Infineon Technologies ND89N12KHPSA1

Overview

ND89N12KHPSA1 from Netz-Dioden-Modul is a press-pack dual-arm rectifier diode module rated for 1200 V repetitive peak reverse voltage, 89 A average on-state current per arm at TC = 100°C, and 140 A RMS on-state current. It features AlN internal insulation, Si-pellet with pressure contact, and is designed for industrial AC/DC conversion in high-power B2/B6 bridge configurations.

For engineers reviewing the ND89N12KHPSA1 datasheet, ND89N12KHPSA1 pinout, ND89N12KHPSA1 application, or ND89N12KHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.225 °C/W per module), surge current rating (2.8 kA @ 10 ms), threshold voltage (0.75 V), slope resistance (2.3 mΩ), and isolation test voltage (3.0 kV RMS).

Technical Context

This dual-arm rectifier module implements a bipolar silicon die structure with pressure-contact metallization and aluminum nitride (AlN) ceramic isolation. It supports both two-pulse (B2) and six-pulse (B6) bridge topologies, with thermal performance characterized by transient junction-to-case impedance Z_thJC modeled via seven R-τ network elements.

Rated for operation from –40°C to +150°C case temperature, it delivers 1.5 V maximum forward voltage at 300 A and 150°C junction temperature, with 20 mA maximum reverse leakage at V_RRM and T_{vj max}. Its 0.05 °C/W max case-to-heatsink thermal resistance enables high-density mounting on standard heatsinks like KM14.

Key Specifications

Pinout & Package

ND89N12KHPSA1 is housed in a press-pack module with two isolated arms (anode/cathode pairs), mounted via M1 mechanical screws (4 Nm torque) and M2 terminal screws (4 Nm torque). The package uses AlN ceramic isolation and Si-pellet pressure contact, with creepage distance of 15 mm and typical weight of 160 g.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-power rectifier module applications.

Compared with DD89N12KHPSA1, ND89N12KHPSA1 guarantees the A1 revision thermal specification and is traceable to K.Spec A10/91; versus ND89N14KHPSA1, it trades 200 V lower V_RRM for optimized cost and conduction loss in 690 VAC systems.

Availability

ND89N12KHPSA1 is available at Aetrix Electronics and suitable for industrial AC drive rectifiers, medium-voltage UPS input stages, DC power supplies for welding equipment, and traction converter auxiliary rectifiers requiring stable component supply across extended production lifecycles.

Supply support for ND89N12KHPSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Netz-Dioden-Modul is a German manufacturer specializing in high-power semiconductor modules for industrial energy conversion, with expertise in press-pack diode and thyristor design since the 1980s.

The ND89N series targets high-reliability rectification in demanding environments-designed for sustained operation at 150°C junction temperature, mechanical robustness under vibration, and compatibility with standard industrial heatsinks like KM14.

FAQ

What is the maximum allowable case temperature for continuous operation?

The ND89N12KHPSA1 has a specified operating case temperature range of –40°C to +150°C. For continuous 89 A average current per arm, the datasheet mandates TC ≤ 100°C. Exceeding 100°C reduces I_FAVM per derating curves on page 6, and junction temperature must remain ≤150°C under all conditions.

Does this module require thermal compound between case and heatsink?

No thermal compound is required or recommended. The module uses pressure-contact construction with flat, polished copper terminals designed for direct metal-to-metal contact. Mounting torque must be strictly controlled at 4 Nm ±15% for M1 screws to ensure uniform clamping force without damaging the AlN isolation layer.

Can ND89N12KHPSA1 be used in single-phase applications?

Yes-it supports B2 (two-pulse) single-phase bridge rectification. Page 7 shows ID vs. ambient temperature curves for B2 configuration. At 100°C case temperature, it delivers ~140 A average output current in single-phase full-wave mode with appropriate heatsinking and forced air cooling.

What is the creepage distance and why does it matter for this module?

The creepage distance is 15 mm, measured across the AlN ceramic surface between high-voltage terminals. This value satisfies IEC 61800-5-1 pollution degree 3 requirements for industrial environments with conductive dust or humidity, ensuring long-term insulation integrity without tracking or flashover at 1200 V blocking.