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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Passive Components Kits
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163568 Products showing for Passive Components

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2334 of 999+
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TE Connectivity SMQ 22 Ω Wirewound Surface Mount Resistor 5 % Surface 1 W - SMQW122RJT
  • RS Stock No. 286-7512P
  • Mfr. Part No. SMQW122RJT
Subtotal 5 units (supplied on a continuous strip)
SGD4.53(exc. GST)
SGD0.906/unit
In Stock
Bourns 51 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, 51AAD-B24-A15L
  • RS Stock No. 789-9400
  • Mfr. Part No. 51AAD-B24-A15L
Subtotal (1 unit)
SGD13.72(exc. GST)
SGD13.72/unit
In Stock
Panasonic 100 μF Aluminium Polymer Capacitor 50V dc, Surface
  • RS Stock No. 211-0533
  • Mfr. Part No. EEHZF1H101P
Subtotal (1 tape of 2 units)
SGD6.79(exc. GST)
SGD3.395/unit
Currently unavailable
TE Connectivity 3.9 kΩ Metal Oxide Resistor 3 W 5 % ROX3SJ3K9
  • RS Stock No. 214-2831
  • Mfr. Part No. ROX3SJ3K9
Subtotal (1 pack of 10 units)
SGD3.36(exc. GST)
SGD0.336/unit
In Stock
Panasonic 100 μF Aluminium Polymer Capacitor 35V dc, Surface
  • RS Stock No. 211-0550
  • Mfr. Part No. EEHZF1V101P
Subtotal (1 tape of 2 units)
SGD4.86(exc. GST)
SGD2.43/unit
In Stock
TE Connectivity CRG 180 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRG0805F180R
  • RS Stock No. 223-0326
  • Mfr. Part No. CRG0805F180R
Subtotal (1 pack of 50 units)
SGD1.80(exc. GST)
SGD0.036/unit
In Stock
KYOCERA AVX 330 μF Surface Polymer Capacitor, 6.3V dc
  • RS Stock No. 186-4706
  • Mfr. Part No. TCQD337M006R0025E
Subtotal (1 reel of 500 units)
SGD622.50(exc. GST)
SGD1.245/unit
In Stock
Vishay CRCW 19.1 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - CRCW040219K1FKED
  • RS Stock No. 678-8879
  • Mfr. Part No. CRCW040219K1FKED
Subtotal (1 pack of 50 units)
SGD1.30(exc. GST)
SGD0.026/unit
In Stock
Yageo 1 μF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 198-5371P
  • Mfr. Part No. AC0805KKX7R7BB105
Subtotal 25 units (supplied on a continuous strip)
SGD3.575(exc. GST)
SGD0.143/unit
In Stock
Yageo RC 1 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±5 % 0.1 W - RC0603JR-071RL
  • RS Stock No. 242-4221
  • Mfr. Part No. RC0603JR-071RL
Subtotal (1 reel of 5000 units)
SGD40.00(exc. GST)
SGD0.008/unit
Temporarily out of stock
TDK 4.4 mH 600 mA Common Mode Choke 400 mΩ 250V
  • RS Stock No. 246-9852
  • Mfr. Part No. B82720S2601N040
Subtotal (1 unit)
SGD3.80(exc. GST)
SGD3.80/unit
In Stock
Wurth Elektronik 6.8 pF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 263-3868
  • Mfr. Part No. 885012005024
Subtotal (1 tape of 200 units)
SGD5.00(exc. GST)
SGD0.025/unit
Last RS stock
Wurth Elektronik, WE-XHMA, 8080 Shielded Surface Mount Inductor with a Composite Core Core, 10 μH ±20 % 5.8 A Idc
  • RS Stock No. 248-8278
  • Mfr. Part No. 78439358100
Subtotal (1 unit)
SGD6.71(exc. GST)
SGD6.71/unit
In Stock
Bourns CR 499 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CR0603-FX-4993ELF
  • RS Stock No. 246-3187
  • Mfr. Part No. CR0603-FX-4993ELF
Subtotal (1 tape of 100 units)
SGD0.90(exc. GST)
SGD0.009/unit
In Stock
KOA RN73R 6.2 kΩ, 0402 Metal Film Surface Mount Resistor ±1 % 0.06 W
  • RS Stock No. 253-3077P
  • Mfr. Part No. RN73R1ETTP6201F25
Subtotal 5 units (supplied on a continuous strip)
SGD1.40(exc. GST)
SGD0.28/unit
Temporarily out of stock
Yageo YC 10 kΩ, 0804 Thick Film Surface Mount Resistor Array ±5 % 62.5 mW - YC124-JR-0710KL
  • RS Stock No. 242-7236
  • Mfr. Part No. YC124-JR-0710KL
Subtotal (1 reel of 10000 units)
SGD160.00(exc. GST)
SGD0.016/unit
In Stock
ROHM MCRS Series 62 Ω, 0805 Thick Film Resistor ±1 % Surface 0.25 W - MCR10SEQPF62R0
  • RS Stock No. 780-439
  • Mfr. Part No. MCR10SEQPF62R0
Subtotal (1 tape of 500 units)
SGD12.50(exc. GST)
SGD0.025/unit
In Stock
Wurth Elektronik 10 nF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 242-1182
  • Mfr. Part No. 885012208026
Subtotal (1 pack of 50 units)
SGD6.75(exc. GST)
SGD0.135/unit
Last RS stock
Murata 40 MHz Crystal Unit ±30 ppm SMT 4-Pin 650 μm 1.6 mm 2mm
  • RS Stock No. 250-7796
  • Mfr. Part No. XRCGE40M000F3A1BR0
Subtotal (1 tape of 50 units)
SGD21.85(exc. GST)
SGD0.437/unit
In Stock
Bourns, CAT 10 Ω 5 % ISOL Array Resistor, 4 Resistors, 63 mW total, 0603, Concave
  • RS Stock No. 233-0744P
  • Mfr. Part No. CAT16-100J4LF
Subtotal 100 units (supplied on a continuous strip)
SGD3.50(exc. GST)
SGD0.035/unit
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