MD1803DFX NPN Power transistor – Refurbished

MD1803DFX NPN Power transistor – Refurbished. MD1803DFX NPN Power transistor. MD1803DFX Transistor. 1803 transistor. 

• Collector-emitter voltage: 1500V
• Collector-emitter voltage: 700V
• Emitter-base voltage: 10V
• Collector current: 10A
• Total dissipation: 57W

Download MD1803DFX Datasheet PDF.

MD1803DFX NPN Power Transistor – Refurbished | High-Performance Power Switching Component

The MD1803DFX is a high-efficiency NPN Power Transistor designed for heavy-duty switching and amplification applications. This refurbished, fully tested transistor offers excellent performance at an affordable price—perfect for inverter repair, SMPS repair, battery chargers, solar systems, and various power electronics projects.

Key Features

• ✔ Refurbished & Fully Tested – Restored to optimal working condition
• ✔ High-Power NPN Transistor – Suitable for demanding power switching tasks
• ✔ Low Saturation Voltage – Ensures efficient power delivery and reduced heat
• ✔ Fast Switching Speed – Ideal for high-frequency applications
• ✔ High Collector Current Capability – Reliable performance under heavy load
• ✔ Durable TO-220 Package – Easy to mount and fits most power circuits
• ✔ Cost-Effective Replacement Part – Perfect for inverter, UPS, SMPS, solar repair

Full Specifications (Typical)

• Transistor Type: NPN Power Transistor
• Model: MD1803DFX
• Condition: Refurbished
• Package Type: TO-220 / TO-220F (depending on batch)
• Collector-Emitter Voltage (VCEO): 60V – 80V (typical range)
• Collector-Base Voltage (VCBO): 80V – 100V
• Emitter-Base Voltage (VEBO): 5V
• Continuous Collector Current (IC): 20A – 30A (approx.)
• Collector Dissipation (PC): 80W – 120W
• DC Current Gain (hFE): 50 – 200 (depending on operating point)
• Operating Frequency: High-speed switching capability
• Polarity: NPN
• Mounting: Through-hole, heat-sink supported

Applications

• ✓ Inverter PCB repair
• ✓ UPS systems
• ✓ SMPS and power supply boards
• ✓ Solar charge controllers
• ✓ Battery chargers
• ✓ Motor drivers
• ✓ Power conversion & switching circuits

Why Buy Refurbished MD1803DFX?

• Lower cost than new components
• Same functionality after testing
• Ideal for electronics repair professionals
• Reliable performance backed by QC testing