Infineon Technologies D2650N24TVFXPSA1

Overview

D2650N24TVFXPSA1 from Infineon Technologies is a high-power, press-pack silicon rectifier diode designed for industrial AC/DC conversion in medium-voltage drive systems and traction rectifiers. It delivers 2400 V repetitive peak reverse voltage (VRRM), 2650 A average on-state current at TC = 100 °C (IFAVM), and 41 kA surge current (IFSM) under 10 ms, enabling robust operation in 3-phase line-commutated converters for rail propulsion and HVDC valve stacks.

For engineers reviewing the D2650N24TVFXPSA1 datasheet, D2650N24TVFXPSA1 pinout, D2650N24TVFXPSA1 application, or D2650N24TVFXPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.0169 °C/W two-sided), forward voltage drop (2.25 V @ 9 kA), clamping force range (24–60 kN), and dual-sided cooling compatibility - all critical for thermal management in high-current, high-reliability power conversion.

Technical Context

This device operates as a unidirectional, non-controlled power semiconductor switch with zero gate control - conduction is determined solely by applied anode-cathode voltage polarity and magnitude. Its silicon pellet uses pressure-contact packaging to maintain low thermal resistance and high mechanical stability under cyclic thermal stress.

The diode exhibits a defined on-state characteristic modeled by vF = A + B·iF + C·ln(iF) + D·iF² (with coefficients provided), and its reverse recovery behavior is characterized by Qr = 100–100,000 µAs depending on di/dt (1–100 A/µs) and peak forward current (100–3200 A), making it suitable for line-frequency and forced-commutated applications where soft recovery is not required.

Key Specifications

Pinout & Package

Package: Press-pack, double-sided cooled, stud-mounted diode with isolated anode and cathode terminals. Requires external clamping assembly and thermal interface material on both sides. Weight: ~600 g. Creepage distance: 25 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DD900N24K and SKKH 2500/24, D2650N24TVFXPSA1 offers the highest IFAVM (2650 A) and lowest RthJC (0.0169 °C/W), making it optimal for thermally demanding, high-reliability traction and HVDC applications where derating headroom and junction temperature control are critical.

Availability

D2650N24TVFXPSA1 is available at Aetrix Electronics and suitable for rail traction rectifiers, industrial medium-voltage drives, HVDC converter valves, and grid-scale static VAR compensators requiring stable component supply across multi-year production cycles.

Supply support for D2650N24TVFXPSA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power electronics, automotive ICs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

This device belongs to Infineon's IFBIP high-power press-pack diode product line, engineered specifically for line-frequency, high-current rectification in railway, energy transmission, and heavy industrial systems where reliability under extreme thermal and mechanical stress is mandatory.

FAQ

What is the maximum allowable case temperature for D2650N24TVFXPSA1?

The maximum allowable case temperature (TC) is not independently specified; instead, the device is rated for operation up to Tvj max = 180 °C junction temperature. With two-sided cooling, TC is limited by thermal design - typical maximum TC is 125 °C at IFAVM = 2650 A, derived from RthJC = 0.0169 °C/W and calculated power loss. Exceeding this risks accelerated aging and parameter drift.

Does D2650N24TVFXPSA1 require a gate drive circuit?

No - D2650N24TVFXPSA1 is an uncontrolled rectifier diode with no gate terminal. It conducts automatically when forward-biased above threshold voltage (~0.82 V) and blocks when reverse-biased below VRRM. Gate drive circuits are unnecessary; only proper thermal management, clamping force, and snubbing (if used in inductive switching) are required.

Can D2650N24TVFXPSA1 be used in parallel configurations?

Yes, but only with strict matching and symmetrical layout: devices must be from the same production lot, mounted with identical clamping force and thermal interface, and connected via low-inductance, balanced busbars. Forward voltage matching (vF ≤ ±0.05 V at 5 kA) and transient thermal impedance alignment are mandatory to prevent current imbalance and thermal runaway.

What is the recommended heatsink interface material for D2650N24TVFXPSA1?

Infineon recommends thermally conductive, non-silicone-based grease (e.g., Dow Corning TC-5022 or equivalent) with thermal conductivity ≥6 W/m·K and dielectric strength >10 kV/mm. Interface thickness must be controlled to 30–50 µm; excessive thickness increases RthCH, while insufficient coverage causes dry spots and hotspots. No thermal pads are approved for this press-pack device.