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.

Antennas
Antennas
Capacitors
Capacitors
Crystals, Oscillators & Resonators
Crystals, Oscillators & Resonators
EMI Filters & Protection
EMI Filters & Protection
Fixed Resistors
Fixed Resistors
Inductors
Inductors
Passive Components Kits
Passive Components Kits
Rotary Encoders
Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
Surge Protection Components
Surge Protection Components
Variable Resistors
Variable Resistors

163667 Products showing for Passive Components

Sort By
433 / 999+
Temporarily out of stock
TE Connectivity RN73 5.9 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - RN73C2A5K9B
  • RS Stock No. 215-3241P
  • Mfr. Part No. RN73C2A5K9B
Subtotal 5 units (supplied on a continuous strip)
MYR23.27
MYR4.654/unit
In Stock
Bourns CR 82 kΩ, 0603 Thick Film Resistor 1 % Surface 100 mW - CR0603-FX-8202ELF
  • RS Stock No. 630-368P
  • Mfr. Part No. CR0603-FX-8202ELF
Subtotal 20 units (supplied on a continuous strip)
MYR0.78
MYR0.039/unit
In Stock
Panasonic 3.3 μF Capacitor 400V dc, Radial Radial Lead
  • RS Stock No. 920-3069
  • Mfr. Part No. ECA2GHG3R3
Subtotal (1 bag of 200 units)
MYR304.40
MYR1.522/unit
In Stock
Yageo AC 47 Ω, 0201 Thick Film Resistor ±1 % 0.05 W - AC0201FR-0747RL
  • RS Stock No. 197-7947P
  • Mfr. Part No. AC0201FR-0747RL
Subtotal 500 units (supplied on a reel)
MYR24.50
MYR0.049/unit
Temporarily out of stock
Panasonic ERJ 620 mΩ, 0805 Surface Mount Resistor ±1 % 0.5 W - ERJ6DQFR62V
  • RS Stock No. 243-1994P
  • Mfr. Part No. ERJ6DQFR62V
Subtotal 50 units (supplied on a continuous strip)
MYR22.70
MYR0.454/unit
Temporarily out of stock
Taoglas FXC.40.52.0075X.B.dg PCB RFID Antenna with F Connector, NFC
  • RS Stock No. 690-891
  • Mfr. Part No. FXC.40.52.0075X.B.dg
Subtotal (1 bag of 50 units)
MYR910.10
MYR18.202/unit
In Stock
Murata Ferrite Bead 0.3 mm (Surface) (0603) (Chip Ferrite Bead), 240 Ω impedance at 100 MHz
  • RS Stock No. 104-8515
  • Mfr. Part No. BLM03AX241SN1D
Subtotal (1 pack of 200 units)
MYR12.40
MYR0.062/unit
Currently unavailable
TE Connectivity TLRP 9 mΩ, 2512 Current Sensing Surface Mount Resistor ±1 % Surface 3 W
  • RS Stock No. 231-3942P
  • Mfr. Part No. TLRP3A30DR009FTE
Subtotal 10 units (supplied on a continuous strip)
MYR15.91
MYR1.591/unit
Temporarily out of stock
TE Connectivity 1-2195835-3 FPC Antenna with MHF Connector, 863 MHz, 928 MHz, ISM, LoRaWAN, ZigBee
  • RS Stock No. 849-504
  • Mfr. Part No. 1-2195835-3
Subtotal (1 bag of 3000 units)
MYR10,149.00
MYR3.383/unit
In Stock
ECS Inc International 32 MHz Crystal Oscillator ±10 ppm Surface Mount 4-Pin 0.55 mm 2.00 mm 1.6mm
  • RS Stock No. 301-339
  • Mfr. Part No. ECS-320-8-37B-CWY-TR
Subtotal (1 unit)
MYR1.68
MYR1.68/unit
Temporarily out of stock
Panasonic ERJPC6 2210 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W - ERJPC6B2211V
  • RS Stock No. 789-858P
  • Mfr. Part No. ERJPC6B2211V
Subtotal 10 units (supplied on a continuous strip)
MYR3.63
MYR0.363/unit
Temporarily out of stock
Panasonic ERJ B1 2 Ω, 1020 Thick Film Resistor ±1 % 1 W - ERJB1BF2R0U
  • RS Stock No. 228-0588
  • Mfr. Part No. ERJB1BF2R0U
Subtotal (1 reel of 5000 units)
MYR6,750.00
MYR1.35/unit
Currently unavailable
Vishay, IHLP, 1212 Shielded Surface Mount Inductor with a Metal Composite Core, 1 μH ±20 % 4.05 A Idc
  • RS Stock No. 248-8046P
  • Mfr. Part No. IHLP1212ABEV1R0M5A
Subtotal 5 units (supplied on a continuous strip)
MYR17.97
MYR3.594/unit
Limited stock
Panasonic ERA 120 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB124V
  • RS Stock No. 566-373
  • Mfr. Part No. ERA3AEB124V
Subtotal (1 pack of 5 units)
MYR2.07
MYR0.414/unit
Temporarily out of stock
Panasonic ERJPC3 15400 Ω, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B1542V
  • RS Stock No. 790-045P
  • Mfr. Part No. ERJPC3B1542V
Subtotal 10 units (supplied on a continuous strip)
MYR2.76
MYR0.276/unit
In Stock
RS PRO, 0603 Surface Mount Inductor with a Ceramic Core, 4.7 nH Multilayer 700 mA Idc
  • RS Stock No. 256-7719
Subtotal (1 tape of 50 units)
MYR6.45
MYR0.129/unit
In Stock
Wurth Elektronik 100 μF Capacitor 50V dc, Through Hole Radial Lead
  • RS Stock No. 839-8857
  • Mfr. Part No. 860040674004
Subtotal (1 pack of 10 units)
MYR14.30
MYR1.43/unit
Temporarily out of stock
Huber+Suhner 1399.17.0222 Rectangular Antenna with N Jack Connector, 617 MHz, 7125 MHz, Cellular
  • RS Stock No. 889-347
  • Mfr. Part No. 1399.17.0222
Subtotal (1 unit)
MYR4,880.26
MYR4,880.26/unit
In Stock
KEMET 8.2 nF Multilayer Ceramic Capacitor, 630V dc, ±10 %, Surface
  • RS Stock No. 769-7226
  • Mfr. Part No. C0805V822KBRACTU
Subtotal (1 pack of 50 units)
MYR33.00
MYR0.66/unit
In Stock
Vishay MKP 1837 Film Capacitor, ±1 %, 100 nF 100 V dc 63V ac, Through Hole
  • RS Stock No. 166-6487
  • Mfr. Part No. MKP1837410011
Subtotal (1 pack of 10 units)
MYR68.98
MYR6.898/unit
1
433
8184
Results per page

Guides & Articles

Capacitors Guide
In our comprehensive Capacitors Guide we look at MLCC's and the alternatives available
Read more
Variable Resistors Guide
Everything you need to know about variable resistors
Read more

Related links