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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Antennas
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Capacitors
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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Inductors
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Passive Components Kits
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Rotary Encoders
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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161113 Products showing for Passive Components

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1724 of 999+
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Panasonic ERJ H3G 470 Ω, 0603 Thick Film Surface Mount Resistor ±5 % 0.13 W - ERJH3GJ471V
  • RS Stock No. 228-4868P
  • Mfr. Part No. ERJH3GJ471V
Subtotal 100 units (supplied on a continuous strip)
SGD6.30(exc. GST)
SGD0.063/unit
In Stock
TE Connectivity 390 Ω Metal Oxide Resistor 2 W 5 % ROX2SJ390R
  • RS Stock No. 214-1894
  • Mfr. Part No. ROX2SJ390R
Subtotal (1 pack of 10 units)
SGD2.51(exc. GST)
SGD0.251/unit
In Stock
Panasonic ERJ 39.2 kΩ, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - ERJ3EKF3922V
  • RS Stock No. 287-543P
  • Mfr. Part No. ERJ3EKF3922V
Subtotal 10 units (supplied on a continuous strip)
SGD0.33(exc. GST)
SGD0.033/unit
Currently unavailable
Panasonic ERJ B2 820 Ω, 0612 Thick Film Resistor ±1 % 0.75 W - ERJB2AF821V
  • RS Stock No. 228-0785P
  • Mfr. Part No. ERJB2AF821V
Subtotal 20 units (supplied on a continuous strip)
SGD5.96(exc. GST)
SGD0.298/unit
Temporarily out of stock
Wurth Elektronik, WE-MAPI SMT, 4020 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 3.3 μH 20 % 3.6 A
  • RS Stock No. 217-7301
  • Mfr. Part No. 74438356033HT
Subtotal (1 tape of 5 units)
SGD13.19(exc. GST)
SGD2.638/unit
In Stock
PUI Audio 85 dBA Through Hole Continuous Internal Magnetic Buzzer Component 9.5 mm 4 V dc Min 12 mm 12mm 7V dc Max
  • RS Stock No. 276-813
  • Mfr. Part No. AI-1223-TWT-5V-R
Subtotal (1 unit)
SGD4.28(exc. GST)
SGD4.28/unit
In Stock
TDK B32529 Film Capacitor 6.8 nF 400V ac 400 V dc, Through Hole 2
  • RS Stock No. 896-1391P
  • Mfr. Part No. B32529C6682J000
Subtotal 25 units (supplied in a bag)
SGD7.025(exc. GST)
SGD0.281/unit
Temporarily out of stock
Yageo SR 47 Ω, 2512 Thick Film Surface Mount Resistor ±5 % 1 W - SR2512JK-0747RL
  • RS Stock No. 197-8454
  • Mfr. Part No. SR2512JK-0747RL
Subtotal (1 tape of 25 units)
SGD6.175(exc. GST)
SGD0.247/unit
In Stock
Bourns CR 1 Ω, 2512 Thick Film Resistor 1 % Surface 1 W - CR2512-F/-1R00ELF
  • RS Stock No. 630-153P
  • Mfr. Part No. CR2512-F/-1R00ELF
Subtotal 20 units (supplied on a continuous strip)
SGD3.10(exc. GST)
SGD0.155/unit
In Stock
Wurth Elektronik Ferrite Bead 0.8 mm (Surface) (0603) (EMI Suppression), 220 Ω impedance at 100 MHz
  • RS Stock No. 669-4002P
  • Mfr. Part No. 74279263
Subtotal 10 units (supplied on a continuous strip)
SGD2.52(exc. GST)
SGD0.252/unit
In Stock
Bourns, DV Varistor 150 pF 10 A, Clamping 710 V, Varistor 430 V, 4032
  • RS Stock No. 204-8692
  • Mfr. Part No. DV275K4032R2
Subtotal (1 pack of 10 units)
SGD10.78(exc. GST)
SGD1.078/unit
In Stock
Panasonic ERJ PA2 56 Ω, 0402 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.2 W - ERJPA2F56R0X
  • RS Stock No. 278-016P
  • Mfr. Part No. ERJPA2F56R0X
Subtotal 10 units (supplied on a continuous strip)
SGD0.91(exc. GST)
SGD0.091/unit
Last RS stock
Vishay, IHLE2525, 2225 Shielded Surface Mount Inductor 5.6 μH ±20 % 5.3 A Idc
  • RS Stock No. 228-8659
  • Mfr. Part No. IHLE2525CDER5R6M5A
Subtotal (1 tape of 5 units)
SGD9.93(exc. GST)
SGD1.986/unit
In Stock
Panasonic ERJP06 40.2 Ω, 0805 Thick Film Surface Mount Fixed Resistor ±1 % 0.5 W - ERJP06F40R2V
  • RS Stock No. 277-790P
  • Mfr. Part No. ERJP06F40R2V
Subtotal 10 units (supplied on a continuous strip)
SGD1.28(exc. GST)
SGD0.128/unit
In Stock
Murata 10 μF Multilayer Ceramic Capacitor, 10V dc, ±20 %, Surface
  • RS Stock No. 170-6242
  • Mfr. Part No. GRM188C81A106MA73D
Subtotal (1 reel of 4000 units)
SGD264.00(exc. GST)
SGD0.066/unit
In Stock
Panasonic ERJ H3E 2.2 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.13 W - ERJH3EF2201V
  • RS Stock No. 228-4726P
  • Mfr. Part No. ERJH3EF2201V
Subtotal 100 units (supplied on a continuous strip)
SGD8.60(exc. GST)
SGD0.086/unit
Temporarily out of stock
Wurth Elektronik 3.3 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 263-4026
  • Mfr. Part No. 885012007066
Subtotal (1 reel of 3000 units)
SGD486.00(exc. GST)
SGD0.162/unit
In Stock
Panasonic ERJ 1.8 Ω, 0805 Thick Film Surface Mount Fixed Resistor ±5 % 0.13 W - ERJ6GEYJ1R8V
  • RS Stock No. 287-854
  • Mfr. Part No. ERJ6GEYJ1R8V
Subtotal (1 bag of 10 units)
SGD0.38(exc. GST)
SGD0.038/unit
In Stock
Panasonic ERJP08 220 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.66 W - ERJP08F2200V
  • RS Stock No. 922-9348
  • Mfr. Part No. ERJP08F2200V
Subtotal (1 reel of 5000 units)
SGD295.00(exc. GST)
SGD0.059/unit
In Stock
KOA RN73R 2.49 kΩ, 0603 Thin Film Resistor ±0.1 % 0.1 W - RN73R1JTTD2491B25
  • RS Stock No. 223-4721P
  • Mfr. Part No. RN73R1JTTD2491B25
Subtotal 100 units (supplied on a continuous strip)
SGD10.60(exc. GST)
SGD0.106/unit
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