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

163876 Products showing for Passive Components

Sort By
1212 of 999+
Currently unavailable
TE Connectivity CPF 38.3 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - CPF0805B38R3E1
  • RS Stock No. 144-5355
  • Mfr. Part No. CPF0805B38R3E1
Subtotal (1 reel of 1000 units)
SGD177.00(exc. GST)
SGD0.177/unit
Currently unavailable
TE Connectivity RQ73 24.9 kΩ, 0805 Thin Film ±0.1 % 0.2 W - RQ73C2A24K9BTDF
  • RS Stock No. 187-2761
  • Mfr. Part No. RQ73C2A24K9BTDF
Subtotal (1 tape of 25 units)
SGD19.30(exc. GST)
SGD0.772/unit
Currently unavailable
Vishay CRCW 19.1 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - CRCW040219K1FKED
  • RS Stock No. 168-8324
  • Mfr. Part No. CRCW040219K1FKED
Subtotal (1 reel of 10000 units)
SGD140.00(exc. GST)
SGD0.014/unit
Temporarily out of stock
TE Connectivity HSC150S8K2J, 8.2 Ω 150 W Wirewound Chassis Mount Fixed Resistor ±5 %
  • RS Stock No. 599-408
  • Mfr. Part No. HSC150S8K2J
Subtotal (1 box of 20 units)
SGD761.34(exc. GST)
SGD38.067/unit
Last RS stock
TE Connectivity CRGH 330 kΩ, 0805 Thick Film Surface Mount Resistor ±5 % Surface 0.33 W
  • RS Stock No. 807-5774P
  • Mfr. Part No. CRGH0805J330K
Subtotal 100 units (supplied on a continuous strip)
SGD2.90(exc. GST)
SGD0.029/unit
Temporarily out of stock
Vishay 10 μF Capacitor 450V dc, SMD Surface Mount
  • RS Stock No. 196-7760P
  • Mfr. Part No. MAL215299704E3
Subtotal 2 units (supplied on a continuous strip)
SGD11.76(exc. GST)
SGD5.88/unit
In Stock
Vishay CRCW 3.9 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - CRCW04023K90FKED
  • RS Stock No. 182-3414
  • Mfr. Part No. CRCW04023K90FKED
Subtotal (1 reel of 1000 units)
SGD17.00(exc. GST)
SGD0.017/unit
Temporarily out of stock
Qnity Laird Cable Rod 17 mm
  • RS Stock No. 766-965
  • Mfr. Part No. 28R0669-000
Subtotal (1 unit)
SGD0.38(exc. GST)
SGD0.38/unit
In Stock
TE Connectivity 1.8 kΩ Carbon Film Resistor 0.5 W 5 %
  • RS Stock No. 132-551P
  • Mfr. Part No. CFR50J1K8
Subtotal 10 units (supplied as a tape)
SGD0.88(exc. GST)
SGD0.088/unit
Temporarily out of stock
TE Connectivity HSC100S22RJ, 22 Ω 100 W Wirewound Power Resistor 5 %
  • RS Stock No. 732-216
  • Mfr. Part No. HSC100S22RJ
Subtotal (1 unit)
SGD38.95(exc. GST)
SGD38.95/unit
In Stock
ROHM ESR25 680 Ω, 1210 Thick Film Resistor ±5 % 0.66 W - ESR25JZPJ681
  • RS Stock No. 263-7715
  • Mfr. Part No. ESR25JZPJ681
Subtotal (1 tape of 10 units)
SGD1.58(exc. GST)
SGD0.158/unit
Currently unavailable
Vishay CRCW 681 Ω, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.06 W - CRCW0402681RFKED
  • RS Stock No. 168-8503
  • Mfr. Part No. CRCW0402681RFKED
Subtotal (1 reel of 10000 units)
SGD80.00(exc. GST)
SGD0.008/unit
Temporarily out of stock
Vishay PATT 10 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.2 W - PATT0805E1002BGT5
  • RS Stock No. 818-3131P
  • Mfr. Part No. PATT0805E1002BGT5
Subtotal 5 units (supplied on a continuous strip)
SGD19.95(exc. GST)
SGD3.99/unit
Currently unavailable
TE Connectivity RQ73 130 Ω, 1206 Thin Film ±0.1 % 0.4 W - RQ73C2B130RBTDF
  • RS Stock No. 187-3159
  • Mfr. Part No. RQ73C2B130RBTDF
Subtotal (1 tape of 25 units)
SGD26.70(exc. GST)
SGD1.068/unit
In Stock
RS PRO 22 kΩ, 0603 Thin Film Resistor 0.1 % 0.03 W
  • RS Stock No. 243-0407P
Subtotal 100 units (supplied on a continuous strip)
SGD12.30(exc. GST)
SGD0.123/unit
In Stock
ROHM MCRS Series 43 kΩ, 0603 Thick Film Resistor ±1 % Surface 0.13 W - MCR03SEQPF4302
  • RS Stock No. 780-616P
  • Mfr. Part No. MCR03SEQPF4302
Subtotal 1000 units (supplied on a reel)
SGD15.00(exc. GST)
SGD0.015/unit
In Stock
Wurth Elektronik, WE-SPC Shielded Wirewound Surface Mount Inductor 3.3 μH
  • RS Stock No. 485-109P
  • Mfr. Part No. 74408942033
Subtotal 1 unit (supplied on a continuous strip)
SGD31.22(exc. GST)
SGD31.22/unit
Currently unavailable
TE Connectivity TLRP 15 mΩ, 2512 Current Sensing Surface Mount Resistor ±1 % Surface 3 W - TLRP3A30DR015FTE
  • RS Stock No. 231-3947
  • Mfr. Part No. TLRP3A30DR015FTE
Subtotal (1 reel of 4000 units)
SGD1,416.00(exc. GST)
SGD0.354/unit
In Stock
Panasonic Precision Thick Film Chip Resistors 2000 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.1 W
  • RS Stock No. 287-622P
  • Mfr. Part No. ERJ3EKF2001V
Subtotal 10 units (supplied on a continuous strip)
SGD0.33(exc. GST)
SGD0.033/unit
Temporarily out of stock
TE Connectivity NEOHM SMA-Q 10 kΩ, 0102 Thin Film Surface Mount Fixed Resistor 0.1 % Surface 0.3 W - SMA-Q0102BTCL10K
  • RS Stock No. 590-214
  • Mfr. Part No. SMA-Q0102BTCL10K
Subtotal (1 reel of 3000 units)
SGD5,148.00(exc. GST)
SGD1.716/unit
1
1212
8194
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