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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SSSMINI3
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 and R2
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：80 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：10 kOhms
- Resistor - Emitter Base (R2)：47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：80 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 300µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：150 MHz
- Power - Max：100 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-723
- Supplier Device Package：SSSMini3-F1
Download product information
Overview
The UNR32A400L is a silicon NPN epitaxial planar transistor with built-in bias resistors, designed for digital circuits. It features an SSSMini3-F1 package suitable for high-density mounting. Key electrical parameters include a collector-emitter voltage of 50 V and a collector current of 80 mA. The device has a total power dissipation of 100 mW at 25°C and a transition frequency of 150 MHz. Internal resistors consist of R1 (10 kΩ) and R2 (47 kΩ), providing a resistance ratio of approximately 0.21.
Feature Summary
- Integrated bias resistors simplify circuit design by reducing component count.
- Compact SSSMini3-F1 package facilitates downsizing and high-density mounting.
- Designed specifically for use in digital logic applications.
Applications
- Digital logic circuits
- General electronic equipment
- Office equipment
Procurement Notes
Verify the specific lifecycle status of the UNR32A400L directly with Panasonic Industry, as documentation indicates potential maintenance or discontinuation phases. Confirm that the internal resistor values and package dimensions match the required design specifications before finalizing procurement decisions.
Selection Notes
Select this component when a compact NPN pre-biased transistor is required for digital switching applications. Ensure the 80 mA collector current and 100 mW power dissipation limits accommodate the target circuit load. Verify compatibility with the SSSMini3-F1 footprint during PCB layout planning.
Part Context
This part belongs to the UNR series of transistors with built-in resistors manufactured by Panasonic Industry. These components are engineered to replace discrete resistor-transistor networks, offering space savings and simplified assembly processes for standard consumer and industrial electronics.
Replacement Considerations
Publicly confirmed substitute part numbers for the UNR32A400L are not available in the provided source material. Consult official manufacturer databases for equivalent cross-references if this component is discontinued.
FAQ
What are the values of the built-in resistors?
The internal resistors are R1 = 10 kΩ and R2 = 47 kΩ.
What is the maximum collector current?
The maximum collector current (IC) is rated at 80 mA.
What is the transition frequency of the device?
The transition frequency (fT) is 150 MHz under specified test conditions.
