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
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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Variable Resistors

160878 Products showing for Passive Components

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KOA RN73R 2 kΩ, 1206 Metal Film Surface Mount Resistor ±0.1 % 0.25 W
  • RS Stock No. 253-3390P
  • Mfr. Part No. RN73R2BTTD2001B25
Subtotal (5 units, supplied on a continuous strip)
SGD2.67(exc. GST)
SGD0.534/unit
In Stock
Yageo RC_L 100 kΩ, 0201 Thick Film Surface Mount Resistor ±1 % 0.05 W
  • RS Stock No. 198-7555P
  • Mfr. Part No. RC0201FR-07100KL
Subtotal (100 units, supplied on a continuous strip)
SGD1.10(exc. GST)
SGD0.011/unit
In Stock
KEMET MMK Film Capacitor, ±10 %, 100 nF 400 V dc 200V ac, Through Hole
  • RS Stock No. 192-203P
  • Mfr. Part No. MMK15104K400B04L4BULK
Subtotal (5 units, supplied in a box)
SGD3.43(exc. GST)
SGD0.686/unit
In Stock
20 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Side Adjust Bourns, 3362
  • RS Stock No. 522-1088
  • Mfr. Part No. 3362W-1-203LF
Subtotal (1 unit)
SGD1.23(exc. GST)
SGD1.23/unit
In Stock
TDK 100 nF Multilayer Ceramic Capacitor, 630V dc, ±10 %, Surface
  • RS Stock No. 179-5510
  • Mfr. Part No. CGA6L1X7T2J104K160AE
Subtotal (25 units, in packs of 25)
SGD12.725(exc. GST)
SGD0.509/unit
In Stock
TE Connectivity 36.5 Ω Metal Film Resistor 0.25 W 0.1 % YR1B36R5CC
  • RS Stock No. 754-5632
  • Mfr. Part No. YR1B36R5CC
Subtotal (5 units, in packs of 5)
SGD3.67(exc. GST)
SGD0.734/unit
Temporarily out of stock
TDK Thermistor, NTC Type 100 kΩ, 0805 1.3 mm 2 mm 1.25 mm
  • RS Stock No. 167-0277
  • Mfr. Part No. B57471V2104J062
Subtotal (3000 units, on reels of 3000)
SGD831.00(exc. GST)
SGD0.277/unit
Currently unavailable
TE Connectivity HCL165J22RCX, 22 Ω 100 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 254-3831
  • Mfr. Part No. HCL165J22RCX
Subtotal (50 units, in boxes of 50)
SGD3,587.50(exc. GST)
SGD71.75/unit
In Stock
Yageo PE_L 30 mΩ, 1206 Current Sensing Surface Mount Resistor ±1 % 0.25 W - PE1206FRM070R03L
  • RS Stock No. 199-5894
  • Mfr. Part No. PE1206FRM070R03L
Subtotal (20 units, on tapes of 20)
SGD7.76(exc. GST)
SGD0.388/unit
Temporarily out of stock
Abracon 18.432 MHz Crystal Unit ±50 ppm Surface Mount 4-Pin 1.3 mm 5 mm 3.2mm
  • RS Stock No. 241-3019
  • Mfr. Part No. ABM3C-18.432MHZ-D4Y-T
Subtotal (1000 units, on reels of 1000)
SGD720.00(exc. GST)
SGD0.72/unit
In Stock
Wurth Elektronik, 784373, 7030 Shielded Surface Mount Inductor with a Magnetic Iron Alloy Core, 3.3 μH Shielded ±20 %
  • RS Stock No. 426-900P
  • Mfr. Part No. 784373460033
Subtotal (5 units, supplied on a continuous strip)
SGD19.79(exc. GST)
SGD3.958/unit
In Stock
Bourns CR 39 Ω, 0402 Thick Film Resistor 1 % Surface 1 W - CR0402-FX-39R0GLF
  • RS Stock No. 630-503
  • Mfr. Part No. CR0402-FX-39R0GLF
Subtotal (20 units, on tapes of 20)
SGD0.14(exc. GST)
SGD0.007/unit
In Stock
KOA RK73H 6.8 kΩ, 1210 Thick Film Surface Mount Resistor ±1 % 0.5 W - RK73H2ETTD6801F
  • RS Stock No. 123-4414
  • Mfr. Part No. RK73H2ETTD6801F
Subtotal (50 units, in bags of 50)
SGD4.50(exc. GST)
SGD0.09/unit
Limited stock
Murata 2.2 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Reflow Soldering
  • RS Stock No. 276-3745P
  • Mfr. Part No. GRM155Z71A225KE44D
Subtotal (100 units, supplied on a continuous strip)
SGD7.00(exc. GST)
SGD0.07/unit
Last RS stock
Vishay WSBS8518L0500JK, 50 μΩ 36 W Metal Strip Chassis Mount Resistor ±5 %
  • RS Stock No. 177-1402
  • Mfr. Part No. WSBS8518L0500JK
Subtotal (100 units, in bags of 100)
SGD1,109.00(exc. GST)
SGD11.09/unit
Currently unavailable
ECS Inc International 8 MHz Crystal Oscillator ±20 ppm Surface Mount 4-Pin 1.30 mm 7.00 mm 5mm
  • RS Stock No. 301-199
  • Mfr. Part No. ECS-080-18-20BM-JEN-TR
Subtotal (1 unit)
SGD1.96(exc. GST)
SGD1.96/unit
Currently unavailable
TE Connectivity 60.4 kΩ Metal Film Resistor 0.25 W 0.1 % YR1B60K4CC
  • RS Stock No. 754-6752
  • Mfr. Part No. YR1B60K4CC
Subtotal (5 units, in packs of 5)
SGD5.23(exc. GST)
SGD1.046/unit
Temporarily out of stock
Murata 10 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 187-3600P
  • Mfr. Part No. ZRB18AD71A106KE01L
Subtotal (250 units, supplied on a reel)
SGD52.75(exc. GST)
SGD0.211/unit
In Stock
KEMET 220 μF MnO2 Tantalum Capacitor 16V dc, Surface, T491 Series
  • RS Stock No. 801-5479P
  • Mfr. Part No. T491D227K016AT
Subtotal (5 units, supplied on a continuous strip)
SGD15.00(exc. GST)
SGD3.00/unit
In Stock
Panasonic ERJPC3 430 Ω, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B4300V
  • RS Stock No. 785-049P
  • Mfr. Part No. ERJPC3B4300V
Subtotal (10 units, supplied on a continuous strip)
SGD0.82(exc. GST)
SGD0.082/unit
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