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Introducing the 50PCS BD139 & BD140 Transistor Kit – a comprehensive set of 25 BD139 and 25 BD140 NPN power transistors housed in durable TO‑126 packages. Perfect for hobbyists, engineers, and repair technicians, this kit provides reliable voltage regulation and switching performance for a wide range of electronic projects.
Key Highlights
- Complete set: 25 × BD139 + 25 × BD140 transistors (total 50 pieces)
- TO‑126 (TO‑126) package for easy mounting and heat dissipation
- High current capability – up to 1.5 A continuous (BD139) and 1.1 A (BD140)
- Wide voltage range – 80 V (BD139) and 70 V (BD140) collector‑emitter rating
- Low saturation voltage for efficient power switching
- Ideal for voltage regulator circuits, motor drivers, audio amplifiers, and DIY projects
- Secure, anti‑static packaging to protect components during shipping
Technical Specifications
- BD139: VCEO = 80 V, IC = 1.5 A, hFE = 40‑160
- BD140: VCEO = 70 V, IC = 1.1 A, hFE = 30‑160
- Package type: TO‑126 (TO‑126)
- Maximum power dissipation: 12.5 W (BD139) / 12 W (BD140)
- Operating temperature: –55 °C to 150 °C
- Lead configuration: standard 3‑lead layout for easy soldering
Why Choose This Kit?
- Convenient Quantity – No need to order individual transistors; you receive a balanced mix of BD139 and BD140 for any design requirement.
- Cost‑Effective – Bulk pricing saves you money compared to single‑unit purchases.
- Reliable Performance – Trusted part numbers widely used in automotive, industrial, and consumer electronics.
- Easy Integration – TO‑126 form factor fits standard heat‑sink designs and breadboards.
- Perfect for Learning – Ideal for students and makers exploring transistor‑based voltage regulation and switching circuits.
Typical Applications
- Linear voltage regulators and power supplies
- Motor speed controllers and driver circuits
- Audio amplifiers and pre‑amplifier stages
- Switching power converters
- Automotive electronics and LED drivers
- DIY hobby projects and prototype boards
Upgrade your electronics toolbox with the 50PCS BD139 BD140 (25 + 25) TO‑126 Voltage Regulator IC Transistor Kit and enjoy reliable, high‑performance switching for all your next projects.
Price: Original price was: $ 3.44.$ 2.37Current price is: $ 2.37.