Best Offers Free Shipping!!! Fused LM317 + LM337 / negative dual power adjustable power supply board/ Electronic Component Where To Buy

Best Offers - Free Shipping!!! Fused LM317 + LM337 / negative dual power adjustable power supply board/ Electronic Component Very Recommended

Where To Buy - Free Shipping!!! Fused LM317 + LM337 / negative dual power adjustable power supply board/ Electronic Component Best Offers

Best Offers Free Shipping!!! Fused LM317 + LM337 / negative dual power adjustable power supply board/ Electronic Component

Product ID : 1000001429078

Price : $6.80

Discount Price : $5.78

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Item specifics

• 
  Type:
  Voltage Regulator
  


• 
  Dissipation Power:
  1
  


• 
  Model Number:
  new
  


• 
  Operating Temperature:
  1
  


• 
  is_customized:
  Yes
  


• 
  Application:
  Computer
  


• 
  Supply Voltage:
  1
  


• 
  Condition:
  New
  

Product Description

note! ! Below $ 7 $ no tracking number

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 With resettable fuse LM317 + LM337 positive and negative dual power adjustable power supply Kit

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Product Description

parameter:

Board size approximately: length 62mm width 59mm high 30mm;

Input voltage: AC 5V- double dual AC 20V (only dual AC input);

Output DC: 1.3-25 V;

Current: 1 A;

Surge mode: linear buck regulator, the output voltage of the AC voltage is rectified and filtered after minus 3V.

After such input dual 12V, the regulator rectifier filter voltage is above 12 * 1.414 = 16.968V, the output voltage can 16.968-3V = 13.968V

Recommendation: input voltage (rectified smoothed voltage means rather than an AC voltage, AC input is rectified and filtered to 1.414 times, if the input voltage of 12V AC is rectified and filtered after 12 * 1.414 = 16.968V) at least higher than the output voltage is 3V, but do not be too high, too much pressure will only increase 317/337 power consumption, the chip heat, the output current can also be less, for example, as the input voltage is rectified and filtered voltage is 12V, output regulation to 5V, the regulator so that the pressure drop is above the chip 12-5 = 7V, if the time current

Is 0.5A, then the power regulator tube is 0.5 * 7 = 3.5W, the greater the power, the more severe heat.

FR-4 circuit plate board using military grade A material sheet, plate, and some stability tolerance parameters, A material behaved very tough, which is in the interests of a number of other relatively cheap price sheet. PCB board parameter elements are printed directly, without reference to a circuit diagram of the case can be soldered directly, very convenient.

1. The double-sided wiring, pads spray tin and tin increase Process pads, can withstand repeatedly desoldering, not easy to fall off;

(Bending down refers to non-human conditions caused) 2. Since less likely to buckle, poor plate will change with time and the environment arising from bending.

3. Impedance more stable and reliable;

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Welcome to our shop, enjoy the shipping here, you can contact with me freely if any question, usually we will send datasheet,code via email . hope to do business with you. 

 

payment:

we only accept the payment by credit card,western union.

We apologize that we cannot accept other payment methods, such as cheque or postal orders .

Shipping:

1. We Ship to Worldwide, but Italy, Nigeria, Brazil will take long delivery time .
2. Before buying, Please make sure your address is correct. Or not, please correct it before payment
3. Ship to worldwide from Hong Kong within 12-24 hours after payment completed received, and will give you the tracking number asap. sometimes we will send it by flat post air mail if just one low price order.Hope you understand.
4. we advise shipping by DHL or EMS,and we have gave a discount for you,you can received it in 4-9 business days.
5. it takes about 15-30days usually if shipping by CHina/Hong Kong post air mail

Feedback:

the feedback is very important for us, pls leave me a 5 stars feedback if you are satisfied with our service and our items,or pls contact with me if there are some problem with our items.we will solve it asap.

Warranty and Return:

1. 12-months Warranty for defective items (excluding items damaged and/or misused after receipt).

Buy with confidence

1. Refund or replacement request is available only the requests within 1 week after parcel received & returning the item as the same condition as received.
2. Please contact us to request a return authorization. Your name, auction number, and reason for return should be included in the email. All items returned must contain all original packaging materials.
3. Please repack the item carefully. Items returned will be tested and a new replacement will be shipped to the buyer immediately when found defective. In the event that a suitable replacement is not available then a refund will be issued. Shipping, handling and insurance fees are non refundable.
4. Return shipping is to be paid by the Buyer.

ABOUT US:

we have much more products, pls contact us if you need.welcome to wholesale. MUCH THANKS!!

Packaging Details

• 
  Unit Type:
  piece
  


• 
  Package Weight:
  0.1kg (0.22lb.)
  


• 
  Package Size:
  11cm x 11cm x 11cm (4.33in x 4.33in x 4.33in)
  

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