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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Inductors
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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168773 Products showing for Passive Components

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Temporarily out of stock
Yageo PU 0.3 mΩ, 3921 Metal Plate Surface Mount Resistor ±1 % 9 W - PU3921FKNP90U3L
  • RS Stock No. 199-5950
  • Mfr. Part No. PU3921FKNP90U3L
Subtotal (1 reel of 3000 units)
$3,441.00(exc. GST)
$1.147/unit
In Stock
Yageo RC 240 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - RC1206FR-07240KL
  • RS Stock No. 199-5817
  • Mfr. Part No. RC1206FR-07240KL
Subtotal (1 tape of 100 units)
$2.70(exc. GST)
$0.027/unit
Last RS stock
KOA RN73H 9.1kΩ, 0402 (1005M) Thin Film SMD Resistor ±0.1% 0.06W
  • RS Stock No. 178-6654
  • Mfr. Part No. RN73H1ETTP9101B25
Subtotal (1 reel of 500 units)
$100.00(exc. GST)
$0.20/unit
Currently unavailable
Yageo PU 4 mΩ, 5931 Metal Plate Surface Mount Resistor ±1 % 5 W - PU5931FKMT50R004L
  • RS Stock No. 199-5987
  • Mfr. Part No. PU5931FKMT50R004L
Subtotal (1 reel of 1500 units)
$2,028.00(exc. GST)
$1.352/unit
In Stock
Panasonic ERJ 10 Ω, 1210 Thick Film Surface Mount Resistor ±5 % 0.5 W - ERJ14YJ100U
  • RS Stock No. 176-3497
  • Mfr. Part No. ERJ14YJ100U
Subtotal (1 reel of 1000 units)
$73.00(exc. GST)
$0.073/unit
In Stock
Yageo PE_L 470 mΩ, 0402 Current Sensing Surface Mount Resistor ±1 % 0.13 W - PE0402FRF7W0R47L
  • RS Stock No. 199-5876
  • Mfr. Part No. PE0402FRF7W0R47L
Subtotal (1 tape of 10 units)
$6.54(exc. GST)
$0.654/unit
In Stock
Panasonic ERJ 12.1 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJ3EKF1212V
  • RS Stock No. 176-3488
  • Mfr. Part No. ERJ3EKF1212V
Subtotal (1 reel of 1000 units)
$17.00(exc. GST)
$0.017/unit
Temporarily out of stock
Yageo PU 1 mΩ, 3921 Metal Plate Surface Mount Resistor ±1 % 5 W - PU3921FKMP90R001L
  • RS Stock No. 199-5932
  • Mfr. Part No. PU3921FKMP90R001L
Subtotal (1 reel of 3000 units)
$3,132.00(exc. GST)
$1.044/unit
Currently unavailable
TE Connectivity GRGP 390 Ω, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W - CRGP0603F390R
  • RS Stock No. 176-4806
  • Mfr. Part No. CRGP0603F390R
Subtotal (1 reel of 5000 units)
$185.00(exc. GST)
$0.037/unit
In Stock
Wurth Elektronik 1 nF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 260-2330
  • Mfr. Part No. 885012204006
Subtotal (1 tape of 200 units)
$3.20(exc. GST)
$0.016/unit
In Stock
Yageo PA 1 mΩ, 2512 Current Sensing Surface Mount Resistor ±1 % 1 W - PA2512FKF070R001E
  • RS Stock No. 199-5855
  • Mfr. Part No. PA2512FKF070R001E
Subtotal (1 tape of 10 units)
$5.03(exc. GST)
$0.503/unit
Currently unavailable
Yageo PU 0.3 mΩ, 5931 Metal Plate Surface Mount Resistor ±1 % 5 W - PU5931FKN130U3L
  • RS Stock No. 199-5990
  • Mfr. Part No. PU5931FKN130U3L
Subtotal (1 tape of 5 units)
$15.68(exc. GST)
$3.136/unit
Currently unavailable
TE Connectivity CRGP 68 Ω, 2010 Thick Film Surface Mount Resistor ±1 % Surface 1.25 W - CRGP2010F68R
  • RS Stock No. 176-4334
  • Mfr. Part No. CRGP2010F68R
Subtotal (1 reel of 4000 units)
$528.00(exc. GST)
$0.132/unit
Temporarily out of stock
Yageo PE_L 30 mΩ, 1206 Current Sensing Surface Mount Resistor ±1 % 0.25 W - PE1206FRM070R03L
  • RS Stock No. 199-5893
  • Mfr. Part No. PE1206FRM070R03L
Subtotal (1 reel of 4000 units)
$632.00(exc. GST)
$0.158/unit
Currently unavailable
TE Connectivity CRGP 4.7 kΩ, 2512 Thick Film ±1 % 2 W - CRGP2512F4K7
  • RS Stock No. 176-4499
  • Mfr. Part No. CRGP2512F4K7
Subtotal (1 reel of 500 units)
$139.50(exc. GST)
$0.279/unit
Currently unavailable
TE Connectivity CRGP 82 kΩ, 2512 Thick Film ±1 % 2 W - CRGP2512F82K
  • RS Stock No. 176-4304
  • Mfr. Part No. CRGP2512F82K
Subtotal (1 reel of 4000 units)
$804.00(exc. GST)
$0.201/unit
Last RS stock
TE Connectivity CRGP 15 Ω, 1206 Thick Film Surface Mount Resistor ±1 % Surface 0.5 W - CRGP1206F15R
  • RS Stock No. 176-5263
  • Mfr. Part No. CRGP1206F15R
Subtotal (1 reel of 500 units)
$46.00(exc. GST)
$0.092/unit
Currently unavailable
Yageo PU 4 mΩ, 5931 Metal Plate Surface Mount Resistor ±1 % 5 W - PU5931FKM130R004L
  • RS Stock No. 199-5972
  • Mfr. Part No. PU5931FKM130R004L
Subtotal (1 tape of 5 units)
$15.97(exc. GST)
$3.194/unit
In Stock
Yageo PT 82 mΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - PT0603FR-070R082L
  • RS Stock No. 199-6008
  • Mfr. Part No. PT0603FR-070R082L
Subtotal (1 tape of 25 units)
$8.35(exc. GST)
$0.334/unit
Temporarily out of stock
Yageo PU 1 mΩ, 3921 Metal Plate Surface Mount Resistor ±1 % 2 W - PU3921FKM130R001L
  • RS Stock No. 199-5917
  • Mfr. Part No. PU3921FKM130R001L
Subtotal (1 reel of 3000 units)
$2,196.00(exc. GST)
$0.732/unit
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