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Product Detailed Parameters
- Description：BIPOLAR TRANSISTORS
- Series：-
- Mfr：MCC (Micro Commercial Components)
- Package：Tape & Reel (TR)
- 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)：47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：68 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max)：100nA
- Frequency - Transition：250 MHz
- Power - Max：200 mW
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23
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Overview
The DTC144ECAHE3-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single NPN bipolar junction transistor with pre-biased resistors in a compact SOT-23 package. The device features a collector-emitter breakdown voltage of 50V and a maximum continuous collector current of 100mA. Internal resistor values are specified as R1 = 47kΩ and R2 = 47kΩ. Key electrical parameters include a DC current gain (hFE) minimum of 68 at 5mA/5V, a saturation voltage of 300mV at 500µA base current and 10mA collector current, and a transition frequency of 250MHz. The component is AEC-Q101 qualified for automotive applications.
Feature Summary
- Integrated NPN transistor with dual pre-biased resistors for simplified circuit design
- Automotive-grade reliability through AEC-Q101 qualification
- Compact surface-mount SOT-23 packaging for space-constrained applications
Applications
- Automotive electronic control units requiring robust switching components
- General-purpose digital switching circuits in consumer electronics
- Interface driving applications in industrial control systems
Procurement Notes
Verify the specific suffix HE3 against official MCC documentation to confirm AEC-Q101 automotive qualification status, as standard variants may lack this certification. Ensure compatibility with RoHS3 regulations if required by your manufacturing standards. Cross-reference datasheet revision dates to confirm pinout consistency with existing designs.
Selection Notes
Select this component when a low-voltage NPN switch with integrated biasing is needed for automotive or high-reliability environments. The 50V rating suits low-side switching applications. Verify that the 47kΩ internal resistance matches the drive requirements of the controlling logic level. Consider thermal dissipation limits within the SOT-23 package for high-frequency operation.
Part Context
This part belongs to the DTC144 series of pre-biased transistors from Micro Commercial Components. The HE3 suffix typically denotes halogen-free and lead-free construction with specific automotive qualification. It serves as a discrete solution replacing multiple external components, reducing board space and assembly complexity compared to discrete BJT and resistor combinations.
Replacement Considerations
Direct substitutes include other AEC-Q101 qualified NPN digital transistors with identical 47kΩ/47kΩ resistor ratios and SOT-23 packaging. Verify equivalent hFE and Vce(sat) specifications before substitution. Non-automotive equivalents like the standard DTC144ECA-TP may require validation for environmental compliance.
