NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator, US $2.99 – Picture 0

NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator, US $2.99 – Picture 1

Ne555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator

US $2.99

Shenzhen, Guangdong, China
Jan 29th

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Attention: The photos are for your reference only. Product Introduction (We do wholesale, please inquire us for the detail.) Features: Size: 31mm * 22mm; Main chip: NE555; Input Voltage: 5V-15VDC. when power supply is 5V , the output current can be 15MA around;when 12V power supply, the output current can 35MA around; Input current: >=100MA Output amplitude: 4.2V V-PP to 11.4V V-PP. (Different input voltage, the output amplitude will be different) Maximum output current: >=15MA (5V power supply, V-PP greater than 50%), >=35MA (12V power supply, V-PP greater than 50%) Output with LED indication (low level ,LED will on; high level, LED will off; low frequency, the LED flashes); The output frequency range is selectable: LF file: 1Hz ~ 50Hz IF file: 50Hz ~ 1kHz High-frequency file: 1KHz ~ 10kHz HF file: 10kHz ~ 200kHz The output duty cycle can fine-tune;duty cycle and frequency is not separately adjustable;adjusting the duty cycle will change the frequency; The output frequency is adjustable: Period T = 0.7 (RA +2 RB) C RA, RB is 0-10K adjustable; Low profile when C = 0.001UF; IF stalls C = 0.1UF; High-frequency file C = 1UF; HF stalls C = 100UF; so buyers can calculate the frequency of the waveform. Application: As a square wave signal generator, generates a square wave signal used for experimental development. Used to drive a stepper motor for generating a square wave drive signal. Generate adjustable pulse for MCU. Generate adjustable pulse, to control circuitry associated. Package including: 1PCS/Lot NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator Terms & Conditions Sales Terms & Conditions Please contact with us in English only, we are sorry for the inconvenience caused to you, thank you! Payment Terms & Conditions We can accept PayPal on eBay selling, please settle payment within 2 days after the auction ends, if you have any difficulty regarding payment, please contact with us ASAP. Feedback & Case/Dispute When you get the item you bought, if you satisfied with it and our service, please leave us Positive Feedback & 5 Star DSR to us. If you have any problem, please contact with us in advance. We can give you response within 24 hours when we get your message, we'll try our best to give you the better solution. Please don't open Case / Dispute or leave Negative / Neutral to us directly, or you'll assume the responsibility/result. Shipping / Postage Terms & Conditions Carrier: China / Hong Kong / Singapore / Swiss / Sweden / Netherlands / Belgium Post (ship to all over the world except US) US: It's required to add extra shipping cost than other country via ePacket Delivery (eBay Policy) from China with tracking number (7-15 business days). Shipping Detail Shipping Method International Flat Shipping (Economy Int'l Shipping) Registered Air Mail (Standard Int'l Shipping) FedEx/DHL/UPS/TNT/EMS Delivery Time 10-20 Working Days 10-20 Working Days 3-7 Working Days Shipping Tracking Without Tracking Number Registered Airmail Parcel / Note: 1. If you have selected "Economy Int'l Shipping" with extra Registered Charge, you'll get the tracking number on the eBay transaction as the following example image in about 1-2 working days after your payment: 2. All the tracking number can be tracked in the following website (http://www.17track.net/index_en.shtml) in about 2-3 working days later after we ship out. Please allow 10-20 working days (depends on where you are) for delivery, because all item will be shipped from our our warehouse in China via Air Mail. The item will be posted to you within 1-2 working day generally after the payment is cleared on seller's side. All the fee & tax in oversea must be paid by buyer. Return & Replacement Terms & Conditions Postage is not returnable. We will refund you the price of the item less postage. Seller is not responsible for the postage of returning items. Buyer can return the item in the original package within 7 days upon receiving if you are not happy with it/ We will refund you or send replacement to you within 3 working day after the item is received. Welcome to visit our store again. On Dec-08-14 at 12:34:51 PST, seller added the following information: