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• note! ! Below $ 7 $ no monitoring number With resettable fuse LM317 + LM337 wonderful and unfavorable twin energy adjustable power supply Kit Product Descriptionparameter:Board length approximately: size 62mm width 59mm excessive 30mm;Input voltage: AC 5V- double dual AC 20V (only dual AC input);Output DC: 1 V;Current: 1 A;Surge mode: linear dollar regulator, the output voltage of the AC voltage is rectified and filtered after minus 3V such enter dual 12V, the regulator rectifier clear out voltage is above 12 * 1 = 16, the output voltage can 16 = 13: enter voltage (rectified smoothed voltage potential rather than an AC voltage, AC input is rectified and filtered to one times, if the input voltage of 12V AC is rectified and filtered after 12 * 1 = 16) at the very least higher than the output voltage is 3V, but do not be too high, an excessive amount of strain will solely develop 317/337 energy consumption, the chip heat, the output latest can also be less, for example, as the input voltage is rectified and filtered voltage is 12V, output legislation to 5V, the regulator so that the strain drop is above the chip 12-5 = 7V, if the time currentIs 0, then the ability regulator tube is zero * 7 = 3, the greater the power, the more severe heat circuit plate board using military grade A material sheet, plate, and a few steadiness tolerance parameters, A materials behaved very tough, which is in the pursuits of several different comparatively reasonably-priced payment sheet PCB board parameter points are revealed directly, with out connection with a circuit diagram of the case can be soldered directly, very convenient The double-sided wiring, pads spray tin and tin expand Process pads, can withstand over and over desoldering, tough to fall off;(Bending down refers to non-human situations caused) 2 Since less prone to buckle, deficient plate will change with time and our environment springing up from bending Impedance extra steady and reliable; to our shop, enjoy the shipping here, you could possibly touch with me freely if any question, usually we will ship datasheet,code through electronic mail hope to do business with you payment: we solely settle for the charge by credit card,western union express regret that we can't accept other price methods, comparable to cheque or postal orders : We Ship to Worldwide, yet Italy, Nigeria, Brazil will take long shipping time Before buying, Please make certain your tackle is correct Or not, please appropriate it before price Ship to international from Hong Kong inside 12-24 hours after price completed received, and could give you the tracking quantity asap occasionally we can send it through flat post air mail if just one low cost order you already know we advise delivery via DHL or EMS,and we've gave a discount for you,you can obtained it in 4-9 enterprise days it takes about 15-30days usually if transport via CHina/Hong Kong post air mail Feedback:the feedback is very important for us, pls depart me a five stars suggestions while you are satisfied with our service and our items,or pls touch with me if there are some concern with our items will solve it asap and Return: 12-months Warranty for defective items (excluding goods broken and/or misused after receipt) Buy with confidence Refund or substitute request is obtainable solely the requests within 1 week after parcel obtained & returning the article because the same situation as acquired Please touch us to request a go back authorization Your name, auction number, and reason behind return must be incorporated within the e-mail All goods returned must involve all customary packaging supplies Please repack the object intently Items returned could be examined and a new substitute could be shipped to the buyer straight when stumbled on faulty In the event that a appropriate substitute is not out there then a reimbursement might be issued Shipping, dealing with and insurance costs are non refundable Return shipping is to be paid by the Buyer ABOUT US:we have way more products, pls touch us if you want to wholesale MUCH THANKS!!&;

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