Power Transistor BD250 PNP, 12A TO-247

Power Transistor BD250 PNP, 12A TO-247

Transistors

Reference: TRBD250

Part.No: BD250

€1.96

Last items in stock

Immediate Dispatch

The BD250 is a high-power PNP Bipolar Junction Transistor (BJT) in a TO-247 package. Engineered for professional audio amplifiers, switching applications, and demanding current loads up to 12A. Complementary pair to the NPN BD249.

Add to cart

Subscribe To When In Stock

You have successfully subscribed to this product

Description
Product Details

BD250 High-Power PNP Transistor – Professional Audio & Heavy-Duty Switching

The BD250 is a robust PNP power transistor designed for high-current applications, particularly in professional audio amplifiers and output stages. With its substantial heat dissipation capability and complementary pairing with the BD249 (NPN), it delivers reliable performance in push-pull and class AB amplifier configurations.

Functions & Applications

High Current Capacity: Handles up to 12A continuous collector current, suitable for demanding audio and switching loads.
TO-247 Package: Large metal mounting tab for direct heatsink attachment with M3 screw, excellent thermal management.
Complementary Pair: Engineered to work perfectly alongside the BD249 NPN for symmetrical push-pull amplifier designs.
Professional Audio Grade: Industry standard for PA amplifiers and professional-grade output stages.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-247
Max Collector Current (Ic)	12A
Collector-Emitter Voltage (Vceo)	60V
Power Dissipation (Pd)	80W
Mounting Type	TO-247 with Heatsink Tab (M3)

Frequently Asked Questions

Q: What heatsink and thermal interface do I need for the BD250?
A: Use an aluminum heatsink with at least 1–2 K/W thermal resistance. Apply thermal paste (or thermal pad) and an isolating mica pad between the transistor and heatsink to prevent electrical short circuits. Secure with an M3 screw.

Q: Can I use BD250 and BD249 together in a push-pull amplifier?
A: Yes, this is their intended use. The BD250 (PNP) and BD249 (NPN) are complementary pairs designed to work together in symmetric class AB output stages. Ensure proper biasing and thermal management for both.

Notes

Heavy-duty power transistor requiring adequate heatsinking and thermal management. Always use isolating mica pad and thermal paste; secure with M3 screw. Complementary to BD249 NPN.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: PNP
Transistor Case Style: TO-247

16 other products in the same category:

Transistor 2SC2383 NPN, 1A TO-92

Transistors

Transistor 2SC2383 NPN, 1A TO-92

Reference:

TR2SC2383

The 2SC2383 is a high-voltage NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Designed for switching and amplification in control circuits and video applications requiring elevated collector-emitter voltage ratings.

In Stock

Transistor BC441 NPN, 60V, TO-39

Transistors

Power Transistor BC441 NPN, 2A TO-39

Reference:

TRBC441

The BC441 is a medium-power NPN Bipolar Junction Transistor (BJT) in a metal TO-39 package. Designed for driver stages, audio output and general-purpose switching applications requiring higher current and voltage margins than small-signal parts.

Last items in stock

Transistor 2SD261 NPN, 0.5A TO-92

Transistors

Transistor 2SD261 NPN, 0.5A TO-92

Reference:

TR2SD261

The 2SD261 is a general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Reliable for low- to medium-current switching and amplification in hobby electronics, hobby robotics, and educational projects.

In Stock

Transistor 2SC634 NPN, 0.2A TO-92

Transistors

Transistor 2SC634 NPN, 0.2A TO-92

Reference:

TR2SC634

The 2SC634 is a general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Designed for reliable switching and amplification in hobby electronics, educational projects, and small signal circuits.

In Stock

Transistor AF186 PNP Germanium, UHF TO-72

Transistor AF186 PNP Germanium, UHF TO-72 2

Transistors

Transistor AF186 PNP Germanium, UHF TO-72

Reference:

TRAF186

The AF186 is a PNP Germanium BJT in a TO-72 metal can package, purpose-built for UHF RF amplification in vintage television tuners and radio receivers. A classic component from the golden age of analog electronics.

In Stock

Transistor 2N2907 PNP, 0.6A TO-92

Transistors

Transistor 2N2907 PNP, 0.6A TO-92

Reference:

TR2N2907

The 2N2907 is a reliable PNP Bipolar Junction Transistor (BJT) in a TO-92 package. Optimized for small signal amplification and switching in general-purpose electronic circuits, hobby projects and educational applications.

