This part is a kind of semiconductor called HEL-10D471K.
Function of this product has VARISTOR.
Manufacturers : Hongzhi Enterprises
Image and pinout :
Some of the text within the PDF file :
APPROVED SHEET Product Part No. UL File No. CSA File No. VDE File No. CQC File No. You Part No. : : VARISTORS 5D / 7D / 10D / 14D / 20D Series E197799 215101 4008621 CQC04001010844-48 : : : : : FOR CUSTOMER APPROVAL PASS APPROVAL APPROVAL DRAFT DATE 孙露 2008-10-28 鸿 志 电 子 有 限 公 司 HONGZHI ENTERPRISES LTD. ADD:No.6,Pujiang Road,Shantou,Guangdong TEL : + 86 – 754 – 8885 – 4060 FAX : + 86 – 754 – 8888 – 8417 E-mail: hel@hongzhi.net http://www.hongzhi.net 1 PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn http://www.Datasheet4U.com Hongzhi Enterprises Ltd 5D HEL VARISTOR Max. Energy Typical Max. Continuous Applied Voltage Voltage at DC 1mA (25°C) Class Max. Peak Surge Capac Current Voltage Current Rating itance (8/20 μsec) at Class [ ... ]