Transistor BD226 NPN, 45V, 1.5A, TO-126

Transistor BD226 NPN, 1.5A TO-126

Transistors

Reference: TRBD226

Part.No: BD226

€1.20

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The BD226 is an NPN Bipolar Junction Transistor (BJT) rated for 45V / 1.5A, housed in a TO-126 package. Suitable for driver-stage amplification and medium-power switching in audio, motor control and general-purpose circuits.

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Description
Product Details

BD226 NPN Transistor - Driver-Stage Performance in TO-126

The BD226 is an NPN transistor built for medium-power roles that sit between small-signal switching and full power-stage duty, such as driving output transistors in audio amplifiers or switching small motors and relays. Its TO-126 package gives it a tab for heatsinking when the extra thermal margin is needed, while remaining compact enough for general prototyping.

Functions & Applications

45V / 1.5A Rating: Enough headroom for driver stages and small motor/relay switching beyond typical small-signal transistors.
TO-126 Package: Includes a mounting tab for an optional heatsink, improving thermal handling versus TO-92 parts.
NPN Polarity: Straightforward high-side/low-side switching design in standard NPN topologies.
Through-Hole Mounting: Easy to hand-solder onto prototyping boards and PCBs.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-126
Collector-Emitter Voltage (Vceo)	45V
Max Collector Current (Ic)	1.5A
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Can the BD226 drive a small DC motor or relay directly?
A: Yes, as long as the load current stays within the 1.5A Ic rating and 45V Vceo limit. Use a flyback diode across inductive loads such as motors or relay coils.

Q: Does the BD226 need a heatsink?
A: For light switching duty a heatsink is usually unnecessary, but for sustained currents near 1.5A or continuous conduction, attaching a small heatsink to the TO-126 tab is recommended.

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: NPN
Transistor Case Style: TO-126

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