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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)：47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：80 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 250µA, 5mA
- 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 DDTC143ZCA-7 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 = 47 kΩ. The device operates within a supply voltage range up to 50 V and supports a continuous collector current of 100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 80 at VO = 5V, IO = 10mA, and a typical transition frequency (fT) of 250 MHz. Thermal performance specifies a power dissipation of 200 mW and a junction-to-ambient thermal resistance of 625 °C/W. The component is housed in a SOT-23 package and complies with AEC-Q101 standards.
Feature Summary
- Epitaxial planar die construction for reliable operation
- Integrated biasing resistors simplify circuit design
- Qualified to AEC-Q101 automotive reliability standards
- Halogen and antimony-free green device compliant with RoHS directives
Applications
- Inverter circuits
- Interface drivers
- General-purpose switching applications
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm packaging details and compliance status. Standard products are electrically identical to automotive variants unless explicitly noted otherwise. Confirm that the requested part number matches the required marking code and reel size specifications provided in the manufacturer's ordering information table.
Selection Notes
Select this component when a single NPN digital transistor with unequal biasing resistors is required. The 4.7 kΩ input resistor and 47 kΩ emitter resistor configuration provides specific drive characteristics suitable for logic interface applications. Ensure the operating temperature range of -55°C to +150°C meets the environmental requirements of the target system.
Part Context
This component belongs to the DDTC (R1≠R2 Series) CA family from Diodes Incorporated. It serves as the NPN counterpart to the complementary PNP DDTA series. The 'CA' designation indicates the SOT-23 package type. Variants within this series differ primarily in their internal resistor ratios and maximum output currents.
Replacement Considerations
Direct electrical substitutes within the same series include DDTC143XCA-7-F (4.7k/10k) and DDTC143FCA-7-F (4.7k/22k). For automotive applications requiring PPAP capability, consider the DDTC143ZCAQ-7-F variant. Verify pinout compatibility and thermal resistance limits before substitution.
