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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 200MW SOT323
- 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 DDTC143EUA-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors with a nominal value of 4.7 kΩ for both R1 and R2. The device operates within a supply voltage range up to 50 V and supports a continuous collector current of 100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 20 at 10 mA, a typical transition frequency of 250 MHz, and a power dissipation rating of 200 mW. It is housed in a SOT-323 package and complies with AEC-Q101 standards.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated equal-value biasing resistors simplify circuit design
- Qualified to AEC-Q101 automotive reliability standards
- Lead-free and halogen-free green device compliant with RoHS directives
Applications
- Automotive electronic control units requiring high reliability
- General-purpose switching applications in consumer electronics
- Driver circuits for low-power loads in industrial systems
Procurement Notes
Verify the complete part number includes the -7-F suffix to confirm standard reel packaging and compliance markings. Confirm RoHS 3 and REACH status directly from the manufacturer's latest documentation before finalizing procurement specifications. Ensure the ordering quantity aligns with the standard 3,000 units per reel configuration specified in the datasheet.
Selection Notes
Select this component when a single NPN transistor with integrated base and emitter biasing resistors is required. The 4.7 kΩ resistor values are suitable for standard logic interface levels. Consider the complementary PNP type if inverted polarity is needed. Verify that the SOT-323 package dimensions fit the target PCB layout constraints.
Part Context
This component belongs to the DDTC (R1 = R2 Series) UA family from Diodes Incorporated. It shares the same electrical and thermal characteristics as other variants in the series, differing primarily in the nominal resistance values of the internal biasing network. The 'UA' designation indicates the specific SOT-323 surface-mount package form factor used across this product line.
Replacement Considerations
DDTC143EUAQ-7-F
FAQ
What is the nominal resistance value for R1 and R2?
The nominal resistance for both R1 and R2 is 4.7 kΩ.
Is this component qualified for automotive applications?
Yes, it is qualified to AEC-Q101 standards for high reliability.
What is the maximum power dissipation rating?
The maximum power dissipation is 200 mW.
