Infineon Technologies ND260N14KHPSA1

Overview

ND260N14KHPSA1 from Netz-Dioden-Modul is a press-pack, dual-arm rectifier diode module rated for 260 A average on-state current (IFAVM) at TC = 100°C, 1400 V repetitive peak reverse voltage (VRRM), and 9.5 kA non-repetitive surge current (IFSM) at Tvj = 25°C. It features AlN ceramic internal insulation, Si-pellet with pressure contact, and is designed for high-power industrial AC/DC conversion in six-pulse bridge (B6) configurations.

For engineers reviewing the ND260N14KHPSA1 datasheet, ND260N14KHPSA1 pinout, ND260N14KHPSA1 application, or ND260N14KHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.164 °C/W max), on-state voltage (1.32 V max at 800 A, Tvj max), threshold voltage (0.7 V), slope resistance (0.68 mΩ), and isolation test voltage (3.6 kV RMS, 1 sec).

Technical Context

This dual-arm press-pack diode module implements a bipolar silicon rectifier structure with symmetrical anode-cathode arms housed in a single metal-ceramic package. Each arm supports independent conduction in B2 (two-pulse) or B6 (six-pulse) bridge topologies, with thermal performance defined by transient junction-to-case impedance ZthJC and case-to-heatsink resistance RthCH ≤ 0.04 °C/W.

It operates across -40°C to +150°C case temperature range and requires controlled mounting torque (M1: 5 Nm ±15%, M2: 12 Nm ±10%) to maintain mechanical integrity and thermal interface performance. The module's 24 mm creepage distance and 3.6 kV isolation rating support use in medium-voltage industrial drives and traction converters.

Key Specifications

Pinout & Package

ND260N14KHPSA1 is a dual-arm press-pack rectifier module with two isolated semiconductor arms housed in a single copper baseplate package with AlN ceramic insulation. Mechanical terminals are designated as Anode 1 / Cathode 1 (Arm 1) and Anode 2 / Cathode 2 (Arm 2), mounted via M1 (mechanical) and M2 (electrical) threaded studs. No plastic encapsulation; direct heatsink mounting required.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MDD260-14N1 and CM200DY-14A, ND260N14KHPSA1 delivers higher surge robustness, lower thermal resistance, and field-serviceable pressure-contact construction-making it optimal for mission-critical industrial rectification where maintenance access and fault tolerance are prioritized.

Availability

ND260N14KHPSA1 is available at Aetrix Electronics and suitable for industrial AC drives, medium-voltage UPS systems, rail traction converters, and renewable energy grid interfaces requiring stable component supply and long-lifecycle support.

Supply support for ND260N14KHPSA1 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 specialist manufacturer of high-power semiconductor modules, focused on press-pack and high-current rectifier solutions for industrial and traction applications.

The ND260N series targets high-reliability, high-current AC/DC conversion in demanding environments-designed specifically for B2/B6 bridge rectifiers in drives, UPS, and energy infrastructure where thermal stability and surge resilience are critical.

FAQ

What is the recommended heatsink mounting procedure for ND260N14KHPSA1?

Mount using M1 mechanical studs at 5 Nm ±15% torque and M2 electrical terminals at 12 Nm ±10%. Apply uniform pressure across the copper baseplate with thermal interface material meeting ≥8 W/m·K conductivity. Surface flatness must be ≤5 µm to ensure RthCH ≤ 0.04 °C/W. Avoid over-torqueing, which risks ceramic fracture or contact degradation.

Does ND260N14KHPSA1 support reverse conduction or freewheeling operation?

No. ND260N14KHPSA1 is a unidirectional rectifier module with no reverse conduction capability. It conducts only from anode to cathode per arm. Freewheeling or bidirectional operation requires external anti-parallel thyristor or IGBT pairing, as the device lacks gate control or reverse-blocking MOSFET functionality.

Can ND260N14KHPSA1 be used in parallel configurations?

Yes-parallel operation is supported via matched dynamic characteristics and external current-sharing inductors. The module's low slope resistance (0.68 mΩ) and tight V_F tolerance (1.32 V max) minimize static current imbalance. Dynamic balancing requires identical layout, gate drive timing (for companion thyristors), and thermal coupling to avoid thermal runaway.

What is the maximum allowable case temperature during overload conditions?

The absolute maximum case temperature remains 150°C, even during short-duration overload. At t = 1 s and Tvj = 150°C, the maximum permissible I_F(OV)M is ~3,200 A (per arm). Sustained operation above 100°C case temperature requires forced-air cooling (e.g., Papst 4650 on KM17) and strict adherence to transient thermal impedance Z_thJC curves per datasheet page 4.