PEMD12,115

Overview

The PEMD12,115 is a dual pre-biased transistor array manufactured by Nexperia USA Inc., housed in an SOT-666 surface-mount package. It integrates one NPN and one PNP bipolar junction transistor (BJT) with built-in biasing resistors. The device supports a maximum collector-emitter voltage of 50V and a continuous collector current of 100mA. Each internal transistor includes a 47 kΩ base resistor (R1) and a 47 kΩ emitter resistor (R2). Key electrical characteristics include a DC current gain (hFE) of at least 80 at 5mA/5V for the NPN and 60 at 5mA/5V for the PNP, with a maximum saturation voltage of 150mV at low currents. The unit operates within a temperature range of -55°C to +150°C and has a maximum power dissipation of 300mW.

Feature Summary

• Integrates complementary NPN and PNP transistors with fixed 47kΩ biasing resistors to simplify circuit design.
• Provides high DC current gain with low saturation voltage for efficient switching applications.
• Utilizes compact SOT-666 packaging suitable for high-density surface-mount assembly.

Applications

• General-purpose switching circuits requiring complementary logic inversion.
• Driver stages for small-signal loads where space constraints limit discrete component usage.
• Digital interface buffering in consumer electronics and industrial control systems.

Procurement Notes

Verify the specific ordering suffix and manufacturing date code upon receipt to ensure compliance with project requirements. Confirm that the received components match the SOT-666 package dimensions and pinout configuration specified in the official datasheet. Check for physical integrity and absence of contamination before soldering.

Selection Notes

Select this component when a design requires both NPN and PNP switching functions in a minimal footprint. The integrated 47kΩ resistors reduce external component count compared to using discrete transistors. Ensure the required current gain and saturation voltage meet the load specifications, as these values are optimized for general-purpose digital switching rather than linear amplification.

Part Context

This part belongs to Nexperia's portfolio of pre-biased transistor arrays designed to replace multiple discrete components. The SOT-666 package allows for automated placement in dense PCB layouts. It serves as a direct replacement for similar dual BJT arrays from other manufacturers, offering standardized performance for common-mode noise immunity and signal inversion tasks.

Replacement Considerations

Check pin-to-pin compatibility with existing designs using alternative dual BJT arrays. Verify that substitute parts offer equivalent hFE and Vce(sat) specifications. Ensure the replacement package matches the SOT-666 footprint to avoid rework or redesign efforts.

FAQ

What is the function of the internal resistors in the PEMD12,115?

The device includes a 47kΩ base resistor (R1) and a 47kΩ emitter resistor (R2) for each transistor. These resistors provide biasing and improve switching stability, reducing the need for external components.

Can the PEMD12,115 be used for linear amplification?

No, it is designed primarily for digital switching applications. The specified parameters, such as saturation voltage and current gain, are optimized for on/off states rather than linear operation.

What is the maximum power dissipation for this component?

The maximum power dissipation is 300mW. This limit must not be exceeded under any operating conditions to prevent thermal damage to the device.