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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EMI Filters & Protection
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Passive Components Kits
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163510 Products showing for Passive Components

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TE Connectivity 31.8 mm Knob Diameter Silver Potentiometer Knob for 6.35 mm Shaft Circular, KLN1250A1/4
  • RS Stock No. 783-0142
  • Mfr. Part No. KLN1250A1/4
Subtotal (1 unit)
SGD25.01(exc. GST)
SGD25.01/unit
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5 kΩ, Surface Trimmer Potentiometer, Solder Pin 0.25 W Top Adjust Bourns, 3269
  • RS Stock No. 787-0819P
  • Mfr. Part No. 3269W-1-502LF
Subtotal (1 unit, supplied in a tube)
SGD6.32(exc. GST)
SGD6.32/unit
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Vishay 22 μF Capacitor 25V dc, Through Hole - MAL203036229E3 Axial
  • RS Stock No. 108-5260
  • Mfr. Part No. MAL203036229E3
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SGD15.25(exc. GST)
SGD3.05/unit
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Phoenix Contact, VAL-MS 230/1+1 Surge Suppressor Unit 275V ac Maximum Voltage Rating 40 kA Maximum Surge Current Surge
  • RS Stock No. 190-2098
  • Mfr. Part No. 2804429
Subtotal (1 unit)
SGD466.61(exc. GST)
SGD466.61/unit
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Bourns 3590 50 kΩ Precision Potentiometer 10-Turns 1-Gang Bush
  • RS Stock No. 233-0740
  • Mfr. Part No. 3590S-1-503L
Subtotal (1 unit)
SGD23.80(exc. GST)
SGD23.80/unit
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Panasonic 470 μF Polymer Capacitor 25V, Surface - 25SVPK470M
  • RS Stock No. 249-1185
  • Mfr. Part No. 25SVPK470M
Subtotal (10 units, in packs of 10)
SGD27.68(exc. GST)
SGD2.768/unit
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Panasonic 220 μF Capacitor 50V dc, Radial, Through Hole - EEUFC1H221 Radial Lead
  • RS Stock No. 449-1090
  • Mfr. Part No. EEUFC1H221
Subtotal (5 units, in packs of 5)
SGD6.85(exc. GST)
SGD1.37/unit
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Bourns 18 ppr Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole
  • RS Stock No. 737-7736
  • Mfr. Part No. PEC11R-4115F-S0018
Subtotal (1 unit)
SGD3.78(exc. GST)
SGD3.78/unit
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Panasonic ERJ 2RK 10 kΩ, 0402 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.1 W - ERJ2RKF1002X
  • RS Stock No. 287-583
  • Mfr. Part No. ERJ2RKF1002X
Subtotal (10 units, in bags of 10)
SGD0.14(exc. GST)
SGD0.014/unit
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Vishay 120 Ω Wirewound High Power Wirewound Resistor 4 W 5 % G22041431200JF1000
  • RS Stock No. 243-7546
  • Mfr. Part No. G22041431200JF1000
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SGD2.46(exc. GST)
SGD2.46/unit
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Siretta DELTA7A/x/SMAM/RP/S/11 Whip Multi-Band Antenna with SMA RP Connector, WiFi (Dual Band), ISM Band
  • RS Stock No. 124-8683
  • Mfr. Part No. DELTA7A/x/SMAM/RP/S/11
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SGD12.24(exc. GST)
SGD12.24/unit
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Yageo RC 2 kΩ, 1206 Thick Film Surface Mount Fixed Resistor ±1 % 0.25 W - RC1206FR-072KL
  • RS Stock No. 242-7180P
  • Mfr. Part No. RC1206FR-072KL
Subtotal (100 units, supplied on a continuous strip)
SGD2.30(exc. GST)
SGD0.023/unit
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Wurth Elektronik, WE-MK, 0402 Shielded Multilayer Surface Mount Inductor with a Ceramic Core, 1.2 nH Multilayer ±2 % 300
  • RS Stock No. 245-8393
  • Mfr. Part No. 7447840012G
Subtotal (10 units, on tapes of 10)
SGD0.73(exc. GST)
SGD0.073/unit
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Phoenix Contact, PT Surge Protection Plug 180V dc Maximum Voltage Rating
  • RS Stock No. 131-641
  • Mfr. Part No. 2800782
Subtotal (1 unit)
SGD268.12(exc. GST)
SGD268.12/unit
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RS PRO 92 dB Panel Mount Fast Pulse, Continuous Internal 23.5 mm Piezo Buzzer Component 6 V dc Min 28V dc Max
  • RS Stock No. 237-962
Subtotal (1 unit)
SGD26.48(exc. GST)
SGD26.48/unit
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TE Connectivity CJP300J47RJ, 47 Ω 300 W Wirewound Power Resistor 5 %
  • RS Stock No. 261-2390
  • Mfr. Part No. CJP300J47RJ
Subtotal (1 unit)
SGD84.11(exc. GST)
SGD84.11/unit
Currently unavailable
RF Solutions ANT-MOD6-N Rod Omni-Directional Antenna with Type N, SMA Connector
  • RS Stock No. 125-8198
  • Mfr. Part No. ANT-MOD6-N
Subtotal (1 unit)
SGD79.22(exc. GST)
SGD79.22/unit
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Arcol Ohmite HS50 12R J, 12 Ω 50 W Aluminium Chassis Mount Resistor ±5 %
  • RS Stock No. 166-4197
  • Mfr. Part No. HS50 12R J
Subtotal (20 units, in bags of 20)
SGD123.80(exc. GST)
SGD6.19/unit
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RS PRO 80 dB Panel Mount Slow Pulse, Continuous Internal 33 mm Piezo Buzzer Component 6 V dc Min 28V dc Max
  • RS Stock No. 771-6901
Subtotal (1 unit)
SGD22.05(exc. GST)
SGD22.05/unit
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TDK, CT Multilayer Varistor 1 A, Clamping 19 V
  • RS Stock No. 703-1666
  • Mfr. Part No. B72510T0040M062
Subtotal (10 units, in packs of 10)
SGD5.02(exc. GST)
SGD0.502/unit
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