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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：R2 Only
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：-
- Resistor - Emitter Base (R2)：22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：56 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max)：500nA (ICBO)
- 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 DTC124GKAT146 is a single NPN pre-biased digital transistor manufactured by ROHM Semiconductor. It integrates bias resistors within an SMT3 (SOT-346) surface-mount package to simplify circuit design. The device supports a collector-emitter voltage of 50 V and a continuous collector current of 100 mA. Key electrical specifications include a maximum operating frequency of 250 MHz, a power dissipation rating of 200 mW, and a minimum DC current gain (hFE) of 80 at -10 mA and -5 V. The typical input resistance is 2.2 kOhms with a resistor ratio of 21. It operates up to a maximum temperature of +150°C.
Feature Summary
- Integrates built-in bias resistors to reduce component count and board space
- Provides high-speed switching capability suitable for digital interface applications
- Features robust thermal performance with a maximum junction temperature of +150°C
Applications
- Digital logic level shifting circuits
- Interface driver stages in consumer electronics
- Switching applications in portable devices
Procurement Notes
Verify the specific suffix 'KAT146' against the official ROHM datasheet to confirm the exact pinout and internal resistor configuration, as variations exist within the DTC124 series. Ensure the ordering part number matches the required tape-and-reel packaging format specified in the manufacturer's documentation. Cross-reference the AEC-Q101 qualification status if automotive reliability is required, noting that standard commercial grades may differ from qualified automotive variants.
Selection Notes
Select this component when a compact NPN solution with integrated biasing is needed for high-frequency digital switching. The 2.2 kOhm input resistance offers a balance between drive current requirements and noise immunity. Consider the 200 mW power dissipation limit for thermal management in dense PCB layouts. Compare against similar SOT-346 devices if alternative resistor ratios or higher current ratings are necessary for the specific application load.
Part Context
This part belongs to the DTC124 series of pre-biased transistors, which combine a bipolar junction transistor with internal resistors. The SMT3 package provides a small footprint ideal for space-constrained designs. The series is designed to replace discrete resistor-transistor networks, simplifying assembly and improving consistency in digital switching applications across various electronic systems.
Replacement Considerations
DTC124EKAT146: Similar NPN pre-biased transistor in SOT-346 package; verify resistor ratio differences.
FAQ
What is the typical input resistance value?
The typical input resistance is 2.2 kOhms.
Does this device support automotive grade qualification?
Standard DTC124GKAT146 listings do not explicitly state AEC-Q101 qualification; check specific automotive variants like DTC124XEFRATL for qualified options.
