Motorola 2N6543 NPN High Voltage Switchmode Power Transistor TO-3 NOS

ITEM SPECIFICS
Brand: Motorola
Model: 2N6543
MPN: 2N6543
Type: NPN Bipolar Junction Transistor
Transistor Type: Power / Switchmode
Polarity: NPN
Maximum Collector Current: 5 A
VCEV Rating: 850 V
VCEO Rating: 450 V
Package / Case: TO-3
Mounting Style: Through-Hole / Chassis Mount
Number of Terminals: 3 including case collector connection
Application: High-Voltage Power Switching
Country/Region of Manufacture: Not specified
Component Marking: 2N6543 / 8052
Condition: New Old Stock

DESCRIPTION
Motorola 2N6543 high-voltage NPN switchmode power transistor in the classic TO-3 metal package.

The 2N6543 was designed for high-voltage, high-speed power switching applications where switching performance under inductive loads is important. Historical Motorola documentation identifies the device for applications including switching regulators, PWM inverters, motor controls, solenoid and relay drivers, and deflection circuits.

• Genuine vintage Motorola-marked 2N6543
• NPN bipolar power transistor
• High-voltage switchmode design
• 5 A maximum collector current
• 850 V VCEV rating
• 450 V VCEO rating
• TO-3 metal power package
• Through-hole / chassis-mount construction
• Suitable for legacy power-electronics repair and restoration
• Device marking includes 8052
• New Old Stock

The secondary marking “8052” is reproduced exactly as found on the component and is not being represented as a verified manufacturing date code.

COMPATIBILITY & CROSS-REFERENCE
The Motorola 2N6543 is a high-voltage NPN switchmode power transistor in a TO-3 package. Motorola documentation lists switching regulators, PWM inverters, motor controls, solenoid and relay drivers, and deflection circuits as applications. Verify pinout and ratings for your circuit before installation.

Q: What are the 2N6543 ratings?
A: 5 A maximum collector current, 850 V VCEV, and 450 V VCEO.

Q: What package is it?
A: TO-3 metal case, with the case as the collector connection.

Q: What are the listed applications?
A: Switching regulators, PWM inverters, motor controls, solenoid and relay drivers, and deflection circuits.

DISCLAIMER
New old stock component. Item may show normal cosmetic evidence of long-term storage and handling consistent with its age. No testing has been performed unless specifically stated. Please review the photographs carefully for the exact physical condition and markings of the item being offered. Buyer is responsible for verifying specifications, suitability, pin configuration, circuit requirements, and compatibility before installation.

LEGAL DISCLAIMER
Motorola is a trademark or trade name of its respective owner. American Industrial Parts Group is not an authorized distributor, dealer, or representative of Motorola. All trademarks, manufacturer names, product names, and part numbers are used solely for identification and reference purposes. No affiliation with or endorsement by the manufacturer is implied.

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