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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 15V 0.6A SMT3
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 Only
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：600 mA
- Voltage - Collector Emitter Breakdown (Max)：15 V
- Resistor - Base (R1)：10 kOhms
- Resistor - Emitter Base (R2)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic：80mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max)：500nA (ICBO)
- Frequency - Transition：200 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 DTC314TKT146 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SMT-3 (SOT-346) surface-mount package. It integrates a bias resistor network to simplify circuit design. Key electrical parameters include a maximum collector-emitter voltage of 50 V and a continuous collector current of 600 mA. The device features a minimum DC current gain (hFE) of 100 at 50 mA and 5 V. Power dissipation is rated at 200 mW, with a maximum operating temperature of +150°C. The typical input resistance is 10 kOhms, and the emitter-base voltage is 5 V.
Feature Summary
- Low saturation voltage typically 40mV at Ic/IB = 50mA/2.5mA, suitable for muting circuits
- Built-in bias resistors reduce external component count and board space
- High reliability surface-mount construction for automated assembly
Applications
- Muting circuits in audio equipment
- General-purpose switching applications
- Interface circuits between logic gates and loads
Procurement Notes
Verify the specific suffix T146 confirms the reel packaging format required for your assembly line. Confirm RoHS compliance status through official datasheets or manufacturer declarations prior to procurement. Ensure the ordering quantity aligns with standard tape-and-reel quantities to avoid cut-tape premiums or minimum order constraints.
Selection Notes
Select this component when a low-saturation NPN digital transistor is required for high-current switching up to 600 mA. The integrated 10 kOhm input resistor simplifies base drive calculations. Verify that the 50 V collector-emitter voltage rating exceeds the maximum circuit voltage. Consider the SMT-3 package dimensions for PCB layout compatibility.
Part Context
This part belongs to the DTC314 series of digital transistors from ROHM. The series is characterized by low saturation voltages and built-in bias resistors. The DTC314TK variant specifically denotes the SOT-346 package configuration. This family is designed to replace discrete resistor-transistor combinations in compact designs.
Replacement Considerations
Publicly confirmed substitutes include DTC314TU and DTC314TS. These variants share the same electrical characteristics but differ in packaging. Verify pinout compatibility and thermal performance before substitution.
