NGK U5054-48201 Ignition Coil 48201 Pencil Coil [1-Output Type]

【NGK U5054-48201 Ignition Coil 48201 Pencil Coil [1-output type] 】
■Product Description
Role of the Ignition Coil
In internal combustion engines using spark plugs, a high voltage of 20,000 to 35,000V is required to generate a spark in the combustion chamber during the compression stroke. An ignition coil is a type of transformer that converts the 12V battery voltage into the high voltage necessary for spark plug discharge. It basically consists of a primary coil, a secondary coil, and a core (iron core), and epoxy resin is filled into the case to ensure insulation between these parts.

Specifications
High Voltage Generation Principle of Ignition Coils
While there are various types of ignition coils with different external shapes and numbers of output terminals, the principle of high voltage generation is the same for all of them. The primary coil is connected to the battery via an igniter (switch). First, the ECU (engine control unit) switches the igniter to the ON state, allowing current to flow through the primary coil. This generates a bundle of magnetic flux, called magnetic flux, in the core (iron core) that serves as the axis of the primary coil, and the core (iron core) becomes an electromagnet. Then, when the ECU determines the engine ignition timing, it switches the igniter to the OFF state, stopping the current to the primary coil. As a result, the core (iron core) is no longer an electromagnet, and the magnetic flux inside the core (iron core) also disappears. When the magnetic flux inside the core (iron core) suddenly disappears, a high voltage is generated in the secondary coil, which shares the same core (iron core) as its axis, due to electromagnetic induction*, in proportion to the turns ratio of the primary and secondary coils. The high voltage generated in the secondary coil causes a spark to jump across the spark plug gap, initiating the combustion of the air-fuel mixture (gasoline + air).
*A coil has the property of generating voltage when the magnetic flux passing through it changes. This voltage generation phenomenon is called electromagnetic induction.
Since the voltage generated in a coil increases in proportion to the number of turns, ignition coils increase the winding of the secondary coil to generate high voltage.
Type: Pencil coil [1-output type]
Since the ignition coil is attached directly to each spark plug, a spark plug wire is not required. This is currently the most commonly adopted type by automobile manufacturers.
Compatible Manufacturers: Nissan/Mitsubishi
Compatible Genuine Part Numbers: 22448-AX001, MQ701132, 1N07-18-100
Compatible Models: [Nissan] AD (VAY12) [2006/12-2013/5]｜Cube (BNZ11/BZ11) [2002/10-2008/11]｜Cube Cubic (BGZ11) [2003/9-2008/11]｜March 1000 (K12) [2002/3-2003/6]/1200 (AK12) [2002/3-2010/7]/1400 (BK12/BNK12) [2002/3-2005/8] [Mazda] Familia (BVAY12) [2007/1-2018/6] [Mitsubishi] Lancer (CVAY12) [2008/11-2013/4]

■Notes on images
*Images are for illustration purposes only. Includes products with different sizes and colors. Product design and specifications are subject to change without notice. Please understand.

■Precautions
1. Always turn off the engine before inspection or replacement.
2. Please check for any oil adhesion or leakage around the spark plug hole. Oil adhesion or leakage can cause malfunction.
3. Perform inspection and replacement according to the service manual of each automobile manufacturer.
4. Please be careful when attaching and detaching the connector. Damage to the connector can lead to poor electrical continuity.
5. Do not use a product that has been dropped, as dropping or impacting it may cause cracks or damage to internal components.
6. Please use the ignition coil with the correct part number as described in this document.
7. Do not use the ignition coil described in this document for any purpose other than its intended use.
8. When storing, avoid high temperatures and humidity.
9. When the engine check (MIL) lamp illuminates, be sure to clear (reset) the diagnostic (self-diagnosis/OBD) error code according to the service manual or similar before (or after) replacing the ignition coil. Failure to clear the error code may lead to problems such as the engine check lamp not turning off.