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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V 0.5A SMT3
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Resistors Included：R1 and R2
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：500 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：40 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：-
- Power - Max：250 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SMT3; MPAK
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Overview
The PDTD123EK,115 is an NPN resistor-equipped transistor (RET) from the PDTD123E series, manufactured by Nexperia. It features a built-in bias network with R1 = 2.2 kΩ and R2 = 2.2 kΩ, providing a typical resistor ratio of 1.0. The device supports a maximum collector-emitter voltage (VCEO) of 50 V and a DC output current (IO) of 500 mA. Packaged in the SOT346 (SC-59A/TO-236) surface-mount format, it offers a thermal resistance from junction to ambient of 500 K/W. The component is designed for digital applications in automotive and industrial segments.
Feature Summary
- Built-in bias resistors reduce component count and simplify circuit design.
- Provides a cost-saving alternative to discrete BC817 series transistors in digital applications.
- Suitable for controlling IC inputs and switching loads.
Applications
- Digital applications in automotive segments
- Digital applications in industrial segments
- Controlling IC inputs
- Switching loads
Procurement Notes
Verify the manufacturer designation as Nexperia, noting that the former NXP Standard Product business was rebranded. Confirm the specific ordering suffix '115' corresponds to the SOT346 tape and reel packing method. Ensure compatibility with the SC-59A package outline and check for any updates regarding the product status or revision history before finalizing procurement specifications.
Selection Notes
Select this component when a compact NPN solution with integrated base and pull-down resistors is required. The SOT346 package is appropriate for surface-mount assembly where space is limited. Consider the 500 mA current capability and 50 V voltage rating to ensure they meet the load requirements. Verify that the ±10% resistor ratio tolerance aligns with the circuit's biasing precision needs.
Part Context
This part belongs to the PDTD123E family of 500 mA NPN resistor-equipped transistors. The 'K' suffix specifically denotes the SOT346 (SC-59A) plastic surface-mounted package variant. It serves as a digital logic interface component, replacing multiple discrete resistors and transistors to streamline PCB layout and assembly processes in standard electronic designs.
Replacement Considerations
The PDTB123EK is the documented PNP complement within the same series. For direct substitution in existing designs, verify pinout compatibility and electrical parameters against the original schematic requirements.
