UNR911NJ0L

Overview

The UNR911NJ0L is a PNP epitaxial planar transistor with built-in bias resistors, designed for digital circuits. It features an SS-Mini3-F1 package (SC-89). 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 4.7 kΩ and an emitter resistor (R2) of 47 kΩ, resulting in a resistance ratio of 0.1. It exhibits a forward current transfer ratio (hFE) ranging from 80 to 400 at IC = -5 mA and VCE = -10 V, with a transition frequency of 80 MHz.

Feature Summary

• Integrates two internal bias resistors to reduce component count and board space.
• Utilizes the compact SS-Mini3-F1 package suitable for automatic insertion.
• Designed specifically for use in digital logic circuits.

Applications

• Digital logic interface circuits
• Switching applications in consumer electronics
• Driver stages for low-power digital loads

Procurement Notes

Verify the specific suffix '0L' against the manufacturer's latest lifecycle status, as this series includes various maintenance and discontinued stages. Confirm RoHS compliance documentation matches the required environmental standards for your assembly process. Ensure the SS-Mini3-F1 footprint aligns with your PCB design guidelines before finalizing procurement orders.

Selection Notes

Select this component when a PNP switching transistor with fixed bias ratios is required. The 4.7 kΩ base and 47 kΩ emitter resistors provide a specific drive characteristic distinct from other variants in the UNR911xJ series. Verify that the 80 MHz transition frequency meets the speed requirements of the target digital application.

Part Context

This part belongs to the Panasonic UNR911xJ series of transistors with built-in resistors. The series offers multiple resistor combinations tailored for different digital circuit needs. The UNR911NJ0L specifically provides a 1:10 resistance ratio between the base and emitter terminals, distinguishing it from other members like the UNR911TJ or UNR911MJ which have different internal configurations.

Replacement Considerations

Direct substitutes within the same series require matching the internal resistor values. The UNR911NJ variant shares identical R1 and R2 values. Other parts in the UNR911xJ family may fit electrically but will alter circuit biasing due to different resistance ratios.