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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 200MW SOT23-3
- Series：*
- Mfr：Diodes Incorporated
- Package：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 DDTC144ECA-7 is an NPN pre-biased small signal surface mount transistor from Diodes Incorporated, housed in a SOT23 package. It features built-in biasing resistors with nominal values of R1 = R2 = 47 kΩ. The device supports a maximum supply voltage (VCC) of 50 V and a continuous collector current (IC) of 100 mA. Power dissipation is rated at 200 mW, with an operating temperature range spanning -55°C to +150°C. Electrical characteristics include a DC current gain (hFE) minimum of 68 at 5 mA, a transition frequency (fT) of 250 MHz, and an output saturation voltage (VO(on)) of 0.1 V typ.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated equal-value biasing resistors simplify circuit design
- Qualified to AEC-Q101 standards for high reliability applications
- Fully RoHS compliant and halogen-free green device
Applications
- General-purpose switching circuits
- Driver applications for logic interfaces
- Automotive electronics requiring AEC-Q101 qualification
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm compliance status and packaging details. The standard reel size is 7 inches with a quantity of 3,000 units per reel. Confirm that the component meets all necessary environmental regulations such as RoHS 3 and REACH requirements before finalizing procurement plans.
Selection Notes
Select this component when a single NPN digital transistor with 47 kΩ base and emitter resistors is required. Ensure the application operates within the 50 V collector-emitter voltage limit and 100 mA current rating. Consider the SOT23 package dimensions and thermal resistance of 625 °C/W for heat dissipation planning in space-constrained designs.
Part Context
This part belongs to the DDTC (R1 = R2 Series) CA family of pre-biased transistors. Complementary PNP types are available in the DDTA series. The 'CA' designation indicates the specific resistor tolerance and electrical characteristics defined in the datasheet. Other variants in the series offer different resistor values ranging from 2.2 kΩ to 100 kΩ.
Replacement Considerations
Direct substitutes include other NPN pre-biased transistors with matching 47 kΩ internal resistors and similar SOT23 footprints. Verify pinout compatibility and ensure equivalent electrical ratings for VCEO, IC, and PD. Automotive applications may require parts specifically qualified to AEC-Q101 standards.
