The BD440 is silicon epitaxial-base PNP power transistors in Jedec SOT-32 plastic package, intended for use in power linear and switching applications.
Power Transistor?
Transistors are three-terminal semiconductor electronic devices that can be used as switches or amplifiers. They can be of NPN or PNP polarity, and many different types are available with different power and switching speed ratings. If a transistor designed to these concepts can handle more than 1 A of collector current, it is generally considered to be a power transistor. Such transistors must have low output resistance to deliver large load currents, and good junction insulation to resist high voltages. They must also dissipate heat very quickly to avoid overheating.
BD440 Pinout
BD440 Pin Configuration
| Pin No | Pin Name |
|---|---|
| 1 | Emitter |
| 2 | Collector |
| 3 | Base |
BD440 Key Features
- Collector-Emitter Sustaining Voltage –
- : VCEO(SUS)= -60V(Min)
- Minimum Lot-to-Lot variations for robust device performance and reliable operation
- Type Designator: BD440
- Material of Transistor: Si
- Polarity: PNP
- Maximum Emitter-Base Voltage |Veb|: 5 V
BD440 Specification
| Ic (mA) | Vce (max) | Vcb | hfe | @Ic | FT |
|---|---|---|---|---|---|
| 4 | 60 | 60 | 20-140 | 10 | 3 |
BD440 Equivalent/Alternate:
- BD410, BD414, BD433, BD434, BD439
Application
- Medium Power Linear And Switching
- General Purpose Amplifier
You can download this datasheet for BD440 PNP Power Transistor from the link given below:
