EMZ2T2R

Overview

The EMZ2T2R is a dual NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-563-6 surface-mount package. It integrates two NPN transistors with typical base resistors of 47 kΩ and emitter-base resistors of 47 kΩ. The device supports a supply voltage (VCC) of up to 50 V and provides a continuous collector current (IC) of 100 mA per channel. Power dissipation is rated at 150 mW, with a maximum operating temperature of +150°C. This component serves as a direct replacement for the EMH2 series.

Feature Summary

• Integrates dual NPN transistors with built-in biasing resistors within a compact SMD footprint.
• Designed for high-speed switching applications with a maximum operating frequency of 250 MHz.
• Supports low-voltage logic interfaces through integrated input resistance networks.

Applications

• Differential amplifier circuits
• High-frequency crystal oscillator drivers
• General-purpose signal switching

Procurement Notes

Verify the specific suffix 'T2R' against official datasheets to confirm reel packaging specifications. Ensure compatibility with standard SMT reflow profiles and check for RoHS compliance documentation prior to integration into production lines.

Selection Notes

Select this component when a dual NPN configuration with fixed 47 kΩ base resistance is required. Compare electrical characteristics such as hFE and saturation voltage against single-transistor alternatives to optimize board space and circuit complexity.

Part Context

This part belongs to the EMH2 family of complex digital transistors. It consolidates two discrete components into a single SOT-563 package, reducing assembly costs and PCB area while maintaining performance levels comparable to individual DTc144E devices.

Replacement Considerations

The EMZ2T2R is functionally equivalent to the EMH2T2R. Designers may substitute these parts directly if pinout and electrical parameters match the original design requirements.