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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SOT23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Resistors Included：R1 Only
- 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)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：120 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 250µA, 2.5mA
- Current - Collector Cutoff (Max)：500nA (ICBO)
- 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-23-3
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Overview
The DDTC143TCAQ-7-F is an NPN pre-biased transistor in a SOT23 package, manufactured by Diodes Incorporated. It features epitaxial planar die construction with a built-in single biasing resistor (R1) of 4.7 kΩ. The device is AEC-Q101 qualified and suitable for automotive applications requiring specific change control. Key electrical parameters include a collector-emitter voltage (VCEO) of 50 V, a continuous collector current (IC) of 100 mA, and a power dissipation (PD) of 200 mW at +25°C. The DC current transfer ratio (hFE) ranges from 100 to 600 at IC = 1mA, VCE = 5V. Operating temperature spans -55°C to +150°C.
Feature Summary
- Built-in biasing resistors (R1 only) simplify circuit design and reduce component count.
- Epitaxial planar die construction ensures robust performance and reliability.
- AEC-Q101 qualification and PPAP capability support use in automotive environments.
- Totally lead-free and fully RoHS compliant with halogen and antimony-free green packaging.
Applications
- Automotive switching circuits requiring AEC-Q101 compliance.
- General-purpose digital switching applications.
- Interface circuits between logic gates and loads.
Procurement Notes
Verify the part number suffix 'Q' indicates AEC-Q101 qualification and PPAP capability as specified in the datasheet. Confirm the R1 value is 4.7 kΩ for the DDTC143 variant. Ensure the ordering suffix '-7-F' corresponds to the 3,000-unit reel size in the SOT23 package. Check for any recent Product Change Notifications (PCN) that may affect manufacturing sites or materials.
Selection Notes
Select this component when an NPN pre-biased transistor with a 4.7 kΩ input resistor is required. The 50 V VCEO rating suits low-voltage switching tasks. The SOT23 package offers space efficiency. Consider the complementary PNP type (DDTA143TCAQ-7-F) if a PNP configuration is needed. Verify thermal management requirements against the 200 mW power dissipation limit.
Part Context
This part belongs to the DDTC (R1-ONLY SERIES) CA family from Diodes Incorporated. It is specifically designed as an NPN pre-biased transistor. The 'Q' suffix denotes automotive qualification. It is distinct from non-qualified variants like DDTC143TCA-7-F, which lack the AEC-Q101 certification. The series includes other resistor values such as 1kΩ, 2.2kΩ, 10kΩ, etc.
Replacement Considerations
Direct substitutes must match the NPN polarity, 4.7 kΩ R1 value, SOT23 package, and AEC-Q101 qualification. The DDTA143TCAQ-7-F is the complementary PNP type, not a direct replacement. Non-qualified versions like DDTC143TCA-7-F are electrically similar but lack automotive certification.
