The BD911 is silicon Epitaxial-Base NPN power transistors mounted in Jedec TO-220 plastic package. They are intended for use in power linear and switching applications. The complementary PNP types are BD910 and BD912 respectively.
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.
BD911 Pinout
BD911 Pin Configuration
| Pin No | Pin Name |
|---|---|
| 1 | Base |
| 2 | Collector |
| 3 | Emitter |
BD911 Key Features
- DC Current Gain – : hFE = 40@ IC= 0.5A
- Collector-Emitter Sustaining Voltage- : VCEO(SUS)= 100V(Min)
- Minimum Lot-to-Lot variations for robust device performance and reliable operation
- Type Designator: BD911
- Material of Transistor: Si
- Polarity: NPN
- Maximum Emitter-Base Voltage |Veb|: 5 V
BD911 Specification
| Ic (mA) | Pd | Vce (max) | Vcb | hfe | @Ic | Ft |
|---|---|---|---|---|---|---|
| 15 | 90 | 100 | 100 | 40-250 | 500 | 3 |
- BD912
BD911 Equivalent/Alternate:
- BD901, BD902, BD905, BD906, BD907, BD908, BD909
Application
- General Purpose Power Amplifier
- Switching Application
You can download this datasheet for BD911 NPN Power Transistor from the link given below:
