
  • RS Stock No. 187-5389
  • Mfr. Part No. PhMKP525.3.20,00-S84
Subtotal (1 unit)
SGD264.11(exc. GST)
SGD264.11/unit
In Stock
ROHM MCR 499 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - MCR03EZPFX4990
  • RS Stock No. 901-3541
  • Mfr. Part No. MCR03EZPFX4990
Subtotal (1 bag of 100 units)
SGD1.10(exc. GST)
SGD0.011/unit
Temporarily out of stock
Yageo 1 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 669-9000
  • Mfr. Part No. CC0603KRX7R0BB102
Subtotal (1 reel of 4000 units)
SGD72.00(exc. GST)
SGD0.018/unit
Last RS stock
TE Connectivity 27 Ω Metal Oxide Resistor 3 W 5 % ROX3SJ27R
  • RS Stock No. 214-2544
  • Mfr. Part No. ROX3SJ27R
Subtotal (1 pack of 10 units)
SGD3.51(exc. GST)
SGD0.351/unit
Currently unavailable
Panasonic 1200 μF Capacitor 10V dc, Through Hole - EEUFK1A122 Radial Lead
  • RS Stock No. 107-1079
  • Mfr. Part No. EEUFK1A122
Subtotal (1 bag of 200 units)
SGD155.40(exc. GST)
SGD0.777/unit
In Stock
Panasonic 470 μF Capacitor 16V dc, Through Hole - EEUFC1C471B Radial Lead
  • RS Stock No. 249-1337
  • Mfr. Part No. EEUFC1C471B
Subtotal (1 reel of 500 units)
SGD175.50(exc. GST)
SGD0.351/unit
Temporarily out of stock
Vishay 138 1 kΩ Rotary Potentiometer 1-Turns 1-Gang Bush, 138-0-0-102
  • RS Stock No. 850-9552
  • Mfr. Part No. 138-0-0-102
Subtotal (1 unit)
SGD229.53(exc. GST)
SGD229.53/unit
In Stock
Panasonic, ERJ 2RK Thick Film, Surface 122 Resistor Kit 24400, 10 Ω → 1 MΩ
  • RS Stock No. 864-4030
  • Mfr. Part No. ERJ2RK-KIT
Subtotal (1 kit)
SGD678.65(exc. GST)
SGD678.65/kit
In Stock
L-Com HG912YE-NF Rod RFID Antenna with Type N Connector, LoRa, Cellular
  • RS Stock No. 671-824
  • Mfr. Part No. HG912YE-NF
Subtotal (1 unit)
SGD205.44(exc. GST)
SGD205.44/unit
Last RS stock
Tokyo Cosmos Electric 2 mΩ Logarithmic Potentiometer 1-Turns 1-Gang, RV24YN20S A254
  • RS Stock No. 252-0620
  • Mfr. Part No. RV24YN20S A254
Subtotal (1 unit)
SGD11.19(exc. GST)
SGD11.19/unit
Unavailable
Kamaya 4.3kΩ, 0402 (1005M) Thick Film SMD Resistor ±0.5% 0.063W
  • RS Stock No. 114-746P
  • Mfr. Part No. RGC1/16SC432DTH
Subtotal 100 units (supplied on a continuous strip)
SGD3.00(exc. GST)
SGD0.03/unit
In Stock
Panasonic 4.7 μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 919-3615
  • Mfr. Part No. EEUFC1H4R7
Subtotal (1 bag of 200 units)
SGD37.80(exc. GST)
SGD0.189/unit
Temporarily out of stock
Abracon 32.768 kHz Crystal ± 20 ppm SMD 4-Pin 1.9 mm 6 mm 1.9mm
  • RS Stock No. 898-739
  • Mfr. Part No. AB26TRB-32.768KHZ-T
Subtotal (1 tape of 10 units)
SGD7.39(exc. GST)
SGD0.739/unit
In Stock
Sifam 18.9 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft Splined, 3/03/TPN130-006/237/233
  • RS Stock No. 299-5023
  • Mfr. Part No. 3/03/TPN130-006/237/233
Subtotal (1 pack of 5 units)
SGD6.24(exc. GST)
SGD1.248/unit
In Stock
Sifam 18.9 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft Splined, 3/03/TPN130-006/237/232
  • RS Stock No. 299-5051
  • Mfr. Part No. 3/03/TPN130-006/237/232
Subtotal (1 pack of 5 units)
SGD6.24(exc. GST)
SGD1.248/unit
In Stock
Bourns Model 51 10 kΩ Rotary Control Panel 1-Gang Panel Mount, 51SAD-U25-A15L
  • RS Stock No. 854-464
  • Mfr. Part No. 51SAD-U25-A15L
Subtotal (1 tray of 45 units)
SGD597.69(exc. GST)
SGD13.282/unit
Currently unavailable
Sonitron 95 dB Panel Continuous External 26 mm Buzzer 140 mm 5 V Min 80V Max
  • RS Stock No. 805-5244
  • Mfr. Part No. SRA 80C A
Subtotal (1 unit)
SGD86.07(exc. GST)
SGD86.07/unit
Temporarily out of stock
Panasonic, V Surge Absorber 16 nF 5 A, Clamping 1.815 kV, Varistor 18 V
  • RS Stock No. 720-9844
  • Mfr. Part No. ERZV10D180
Subtotal (1 pack of 10 units)
SGD5.64(exc. GST)
SGD0.564/unit
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