Fingerprint Sensor AS608 - A Beginner's Guide
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →
EL817 are Photo transistor based photo coupler. A photocoupler, or optical isolator or an opto - isolator is a component that transfers electrical signals between two isolated circuits by using light. Opto - isolators prevent high voltages from affecting the system receiving the signal.
An opto-isolator connects input and output sides with a beam of light modulated by input current. It transforms useful input signal into light, sends it across the dielectric channel, captures light on the output side and transforms it back into electric signal.
QUICK SPECS:
- Current transfer ratio (CTR : 50 ~ 600% at IF = 5mA, VCE = 5V).
- High isolation voltage between input and output (Viso = 5000 V rms ).
- Creepage distance > 7.62 mm.
- Operating temperature up to + 110°C.
- Compact small outline package.
- Programmable controllers.
- System appliances, measuring instruments.
- Telecommunication equipments.
- Home appliances, such as fan heaters, etc.
- Signal transmission between circuits of different potentials and impedances.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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