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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V 0.1A SMT3
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 and R2
- Transistor Type：PNP - 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 (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 DTA123EKAT146 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-346 (SC-59) surface-mount package. It integrates a bias resistor network with a typical input resistance of 2.2 kOhms and a typical resistance ratio of 1. The device supports a collector continuous current of 500 mA and operates with a maximum operating frequency of 200 MHz. Key electrical ratings include a collector-emitter voltage of 50 V, an emitter-base voltage of 3 V, and a power dissipation capacity of 200 mW. It functions within a temperature range up to +150 C.
Feature Summary
- Integrates built-in bias resistors to simplify circuit design and reduce component count
- Provides high-speed switching capabilities suitable for digital signal applications
- Offers compact surface-mount packaging for dense PCB layouts
Applications
- Digital signal interface circuits
- Level shifting between logic families
- Microcontroller I/O port driving
- Low-power switching control
Procurement Notes
Verify the specific suffix 'T146' to confirm the tape-and-reel packaging format and quantity. Ensure compatibility with standard SMT assembly processes for the SOT-346 footprint. Cross-reference the manufacturer datasheet for precise soldering thermal profiles and handling precautions to maintain device integrity during production.
Selection Notes
Select this component when an NPN configuration with a 2.2 kOhm base resistor is required. Verify that the 500 mA collector current rating meets the load requirements. Confirm that the 200 MHz frequency response aligns with the application's switching speed needs. Compare against PNP alternatives if polarity requirements differ.
Part Context
This part belongs to the DTA123EK series of digital transistors from ROHM. These devices are designed to replace discrete transistor-resistor combinations, offering space savings and improved reliability. The SOT-346 package is a standard JEITA designation for this form factor, widely used in portable electronics and consumer appliances.
Replacement Considerations
Check for direct pin-compatible substitutes within the same ROHM family, such as variants with different resistor values. Verify equivalent specifications from other manufacturers like ON Semiconductor or Diodes Inc., ensuring matching voltage, current, and package dimensions.
