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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SSMINI3
- 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)：10 kOhms
- Resistor - Emitter Base (R2)：4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：20 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 300µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：150 MHz
- Power - Max：125 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-89, SOT-490
- Supplier Device Package：SSMini3-F1
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Overview
The UNR921KJ0L is a silicon NPN epitaxial planar transistor with built-in resistors, designed for digital circuits. It features an SS-Mini3-F1 package and supports automatic insertion via tape packing. Key electrical parameters include a collector-emitter voltage of 50 V, a collector current of 100 mA, and a total power dissipation of 125 mW. The device incorporates a base resistor (R1) of 10 kΩ and an emitter resistor (R2) of 4.7 kΩ, yielding a resistance ratio of approximately 2.13. Transition frequency is rated at 150 MHz.
Feature Summary
- Integrates biasing resistors to reduce component count and equipment size
- Utilizes SS-Mini3-F1 surface mount package for automated assembly
Applications
- Digital circuit switching applications
- General electronic equipment
- Household appliances
Procurement Notes
Verify the specific part number against official Panasonic datasheets to confirm the internal resistor configuration matches design requirements. Ensure compatibility with the SS-Mini3-F1 footprint during PCB layout. Confirm availability status as product lines may be subject to discontinuation or specification updates without notice.
Selection Notes
Select this component when a compact NPN solution with integrated biasing is required for digital logic interfaces. Verify that the 10 kΩ base and 4.7 kΩ emitter resistor values align with the target circuit's drive and pull-down needs. Consider the 150 MHz transition frequency for high-speed switching requirements within the specified voltage and current limits.
Part Context
This component belongs to the UNR921xJ series of transistors with built-in resistors manufactured by Panasonic Electronic Components. The series offers various resistor combinations tailored for different digital circuit applications, all sharing the same small outline package and fundamental electrical characteristics.
Replacement Considerations
Consult the official Panasonic UNR921xJ series documentation for confirmed substitute part numbers. Verify equivalent resistor ratios and electrical ratings before substitution.
