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
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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

162694 Products showing for Passive Components

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TE Connectivity 3.9 Ω Metal Oxide Resistor 1 W 5 % ROX1SJ3R9
  • RS Stock No. 214-0813
  • Mfr. Part No. ROX1SJ3R9
Subtotal (1 pack of 10 units)
SGD1.87(exc. GST)
SGD0.187/unit
In Stock
TE Connectivity 10 kΩ Thin Film Resistor 0.25 W 0.1 %
  • RS Stock No. 137-2751
  • Mfr. Part No. 1622796-6
Subtotal (1 pack of 10 units)
SGD9.34(exc. GST)
SGD0.934/unit
Currently unavailable
Bourns, SRP5030T, 5030 Shielded Surface Mount Inductor with a Powdered Iron Core, 680 nH 8.5 A Idc
  • RS Stock No. 776-3963
  • Mfr. Part No. SRP5030T-R68M
Subtotal (1 bag of 5 units)
SGD6.95(exc. GST)
SGD1.39/unit
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Bourns, SRN8040TA, 0804 Shielded Surface Mount Inductor with a Ferrite Core, 68 μH Semi Shielded 20 % 1.5 A Idc Q:12
  • RS Stock No. 223-1821
  • Mfr. Part No. SRN8040TA-680M
Subtotal (1 tape of 10 units)
SGD6.84(exc. GST)
SGD0.684/unit
In Stock
Bourns 24 ppr Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole
  • RS Stock No. 789-9602P
  • Mfr. Part No. PEC12R-2220F-S0024
Subtotal 1 unit (supplied in a tray)
SGD2.43(exc. GST)
SGD2.43/unit
Temporarily out of stock
Panasonic ERJPC3 15.4 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.5 % Surface 0.2 W - ERJPC3D1542V
  • RS Stock No. 789-337
  • Mfr. Part No. ERJPC3D1542V
Subtotal (1 tape of 10 units)
SGD0.73(exc. GST)
SGD0.073/unit
In Stock
10 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Side Adjust Vishay, T93
  • RS Stock No. 788-5038
  • Mfr. Part No. T93XA103KT20
Subtotal (1 pack of 5 units)
SGD13.45(exc. GST)
SGD2.69/unit
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MMD 32.77 kHz Crystal Unit ±20 ppm SMT 2.5 mm 8.7 mm 3.7mm
  • RS Stock No. 219-2070
  • Mfr. Part No. MMC-463F-32.768KHZ-T
Subtotal (1 tape of 10 units)
SGD10.78(exc. GST)
SGD1.078/unit
Temporarily out of stock
KEMET C4AF Polypropylene Capacitor, 10 %, 32 μF 350V ac, PCB
  • RS Stock No. 207-8900
  • Mfr. Part No. C4AF7EW5320T3BK
Subtotal (1 unit)
SGD39.73(exc. GST)
SGD39.73/unit
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Panasonic ERJ B2 3.6 kΩ, 0612 Thick Film Resistor ±1 % 0.75 W - ERJB2AF362V
  • RS Stock No. 228-0727
  • Mfr. Part No. ERJB2AF362V
Subtotal (1 reel of 5000 units)
SGD1,085.00(exc. GST)
SGD0.217/unit
Temporarily out of stock
Panasonic ERJPC3 68000 Ω, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B6802V
  • RS Stock No. 790-175
  • Mfr. Part No. ERJPC3B6802V
Subtotal (1 tape of 10 units)
SGD0.82(exc. GST)
SGD0.082/unit
Last RS stock
Vishay Thermistor, NTC Type 100 kΩ, 0603 800 μm 1.6 mm 800 μm
  • RS Stock No. 684-1232P
  • Mfr. Part No. NTCS0603E3104JXT
Subtotal 10 units (supplied on a continuous strip)
SGD4.32(exc. GST)
SGD0.432/unit
Currently unavailable
KOA RN73H 56 Ω, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W
  • RS Stock No. 187-7836P
  • Mfr. Part No. RN73H1ETTP56R0B25
Subtotal 250 units (supplied on a reel)
SGD59.00(exc. GST)
SGD0.236/unit
In Stock
TE Connectivity 68 Ω Metal Oxide Resistor 3 W 5 % ROX3SJ68R
  • RS Stock No. 214-2601
  • Mfr. Part No. ROX3SJ68R
Subtotal (1 pack of 10 units)
SGD4.34(exc. GST)
SGD0.434/unit
Currently unavailable
Panasonic ERJPC6 3320 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 → 0.5 % Surface 0.25 W -
  • RS Stock No. 784-798
  • Mfr. Part No. ERJPC6D3321V
Subtotal (1 tape of 10 units)
SGD0.94(exc. GST)
SGD0.094/unit
In Stock
Wurth Elektronik 220 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 242-1084P
  • Mfr. Part No. 885012007059
Subtotal 50 units (supplied on a continuous strip)
SGD4.10(exc. GST)
SGD0.082/unit
In Stock
Panasonic ERJ H3G 18 kΩ, 0603 Thick Film Surface Mount Resistor ±5 % 0.13 W
  • RS Stock No. 228-4810P
  • Mfr. Part No. ERJH3GJ183V
Subtotal 100 units (supplied on a continuous strip)
SGD6.00(exc. GST)
SGD0.06/unit
Temporarily out of stock
Eaton 6 F Supercapacitor -10 → 30 % Tolerance, TV 3V dc, Through Hole
  • RS Stock No. 135-1064
  • Mfr. Part No. TV1020-3R0605-R
Subtotal (1 bag of 100 units)
SGD305.00(exc. GST)
SGD3.05/unit
Temporarily out of stock
Panasonic ERJPC3 220 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B2203V
  • RS Stock No. 789-492
  • Mfr. Part No. ERJPC3B2203V
Subtotal (1 tape of 10 units)
SGD0.82(exc. GST)
SGD0.082/unit
In Stock
Bourns, SDR0503 Unshielded Surface Mount Inductor with a Ferrite Core, 15 mH Ferrite Core ±5 % 20 mA Idc Q:30
  • RS Stock No. 223-1733
  • Mfr. Part No. SDR0503-153JL
Subtotal (1 tape of 10 units)
SGD5.64(exc. GST)
SGD0.564/unit
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