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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SOT23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 and R2
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：4.7 kOhms
- Resistor - Emitter Base (R2)：4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：20 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：250 MHz
- Power - Max：200 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
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Overview
The DDTC143ECA-7 is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors where R1 equals R2, with a nominal resistance of 4.7 kΩ. The device operates within a supply voltage range up to 50 V and supports a continuous collector current of 100 mA. It utilizes SOT-23 packaging and is qualified to AEC-Q101 standards for high reliability. Electrical characteristics include a minimum DC current gain (hFE) of 20 at 10 mA output current and a power dissipation rating of 200 mW.
Feature Summary
- Integrated biasing resistors eliminate the need for external components in inverter circuits.
- Qualified to AEC-Q101 standards for automotive and high-reliability applications.
- Totally lead-free and fully RoHS compliant construction.
Applications
- Inverter circuits
- Driver circuits
- Interface circuits
Procurement Notes
Verify the specific ordering suffix against official documentation, as variations such as -7-F or -13-F indicate different reel sizes and quantities. Confirm that the component meets all necessary environmental compliance requirements for the intended deployment region before finalizing procurement decisions.
Selection Notes
Select this component when a compact NPN solution with integrated biasing is required for low-power switching applications. Ensure the design accommodates the 4.7 kΩ internal resistor values and verify that the 100 mA collector current limit aligns with the load requirements of the target circuit topology.
Part Context
This part belongs to the DDTC (R1 = R2 Series) CA family from Diodes Incorporated. It is specifically designed as a pre-biased small signal transistor offering a compact alternative to discrete resistor-transistor combinations. The series includes complementary PNP types and various resistance values to suit different drive requirements.
Replacement Considerations
Check for equivalent parts within the same manufacturer's portfolio that share identical electrical parameters and pin configurations. Verify compatibility regarding package dimensions and thermal characteristics if substituting with components from other manufacturers.
FAQ
What are the nominal values for the internal biasing resistors?
For the DDTC143ECA, both the base resistor (R1) and the emitter-base resistor (R2) have a nominal value of 4.7 kΩ.
Is this component suitable for automotive applications?
Yes, the DDTC143ECA is qualified to AEC-Q101 standards, making it suitable for high-reliability automotive applications.
What is the maximum power dissipation rating?
The maximum power dissipation (PD) is rated at 200 mW when mounted on an FR4 PC board with the minimum recommended pad layout.
