HTZ270H64K

Diode Arrays Overview

The HTZ270H64K is a high-voltage diode rectifier module from the IXYS HTZ270H series, rated for a repetitive peak reverse voltage of 64000 V and a minimum avalanche voltage of 68000 V. It features a center-tap circuit configuration with a mean forward current of 3.4 A under air-cooled conditions at 35°C ambient temperature. The device supports continuous direct forward currents up to 4.1 A in air or 4.0 A in oil at 60°C. It exhibits a maximum forward voltage of 46 V at 12 Amps peak and a peak reverse current of 0.5 mA at 150°C case temperature. The module weighs approximately 2.2 kg.

Diode Arrays Feature Summary

• Engineered for extreme high-voltage applications with a 64000 V rating
• Center-tap configuration designed for specific rectifier topologies
• Capable of handling significant surge currents up to 200 A

Diode Arrays Applications

• High voltage DC power transmission systems
• Industrial electrostatic precipitators
• Particle accelerator power supplies
• High voltage testing equipment

Diode Arrays Procurement Notes

Verify the exact part number suffix against official datasheets to confirm voltage ratings. Confirm thermal management requirements match the specified junction-to-ambient or junction-to-oil resistance values. Ensure mounting hardware compatibility with the three M5 tapped holes and clearance dimensions provided in the mechanical outline.

Diode Arrays Selection Notes

Select this component when system requirements demand voltages exceeding standard industrial limits. Evaluate cooling methods carefully, as current ratings differ significantly between air and oil cooling environments. Consider the physical weight and chassis mounting constraints due to the large module size and heavy construction required for such high voltage isolation.

Diode Arrays Part Context

This module belongs to the HTZ270H series, which includes variants with different voltage ratings such as 40kV, 48kV, and 56kV. All members share similar current capabilities and physical dimensions but are distinguished by their breakdown voltage specifications. The series is designed for robust performance in demanding high-power electronic environments.

Diode Arrays Replacement Considerations

Direct replacements must match the 64000 V rating and center-tap configuration. Verify that alternative modules support the same 3.4 A average current and fit the identical chassis mounting footprint with M5 threaded holes.

Diode Arrays FAQ

What is the difference between air-cooled and oil-cooled current ratings?

In air-cooled conditions at 35°C, the mean forward current is 3.4 A. In oil-cooled conditions at 60°C, the continuous direct forward current is 4.0 A.

How is the thermal resistance defined for this module?

The thermal resistance from junction to ambient is 0.95 °C/W for air cooling, and junction to oil is 0.77 °C/W for oil cooling.

What is the maximum surge current capability?

The module can withstand a non-repetitive surge forward current of 200 A at a virtual junction temperature of 150°C.