The BD681 is silicon epitaxial-base NPN power transistors in monolithic Darlington configuration mounted in Jedec SOT-32 plastic package. They are intended for use in medium 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.
BD681 Pinout
BD681 Pin Configuration
| Pin No | Pin Name |
|---|---|
| 1 | Emitter |
| 2 | Collector |
| 3 | Base |
BD681 Key Features
- Collector–Emitter Breakdown Voltage— : V(BR)CEO = 100V
- DC Current Gain— : hFE = 750(Min) @ IC= 1.5 A
- Minimum Lot-to-Lot variations for robust device performance and reliable operation
- Type Designator: BD681
- Material of Transistor: Si
- Polarity: NPN
- Maximum Emitter-Base Voltage |Veb|: 5 V
BD681 Specification
| Ic (mA) | Pd | Vce (max) | Vcb | hfe | @Ic |
|---|---|---|---|---|---|
| 4 | 40 | 100 | 100 | 750 | 1500 |
BD682 Equivalent/Alternate:
- BD605, BD610, BD633, BD634, BD635, BD636, BD637, BD638, BD682
Application
- General-Purpose Amplifier
- Medium Power Linear
- Switching Application
You can download this datasheet for BD681 NPN Power Transistor from the link given below:
