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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Infineon Technologies IDY15S120XKSA1

Name: IDY15S120XKSA1
Brand: Infineon Technologies
SKU: IDY15S120XKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IDY15S120XKSA1

Manufacturer:: Infineon Technologies

Category:: Single Diodes

Package:: TO-247-3 Variant

Datasheet:: IDY15S120XKSA1.pdf

Description:: DIODE SIC 1.2KV 7.5A TO247HC-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IDY15S120XKSA1 from Infineon Technologies is a 2nd Generation thinQ!™ silicon carbide (SiC) Schottky diode rated for 1200 V DC blocking voltage, 15 A continuous forward current at T_C < 150 °C, and 54 nC total capacitive charge at V_R = 400 V. It features zero reverse recovery, temperature-independent switching, and high surge capability (78 A non-repetitive peak at T_C = 25 °C), deployed in high-efficiency CCM PFC stages of industrial SMPS.

For engineers reviewing the IDY15S120XKSA1 datasheet, IDY15S120XKSA1 pinout, IDY15S120XKSA1 application, or IDY15S120XKSA1 equivalent, key selection criteria include its TO-247HC package with 1.5 K/W junction-to-case thermal resistance, 1.65–2.55 V forward voltage range across 25–150 °C, and absence of minority-carrier recovery-critical for EMI-sensitive, high-frequency (>100 kHz) power conversion designs.

Technical Context

This SiC Schottky diode replaces conventional silicon fast recovery diodes in hard-switched and resonant topologies by eliminating reverse recovery charge (Q_rr = 0) and associated switching losses. Its unipolar conduction mechanism ensures stable VF and IR over temperature, with no drift in trr or Qc under varying di/dt or load conditions.

The device operates up to 150 °C junction temperature and delivers 375–750 pF capacitance at 1 MHz depending on reverse bias (1–600 V), enabling predictable snubber design and reduced turn-off voltage overshoot in boost and LLC converters.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1200 V - Enables use in 800 V DC-link systems with 50% safety margin against transients.
I_F (cont.)	15 A @ T_C < 150 °C - Supports 1–2 kW CCM PFC stages without forced air cooling.
V_F	1.65 V @ 10 A, 25 °C; 2.55 V @ 10 A, 150 °C - Low conduction loss with minimal temperature coefficient.
Q_c	54 nC @ V_R = 400 V - Capacitive charge only; enables precise soft-switching timing control.
R_thJC	0.9 K/W (device) - Allows direct heatsink mounting with ≤90 °C case rise at full load.
I_F,SM	78 A @ 10 ms sine half-wave, T_C = 25 °C - Withstands inrush and overload without bond-wire fusing.
dv/dt ruggedness	50 V/ns @ V_R = 0–960 V - Immune to false turn-on in high-di/dt gate-drive environments.

Pinout & Package

Package: PG-TO247HC-3 (high creepage variant of TO-247), RoHS-compliant, Pb-free lead plating, qualified per JEDEC J-STD-20 and JESD22.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode	Main current entry point; electrically isolated metal tab for thermal path to heatsink.
Pin 2	Cathode	Main current exit; bonded directly to die cathode metallization; primary EMI return path.
Pin 3	Anode	Second anode terminal for parallel conduction path; reduces package inductance vs. single-pin layout.

Key Features

Feature	Design Value
No reverse recovery	Eliminates Q_rr-related switching loss and associated EMI spikes in hard-switched PFC.
Temperature-stable VF	VF increases only ~0.9 mV/°C from 25–150 °C-enables consistent conduction loss modeling across thermal range.
High dv/dt immunity	50 V/ns rating prevents spurious conduction during fast voltage transitions in high-side switch nodes.
TO-247HC package	Increased creepage distance reduces arcing risk in dusty industrial environments without conformal coating.
JEDEC-qualified reliability	Validated for automotive-grade thermal cycling and humidity exposure per JESD22-A101/A110.

Applications

Solar Inverter Boost Stage

Industrial UPS Rectifier

Use Scenario: High-voltage DC boost stage converting PV array output (600–1000 V) to 1200 V DC-link.

IC Role / Device Role / Timing Role: Unidirectional freewheeling diode in interleaved boost converter operating at 50–100 kHz.

Use Value: Zero Q_rr reduces switching loss by >40% vs. Si FRD, enabling 99.1% peak efficiency at 10 kW.

Use Scenario: Input rectification and hold-up capacitor charging in 3-phase online UPS with 800 V DC bus.

IC Role / Device Role / Timing Role: Output diode in active front-end (AFE) rectifier with bidirectional energy flow.

Use Value: Stable 1.65–2.55 V VF across -40–150 °C ensures predictable thermal derating and fanless operation.

Motor Drive Braking Circuit

CCM PFC in Server PSU

Use Scenario: Regenerative braking energy recapture in 400–690 V AC drives using IGBT-based inverters.

IC Role / Device Role / Timing Role: Freewheeling path for inductive motor current during IGBT commutation.

Use Value: 78 A surge rating handles 3× nominal current during emergency stop without degradation.

