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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SMINI3
- 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)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：1 kOhms
- Resistor - Emitter Base (R2)：10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：30 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 300µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：150 MHz
- Power - Max：150 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-70, SOT-323
- Supplier Device Package：SMini3-G1
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Overview
The UNR521900L is a Silicon NPN epitaxial planar transistor with built-in bias resistors, designed for digital circuits. It features an S-Mini (SC-70) package with three terminals: Base, Emitter, and Collector. The device integrates two resistors, R1 and R2, with nominal values of 1 kΩ and 10 kΩ respectively. Absolute maximum ratings include a collector-emitter voltage of 50 V, a collector current of 100 mA, and a total power dissipation of 150 mW at 25°C ambient temperature. The junction temperature can reach up to 150°C.
Feature Summary
- Integrates dual bias resistors within a single compact component to reduce circuit board space and part count.
- Utilizes the S-Mini (SC-70) surface-mount package suitable for automated tape packing and magazine packing insertion.
Applications
- Digital logic interface circuits
- Switching applications in general electronic equipment
- Biasing networks for transistors or logic gates
Procurement Notes
Verify the specific suffix '00L' against the official Panasonic datasheet to confirm resistor tolerance and binning details. Check the manufacturer's lifecycle status page for maintenance or discontinuation notices before finalizing procurement plans.
Selection Notes
Select this component when a fixed resistor ratio is required for NPN switching. Ensure the 1 kΩ base resistor provides sufficient drive current for the intended load. Verify that the 10 kΩ collector or emitter resistor meets the voltage drop requirements of the target application.
Part Context
This part belongs to the UNR521x series, which encompasses various combinations of internal resistors. The UNR5219 designation specifically indicates the 1 kΩ and 10 kΩ configuration. The '00L' suffix likely denotes a specific manufacturing lot or packaging variant rather than a change in electrical function.
Replacement Considerations
Direct substitutes must match the SC-70 package and the 1k/10k resistor ratio. Verify pinout compatibility (Base-Emitter-Collector) to ensure correct orientation during replacement.
FAQ
What are the nominal resistance values for R1 and R2 in the UNR5219?
According to the datasheet, R1 is 1 kΩ and R2 is 10 kΩ.
What is the maximum collector-emitter voltage rating?
The absolute maximum rating for collector-emitter voltage (VCEO) is 50 V.
Is this component RoHS compliant?
Yes, the product complies with the RoHS Directive (EU 2002/95/EC).
