| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,550 pcs
|
1550 pcs | On Request | 1 | On Request | On Request | 17+ | On Request | On Request | |
|
408 pcs
|
408 pcs | On Request | 1 | On Request | On Request | 1041+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Halogen Free | |
| Mounting Type | |
| Operating Temperature | |
| Transistor Type |
The BD139 is an epitaxial planar NPN transistor manufactured by CJ, suitable for medium power linear and switching applications. It is designed for use in audio amplifier circuits and driver stages, often in complementary or quasi-complementary configurations, pairing with its PNP counterpart, the BD140.
Key electrical specifications include a Collector-Emitter Voltage (VCE) of 80V, a maximum power dissipation (Ptot) of 1.25W, and a transition frequency (fT) of 190MHz. The DC current gain (hFE) ranges from 40 to 250 at 0.5A.
This transistor features pre-selected DC current gain and is tested for high surge current capability, ensuring robust performance. It is suitable for high power dissipation with excellent thermal stability.
Applications for the BD139 include audio amplifier circuits, low to medium power switching devices, driver stages for relays and motors, voltage regulators, and general-purpose amplification in industrial and automotive equipment.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.77 | $0.77 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The Collector-Emitter Voltage (VCE) for the BD139 transistor is 80V.
The BD139 transistor has a total power dissipation of 1.25W.
The operating temperature range for the BD139 transistor is -55°C to 150°C.
The BD139 transistor is supplied in a TO-126 package.
The BD139 transistor is RoHS3 Compliant.
The Moisture Sensitivity Level (MSL) for the BD139 transistor is 1 Unlimited.