Use Scenario: Critical conduction mode (CCM) PFC stage in 3 kW server power supply with 230 V AC input.

IC Role / Device Role / Timing Role: Output diode in continuous-conduction boost converter switching at 65–130 kHz.

Use Value: 54 nC Q_c enables precise zero-current switching (ZCS) timing, reducing MOSFET turn-on loss by 22%.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
C3D15120H (Wolfspeed)	Same 1200 V/15 A rating; 1.75 V VF @ 10 A, 25 °C; 0.85 K/W R_thJC; TO-247-3L package (standard creepage).	Lacks high-creepage TO-247HC layout-requires conformal coating in dusty environments.	Select when thermal performance is prioritized over environmental robustness and board-level insulation clearance.
STPSC15H12D (STMicroelectronics)	1200 V/15 A; 1.8 V VF @ 10 A, 25 °C; 1.1 K/W R_thJC; TO-220AC package (lower power density, no isolated tab).	Not suitable for >1 kW designs due to higher thermal resistance and limited surge rating (60 A).	Choose only for cost-sensitive, lower-power (<800 W), space-constrained applications where heatsinking is simplified.

Compared with C3D15120H and STPSC15H12D, IDY15S120XKSA1 uniquely combines high-creepage packaging, 0.9 K/W thermal resistance, and 78 A surge capability-making it optimal for industrial 1–3 kW PFC and motor drive designs requiring long-term reliability in harsh ambient conditions.

Availability

IDY15S120XKSA1 is available at Aetrix Electronics and suitable for solar inverters, industrial UPS systems, and high-density server PSUs requiring stable component supply, long-lifecycle support, and JEDEC-qualified reliability.

Supply support for IDY15S120XKSA1 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, with leadership in SiC and GaN technologies since 2001.

IDY15S120XKSA1 belongs to Infineon's 2nd Generation thinQ!™ SiC Schottky diode product line, engineered specifically for high-efficiency, high-reliability industrial power conversion where zero reverse recovery and high-temperature operation are mandatory.

FAQ

Is IDY15S120XKSA1 compatible with standard TO-247 footprints?

Yes. The PG-TO247HC-3 package maintains identical mechanical dimensions and mounting hole positions as industry-standard TO-247, enabling drop-in replacement in existing PCB layouts without redesign. Only the creepage distance between leads is increased-no changes to pad geometry or screw placement are required.

What is the maximum recommended case temperature for continuous operation?

The datasheet specifies continuous forward current I_F = 15 A at case temperature T_C < 150 °C. Operation above this limit requires derating per Figure 7 in the datasheet; sustained T_C > 150 °C risks accelerated parameter drift and reduced lifetime, even if junction temperature remains within 150 °C.

Does IDY15S120XKSA1 require a gate resistor or snubber network?

No. As a Schottky diode with no minority carriers, it has no gate and exhibits purely capacitive turn-off behavior. A small RC snubber (e.g., 100 Ω + 100 pF) may be used to damp high-frequency ringing caused by stray inductance, but it is not required for safe operation or EMI compliance.

How does its reverse leakage compare to silicon diodes at 150 °C?

At V_R = 1200 V and T_j = 150 °C, IDY15S120XKSA1 exhibits 750–1500 µA reverse current-higher than Si diodes but fully specified and stable. This leakage is predictable and does not cause thermal runaway, unlike bipolar Si devices where leakage doubles every ~10 °C.

IDY15S120XKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolSiC™+

Package/Case:: TO-247-3 Variant

Packaging:: Tube

Product Status:: Obsolete

Technology:: SiC (Silicon Carbide) Schottky

Voltage - DC Reverse (Vr) (Max):: 1200 V

Current - Average Rectified (Io):: 7.5A

Voltage - Forward (Vf) (Max) @ If:: 1.8 V @ 10 A

Speed:: No Recovery Time > 500mA (Io)

Reverse Recovery Time (trr):: 0 ns

Current - Reverse Leakage @ Vr:: 180 µA @ 1200 V

Capacitance @ Vr, F:: 375pF @ 1V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO247HC-3

Operating Temperature - Junction:: -55°C ~ 150°C

IDY15S120XKSA1 FAQ

1.How can I place an order for IDY15S120XKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IDY15S120XKSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IDY15S120XKSA1 reliable?

The price and inventory of IDY15S120XKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDY15S120XKSA1 is usually 5 days.

3.What payment methods are accepted for IDY15S120XKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDY15S120XKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IDY15S120XKSA1?

IDY15S120XKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IDY15S120XKSA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IDY15S120XKSA1?

For technical support, including IDY15S120XKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDY15S120XKSA1 requirements.

6.How does Aetrix verify that IDY15S120XKSA1 is sourced from the original manufacturer or authorized distributors?

All IDY15S120XKSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IDY15S120XKSA1 meets industry standards.

7.What is the process for return or replacement of IDY15S120XKSA1?

All IDY15S120XKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IDY15S120XKSA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IDY15S120XKSA1 part is unused and in its original packaging.

Return procedure for IDY15S120XKSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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