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LM339  consists of four independent precision voltage comparators with an offset voltage specification as low as 2 mV max for all four comparators. These were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage. Application areas include limit comparators, simple analog to digital converters; pulse, square wave and time delay generators; wide range VCO; MOS clock timers; multi vibrators and high voltage digital logic gates. When operated from both plus and minus power supplies, they will directly interface with MOS logic — where the low power drain of the LM339 is a distinct advantage over standard comparators. Features:- • Wide supply voltage range • Very low supply current drain (0.8 mA) — independent of supply voltage • Low input biasing current: 25 nA • Low input offset current: ±5 nA • Offset voltage: ±3 mV • Input common-mode voltage range includes GND • Differential input voltage range equal to the power supply voltage • Low output saturation voltage: 250 mV at 4 mA

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Once a purchased software package has been activated or an activation has been attempted through an online activation site, the package becomes none refundable But in serious matters, we can refund on gelatissimotp wallet. So you can use every product. We cannot add the software package to our stock if an activation has been completed or attempted.
We cannot issue a refund if a customer has purchased the wrong product. Rather then we can change it if he not try to active it
Example: A customer purchases a Windows software package for a Mac machine.

Exchanges

Microsoft Softwares will exchange software purchases for up to 30 days after order completion but only if the software has not been downloaded by the customer, you can also return your purchased software within 30 days if the software remains none downloaded for a full refund.

Redemption or Activation:

After purchasing keys, you will get a voucher code which is needed to redeem. this voucher code have a lifetime validity but once redeem it then you need to activate your windows or office within 7 working days.

Refund process

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How to initiate a Refund/Exchange

For any refund or exchange please open a create a refund or exchange request ticket here. 

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