Infineon Technologies IDY10S120XKSA1

Overview

IDY10S120XKSA1 from Infineon is a 2nd Generation thinQ!™ silicon carbide (SiC) Schottky diode rated for 1200 V DC blocking voltage, 10 A continuous forward current at T_C < 150°C, and featuring zero reverse recovery charge (Q_C = 36 nC @ V_R = 400 V), enabling high-efficiency PFC stages in industrial SMPS. It uses the TO-247HC package with enhanced creepage for arcing mitigation in dusty environments.

For engineers reviewing the IDY10S120XKSA1 datasheet, IDY10S120XKSA1 pinout, IDY10S120XKSA1 application, or IDY10S120XKSA1 equivalent, key selection criteria include its temperature-independent switching, 1.65–2.55 V forward voltage range across 25–150°C, surge capability up to 250 A peak, and suitability for high-frequency, high-reliability power conversion where Si diodes exhibit excessive losses.

Technical Context

This SiC Schottky diode operates without minority carrier injection, eliminating reverse recovery time (t_rr) and associated switching losses. Its capacitive displacement current dominates turn-off behavior, with t_c < 10 ns and Q_C = 36 nC (per device) under 400 V reverse bias and 200 A/µs di/dt at 150°C junction temperature.

Thermal design is enabled by low R_thJC = 1 K/W (per device), supporting 150 W power dissipation at T_C = 25°C. The diode sustains 1200 V repetitive peak reverse voltage (V_RRM) with leakage current ≤240 µA at 1200 V and 25°C, rising to ≤1000 µA at 150°C - a predictable, non-thermal-runaway behavior distinct from Si PN diodes.

Key Specifications

Pinout & Package

Package: PG-TO247HC-3 - High-creepage variant of TO-247 with 4 mm minimum creepage distance between leads, compatible with standard TO-247 footprints and mounting hardware (M3 screws, 0.6 Ncm torque).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SiC Schottky diode applications.

Compared with C3D10065A and STPSC10H12D, IDY10S120XKSA1 uniquely combines 1200 V rating, 3-pin TO-247HC package for low-inductance/high-current routing, and 1 K/W R_thJC, making it optimal for high-density, high-reliability 800–1000 V industrial power stages where thermal and EMI constraints are stringent.

Availability

IDY10S120XKSA1 is available at Aetrix Electronics and suitable for solar inverters, industrial UPS systems, and motor drive PFC stages requiring stable component supply, long-term lifecycle support, and traceable sourcing for Class B and Class C industrial certifications.

Supply support for IDY10S120XKSA1 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 semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and renewable energy markets.

IDY10S120XKSA1 belongs to Infineon's 2nd Generation thinQ!™ SiC Schottky diode product line, engineered specifically for high-efficiency, high-reliability power conversion in 800–1000 V DC-link applications where thermal stability and EMI control are critical.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The IDY10S120XKSA1 supports continuous operation up to T_j = 175°C, as validated in thermal transient impedance testing and lifetime reliability qualification. Its rated I_F = 10 A assumes T_C < 150°C, but the die itself remains within safe operating area up to 175°C with appropriate thermal design and derating of surge current limits.

Does this diode require a gate resistor or external snubber network?

No - as a Schottky diode with no minority carriers, IDY10S120XKSA1 has no gate and requires no gate resistor. While its inherent dv/dt ruggedness (50 V/ns) reduces snubber necessity, a small RC snubber (e.g., 10 Ω + 100 pF) is recommended across anode-cathode in ultra-fast-switching IGBT bridges to suppress high-frequency ringing caused by stray inductance.

Can IDY10S120XKSA1 be paralleled with other SiC diodes for higher current handling?

Yes - the 3-pin TO-247HC package provides two anode terminals (Pins 1 and 3) to minimize current imbalance. When paralleling multiple IDY10S120XKSA1 units, ensure matched layout symmetry, identical heatsink contact pressure, and individual current-sense resistors for closed-loop balancing. Thermal coupling between devices must be minimized to avoid thermal runaway.

Is the TO-247HC package compatible with automated pick-and-place assembly?

Yes - the PG-TO247HC-3 package conforms to JEDEC MO-247 mechanical dimensions and tape-and-reel packaging standards (EIA-481). Its lead pitch (2.54 mm), coplanarity (<0.1 mm), and solderable plating (Pb-free matte tin) meet IPC-A-610 Class 3 requirements for automated SMT placement and wave soldering at 260°C for 10 seconds at 1.6 mm from case.