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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V SOT346
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR)
- 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)：47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：80 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 250µA, 5mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：250 MHz
- Power - Max：200 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-346
- Supplier Device Package：SOT-346
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Overview
The DTA123JKAT246 is a PNP digital transistor from the ROHM DTA123J series, featuring built-in bias resistors. It operates with a supply voltage of -50V and a maximum collector current of -100mA. The device incorporates an input resistance (R1) of 2.2kΩ and an emitter-base resistance (R2) of 47kΩ, yielding a typical resistance ratio of 21. Key electrical characteristics include a minimum DC current gain (hFE) of 80 at -10mA and -5V, a transition frequency of 250MHz, and a power dissipation rating of 200mW. It is housed in an SMT3 (SOT-346/SC-59) surface-mount package.
Feature Summary
- Built-in biasing resistors enable inverter circuit configuration without external input components.
- Simplified circuit design by requiring only on/off condition settings for operation.
- High-speed performance supported by a 250MHz transition frequency.
Applications
- Inverter circuits
- Interface logic
- Driver applications
Procurement Notes
Verify the specific ordering suffix against official ROHM documentation to confirm packaging details such as tape width and reel size. Confirm RoHS compliance status and ensure the component meets the required storage temperature range of -55°C to +150°C for the intended environment.
Selection Notes
Select this component for designs requiring a pre-biased PNP transistor with integrated resistors to reduce board space. Ensure the application voltage does not exceed the -50V limit and that the thermal management supports the 200mW power dissipation in the SMT3 package.
Part Context
This part belongs to the DTA123J series of digital transistors manufactured by ROHM Semiconductor. The series offers complementary NPN types within the DTC123J family. The DTA123JK variant specifically utilizes the SMT3 package, distinguishing it from other series members like the DTA123JM or DTA123JE which use different form factors.
Replacement Considerations
DTA123JKA
FAQ
What is the typical resistance ratio between R2 and R1?
The typical resistance ratio (R2/R1) is 21.
What is the maximum junction temperature?
The maximum junction temperature is 150°C.
Does this component require external input resistors?
No, the built-in bias resistors allow for inverter circuit configuration without connecting external input resistors.
