ZX5T851ZTA

Single Bipolar Transistors Overview

The ZX5T851ZTA is a 60V NPN low saturation medium power transistor packaged in SOT-89. It features an extremely low equivalent on-resistance of 30mΩ at 6A and supports 5A continuous collector current with up to 20A peak pulse capability. The device offers very low saturation voltages, excellent hFE characteristics up to 10A, and operates within a junction temperature range of -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• Extremely low equivalent on-resistance for minimized on-state losses
• Very low saturation voltages across high current ranges
• Excellent static forward current transfer ratio (hFE) up to 10 amps

Single Bipolar Transistors Applications

• Emergency lighting circuits
• Motor driving including DC fans
• Solenoid, relay and actuator drivers
• DC-DC modules
• MOSFET gate drivers

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix ZTA corresponds to the 1000-unit reel quantity as documented in the official datasheet. Confirm that the component meets RoHS compliance requirements if applicable to your manufacturing standards. Ensure thermal management designs account for the specified junction-to-ambient resistance values under your specific PCB copper coverage conditions.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring high current handling capabilities combined with minimal voltage drop during conduction. The SOT-89 package provides a balance between power dissipation and board space efficiency. Consider the transition frequency and switching times if the application involves high-speed signal modulation or rapid switching transitions.

Single Bipolar Transistors Part Context

This part belongs to the fifth generation of low saturation transistors from Zetex Semiconductors, now part of Diodes Incorporated. It is designed specifically to replace older discrete solutions in power management applications where efficiency and heat reduction are critical performance factors.

Single Bipolar Transistors Replacement Considerations

Consult the manufacturer's cross-reference documentation for parametrically similar parts. Verify pinout compatibility and thermal resistance specifications before substituting with alternative manufacturers' components.

Single Bipolar Transistors FAQ

What is the maximum peak pulse current rating?

The device supports up to 20 amps of peak pulse current.

How does the packaging affect thermal performance?

Thermal resistance varies based on PCB copper coverage; it is 83°C/W on a small 25mm x 25mm FR4 board and improves to 60°C/W on a larger 50mm x 50mm board.