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

163777 Products showing for Passive Components

Sort By
830 of 999+
In Stock
KEMET 2.14 mH 14 A Choke 8.45 mΩ
  • RS Stock No. 735-379
  • Mfr. Part No. SCF23X-140-1R5A013JV
Subtotal (1 unit)
SGD8.89(exc. GST)
SGD8.89/unit
Temporarily out of stock
Panasonic ERJ 180 Ω, 0805 Thick Film Surface Mount Resistor ±0.5 % 0.1 W - ERJ6RBD1800V
  • RS Stock No. 810-1735
  • Mfr. Part No. ERJ6RBD1800V
Subtotal (1 bag of 100 units)
SGD8.60(exc. GST)
SGD0.086/unit
In Stock
KYOCERA AVX 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Through Hole Radial
  • RS Stock No. 144-1932
  • Mfr. Part No. SR205C104KAR
Subtotal (1 bag of 50 units)
SGD17.70(exc. GST)
SGD0.354/unit
Currently unavailable
Vishay CRCW 2.43 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.1 W - CRCW06032K43FKEA
  • RS Stock No. 679-0138
  • Mfr. Part No. CRCW06032K43FKEA
Subtotal (1 pack of 50 units)
SGD1.20(exc. GST)
SGD0.024/unit
In Stock
Murata, LQW, 0603 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 120 nH ±5 % 180 mA Idc Q:32
  • RS Stock No. 724-2863
  • Mfr. Part No. LQW18ANR12J00D
Subtotal (1 pack of 10 units)
SGD1.26(exc. GST)
SGD0.126/unit
Last RS stock
TE Connectivity SM 200 Ω, 5329 Wirewound Surface Mount Resistor ±5 % Surface 5 W - SMW5200RJT
  • RS Stock No. 807-7522
  • Mfr. Part No. SMW5200RJT
Subtotal (1 pack of 5 units)
SGD12.20(exc. GST)
SGD2.44/unit
In Stock
Vishay PA16 47 kΩ Knob Potentiometer Potentiometer 1-Turns 1-Gang Panel Mount, PA16NP473MAB15
  • RS Stock No. 733-029
  • Mfr. Part No. PA16NP473MAB15
Subtotal (1 unit)
SGD26.91(exc. GST)
SGD26.91/unit
Temporarily out of stock
Panasonic ERJ 43 Ω, 0402 Thick Film Surface Mount Resistor ±0.5 % 0.06 W - ERJ2RKD43R0X
  • RS Stock No. 807-2315
  • Mfr. Part No. ERJ2RKD43R0X
Subtotal (1 bag of 100 units)
SGD6.00(exc. GST)
SGD0.06/unit
Temporarily out of stock
Bourns, 2035 90 V dc 5 kA, Surface 2 Electrode Gas Discharge Tube Gas Discharge Tube
  • RS Stock No. 172-7182
  • Mfr. Part No. 2035-09-SM-RPLF
Subtotal (1 reel of 1500 units)
SGD1,161.00(exc. GST)
SGD0.774/unit
Limited stock
Vishay, IDCP2218-01 Unshielded 100 μH Drum Core 20% 520 mA Idc
  • RS Stock No. 697-463
  • Mfr. Part No. IDCP2218ER101M01
Subtotal (1 tape of 1 unit)
SGD0.39(exc. GST)
SGD0.39/tape
Currently unavailable
Vishay TNPW 0.15 mΩ, 1206 Thin Film, Thin Film ±0.1 % Surface 0.4 W - TNPW1206150KBEEA
  • RS Stock No. 262-0873P
  • Mfr. Part No. TNPW1206150KBEEA
Subtotal 10 units (supplied on a continuous strip)
SGD4.13(exc. GST)
SGD0.413/unit
Last RS stock
Nichicon 3900 μF Capacitor 10V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 715-2495
  • Mfr. Part No. UPW1A392MHD
Subtotal (1 pack of 5 units)
SGD11.61(exc. GST)
SGD2.322/unit
In Stock
Panasonic ERJU03 330 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJU03F3300V
  • RS Stock No. 873-9425
  • Mfr. Part No. ERJU03F3300V
Subtotal (1 bag of 100 units)
SGD4.90(exc. GST)
SGD0.049/unit
Temporarily out of stock
Schaffner, FN2010 10 A 250V ac/dc 0Hz, 400 Hz, Chassis Mount EMI Filter, Fast-On 1 Phase
  • RS Stock No. 170-4996
  • Mfr. Part No. FN2010-10-06
Subtotal (1 box of 60 units)
SGD1,176.60(exc. GST)
SGD19.61/unit
In Stock
TE Connectivity CPF 38.3 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - CPF0402B38K3E1
  • RS Stock No. 701-5393
  • Mfr. Part No. CPF0402B38K3E1
Subtotal (1 pack of 10 units)
SGD5.11(exc. GST)
SGD0.511/unit
In Stock
Vishay MKP 1847 Film Capacitor, ±5 %, 30 μF 350V ac, Through Hole
  • RS Stock No. 736-9117
  • Mfr. Part No. MKP1847630354Y5
Subtotal (1 unit)
SGD46.31(exc. GST)
SGD46.31/unit
Temporarily out of stock
Wurth Elektronik 100 μF Capacitor 10V dc, Surface Solder
  • RS Stock No. 839-5202
  • Mfr. Part No. 865250249006
Subtotal (1 pack of 5 units)
SGD5.18(exc. GST)
SGD1.036/unit
Last RS stock
TE Connectivity CPF 2.49 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0402B2K49E1
  • RS Stock No. 701-5276
  • Mfr. Part No. CPF0402B2K49E1
Subtotal (1 pack of 10 units)
SGD3.57(exc. GST)
SGD0.357/unit
In Stock
Arcol Ohmite HVC 50000 kΩ, 0603 Thick Film Surface Mount Fixed Resistor 1 % 0.1 W - HVC0603T5005FET
  • RS Stock No. 263-4262P
  • Mfr. Part No. HVC0603T5005FET
Subtotal 1 unit (supplied on a continuous strip)
SGD3.22(exc. GST)
SGD3.22/unit
In Stock
Panasonic 47 μF Polymer Capacitor 10V dc, POSCAP TPE Series
  • RS Stock No. 795-5691
  • Mfr. Part No. 10TPE47MAZB
Subtotal (1 pack of 5 units)
SGD10.26(exc. GST)
SGD2.052/unit
1
830
8189
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