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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V 0.1A SMT3
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR)
- 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：SMT3
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Overview
The DTC143ZKAT246 is an NPN digital transistor from the ROHM DTC143Z series, housed in a SOT-346 package. It integrates bias resistors with typical values of R1 = 4.7 kΩ and R2 = 47 kΩ. The device supports a supply voltage (VCC) of 50 V and a maximum collector current (IC) of 100 mA. Key electrical characteristics include a DC current gain (hFE) of at least 80 at 10 mA, a transition frequency (fT) of 250 MHz, and a power dissipation rating of 200 mW. The operating junction temperature range extends up to +150 °C.
Feature Summary
- Built-in bias resistors enable inverter circuit configuration without external input components.
- Simplifies circuit design by requiring only on/off condition settings for operation.
- Features thin-film resistors that eliminate parasitic effects and allow negative biasing.
Applications
- Inverter circuits
- Interface logic
- Driver applications
Procurement Notes
Verify the specific suffix T246 against official documentation to confirm packaging details such as reel size and tape width. Confirm RoHS compliance status and long-term availability plans directly with the manufacturer or authorized distributors before finalizing procurement decisions.
Selection Notes
Select this component when a compact NPN digital transistor with integrated biasing is required for space-constrained designs. Ensure the 50 V supply voltage and 100 mA current limits align with the target application requirements. Consider the SOT-346 package dimensions for PCB layout compatibility.
Part Context
This part belongs to the DTC143Z series of bias resistor built-in transistors. It serves as the NPN counterpart to the DTA143Z PNP series. The series offers various package options including SOT-723, SOT-416, and SOT-323, providing flexibility for different mounting and thermal requirements.
Replacement Considerations
Complementary PNP types are available within the DTA143Z series. Other packages in the same electrical family include DTC143ZE (SOT-416) and DTC143ZM (SOT-723). Verify pinout and thermal characteristics when substituting across different package codes.
FAQ
What are the typical values for the built-in bias resistors?
The typical input resistance (R1) is 4.7 kΩ and the emitter-base resistance (R2) is 47 kΩ.
What is the maximum power dissipation for the SOT-346 package?
The maximum power dissipation for the DTC143ZKA variant in the SOT-346 package is 200 mW.
Is this component suitable for automotive applications?
Standard DTC143Z series products are designed for ordinary electronic equipment. Automotive-grade variants typically carry specific suffixes like 'X' (e.g., DTC143XM) and comply with AEC-Q101 standards.
