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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SOT523
- 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：150 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-523
- Supplier Device Package：SOT-523
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Overview
The DDTC143ZE-7-F is an NPN pre-biased transistor from Diodes Incorporated, housed in a SOT523 package. It features built-in biasing resistors with nominal values of R1 = 4.7 kΩ and R2 = 10 kΩ. The device supports a maximum supply voltage (VCC) of 50 V and a continuous collector current of 100 mA. Power dissipation is rated at 150 mW, with an operating temperature range spanning -55°C to +150°C. Electrical characteristics include a minimum DC current gain (hFE) of 80 and a transition frequency of 250 MHz.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated unequal biasing resistors (R1≠R2) simplify circuit design
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free "Green" device
Applications
- General-purpose switching applications
- Driver circuits for low-power loads
- Logic level translation interfaces
Procurement Notes
Verify the specific part number against official manufacturer documentation to ensure correct resistor ratios and polarity. Confirm that the SOT523 package dimensions align with the target PCB footprint. Check for compliance requirements such as RoHS or halogen-free status if mandated by the end-use industry standards.
Selection Notes
Select this component when an NPN configuration with specific 4.7kΩ input and 10kΩ output biasing is required. Ensure the application voltage does not exceed the 50V limit and current stays within the 100mA rating. Consider thermal resistance and power dissipation limits during high-duty cycle operations.
Part Context
This component belongs to the DDTC143ZE series of pre-biased transistors. It is part of a broader family offering various resistor combinations and complementary PNP types (DDTA). The suffix indicates standard reel packaging for surface-mount assembly.
Replacement Considerations
Direct substitutes include other NPN pre-biased transistors with identical 4.7kΩ/10kΩ resistor ratios and SOT523 packaging. Verify pinout compatibility and electrical ratings before substitution.
