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
Fixed Resistors
Fixed Resistors
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Inductors
Passive Components Kits
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

163762 Products showing for Passive Components

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Murata 100 nF Multilayer Ceramic Capacitor, 50V dc, 10 %, Surface
  • RS Stock No. 247-8022P
  • Mfr. Part No. GRM155R71H104KE14D
Subtotal (200 units, supplied on a reel)
SGD4.00(exc. GST)
SGD0.02/unit
Temporarily out of stock
Siretta TANGO57/MIMO/401/1M/SMAM/RP-SMAM Puck Omni-Directional GPS Antenna with SMA Connector, 5G
  • RS Stock No. 854-511
  • Mfr. Part No. TANGO57/MIMO/401/1M/SMAM/RP-SMAM
Subtotal (1 unit)
SGD246.19(exc. GST)
SGD246.19/unit
In Stock
Arcol Ohmite 120 Ω Carbon Film Carbon Film Fixed Resistor 0.25 W 5 % OK1215E-R52
  • RS Stock No. 263-4329
  • Mfr. Part No. OK1215E-R52
Subtotal (10 units, on tapes of 10)
SGD0.81(exc. GST)
SGD0.081/unit
In Stock
Murata, LQH, 1210 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 10 μH ±10 % 300 mA Idc
  • RS Stock No. 481-1882
  • Mfr. Part No. LQH32CN100K23L
Subtotal (20 units, in packs of 20)
SGD6.26(exc. GST)
SGD0.313/unit
In Stock
Panasonic ERJ8BQ 300 mΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W
  • RS Stock No. 721-5903P
  • Mfr. Part No. ERJ8BQFR30V
Subtotal (5 units, supplied on a continuous strip)
SGD1.72(exc. GST)
SGD0.344/unit
In Stock
KEMET 270 μF Capacitor 250V dc, Snap-in - ALC70A271BB250
  • RS Stock No. 185-9477
  • Mfr. Part No. ALC70A271BB250
Subtotal (1 unit)
SGD10.88(exc. GST)
SGD10.88/unit
In Stock
Bourns 100 μH Ferrite Bobbin Bobbin Inductor, 10.5 A Idc, 25 mΩ Rdc, 1140
  • RS Stock No. 122-9231
  • Mfr. Part No. 1140-101K-RC
Subtotal (2 units, in packs of 2)
SGD38.16(exc. GST)
SGD19.08/unit
In Stock
TE Connectivity CPF 33 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - CPF0805B33KE
  • RS Stock No. 666-2639
  • Mfr. Part No. CPF0805B33KE
Subtotal (5 units, in packs of 5)
SGD2.36(exc. GST)
SGD0.472/unit
Temporarily out of stock
Panasonic ERJ 390 Ω, 0603 Thick Film Surface Mount Resistor ±0.5 % 0.1 W - ERJ3RBD3900V
  • RS Stock No. 169-1035
  • Mfr. Part No. ERJ3RBD3900V
Subtotal (5000 units, on reels of 5000)
SGD145.00(exc. GST)
SGD0.029/unit
Currently unavailable
Yageo RT 200 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - RT0603BRD07200KL
  • RS Stock No. 199-1449
  • Mfr. Part No. RT0603BRD07200KL
Subtotal (5000 units, on reels of 5000)
SGD285.00(exc. GST)
SGD0.057/unit
Currently unavailable
TE Connectivity 3560 10 MΩ, 4257 (11070M) Thick Film ±5 % 6 W - 356010MJT
  • RS Stock No. 187-0418
  • Mfr. Part No. 356010MJT
Subtotal (5 units, on tapes of 5)
SGD12.87(exc. GST)
SGD2.574/unit
In Stock
Bourns, 4600X 47 kΩ 2 % ISOL Resistor Array, 3 Resistors, 0.75 W total, SIP, Pin
  • RS Stock No. 161-6789
  • Mfr. Part No. 4606X-102-473LF
Subtotal (200 units, in bags of 200)
SGD34.00(exc. GST)
SGD0.17/unit
In Stock
Bourns, SRP1245A, 1245 Shielded Wirewound Surface Mount Inductor with a Carbonyl Powder Core, 10 μH ±20 % 9 A Idc Q:20
  • RS Stock No. 819-3434
  • Mfr. Part No. SRP1245A-100M
Subtotal (5 units, in bags of 5)
SGD9.45(exc. GST)
SGD1.89/unit
Currently unavailable
TE Connectivity 3430 1 kΩ, 0612 Thick Film Surface Mount Fixed Resistor 1 % Surface 1.5 W - 3430B2F47KTD
  • RS Stock No. 274-7209
  • Mfr. Part No. 3430B2F47KTD
Subtotal (5000 units, on reels of 5000)
SGD660.00(exc. GST)
SGD0.132/unit
In Stock
Murata Power Solutions 47 μH Leaded Inductor, Max SRF:5 MHz, Q:104, 4.04 A Idc, 45.6 mΩ Rdc, 1500
  • RS Stock No. 170-9255
  • Mfr. Part No. 15473C
Subtotal (40 units, on reels of 40)
SGD106.20(exc. GST)
SGD2.655/unit
Temporarily out of stock
Panasonic 330 μF Capacitor 50V dc, Surface Solder - EEEFK1H331AQ 200
  • RS Stock No. 108-4974
  • Mfr. Part No. EEEFK1H331AQ
Subtotal (200 units, on reels of 200)
SGD206.40(exc. GST)
SGD1.032/unit
Temporarily out of stock
TDK, B84144A 36 A 520V ac, Through Hole EMC Filter, Terminal Block 3 Phase
  • RS Stock No. 279-7923
  • Mfr. Part No. B84144A0036R140
Subtotal (2 units, in boxes of 2)
SGD729.28(exc. GST)
SGD364.64/unit
In Stock
ROHM ESR18 2.4 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - ESR18EZPF2R40
  • RS Stock No. 264-1785
  • Mfr. Part No. ESR18EZPF2R40
Subtotal (5000 units, on reels of 5000)
SGD160.00(exc. GST)
SGD0.032/unit
Last RS stock
Vishay CRCW 180 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRCW1206180KFKEA
  • RS Stock No. 169-4811
  • Mfr. Part No. CRCW1206180KFKEA
Subtotal (5000 units, on reels of 5000)
SGD115.00(exc. GST)
SGD0.023/unit
In Stock
KOA RN73R 18 kΩ, 0805 Metal Film Surface Mount Resistor ±0.1 % 0.13 W - RN73R2ATTD1802B25
  • RS Stock No. 253-3232
  • Mfr. Part No. RN73R2ATTD1802B25
Subtotal (5 units, on tapes of 5)
SGD1.74(exc. GST)
SGD0.348/unit
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