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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)：10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：30 @ 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 DDTC143XCA-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors with nominal values of R1 = 4.7 kΩ and R2 = 10 kΩ. The device operates within a supply voltage range up to 50 V and supports a continuous collector current of 100 mA. Power dissipation is rated at 200 mW, with a thermal resistance (junction to ambient) of 625 °C/W. The gain-bandwidth product is typically 250 MHz. It is housed in an SOT-23 package and complies with AEC-Q101 standards for high reliability.
Feature Summary
- Epitaxial planar die construction
- Built-in biasing resistors with unequal values
- Qualified to AEC-Q101 automotive standards
- Lead-free and fully RoHS compliant
Applications
- Automotive electronics requiring high reliability
- General-purpose switching applications
- Driver circuits for low-power loads
Procurement Notes
Verify the component marking code 'N09' on the physical device to confirm it matches the DDTC143XCA-7-F designation. Ensure the packaging corresponds to a 3,000-unit reel size as specified in the ordering information. Confirm that the supplier provides traceability documentation required for AEC-Q101 qualified parts.
Selection Notes
Select this part when an NPN configuration with specific 4.7 kΩ base and 10 kΩ emitter resistors is required. Compare against other variants in the DDTC series if different resistor ratios or PNP polarity are needed. Verify that the 100 mA output current and 50 V supply voltage ratings meet the circuit requirements.
Part Context
This component belongs to the DDTC (R1≠R2 Series) CA family from Diodes Incorporated. It is designed as a surface-mount replacement for discrete resistor-transistor networks, reducing board space and assembly steps. The 'CA' suffix indicates the specific pinout and electrical characteristics defined in datasheet DS30330.
Replacement Considerations
Direct substitutes include other DDTC143XCA-7-F units from authorized distributors. For different resistor values within the same package, consider DDTC143FCA-7-F or DDTC143ZCA-7-F. Complementary PNP types like DDTA143XCA-7-F are available if opposite polarity is required.
