L7812CD2T-TR by STMicroelectronics Design and production,in Shenzhen Jungu Technology Electronics Co., Ltd. Spot sales,And can pass Shenzhen Jungu Technology Electronics Co., Ltd. Purchasing。L7812CD2T-TR Price reference $ 0.966000。L7812CD2T-TR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information L7812CD2T-TR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial