NTST30100CTH

Overview

The NTST30100CTH is a trench-based Schottky rectifier manufactured by onsemi, housed in a TO-220AB package. It features dual diodes with a peak repetitive reverse voltage of 100 V and an average rectified forward current of 30 A per device (15 A per diode). The component exhibits exceptionally low forward voltage, reaching 0.455 V at 5 A and 125°C junction temperature. Maximum thermal resistance from junction to case is 2.5 °C/W per diode, supporting high surge currents up to 160 A.

Feature Summary

• Fine lithography trench-based Schottky technology for very low forward voltage and low leakage
• Fast switching with exceptional temperature stability
• Low power loss and lower operating temperature
• High surge capability

Applications

• Switching power supplies including notebook/netbook adapters
• ATX and flat panel display power systems
• High frequency and DC-DC converters
• Freewheeling and OR-ing diodes
• Reverse battery protection

Procurement Notes

Verify the specific ordering suffix 'H' against official documentation to confirm halide-free status, as standard variants use 'G'. Ensure the package matches the required TO-220AB form factor. Confirm RoHS compliance requirements align with the manufacturer's lead-free designation. Validate that the thermal management design accommodates the specified junction-to-case thermal resistance values under maximum load conditions.

Selection Notes

Select this component for applications requiring high efficiency and low heat generation in power conversion circuits. The trench-based technology offers superior performance compared to planar Schottky rectifiers by reducing forward voltage drop without increasing reverse leakage. Consider the 100 V rating and 30 A capacity when designing for high-frequency switch-mode power supplies where regulatory compliance regarding efficiency is critical.

Part Context

This device belongs to the NTSx30100CT family of very low forward voltage trench-based Schottky rectifiers. It shares core electrical characteristics with variants such as NTSB30100CTT4G and NTSJ30100CTG, differing primarily in packaging style and shipping configuration. The TO-220AB package provides robust mechanical support and efficient heat dissipation capabilities suitable for through-hole mounting in industrial and consumer electronics.

Replacement Considerations

Direct substitutes include NTSB30100CT-1G (I2PAK), NTSJ30100CTG (TO-220FP), and NTSB30100CTG (D2PAK). Verify pin compatibility and thermal resistance differences when replacing with these variants. Ensure the replacement part meets the same 100 V and 30 A specifications.

FAQ

What is the typical forward voltage at 5 A and 125°C?

The typical instantaneous forward voltage is 0.455 V at an forward current of 5 A and a junction temperature of 125°C.

What is the maximum nonrepetitive peak surge current?

The maximum nonrepetitive peak surge current is 160 A, applied at rated load conditions with half-wave, single-phase, 60 Hz input.

How does the trench-based technology benefit this rectifier?

The fine lithography trench-based Schottky technology enables very low forward voltage and low leakage current, resulting in higher efficiency and lower operating temperatures.