UNR211D00L

Overview

The Panasonic UNR211D00L is a Silicon PNP epitaxial planar transistor with built-in bias resistors, designed for digital circuits. It features an SC-59 (Mini3-G1) package with three pins. The device has a maximum collector-emitter voltage of -50 V and a maximum collector current of -100 mA. Internal resistors are configured as R1 = 47 kΩ and R2 = 10 kΩ, yielding a resistance ratio of approximately 4.7. The minimum forward current transfer ratio (hFE) is 30, with a typical transition frequency of 150 MHz.

Feature Summary

• Integrates two internal bias resistors to reduce component count and board space in digital switching applications.
• Utilizes a compact SC-59 surface-mount package suitable for automated tape and magazine packing processes.

Applications

• Digital logic interface circuits
• Switching applications requiring integrated base drive
• General-purpose electronic equipment

Procurement Notes

Verify the specific ordering suffix against official Panasonic documentation to confirm resistor values and hFE ranking. Confirm RoHS compliance status and lifecycle stage, as maintenance or discontinuation notices may apply to this series. Ensure the supplier provides valid traceability documents matching the manufacturer's specifications.

Selection Notes

Select this component when a PNP transistor with fixed bias ratios is required for digital switching. Verify that the internal resistor values (47k/10k) match the circuit design requirements. Check the hFE ranking and transition frequency specifications to ensure compatibility with the target signal speeds and gain requirements.

Part Context

This part belongs to the UNR211x Series, which includes various configurations of PNP transistors with different internal resistor combinations. The series is designed to replace discrete transistor-resistor networks, offering a standardized solution for common digital logic levels and switching tasks within Panasonic's semiconductor portfolio.

Replacement Considerations

Direct substitutes include other UNR211x variants with similar electrical characteristics but different resistor ratios, such as UNR211E or UNR211F. Cross-manufacturer replacements must match the SC-59 package, -50V rating, and PNP configuration while verifying equivalent hFE and saturation voltages.

FAQ

What are the specific values of the internal resistors in the UNR211D?

The UNR211D contains two internal resistors: R1 is 47 kΩ and R2 is 10 kΩ.

What is the maximum power dissipation for this device?

The total power dissipation (PT) is rated at 200 mW at an ambient temperature of 25°C.

Is the UNR211D compliant with RoHS directives?

Yes, the product complies with the RoHS Directive (EU 2002/95/EC).