This is LM7912 three terminal voltage regulator used to output fix (-12)V. These regulators employ internal current limiting safe area protection and thermal shutdown for protection against virtually all overload conditions. Low ground pin current of the LM7912 regulator allows output voltage to be easily boosted above the preset value with a resistor divider. Commonly used in electronic circuits requiring a regulated power supply due to their ease-of-use and low cost.
LM7912 Regulator Specifications and Features:

To use it as a Voltage Regulator, connect your Input Supply to Input Terminal and Ground Terminal and take the regulated output from Output Terminal and Ground Terminal. Make sure ground terminals of both Input and Output supplies are same. You can also connect ceramic capacitors across input and output supplies to make the system more stable and reliable.
1×LM7905 Voltage Regulator IC
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
If you receive a product damaged during shipment, please notify us within 3 days of receiving the product, supported by proper pictures and a description. Once our support team accepts the return, we will provide a replacement or a complete refund, including the return shipping cost.
If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.
We don’t accept returns for products damaged due to improper use. Moreover, we don’t accept returns if the ordered product is not suitable for a specific application. Please read the product specifications and datasheet carefully before placing an order. Returns are accepted only within 3 days from the date of delivery.
We ship all over India with free shipping on all prepaid orders above ₹500. For Cash on Delivery (COD) orders, ₹80 will be charged for orders below ₹599 and ₹30 for orders above ₹599.
For any questions related to shipping, please contact our support team at support@quartzcomponents.com.
Note: The minimum order value for COD orders is ₹500.