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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 DDTC143FE-7-F is an NPN pre-biased transistor in a SOT523 package. It features built-in biasing resistors with R1 at 4.7 kΩ and R2 at 47 kΩ. The device supports a supply voltage of 50 V and a continuous collector current of 100 mA. Power dissipation is rated at 150 mW, with a thermal resistance of 833 °C/W. Operating temperature ranges from -55°C to +150°C. DC current gain (GI) is typically 68 at 5V output and 10mA load. Transition frequency reaches 250 MHz.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated unequal biasing resistors (R1≠R2) simplifying circuit design
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free "Green" device
Applications
- Interface circuits
- Driver applications
- General-purpose switching
Procurement Notes
Verify the complete part number includes the suffix '-7-F' for reel packaging. Confirm the specific resistor values match the design requirements, as the base model covers multiple configurations. Check for automotive qualification if AEC-Q101 compliance is required for the target application environment.
Selection Notes
Select this component when unequal input and feedback resistors are needed for specific biasing characteristics. Ensure the SOT523 package size fits the PCB layout constraints. Verify that the 100 mA output current and 50 V voltage ratings exceed the maximum expected operational loads.
Part Context
This part belongs to the DDTC (R1≠R2 Series) E family from Diodes Incorporated. It is complemented by PNP types in the DDTA series. The 'E' suffix denotes the SOT523 surface mount package. Other variants in this series differ primarily in resistor values and maximum output current ratings.
Replacement Considerations
Direct substitutes include other DDTC143FE-7-F parts from different manufacturers offering identical electrical specifications and SOT523 pinouts. Verify resistor tolerances and thermal resistance values match the original design parameters.
