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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 DDTC142JU-7 is an obsolete NPN pre-biased surface mount transistor manufactured by Diodes Incorporated. It features epitaxial planar die construction and integrates a base resistor (R1) of 0.47 kΩ nominal value within the SOT-323 package. The device supports a maximum collector-emitter voltage (VCEO) of 40 V and a continuous collector current of 100 mA, with a power dissipation rating of 200 mW at 25°C ambient temperature. It operates across a junction and storage temperature range of -55°C to +150°C. The component is designed for low-voltage switching applications and includes built-in biasing resistors to simplify circuit design.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated base biasing resistor reduces external component count
- Totally lead-free and fully RoHS compliant manufacturing
- Halogen and antimony-free green device construction
Applications
- Low-voltage switching circuits
- Driver applications for small signal loads
- General purpose digital logic interfacing
Procurement Notes
This part number is officially marked as obsolete and discontinued by the manufacturer. Direct procurement from Diodes Incorporated is no longer available. Engineers must verify the availability of alternative sources or qualified replacement components before initiating any supply chain activities. Design changes should be considered to ensure long-term product viability.
Selection Notes
When selecting a replacement, verify that the substitute component matches the original electrical specifications, specifically the 40 V collector-emitter breakdown voltage and 100 mA continuous current rating. Ensure the new device utilizes the SOT-323 package to maintain mechanical compatibility. Confirm that the integrated base resistance value aligns with the existing circuit design requirements to prevent improper biasing conditions.
Part Context
The DDTC142JU-7 belongs to the DDTC series of NPN pre-biased transistors produced by Diodes Incorporated. This series is characterized by the integration of biasing resistors directly onto the silicon die, which simplifies board layout and improves switching consistency compared to discrete resistor configurations. The specific 'JU' suffix denotes the particular resistor ratio and configuration for this variant.
Replacement Considerations
Direct substitutes include the DDTC142JU-7-F, which shares identical electrical characteristics and packaging. Other compatible options within the same family may include variations with different resistor values if the circuit design permits modification of the biasing network.
