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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SOT523
- Series：DDTC (R1 R2 SERIES) E
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),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)：22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：68 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
- 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 DDTC143FE-7-F is an NPN pre-biased transistor manufactured by 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 supply voltage (VCC) of 50 V and a continuous output current (IOUT) of 100 mA. Electrical characteristics include a minimum DC current gain (GI) of 68 at VO = 5V and IO = 10mA, and a transition frequency (fT) of 250 MHz. Power dissipation is rated at 150 mW, with an operating temperature range from -55°C to +150°C.
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 logic interfaces
- Automotive electronics requiring specific change control
Procurement Notes
Verify the component authenticity against the official datasheet DS30314 Rev.10. Confirm the marking code N10 on the SOT523 package matches the DDTC143FE-7-F designation. Ensure compliance with RoHS 3 and REACH regulations as specified by Diodes Incorporated. Check for AEC-Q100/101 qualification if automotive application is required.
Selection Notes
Select this part when an NPN pre-biased transistor with 4.7kΩ input resistor and 10kΩ base-emitter resistor is needed. The SOT523 package offers a compact footprint suitable for space-constrained designs. Consider the 100mA output current capability and 50V breakdown voltage for appropriate load driving requirements.
Part Context
This component belongs to the DDTC (R1≠R2 SERIES) E family from Diodes Incorporated. It is specifically designed as an NPN pre-biased transistor. The series includes various resistor combinations to suit different biasing needs. The DDTC143FE-7-F variant is distinguished by its specific 4.7kΩ/10kΩ resistor ratio.
Replacement Considerations
Complementary PNP types are available in the DDTA series. Other variants within the DDTC143XE-7-F or DDTC143ZE-7-F families may be considered if different resistor values are acceptable. Verify pinout compatibility and electrical parameters before substitution.
