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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 200MW SOT323
- Series：*
- Mfr：Diodes Incorporated
- Package：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 DDTA142TU-7-F is a PNP pre-biased transistor manufactured by Diodes Incorporated, housed in an SOT-323 surface-mount package. It integrates a single internal biasing resistor (R1) with a nominal value of 0.47 kΩ. The device features a collector-emitter breakdown voltage (BVCEO) of -40 V and supports a continuous collector current of -100 mA. Maximum power dissipation is rated at 200 mW, with a thermal resistance from junction to ambient air of 625 °C/W. The component operates within a temperature range of -55°C to +150°C.
Feature Summary
- Integrates a built-in biasing resistor to simplify circuit design
- Utilizes epitaxial planar die construction for reliability
- Offers lead-free and RoHS compliant manufacturing
Applications
- General-purpose switching applications
- Driver circuits for low-power loads
- Logic level translation interfaces
Procurement Notes
This component is officially marked as obsolete and discontinued by the manufacturer. Verification of availability requires checking authorized distributors for remaining stock or surplus inventory. Engineering teams should initiate replacement qualification immediately due to the lack of future production support.
Selection Notes
Select this part only if legacy compatibility is required. For new designs, consider alternative PNP pre-biased transistors with similar electrical characteristics and available supply chains. Verify that the integrated 0.47 kΩ input resistance aligns with the specific drive requirements of the target application.
Part Context
The DDTA142TU-7-F belongs to the DDTA series of PNP pre-biased transistors from Diodes Incorporated. This series is designed to replace discrete resistor-transistor networks, reducing board space and assembly costs. The 'TU' suffix indicates the specific R1-only configuration within the SOT-323 package family.
Replacement Considerations
DDTA142JU-7-F
FAQ
What is the nominal value of the internal biasing resistor?
The internal biasing resistor (R1) has a nominal value of 0.47 kΩ.
Is there an internal resistor connected between the base and emitter?
No, the DDTA142TU variant includes only the base resistor (R1); the base-emitter resistor (R2) is open.
What is the maximum collector-emitter breakdown voltage?
The collector-emitter breakdown voltage (BVCEO) is -40 V.
