UNR91A5G0L

Overview

The Panasonic UNR91A5G0L is a Silicon PNP epitaxial planar transistor with a built-in bias resistor, designed for digital circuits. It operates with a maximum collector-emitter voltage of -50 V and a collector current of -80 mA. The device features a minimum forward current transfer ratio (hFE) of 160 at -5 mA and -10 V, with a transition frequency of 80 MHz. Total power dissipation is rated at 125 mW. It utilizes the SSMini3-F3 surface-mount package, measuring 1.6 mm by 0.8 mm, and complies with RoHS directives.

Feature Summary

• Integrates a single bias resistor to reduce component count and simplify circuit design.
• Optimized for high-density mounting and equipment downsizing.
• Designed to contribute to low power consumption in digital applications.

Applications

• General-purpose digital switching circuits
• Office equipment logic interfaces
• Communications equipment signal processing

Procurement Notes

Verify the specific ordering suffix against official Panasonic documentation to confirm packaging type and compliance status. Confirm availability as the product lifecycle may include maintenance or discontinuation stages. Request the latest Product Standards directly from the manufacturer before final purchasing decisions to ensure specifications remain current.

Selection Notes

Select this component when a compact PNP transistor with integrated biasing is required for standard digital logic applications. Ensure the operating voltage does not exceed -50 V and the collector current remains within -80 mA limits. Verify that the SSMini3-F3 package dimensions fit the target PCB layout constraints.

Part Context

This component belongs to the Panasonic UNR91 series of transistors with built-in resistors. These devices are engineered specifically for digital circuits where space efficiency and simplified assembly are priorities. The series offers various configurations to support different logic levels and switching speeds while maintaining a small footprint.

Replacement Considerations

Consult official Panasonic cross-reference lists for verified substitutes. Generic equivalents may differ in internal resistor ratios or hFE characteristics. Do not assume pinout compatibility without verifying the specific package variant against the original datasheet.

FAQ

What is the internal connection configuration of the UNR91A5G?

The device features a single PNP transistor with a built-in bias resistor connected between the base and emitter terminals.

What is the guaranteed minimum DC current gain (hFE)?

The minimum forward current transfer ratio (hFE) is 160 when measured at a collector current of -5 mA and a collector-emitter voltage of -10 V.

What is the maximum total power dissipation?

The total power dissipation (PT) is rated at 125 mW at an ambient temperature of 25°C.