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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)：47 kOhms
- Resistor - Emitter Base (R2)：10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：33 @ 5mA, 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 DDTC144VCA-7-F is an NPN pre-biased small signal surface mount transistor from Diodes Incorporated, housed in a SOT23 package. It integrates built-in biasing resistors with nominal values of R1 = 47 kΩ and R2 = 10 kΩ. The device supports a maximum supply voltage (VCC) of 50 V and a continuous collector current (IC) of 100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 33 at IC = 5 mA, a transition frequency (fT) of 250 MHz, and a power dissipation rating of 200 mW. Operating temperature ranges from -55°C to +150°C.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated biasing resistors simplify circuit design
- Qualified to AEC-Q101 standards for high reliability
- Totally lead-free and fully RoHS compliant
Applications
- Switching applications requiring integrated base drive
- Driver circuits for logic interfaces
- Automotive electronics systems
Procurement Notes
Verify the component marking code 'N21' on the physical device to confirm it matches the DDTC144VCA-7-F designation. Ensure the supplier provides documentation confirming compliance with AEC-Q101 standards if automotive qualification is required. Check that the packaging corresponds to the specified reel size and tape width for automated assembly processes.
Selection Notes
Select this part when a single NPN transistor with specific 47k/10k resistor ratios is needed. Compare against other DDTC144 series variants like DDTC144WCA if different resistance values are required. Consider the SOT23 footprint constraints and thermal resistance of 625 °C/W during PCB layout planning.
Part Context
This component belongs to the DDTC (R1≠R2 Series) CA family of pre-biased transistors manufactured by Diodes Incorporated. The suffix '-7-F' indicates standard packaging with 3,000 units per reel and RoHS compliance. The 'CA' designation specifies the NPN configuration with unequal internal resistors.
Replacement Considerations
Direct substitutes within the same manufacturer family include DDTC144WCA-7-F, which features different resistor values (47k/22k). Other compatible options may include parts from the DDTA series for PNP requirements or equivalent digital transistors from other vendors with matching electrical parameters.
FAQ
What are the nominal values of the built-in resistors?
The nominal resistor values are R1 = 47 kΩ and R2 = 10 kΩ.
Is this component suitable for automotive applications?
Yes, the DDTC144VCA-7-F is qualified to AEC-Q101 standards for high reliability.
What is the maximum operating junction temperature?
The maximum operating junction temperature (TJ) is +150°C.
