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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V NS-B1
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Cut Tape (CT),Tape & Box (TB)
- 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)：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：80 MHz
- Power - Max：300 mW
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：3-SIP
- Supplier Device Package：NS-B1
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Overview
The UNR411400A is a PNP silicon epitaxial planar transistor with built-in bias resistors, designed for digital circuits. It features an NS-B1 package with three through-hole pins. Key electrical ratings include a collector-emitter voltage of -50 V and a maximum collector current of -100 mA. The internal resistor configuration consists of R1 at 10 kΩ and R2 at 47 kΩ, yielding a resistance ratio of approximately 0.21. The device has a total power dissipation rating of 300 mW and a transition frequency of 80 MHz.
Feature Summary
- Integrates two bias resistors to reduce component count and board space in digital switching applications.
- Utilizes the NS-B1 radial taping package for automated assembly processes.
- Provides high forward current transfer ratio (hFE) for efficient signal amplification.
Applications
- Digital logic interface circuits
- Switching applications in general electronic equipment
- Signal amplification stages
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact resistor values and packaging type. Confirm availability status as lifecycle information may change. Ensure compliance with RoHS directives if required by your application standards.
Selection Notes
Select this component when a PNP transistor with integrated base and emitter resistors is needed for digital switching. Verify that the 10 kΩ base resistor and 47 kΩ emitter resistor match your circuit design requirements. Check that the -50 V voltage rating and -100 mA current capacity are sufficient for the load.
Part Context
This part belongs to the Panasonic UNR411x series of pre-biased transistors. The series offers various resistor combinations to suit different drive conditions. The UNR4114 variant specifically pairs a 10 kΩ base resistor with a 47 kΩ emitter resistor.
Replacement Considerations
Consult the manufacturer's official replacement list for verified substitutes. Generic equivalents may not replicate the precise internal resistor ratios or hFE characteristics defined in the datasheet.
FAQ
What are the specific values of the built-in resistors?
The UNR411400A includes a base resistor (R1) of 10 kΩ and an emitter resistor (R2) of 47 kΩ.
What is the maximum collector-emitter voltage?
The maximum collector-emitter voltage (VCEO) is -50 V.
What is the transition frequency of this transistor?
The transition frequency (fT) is specified as 80 MHz under standard test conditions.
