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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)：47 kOhms
- Resistor - Emitter Base (R2)：22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：60 @ 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 Panasonic UNR521E00L is a Silicon NPN epitaxial planar transistor with built-in bias resistors, designed for digital circuits. It features an S-Mini3-G1 package (SC-70) and operates at a maximum collector-emitter voltage of 50 V and a collector current of 100 mA. The device includes two integrated resistors: R1 is 47 kΩ and R2 is 22 kΩ, yielding a resistance ratio of approximately 2.14. Key electrical characteristics include a forward current transfer ratio (hFE) ranging from 60 to 200 at IC = 5 mA and VCE = 10 V, a transition frequency (fT) of 150 MHz, and a total power dissipation of 150 mW.
Feature Summary
- Integrates dual bias resistors to reduce component count and equipment size
- Utilizes compact S-Mini surface-mount packaging for automated insertion
- Designed specifically for high-speed digital circuit applications
Applications
- Digital logic interface circuits
- Switching applications in consumer electronics
- General-purpose signal processing stages
Procurement Notes
Verify the specific suffix '00L' against official Panasonic documentation to confirm exact marking symbols and tape/packing specifications. Confirm lifecycle status as maintenance or discontinued via the manufacturer's website before finalizing procurement plans.
Selection Notes
Select this component when a pre-biased NPN transistor with a 47k/22k resistor configuration is required. Ensure the SC-70 footprint matches the PCB layout. Verify that the 150mW power dissipation rating meets the thermal requirements of the target application environment.
Part Context
This part belongs to the UNR521x Series, which offers various combinations of internal bias resistors. The standard designation is UNR521E, with the '00L' suffix indicating specific manufacturing or packaging attributes defined by Panasonic Industry.
Replacement Considerations
Direct substitutes within the same series include UNR521D (47k/10k) or UNR521F (4.7k/10k). Cross-manufacturer replacements require verifying pinout compatibility and ensuring equivalent hFE and saturation voltage ratings.
