UNR212200L

Overview

The Panasonic UNR212200L is a composite device featuring a Silicon PNP epitaxial planar transistor with built-in bias resistors. It operates within a Mini3-G1 (SC-59) package. The component has a collector-emitter voltage rating of -50 V and a maximum collector current of -500 mA. Internal resistance values are 4.7 kΩ for R1 and 4.7 kΩ for R2, yielding a nominal ratio of 1.0. The minimum forward current transfer ratio (hFE) is 50 at IC = -5 mA. Total power dissipation is rated at 200 mW, with a junction temperature limit of 150 °C.

Feature Summary

• Integrates a PNP transistor with two internal bias resistors to reduce component count and board space.
• Designed for digital circuits with a mini-type package suitable for automatic insertion via tape or magazine packing.

Applications

• Digital logic interface circuits
• General-purpose switching applications in electronic equipment
• Automated assembly environments requiring tape or magazine packaging

Procurement Notes

Verify the specific lifecycle status through official Panasonic channels before finalizing procurement plans. Confirm that the SC-59 package dimensions align with existing PCB footprints. Ensure design parameters remain within the absolute maximum ratings to prevent device failure during operation.

Selection Notes

Select this component when a PNP configuration with a 1:1 resistor ratio is required for digital switching. Verify that the 4.7 kΩ internal resistances meet the base drive requirements of the target circuit. Consider the Mini3-G1 package constraints for high-density layout designs.

Part Context

This part belongs to the UNR212x Series, which includes variants with different resistor ratios such as UNR2121 (2.2k/2.2k), UNR2123 (10k/10k), and UNR212X (0.27k/5k). All series members share the same physical package and core transistor characteristics but differ in internal resistance values to suit various biasing needs.

Replacement Considerations

Direct substitutes include other Panasonic UNR212x series parts with identical resistor values, such as UNR2122. Cross-manufacturer replacements must match the SC-59 package, PNP polarity, -50V rating, and 4.7kΩ/4.7kΩ resistor configuration.

FAQ

What are the specific values of the built-in resistors?

The UNR2122 features an input resistance (R1) of 4.7 kΩ and an output resistance (R2) of 4.7 kΩ.

Is this component suitable for high-power applications?

No, the total power dissipation is limited to 200 mW, making it suitable for low-power digital switching rather than high-power loads.

What is the maximum collector current rating?

The maximum collector current (IC) is rated at -500 mA under standard conditions.