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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V 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)：50 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：22 kOhms
- Resistor - Emitter Base (R2)：47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：68 @ 5mA, 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 DTC124XKAT146 is a pre-biased NPN digital transistor manufactured by ROHM Semiconductor. It integrates bias resistors to simplify circuit design, eliminating the need for external input components. The device features a collector-emitter voltage (Vceo) of 50 V and a continuous collector current (Ic) of 100 mA. Key electrical parameters include an input resistance (R1) of 22 kΩ and an emitter-base resistance (R2) of 47 kΩ. The unit operates with a power dissipation rating of 200 mW and utilizes an SMT3 surface-mount package.
Feature Summary
- Integrates built-in biasing resistors to enable inverter circuit configuration without external input resistors
- Simplifies circuit design by requiring only on/off condition settings for operation
- Provides high reliability suitable for automotive applications through AEC-Q101 qualification
Applications
- Inverter circuits
- Interface drivers
- Automotive electronic systems
Procurement Notes
Verify the specific suffix KAT146 against official ROHM documentation to confirm package type and tape/reel specifications. Ensure the component meets required automotive grade standards if used in vehicle electronics. Cross-reference the part number with authorized distributors to confirm availability and authenticity before procurement.
Selection Notes
Select this component when a compact NPN digital transistor with integrated biasing is required for space-constrained designs. The 22kΩ/47kΩ resistor ratio is suitable for standard logic interface applications. Consider the SMT3 package dimensions for PCB layout compatibility and verify thermal management requirements based on the 200mW power dissipation limit.
Part Context
This part belongs to the DTC124 series of digital transistors from ROHM Semiconductor. The series offers various packages and resistor combinations to suit different application needs. The DTC124XKAT146 specifically targets automotive and industrial markets requiring high reliability and simplified biasing solutions.
Replacement Considerations
Check for direct substitutes within the DTC124 family or equivalent parts from other manufacturers offering similar NPN configurations with 22kΩ/47kΩ internal resistors. Verify pinout compatibility and electrical parameter equivalence before substitution.
