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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 200MW SOT323
- 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 DDTC144WUA-7-F is a single NPN pre-biased transistor from Diodes Incorporated, housed in an SOT323 package. It features built-in biasing resistors with nominal values of R1 = 47 kΩ and R2 = 22 kΩ. The device supports a supply voltage (VCC) of 50 V and a continuous collector current (IC) of 100 mA. Power dissipation is rated at 200 mW, with a thermal resistance (RθJA) of 625 °C/W. DC current gain (hFE) has a minimum value of 56 at VOUT = 5 V and IOUT = 5 mA. The transition frequency (fT) is typically 250 MHz. Operating and storage temperatures range from -55°C to +150°C.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated biasing resistors simplify circuit design
- Surface mount package optimized for automated assembly
Applications
- General-purpose switching applications
- Driver circuits for low-power loads
- Logic level translation interfaces
Procurement Notes
Verify the complete part number against official documentation, as suffixes like '-7-F' indicate specific packaging and compliance attributes. Confirm RoHS 3 and halogen-free status requirements match project specifications. Check manufacturing facility certifications if automotive or high-reliability standards apply. Validate lead finish and moisture sensitivity levels before procurement.
Selection Notes
Select this component when a compact NPN solution with fixed bias ratios is required. Ensure the 47k/22k resistor ratio aligns with input drive characteristics. Verify that the 100 mA output current meets load demands. Consider the SOT323 footprint constraints during PCB layout. Compare power dissipation limits against ambient operating conditions.
Part Context
This part belongs to the DDTC144 series of pre-biased transistors. It shares the SOT323 form factor with other variants in the UA family. Different suffixes denote distinct resistor combinations within the same electrical architecture. The series offers various R1/R2 ratios for diverse logic interface needs.
Replacement Considerations
Direct substitutes include other DDTC144 series parts with identical pinouts but different resistor values, such as DDTC144VUA-7-F. Cross-brand equivalents require verification of hFE, VCEO, and package dimensions. Ensure any replacement maintains the 50V rating and 100mA current capacity.
