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Home / Prototyping / Active & Passive Parts / HK66T-19 Melody Chip 'Für Elise' TO-92C$ 1.99
Availability: In stock
Title Range Discount bulk discount 3 - 9 10% C$ 1.79 bulk discount 10 - 24 15% C$ 1.69 bulk discount 25 + 18% C$ 1.63
HK66T-19 Melody Chip plays 'Für Elise' continuously after connecting it to a 3-4.5V supply voltage.
After connecting to the supply voltage, it always starts with the 1st note.
The HK66T series melody chips can drive a piezo speaker directly, or a dynamic speaker using a transistor. Please see the datasheet for the connections.
Typical applications are door bells, alarm clocks or greeting cards.
We offer the HK66T with 4 different melodies:
You can check the sound samples before you buy to make sure you like the melody.
Operating voltage: 3.0 - 4.5 V
Pin 1 = GND
Listen to sound sample
Download datasheet
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m.p (verified owner) –
(Copied and pasted from my Jingle Bells -0A review)
Got four of these devices a week ago and have been tinkering with them: three Jingle Bells (HK66T-0A) and one Fur Elise (HK66T-19). All four worked out of the box using various piezo speakers I had kicking around and an LP2950ACZ-3.3 to provide power. Also worked directly from a fresh CR2032 battery.
The sound is very reminiscent of 1980s and 90s Radio Shack equipment but in a tiny, low power TO-92 case.
They’re not going to knock any walls down but they’re loud enough to be heard across a room and will quickly make you the “favourite” person in a group if you have it on repeat. :-)
Bottom line: works well, very easy to use (pay attention to Vdd and Vss in the datasheet), good price, and great to build into a little cheesy gift or decoration!