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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V 0.1A SMT3
- Series：-
- Mfr：Rohm Semiconductor
- 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)：2.2 kOhms
- Resistor - Emitter Base (R2)：2.2 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：20 @ 20mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
- 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 DTC123EKAT146 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-346-3 surface-mount package. It features built-in biasing resistors with typical values of 2.2 kΩ for both base and emitter connections. The device supports a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. Key electrical parameters include a minimum DC current gain (hFE) of 20 at 20 mA and 5 V, a transition frequency of 250 MHz, and a power dissipation rating of 200 mW. The component operates within a temperature range up to +150°C.
Feature Summary
- Integrates internal biasing resistors to simplify circuit design and reduce external component count.
- Provides high-speed switching capabilities suitable for applications requiring fast response times.
- Offers robust thermal performance with a maximum operating junction temperature of +150°C.
Applications
- Inverter circuits
- Interface drivers
- General-purpose switching applications
Procurement Notes
Verify the specific suffix AT146 to confirm the reel packaging format and tape width. Ensure compatibility with standard SMT assembly processes for the SOT-346 footprint. Cross-reference the manufacturer part number against official ROHM documentation to confirm active status and RoHS compliance before finalizing procurement plans.
Selection Notes
Select this component when a compact NPN digital transistor with 2.2 kΩ internal resistors is required. Compare the 200 mW power dissipation limit against the target application's thermal constraints. Verify that the 50 V collector-emitter voltage rating exceeds the maximum circuit voltage. Consider the SOT-346 package dimensions for PCB layout space availability.
Part Context
This part belongs to the DTC123 series of pre-biased transistors from ROHM. It shares functional similarities with other members like DTC123ECAT116 but differs in packaging and specific electrical tolerances. The series is designed to replace discrete resistor-transistor combinations in logic and driver circuits.
Replacement Considerations
DTC123ECAT116 is listed as a parameter equivalent. Verify pinout compatibility and exact resistance tolerances before substitution. Other SOT-346 NPN digital transistors may require schematic adjustments due to differing internal resistor ratios.
