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BT66/UM66 Melody Generator Musical Alarm IC TO-92
₹35.00
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BT66 / UM66 Melody Generator Musical Alarm IC (TO-92) delivers a pre-programmed musical tone for alarms, toys, and consumer electronics. Designers use it to add sound generation with minimal external components, making circuits simple and cost-effective.
Key Features:
- Integrated Melody Generator: Produces a built-in musical tone when powered.
- Low Power Consumption: Operates efficiently on small batteries for portable devices.
- Single External Resistor: Controls oscillation frequency with minimal components.
- Compact Package: TO-92 plastic package fits directly on standard PCBs.
- Wide Operating Voltage: Works across common low-voltage DC ranges for flexibility.
Technical Specifications:
- Operating Voltage (VDD): 1.5 V to 4.5 V
- Typical Operating Current: ~150 µA at 3 V
- Oscillator Type: RC oscillator with external resistor
- Output: Melody signal (AC-coupled or amplified for driving speaker)
- Frequency Adjustment: Determined by external resistor value
- Operating Temperature Range: −10 °C to +60 °C
Mechanical Specifications:
- Package: TO-92 plastic encapsulated
- Mounting: Through-hole mounting suitable for wave soldering
- Lead Material: Tin-plated copper leads
- Body Material: Molded epoxy for insulation and durability
Dimensions:
- Package Width: ~4.6 mm
- Body Height: ~4.0 mm
- Lead Pitch: 2.54 mm (standard TO-92 spacing)
- Overall Length: ~13.0 mm including leads
Pinout and Wiring:
- Pin 1: VDD (positive supply)
- Pin 2: GND (ground reference)
- Pin 3: Output (melody signal)
- Wiring Note: Connect a suitable resistor to set oscillator frequency. Couple output to transistor amplifier or driver for speaker operation.
Datasheet Reference:
- Download the UM66 / BT66 melody generator datasheet for detailed electrical data, oscillator resistor values, and example circuits.
Applications:
- Musical Doorbells: Generate melody sound on trigger input.
- Toys and Games: Add musical sound effects to battery-powered devices.
- Electronic Greetings: Implement melody playback in greeting cards and novelty items.
- Alarm Systems: Provide melody-based audible alerts in small electronic alarms.
Equivalent Models:
- UM66T Series: Variants with different pre-programmed melodies.
- BT66T: Alternative part number used in equivalent applications.
- HT82V733: Melody IC with similar functionality (check compatibility before substitution).
Package Includes:
- 1 x BT66 / UM66 Melody Generator Musical Alarm IC (TO-92)
Additional information
| Weight | 1 g |
|---|
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