In Stock

Transistor 2SA950 PNP, 0.8A TO-92

Transistors

Transistor 2SA950 PNP, 0.8A TO-92

Reference:

TR2SA950

The 2SA950 is a reliable PNP Bipolar Junction Transistor (BJT) in a TO-92 package. Optimized for small-signal amplification and low-power switching in general-purpose audio, switching, and amplification circuits.

In Stock

Transistor AC152 PNP Germanium, TO-1

Transistors

Transistor AC152 PNP Germanium, TO-1

Reference:

TRAC152

The AC152 is a PNP Germanium Bipolar Junction Transistor in a TO-1 metal can package. A classic vintage transistor ideal for restoring and repairing original European audio amplifiers and low-frequency circuits from the 1960s and 1970s.

Last items in stock

Transistor BC148 NPN 20V 0.1A 0.3W 85MHz

Transistors

Transistor BC148 NPN 20V 0.1A 0.3W 85MHz

Reference:

TRBC148

Το BC148 είναι ένα NPN Bipolar Junction Transistor (BJT) γενικής χρήσης σε θήκη TO-92. Κλασικό τρανζίστορ μικρού σήματος, κατάλληλο για ενίσχυση σε ακουστικές συχνότητες και switching χαμηλής ισχύος.

In Stock

Transistor BF254 NPN, RF/IF Amplifier TO-92

Transistors

Transistor BF254 NPN, RF/IF Amplifier TO-92

Reference:

TRBF254

The BF254 is a classic NPN BJT in TO-92 package, purpose-designed for AM intermediate frequency (IF) amplification at 455 kHz. A trusted workhorse in vintage radio design and RF/IF signal processing.

In Stock

Transistor AFY13 PNP, TO-72

Transistor AFY13 PNP, TO-72 2

Transistors

Transistor AFY13 PNP, TO-72

Reference:

TRAFY13

The AFY13 is a professional-grade PNP Germanium BJT in a TO-72 package with shielded leads. Engineered for RF and sensitive signal applications in industrial and telecommunications equipment.

In Stock

Transistor 2SA509

Transistors

Transistor 2SA509

Reference:

TR2SA509

Το 2SA509 είναι ένα PNP Bipolar Junction Transistor (BJT) πυριτίου της Toshiba, σε θήκη TO-92. Κατάλληλο για ενίσχυση ασθενών σημάτων και switching σε κυκλώματα ήχου και γενικής χρήσης PNP.

In Stock

Transistor BF195 NPN, RF/IF TO-92

Transistors

Transistor BF195 NPN, RF/IF TO-92

Reference:

TRBF195

The BF195 is a classic NPN Bipolar Junction Transistor (BJT) in a TO-92 package, optimized for RF and IF applications. Widely used in radio receivers as an oscillator, mixer, or IF amplifier stage, the BF195 delivers low-capacitance performance ideal for high-frequency circuits.

In Stock

Transistor BF158 NPN, Video/RF TO-72

Transistor BF158 NPN, Video/RF TO-72 2

Transistors

Transistor BF158 NPN, Video/RF TO-72

Reference:

TRBF158

The BF158 is a high-frequency NPN BJT transistor in a shielded TO-72 package, purpose-built for wideband video and RF amplification. Originally designed for television IF (Intermediate Frequency) amplifier stages, it remains a classic choice for vintage electronics restoration and RF applications.

In Stock

Transistor 2SC1740 NPN, 0.15A TO-92

Transistors

Transistor 2SC1740 NPN, 0.15A TO-92

Reference:

TR2SC1740

The 2SC1740 is a general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Widely used for small-signal amplification and low-power switching in audio, logic circuits and DIY electronics projects.

In Stock

Power Transistor BD244 PNP, 10A TO-220

Transistors

Power Transistor BD244 PNP, 10A TO-220

Reference:

TRBD244

The BD244 is a complementary PNP power transistor in a TO-220 package, designed for high-current switching and audio amplification. It pairs perfectly with the BD243 (NPN) for symmetrical push-pull output stages in power supplies and audio amplifiers.

Last items in stock

Product added to wishlist

Product added to compare.