What is 2SA1287?
This is FOR RELAY DRIVE POWER SUPPLY APPLICATION SILICON PNP EPITAXIAL TYPE. A relay allows a low-power electrical signal, such as from a microcontroller or sensor, to control a much larger current or voltage, such as required to drive a motor or light bulb. This allows a small electronic device to control a much larger one, or to isolate the low-power circuit from the high-power one. Relays are used in a wide range of applications, including automotive systems, HVAC systems, and computer power supplies. |
|
[PDF] Complete Technical Details can be found in the
2SA1287 datasheet
provided at this page. |
Datasheet Download (PDF) |
[ Detailed Data ] |
Q: What is a relay, and how does it work? A: A relay is an electromagnetic switch that uses an energized coil to open or close a circuit. When the coil is energized, it creates a magnetic field that pulls a contact armature towards it, closing a set of electrical contacts. When the coil is de-energized, the magnetic field collapses, and the contact armature returns to its original position, opening the contacts. Q: What are the types of relays? A: There are many types of relays, including electromagnetic relays, solid-state relays, thermal relays, reed relays, and time-delay relays, among others. Each type of relay has its unique design and application. Q: What is the purpose of a relay? A: The primary purpose of a relay is to switch electrical circuits on and off. It is commonly used in control circuits to control high-power loads or where a signal from a low-power circuit is used to control a higher power load. Q: What are the advantages of using a relay? A: Relays offer several advantages, including isolation of the controlling circuit from the controlled circuit, the ability to switch high power loads with low power circuits, and the ability to switch multiple circuits simultaneously. Manufacturers : ETC  |
ETC 2SA1287 TRANSISTOR FOR RELAY DRIVE POWER SUPPLY APPLICATION SILICON PNP EPITAXIAL TYPE |
Datasheet 2SA1287 PDF DownLoad ( ETC ) |