MMBTA55-7

Single Bipolar Transistors Overview

The MMBTA55-7-F is a PNP medium power transistor manufactured by Diodes Incorporated, housed in an SOT-23 package. It features an epitaxial planar die construction and operates with a collector-emitter voltage of -60V and continuous collector current of -500mA. The device dissipates up to 310mW at +25°C ambient temperature, with a junction-to-ambient thermal resistance of 403°C/W. It supports an operating temperature range from -55°C to +150°C and offers a gain-bandwidth product of 50MHz.

Single Bipolar Transistors Feature Summary

• Epitaxial planar die construction for reliable performance
• Designed specifically for low power amplification and switching applications
• Complementary NPN type available as MMBTA05 / MMBTA06
• Totally lead-free and fully RoHS compliant

Single Bipolar Transistors Applications

• Low power amplification circuits
• General purpose switching applications
• Electronic circuit design requiring PNP transistors

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix '-7-F' to confirm the reel size of 3000 units and tape width of 8mm. Ensure the component meets the required environmental standards, including being halogen and antimony free. Confirm that the application environment stays within the specified thermal limits to maintain the rated power dissipation.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with a -60V collector-emitter voltage rating is required. Consider the SOT-23 package dimensions for PCB layout constraints. Evaluate the thermal resistance characteristics against the expected power dissipation in the target application to ensure safe operating temperatures are maintained.

Single Bipolar Transistors Part Context

This part belongs to the MMBTA55 series of medium power transistors produced by Diodes Incorporated. It is designed to work alongside its complementary NPN counterpart, the MMBTA05. The series utilizes standard surface mount technology suitable for automated assembly processes in consumer and industrial electronics manufacturing.

Single Bipolar Transistors Replacement Considerations

The MMBTA56-7-F serves as a higher voltage variant within the same series. For complementary NPN requirements, the MMBTA05-7-F or MMBTA06-7-F are appropriate substitutes. Automotive-grade alternatives are available under separate datasheets such as the MMBTA55Q.