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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Sounder, Buzzer & Microphone Components
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163841 Products showing for Passive Components

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Wurth Elektronik, WE-MAIA, 1610 Shielded Power Inductor with a Magnetic Iron Alloy Core, 820 nH ±30 % 1.45 A Idc
  • RS Stock No. 245-8622P
  • Mfr. Part No. 784383130082
Subtotal 5 units (supplied on a continuous strip)
SGD7.25(exc. GST)
SGD1.45/unit
Last RS stock
TE Connectivity CRGH 5.6 kΩ, 0603 Thick Film Surface Mount Resistor ±5 % Surface 0.2 W - CRGH0603J5K6
  • RS Stock No. 807-5582
  • Mfr. Part No. CRGH0603J5K6
Subtotal (1 bag of 100 units)
SGD2.30(exc. GST)
SGD0.023/unit
Currently unavailable
TE Connectivity CPF 475 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0603B475KE1
  • RS Stock No. 122-8885
  • Mfr. Part No. CPF0603B475KE1
Subtotal (1 bag of 20 units)
SGD4.94(exc. GST)
SGD0.247/unit
Temporarily out of stock
Bourns PTD90 10 kΩ Audio Potentiometer 1-Turns 2-Gang Through Hole
  • RS Stock No. 223-1722
  • Mfr. Part No. PTD902-2015F-A103
Subtotal (1 pack of 5 units)
SGD16.95(exc. GST)
SGD3.39/unit
In Stock
Wurth Elektronik WCAP-FTXX Film Capacitor X2, ±10 %, 3.3 μF 310 V dc 310V ac, Through Hole
  • RS Stock No. 122-9866
  • Mfr. Part No. 890334027025
Subtotal (1 pack of 10 units)
SGD45.80(exc. GST)
SGD4.58/unit
Temporarily out of stock
Yageo RT 4.75 kΩ, 0603 Thin Film Surface Mount Resistor ±1 % 0.05 W - RT0603FRE074K75L
  • RS Stock No. 198-5547
  • Mfr. Part No. RT0603FRE074K75L
Subtotal (1 reel of 5000 units)
SGD50.00(exc. GST)
SGD0.01/unit
Temporarily out of stock
Murata Power Solutions 220 μH Leaded Inductor, Max SRF:2.8 MHz, Q:22, 3.5 A Idc, 96 mΩ Rdc, 1400
  • RS Stock No. 106-7733
  • Mfr. Part No. 1422435C
Subtotal (1 box of 25 units)
SGD96.20(exc. GST)
SGD3.848/unit
In Stock
Panasonic 100 μF Capacitor 160V dc, Radial, Through Hole - EEUEE2C101 Radial Lead
  • RS Stock No. 699-7405
  • Mfr. Part No. EEUEE2C101
Subtotal (1 pack of 5 units)
SGD11.75(exc. GST)
SGD2.35/unit
In Stock
Bourns 3590 5 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, 3590S-6-502L
  • RS Stock No. 789-9396
  • Mfr. Part No. 3590S-6-502L
Subtotal (1 unit)
SGD23.96(exc. GST)
SGD23.96/unit
In Stock
KOA, RN73R Thin Film, Surface 49 Resistor Kit 4900, 100 Ω → 10 kΩ
  • RS Stock No. 241-0641
  • Mfr. Part No. RN73R1ET-KIT1
Subtotal (1 kit)
SGD270.82(exc. GST)
SGD270.82/kit
Currently unavailable
Vishay 4.7 nF 15 kV dc, 5.3kVrms -20/80 % Ceramic Dielectric, 715C15DK, Screw 85 °C Max Op. Temp.
  • RS Stock No. 184-9576
  • Mfr. Part No. 715C15DKD47
Subtotal (1 box of 24 units)
SGD1,361.112(exc. GST)
SGD56.713/unit
In Stock
WJ Furse, ESP SL Surge Suppressor Unit 36.7V Maximum Voltage Rating 20 kA Maximum Surge Current Twisted Pair Surge
  • RS Stock No. 788-6725
  • Mfr. Part No. 7TCA085400R0070 ESP SL30L/4-20
Subtotal (1 unit)
SGD419.85(exc. GST)
SGD419.85/unit
Last RS stock
Vishay 4.7 kΩ Wirewound High Power Wirewound Resistor 4 W 5 % G22041434701JF1000
  • RS Stock No. 243-7565
  • Mfr. Part No. G22041434701JF1000
Subtotal (1 unit)
SGD6.50(exc. GST)
SGD6.50/unit
In Stock
TE Connectivity 3.3 kΩ Metal Film Surface Mount Resistor 5 % 2 W - SMQF23K3JT
  • RS Stock No. 286-7422P
  • Mfr. Part No. SMQF23K3JT
Subtotal 5 units (supplied on a continuous strip)
SGD5.03(exc. GST)
SGD1.006/unit
In Stock
Nichicon 820 μF Capacitor 200V dc, Snap-in - LGU2D821MELB
  • RS Stock No. 851-2185
  • Mfr. Part No. LGU2D821MELB
Subtotal (1 unit)
SGD7.78(exc. GST)
SGD7.78/unit
Temporarily out of stock
Panasonic ERA8XEB 200 kΩ, 1206 Thin Film Thin Film Resistor ±0.1 % Surface Mount 0.25 W - ERA8XEB2003V
  • RS Stock No. 895-769P
  • Mfr. Part No. ERA8XEB2003V
Subtotal 10 units (supplied on a continuous strip)
SGD18.14(exc. GST)
SGD1.814/unit
In Stock
Panasonic ERJUP6 220 Ω, 0805 Surface Mount Resistor ±1 % 0.5 W - ERJUP6F2200V
  • RS Stock No. 243-2276P
  • Mfr. Part No. ERJUP6F2200V
Subtotal 100 units (supplied on a continuous strip)
SGD9.00(exc. GST)
SGD0.09/unit
In Stock
Panasonic 100 μF Polymer Capacitor 6.3V dc, Surface - EEFCX0J101R
  • RS Stock No. 726-9922
  • Mfr. Part No. EEFCX0J101R
Subtotal (1 pack of 2 units)
SGD4.25(exc. GST)
SGD2.125/unit
Temporarily out of stock
TE Connectivity TE2000B1R0J, 1 Ω 2 kW Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 701-5857
  • Mfr. Part No. TE2000B1R0J
Subtotal (1 unit)
SGD238.82(exc. GST)
SGD238.82/unit
In Stock
Vishay 1 kΩ Wirewound Resistor 2 W 1 %
  • RS Stock No. 788-8078P
  • Mfr. Part No. RLP0210000FS14
Subtotal 5 units (supplied in a bag)
SGD119.05(exc. GST)
SGD23.81/unit
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