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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V 100MA
- Series：*
- Mfr：onsemi
- Package：Bulk
- 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 onsemi DTA143T is a PNP silicon bias resistor transistor designed for digital switching applications. It integrates a single NPN or PNP transistor with built-in bias resistors to simplify circuit design by eliminating external input components. The device features a collector-emitter voltage (VCEO) of 50 V and a continuous collector current (IC) of 100 mA. Typical internal resistance values include R1 at 4.7 kOhms. Packaged in surface-mount formats such as SOT-23, it operates within a temperature range of -55°C to +150°C and offers a power dissipation rating of 260 mW.
Feature Summary
- Integrates bias resistors to enable inverter circuit configuration without external input resistors
- Utilizes thin-film resistors with complete isolation to minimize parasitic effects
- Simplifies design by requiring only on/off condition settings for operation
Applications
- Inverter circuits
- Interface logic
- Driver stages
Procurement Notes
Verify the specific manufacturer suffix when ordering, as the base part number DTA143T is used by multiple vendors including ROHM and onsemi. Confirm RoHS compliance status and packaging type (reel vs. cut tape) directly with the supplier. Ensure the sourcing channel provides official datasheets matching the exact suffix to guarantee electrical parameter consistency.
Selection Notes
Select this component for applications requiring compact PNP switching with integrated biasing. Verify that the 50 V collector-emitter voltage and 100 mA current ratings exceed the maximum load requirements. Check thermal management needs against the 260 mW power dissipation limit in the chosen package. Ensure compatibility with the target PCB footprint for SOT-23 or equivalent surface-mount packages.
Part Context
The DTA143T belongs to the broader family of digital transistors with built-in resistors. This series allows designers to replace discrete transistor-resistor networks with single SMD components. Variants exist across different manufacturers, often sharing similar electrical characteristics but differing in pinout definitions or package dimensions. Always consult the specific manufacturer's datasheet for precise mechanical and electrical details.
Replacement Considerations
Cross-reference with DTC143T for complementary NPN functionality. Other manufacturers offer equivalents like ROHM's DTA143TM or Unisonic Technologies' DTA143T. Verify pinout alignment and resistance tolerance before substitution.
