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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V 0.5A 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)：500 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：1 kOhms
- Resistor - Emitter Base (R2)：1 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：33 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max)：500nA
- 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 DTB113EKT146 is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors within an SMT3 (SOT-23) surface-mount package. It supports a collector current of 500 mA and a collector-emitter voltage of -50 V with a power dissipation rating of 200 mW. The device incorporates thin-film resistors for R1 and R2, both typically valued at 1 kΩ, providing a resistance ratio of 1. Key electrical parameters include a minimum DC current gain (hFE) of 56 at 50 mA and 5 V, a transition frequency of 200 MHz, and a maximum operating temperature of +150 °C.
Feature Summary
- Integrates thin-film bias resistors to simplify circuit design by eliminating external components.
- Provides complete isolation between the transistor and resistors, enabling negative input biasing.
- Minimizes parasitic effects due to the integrated resistor structure.
Applications
- Switching circuits
- Inverter circuits
- Interface circuits
- Driver circuits
Procurement Notes
Verify the specific suffix T146 to confirm the tape-and-reel packaging format containing 3000 units per reel. Ensure compatibility with standard SMT3 footprint dimensions during PCB layout. Confirm RoHS compliance status through official manufacturer documentation prior to final procurement decisions.
Selection Notes
Select this component for applications requiring a PNP digital switch with 500 mA load capacity. The 1 kΩ internal resistor configuration suits general-purpose logic interfacing. Consider the complementary NPN DTD113EK series if a matched pair is required for push-pull configurations.
Part Context
This part belongs to the DTB113EK family of pre-biased PNP transistors from ROHM. It serves as the PNP counterpart to the NPN DTD113EK series, offering symmetrical performance characteristics for complementary circuit designs. The SMT3 package allows for compact board space utilization in portable electronics.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Verify pinout compatibility and electrical ratings before considering any alternative components from other manufacturers.
FAQ
What is the typical value of the built-in bias resistors?
The typical values for both the base resistor (R1) and emitter-base resistor (R2) are 1 kΩ.
Can this device handle negative biasing?
Yes, the use of completely isolated thin-film resistors allows the input to be biased in the negative direction.
What is the maximum operating temperature?
The maximum operating temperature for the DTB113EKT146 is +150 °C.
