Overview
The Motorola 6-6446 is a premium carbon composition fixed resistor rated at 4.7 megohms (4.7MΩ) with 1/2W power dissipation capability and ±10% tolerance. Featuring classic axial lead termination, this NOS (New Old Stock) component delivers reliable performance in vintage audio equipment, test instruments, measurement devices, and consumer electronics requiring high-resistance network applications.
Key Features
- Resistance Value: 4.7 megohms (4,700,000 Ω)
- Power Rating: 1/2 watt (0.5W)
- Tolerance: ±10% (standard for carbon composition)
- Construction: Carbon composition element with excellent stability
- Termination: Axial leads, through-hole mounting
- Condition: New Old Stock—never soldered, original packaging
- Applications: Biasing networks, voltage dividers, input/output networks, filter circuits
Technical Specifications
- Resistance: 4.7 MΩ
- Power Rating: 0.5 W (1/2W)
- Tolerance: ±10%
- Element Type: Carbon composition
- Lead Style: Axial
- Typical Operating Temperature Range: -55°C to +125°C (standard for carbon film/composition)
- Manufacturer: Motorola
- Part Number: 6-6446
Typical Applications
- Vintage tube radio and amplifier bias networks
- Audio equipment input coupling and grid-leak networks
- Measurement instruments and analog test equipment
- High-impedance sensing and signal conditioning circuits
- Leakage current isolation in precision analog circuits
- Vintage consumer electronics restoration and repair
Compatibility & Replacements
Compatible With
- Vintage Motorola consumer electronics
- Mid-20th century audio equipment (radios, amplifiers, phonographs)
- Analog measurement and test instruments
- Any circuit requiring 4.7M Ohm, 1/2W fixed resistor with ±10% tolerance
- Through-hole PCB mounting applications
Replaces / Drop-In Replacement For
This unit is an exact NOS replacement for original Motorola 6-6446 components in vintage equipment. Verify part compatibility with original schematic or PCB before ordering for critical applications.
Works With
- Standard through-hole soldering techniques and equipment
- Vintage and modern analog circuit designs requiring 4.7MΩ fixed resistors
- Lead-based and lead-free solder
- Breadboard and prototype applications
