EMD3-TPQ2

Overview

The EMD3-TPQ2 is a complex transistor component manufactured by Micro Commercial Components, featuring an integrated NPN and PNP transistor pair within a compact surface-mount package. This dual-transistor configuration allows for efficient circuit design in space-constrained applications. The device operates with a supply voltage of 1V and supports collector currents up to 0.1A for the NPN section and -0.1A for the PNP section. It includes built-in input resistances ranging from 1kΩ to 10kΩ and emitter-base resistances within the same range. The component is RoHS compliant and housed in an EMT6 (SOT-563/SC-107C) package measuring 1.6x1.6mm with a thickness of 0.55mm, suitable for automated taping processes.

Feature Summary

• Integrates two transistors (NPN and PNP) into a single ultra-small package for space-saving designs
• Includes internal biasing resistors to simplify circuit implementation
• Designed for low-voltage operation suitable for portable electronics

Applications

• Differential amplifier circuits
• High-frequency crystal oscillators
• Starters and driver circuits

Procurement Notes

Verify the manufacturer designation as Micro Commercial Components against official datasheets, as some sources may list related manufacturers like ROHM for similar part numbers. Confirm the specific suffix TPQ2 corresponds to the intended resistance values and packaging format. Ensure compliance with RoHS standards and check for any automotive qualification requirements if used in vehicle-related systems, as standard versions may not be recommended for such environments.

Selection Notes

Select this component when a compact solution for complementary transistor pairs is required. Consider the available input resistance options (1kΩ to 10kΩ) to match base drive requirements. Verify that the 1V supply voltage aligns with the system's power budget. Ensure the SOT-563 package footprint fits the PCB layout constraints. Check thermal dissipation limits if operating near maximum current ratings.

Part Context

The EMD3 series represents a family of complex transistors designed to replace multiple discrete components. These devices are commonly used in consumer electronics where board space is limited. The specific model EMD3-TPQ2 falls under this category, offering a pre-biased transistor pair. Similar parts in the industry often carry different prefixes but share functional similarities, making cross-referencing essential during the design phase.

Replacement Considerations

Equivalent single-part alternatives include DTA114E or DTC114E for individual transistor needs, though these do not offer the dual NPN/PNP integration. When substituting, verify pin compatibility and electrical characteristics such as VCEO and IC ratings. Ensure the replacement package matches the existing footprint to avoid PCB redesign.