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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 DDTC142JE-7 is an obsolete NPN pre-biased transistor from Diodes Incorporated, packaged in a SOT523 case. It features built-in biasing resistors with nominal values of R1 = 0.47kΩ and R2 = 10kΩ. The device supports a maximum supply voltage (VCC) of 50V and a continuous collector current (IC) of 100mA. Power dissipation is rated at 150mW, with a thermal resistance (RθJA) of 625°C/W. Operating and storage temperatures range from -55°C to +150°C. The component is qualified to AEC-Q101 standards for high reliability.
Feature Summary
- Epitaxial planar die construction
- Built-in biasing resistors
- Qualified to AEC-Q101 standards
Applications
- High reliability electronic circuits requiring pre-biased transistors
Procurement Notes
This part number is officially marked as obsolete and discontinued by the manufacturer. Direct procurement is not possible through standard channels. Verification of availability should focus on identifying valid replacement components or alternative part numbers within the same product family that remain in active production.
Selection Notes
Designers must select a functional substitute because this specific model is no longer manufactured. When evaluating alternatives, verify that the replacement maintains the required SOT523 footprint, matches the 0.47kΩ/10kΩ resistor ratio, and meets the 50V VCC and 100mA IC specifications. Ensure the new component also satisfies AEC-Q101 requirements if applicable.
Part Context
The DDTC142JE belongs to the DDTC series of NPN pre-biased transistors produced by Diodes Incorporated. This series utilizes epitaxial planar construction and includes complementary PNP types (DDTA). The 'LO-R1' designation indicates the inclusion of internal biasing resistors, simplifying circuit design by reducing external component count.
Replacement Considerations
The datasheet explicitly states the part is obsolete. No specific replacement part numbers are provided in the documentation. Engineers must identify equivalent pre-biased NPN transistors with matching electrical characteristics and package dimensions.
