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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 150MW SOT523
- Series：*
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：-
- Transistor Type：-
- Current - Collector (Ic) (Max)：-
- Voltage - Collector Emitter Breakdown (Max)：-
- Resistor - Base (R1)：-
- Resistor - Emitter Base (R2)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- Frequency - Transition：-
- Power - Max：-
- Grade：-
- Qualification：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
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Overview
The DDTC144WE-7-F is an NPN pre-biased small signal transistor in a SOT523 surface mount package. It features built-in biasing resistors with nominal values of R1=10kΩ and R2=47kΩ. The device supports a supply voltage (VCC) of 50V and a continuous collector current (IC) of 100mA. Electrical characteristics include a DC current gain (hFE) of 33 at IC=10mA, a transition frequency (fT) of 250MHz, and a power dissipation of 150mW. Operating temperature ranges from -55°C to +150°C.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated biasing resistors simplify circuit design by eliminating external components
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free "Green" device
Applications
- General purpose switching applications
- Driver circuits for logic interfaces
- Inverter circuits requiring compact footprint
Procurement Notes
Verify the complete part number includes the suffix '-7-F' for standard reel packaging containing 3,000 units per carrier. Confirm that the specific application environment does not require automotive qualification standards such as AEC-Q100 or IATF 16949 certification, as these are available through separate channels.
Selection Notes
Select this component when a compact NPN digital transistor with a 10kΩ base resistor and 47kΩ emitter resistor is required. Ensure the load current does not exceed 100mA and the supply voltage remains within 50V limits. Consider the complementary PNP type DDTA144WE-7-F if a positive logic inversion is needed.
Part Context
This component belongs to the DDTC (R1≠R2 Series) E family manufactured by Diodes Incorporated. It is designed for surface mount assembly in space-constrained environments. The series offers various resistor combinations to accommodate different logic levels and drive requirements without altering the physical package dimensions.
Replacement Considerations
Direct substitutes within the same manufacturer family include DDTA144WE-7-F for PNP applications. Cross-manufacturer equivalents should be verified against pinout configurations, specifically ensuring Pin 2 is Collector and Pin 3 is Emitter in the SOT523 package.
FAQ
What are the nominal resistance values for R1 and R2?
For the DDTC144WE-7-F, the nominal base resistor (R1) is 10kΩ and the nominal emitter resistor (R2) is 47kΩ.
Is this component suitable for high-frequency applications?
Yes, the device has a transition frequency (fT) of 250MHz, making it suitable for general high-speed switching tasks.
What is the maximum power dissipation?
The maximum power dissipation is 150mW when mounted on an FR-4 PCB with minimum recommended pad layout.
