BD439 NPN Transistor, 60V 4A, TO-126 Package for Power Switching & Amplification
Features:
- Voltage Rating: Maximum collector-emitter voltage of 60V, suitable for various power control applications.
- Current Handling: Capable of withstanding an average collector current of 4A, accommodating substantial load requirements.
- Transition Frequency: Transition frequency of 3MHz, enabling operation in high-speed switching applications.
- Package Type: Housed in a TO-126 package, allowing for through-hole mounting and effective heat dissipation.
Specifications:
| TYPE | DESCRIPTION |
| Package | Bulk |
| Product Status | Obsolete |
| Transistor Type | NPN |
| Current – Collector (Ic) (Max) | 4 A |
| Voltage – Collector Emitter Breakdown (Max) | 60 V |
| Vce Saturation (Max) @ Ib, Ic | 800mV @ 300mA, 3A |
| Current – Collector Cutoff (Max) | 100µA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 40 @ 500mA, 1V |
| Power – Max | 36 W |
| Frequency – Transition | 3MHz |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Through Hole |
| Package / Case | TO-126-3 |
| Supplier Device Package | TO-126 |
| Base Product Number | BD439 |
Applications:
- Amplifiers: Suitable for audio and RF amplifier circuits requiring medium power handling.
- Switching Circuits: Used in power switching applications, including motor control and power supplies.
- Signal Processing: Employed in signal processing circuits where medium power amplification is needed.
