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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162337 Products showing for Passive Components

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Vishay MMA0204 7.5 kΩ, 0204 Thin Film Surface Mount Resistor ±0.1 % 0.25 W - MMA02040E7501BB100
  • RS Stock No. 678-7817
  • Mfr. Part No. MMA02040E7501BB100
Subtotal (1 pack of 5 units)
SGD8.41(exc. GST)
SGD1.682/unit
In Stock
Vishay CRCW 0 mΩ, 0402 Thick Film Surface Mount Resistor ±0 % 0.06 W - CRCW04020000Z0ED
  • RS Stock No. 393-2326
  • Mfr. Part No. CRCW04020000Z0ED
Subtotal (1 pack of 50 units)
SGD0.80(exc. GST)
SGD0.016/unit
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Broadcom 5.5V dc Optical Encoder with a 6 mm Round Shaft, Screw, Connector
  • RS Stock No. 566-039
  • Mfr. Part No. AR49-M49M-P12V
Subtotal (1 unit)
SGD118.52(exc. GST)
SGD118.52/unit
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KEMET 2200 μF Capacitor 450V dc, Screw - ALS30A222NF450
  • RS Stock No. 172-6941
  • Mfr. Part No. ALS30A222NF450
Subtotal (1 bag of 12 units)
SGD958.428(exc. GST)
SGD79.869/unit
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Abracon 32.768 kHz Crystal Unit ±20 ppm Surface Mount 2-Pin 600 μm 2 mm 1.2mm
  • RS Stock No. 171-2303
  • Mfr. Part No. ABS06-32.768KHZ-T
Subtotal (1 reel of 3000 units)
SGD2,211.00(exc. GST)
SGD0.737/unit
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Yageo 220 Ω Carbon Film Carbon Film Fixed Resistor 0.25 W 5 % CFR-25JT-52-220R
  • RS Stock No. 199-1801
  • Mfr. Part No. CFR-25JT-52-220R
Subtotal (1 tape of 200 units)
SGD6.60(exc. GST)
SGD0.033/unit
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TE Connectivity RH73 50 GΩ, 0805 Thick Film Surface Mount Resistor ±30 % Surface 0.13 W
  • RS Stock No. 294-5135P
  • Mfr. Part No. RH73X2A50GNTN
Subtotal 5 units (supplied on a continuous strip)
SGD42.55(exc. GST)
SGD8.51/unit
In Stock
Panasonic ERJ 3.4 kΩ, 0402 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - ERJ2RKF3401X
  • RS Stock No. 277-748
  • Mfr. Part No. ERJ2RKF3401X
Subtotal (1 bag of 10 units)
SGD0.14(exc. GST)
SGD0.014/unit
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RF Solutions ANT-GDIP3-SMA T-Bar Omni-Directional Antenna with SMA Connector
  • RS Stock No. 146-3507
  • Mfr. Part No. ANT-GDIP3-SMA
Subtotal (1 unit)
SGD10.56(exc. GST)
SGD10.56/unit
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5 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Side Adjust Vishay, 43P
  • RS Stock No. 162-221
  • Mfr. Part No. M43P502KB40
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SGD3.22(exc. GST)
SGD3.22/unit
Currently unavailable
TDK 22 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 179-5991
  • Mfr. Part No. CGA2B2NP01H220J050BA
Subtotal (1 reel of 1000 units)
SGD33.00(exc. GST)
SGD0.033/unit
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Wurth Elektronik Ferrite Ring Toroid Core 4.3 mm, For: EMI Suppression 3.3 mm ID 7.3 mm OD
  • RS Stock No. 124-1853
  • Mfr. Part No. 74270111
Subtotal (1 pack of 10 units)
SGD15.47(exc. GST)
SGD1.547/unit
Temporarily out of stock
Eaton 6 F Supercapacitor -10 → 30 % Tolerance, Supercap HV 2.7V dc, Through Hole
  • RS Stock No. 169-9463
  • Mfr. Part No. HV0830-2R7605-R
Subtotal (1 bag of 100 units)
SGD284.10(exc. GST)
SGD2.841/unit
Temporarily out of stock
TE Connectivity L000941-11 FPC Multi-Band Antenna with MHF4L Connector, 617 MHz, 5000 MHz, 5G
  • RS Stock No. 426-113
  • Mfr. Part No. L000941-11
Subtotal (1 box of 2000 units)
SGD5,928.00(exc. GST)
SGD2.964/unit
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PUI Audio Omni-Directional, Surface Microphone -38dBV/Pa
  • RS Stock No. 758-963
  • Mfr. Part No. AMM-2738-4-B
Subtotal (1 tape of 1 unit)
SGD2.87(exc. GST)
SGD2.87/tape
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KYOCERA AVX 100 nF Electrolytic Tantalum Capacitor 35V dc, Through Hole, Tap Series
  • RS Stock No. 134-9748
  • Mfr. Part No. TAP104K035SCS
Subtotal (1 bag of 25 units)
SGD15.125(exc. GST)
SGD0.605/unit
In Stock
Wurth Elektronik 33 μF Capacitor 16V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 839-4299
  • Mfr. Part No. 860160372005
Subtotal (1 pack of 25 units)
SGD5.125(exc. GST)
SGD0.205/unit
Last RS stock
TDK 39 mH Ferrite Power Line Choke, Max SRF:10 kHz, 550 mA Idc, 2.2 Ω Rdc 250V ac, B82731T
  • RS Stock No. 871-1569
  • Mfr. Part No. B82731T2551A020
Subtotal (1 bag of 3 units)
SGD9.681(exc. GST)
SGD3.227/unit
In Stock
Panasonic 10 μF Aluminium Electrolytic Capacitor 35V dc, Surface Solder 2000
  • RS Stock No. 747-9012
  • Mfr. Part No. EEEFK1V100UR
Subtotal (1 reel of 2000 units)
SGD326.00(exc. GST)
SGD0.163/unit
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Bourns, SRP1038WA, 1038 Shielded Power Inductor with a Metal Alloy Powder Core, 3.3 μH ±20 % 15 A Idc Q:20
  • RS Stock No. 247-6042
  • Mfr. Part No. SRP1038WA-3R3M
Subtotal (1 unit)
SGD2.01(exc. GST)
SGD2.01/unit
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