Motorola 2N6546 NPN Silicon Power Transistor TO-3 Vintage USA Semiconducto
$19.95
Original Motorola 2N6546 NPN silicon power transistor housed in the classic TO-3 metal package. These rugged high-power devices were commonly used in industrial power supplies, audio amplifiers, motor control systems, instrumentation, and OEM electronic equipment.
Genuine Motorola semiconductors remain desirable for restoration and repair of vintage equipment where original components are preferred over modern substitutes. Ideal for technicians, restorers, collectors, and electronics enthusiasts maintaining legacy hardware.
Compatible Radios / Boards
Equipment Commonly Using the Motorola 2N6546
The 2N6546 was primarily a high-power general-purpose NPN transistor, not a specialized RF transistor. It was commonly found in:
Industrial Equipment
Motor control drives
Conveyor systems
Factory automation equipment
Industrial power regulators
Process control systems
Linear Power Supplies
Laboratory bench power supplies
Commercial DC power supplies
Battery chargers
Telecommunications power systems
OEM power regulation assemblies
Audio Equipment
Vintage solid-state power amplifiers
PA amplifiers
Mixing consoles
Broadcast audio equipment
High-power audio output stages
Test Equipment
Oscilloscopes
Signal generators
Measurement instruments
Calibration equipment
Laboratory instrumentation
Communications Equipment
Commercial radio power supplies
Base station power regulation circuits
Telephone system equipment
Telecommunications infrastructure hardware
OEM Electronics
Elevator controls
HVAC controllers
Emergency backup systems
Medical equipment power sections
Military and aerospace support elect
RF Boneyard Bench Notes
Final Testing / Bench Notes
DCA75 tested as NPN BJT.
hFE: 21 at IC 5.00 mA
VBE: 0.495 V at IB 1.00 mA
VCE(sat): 0.067 V at IC 5.00 mA / IB 1.00 mA
IC leakage: 0.000 mA
Bench Result: Clean tested vintage Motorola 2N6546. Normal transistor behavior, usable gain, low saturation reading, and zero measured leakage on tester.
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