UNR311200L

Overview

The UNR311200L is a PNP pre-biased bipolar junction transistor (BJT) designed for digital circuits. It integrates bias resistors R1 and R2, each with a nominal value of 22 kΩ, into an SSSMini3-F1 surface-mount package. The device supports a collector-emitter voltage of -50 V and a maximum collector current of -100 mA. Key electrical characteristics include a DC current gain (hFE) of at least 60 at -5 mA, a transition frequency (fT) of 80 MHz, and a saturation voltage of 0.25 V max at -10 mA. Total power dissipation is rated at 100 mW.

Feature Summary

• Integrates dual bias resistors to reduce component count and simplify circuit layout.
• Optimized for high-density mounting and downsizing in electronic equipment.
• Designed to contribute to low power consumption in digital applications.

Applications

• Digital logic circuits
• General-purpose switching applications
• Office equipment
• Communications equipment

Procurement Notes

Verify the specific lifecycle status before procurement, as this component may be classified under maintenance or discontinued categories. Confirm that the RoHS compliance aligns with current regulatory requirements for your region. Ensure the SSSMini3-F1 package dimensions match your PCB footprint constraints. Request the latest datasheet revision directly from Panasonic Industry to confirm any updates to absolute maximum ratings or electrical characteristics prior to final design approval.

Selection Notes

Select this component when a compact PNP solution with integrated biasing is required for standard digital loads. Verify that the 22 kΩ resistor ratio meets the specific drive requirements of the connected circuit. Ensure the operating environment remains within the specified temperature range of -55°C to +125°C. Consider the 100 mW power dissipation limit when designing thermal management strategies for high-density assemblies.

Part Context

This part belongs to the UNR311 series of transistors with built-in resistors manufactured by Panasonic Electronic Components. The series offers various configurations of NPN and PNP types with different resistance values and packages. The UNR3112 specifically denotes the PNP variant with 22 kΩ resistors in the SSSMini3-F1 package, targeting space-constrained digital designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Panasonic Industry sales staff for alternative components if this part is discontinued or unavailable. Do not assume cross-compatibility with other pre-biased transistor families without verifying pinout and electrical specifications.

FAQ

What is the internal connection configuration of the bias resistors?

The internal connection consists of two resistors, R1 and R2, both nominally valued at 22 kΩ, connected to the base terminal.

What is the marking symbol on the device?

The marking symbol printed on the UNR3112 component is '6B'.

What are the absolute maximum ratings for storage temperature?

The storage temperature range is specified as -55°C to +125°C.