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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)：22 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：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 UNR521T00L 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 has a maximum collector-emitter voltage of 50 V and a continuous collector current rating of 100 mA. Total power dissipation is limited to 150 mW at 25°C ambient temperature. The internal resistor configuration includes R1 at 22 kΩ and R2 at 47 kΩ, providing a resistance ratio of 0.47. The forward current transfer ratio ranges from 80 to 400 under standard test conditions.
Feature Summary
- Integrates two bias resistors within the transistor package to reduce component count and board space.
- Utilizes an S-Mini surface-mount package suitable for automated tape and magazine packing processes.
Applications
- Digital logic interface circuits
- Switching applications in consumer electronics
- General-purpose signal processing
Procurement Notes
Verify the specific suffix '00L' against Panasonic's official documentation to confirm it denotes a valid ordering variant or packaging specification. Confirm RoHS compliance status and lifecycle stage directly with the manufacturer before procurement.
Selection Notes
Select this component when a compact NPN switching solution with integrated base and pull-down/pull-up resistors is required. Ensure the 22 kΩ and 47 kΩ internal resistance values align with the target circuit's drive requirements and voltage levels.
Part Context
This part belongs to the UNR521x series, which encompasses various combinations of NPN transistors paired with different resistor ratios. The series is engineered to simplify digital circuit designs by replacing discrete transistor-resistor networks with single packaged components.
Replacement Considerations
Consult the official datasheet for equivalent part numbers within the UNR521x family that match the required resistance values and hFE rankings. Verify pinout compatibility and thermal characteristics before substituting.
