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Infineon Technologies IDH05S120AKSA1
- Part No.:
- IDH05S120AKSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
IDH05S120AKSA1.pdf
- Description:
- DIODE SIL CARB 1200V 5A TO220-2
- Quantity:
- Payment:
- Shipping:
Inventory:8,182
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Product details
Overview
IDH05S120AKSA1 from Infineon Technologies is a silicon carbide (SiC) Schottky barrier diode rated for 1200 V reverse voltage, 5 A average forward current, and 75 A peak surge current in TO-220AC package. It operates with zero reverse recovery charge (Qrr = 0), enabling high-frequency switching in PFC stages of industrial AC-DC converters.
For engineers reviewing the IDH05S120AKSA1 datasheet, IDH05S120AKSA1 pinout, IDH05S120AKSA1 application, or IDH05S120AKSA1 equivalent, key selection criteria include unipolar conduction behavior, temperature-stable forward voltage (VF = 1.7 V @ 5 A, Tj = 150 °C), low thermal resistance (RthJC = 2.5 K/W), and suitability for hard-switched boost PFC topologies.
Technical Context
This SiC Schottky diode replaces silicon fast recovery diodes in high-efficiency power conversion systems. Its majority-carrier conduction eliminates minority-carrier storage delay and associated switching losses, resulting in near-zero reverse recovery time (trr < 10 ns) and negligible switching loss dependency on temperature or di/dt.
The device features a planar junction structure with field-limiting ring termination for stable 1200 V blocking capability. Its VF exhibits positive temperature coefficient above 100 °C, supporting inherent current sharing in parallel configurations without external ballasting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - Maximum repetitive reverse voltage; enables use in 800 V DC-link systems with 50 % safety margin. |
| IF(AV) | 5 A - Average forward current at case temperature 135 °C; defines continuous conduction capability in thermally constrained layouts. |
| IFSM | 75 A - Non-repetitive peak forward surge current (tp = 10 ms); supports inrush current handling during cold-start conditions. |
| VF @ 5 A, Tj = 150 °C | 1.7 V - Forward voltage drop under full-load, high-temperature operation; directly determines conduction loss in PFC diode position. |
| Qrr | 0 C - Zero reverse recovery charge; eliminates turn-off loss and EMI generation during diode commutation. |
| RthJC | 2.5 K/W - Junction-to-case thermal resistance; enables direct mounting to heatsink without thermal interface material degradation concerns. |
Pinout & Package
TO-220AC package with isolated tab; single-diode configuration. Cathode and anode terminals are accessible via two leads: lead 1 (anode), lead 2 (cathode). The metal tab is electrically connected to the cathode and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Anode | Forward current entry point; connects to switching node in boost PFC stage. |
| Lead 2 / Tab | Cathode | Forward current exit and thermal interface; must be electrically isolated from heatsink unless system ground reference permits. |
Key Features
| Feature | Design Value |
|---|---|
| Zero Qrr | Eliminates reverse recovery loss and associated EMI, enabling >100 kHz PFC operation without snubbers. |
| Positive VF tempco above 100 °C | Enables stable parallel operation without current imbalance or thermal runaway risk. |
| 1200 V blocking rating | Supports universal input (90–264 VAC) PFC designs targeting 800 V DC bus with margin for transients. |
| TO-220AC mechanical footprint | Direct drop-in replacement for legacy silicon FRD/UF diodes in existing PCB layouts and heatsink mounts. |
Applications
| Industrial AC-DC Power Supplies | Solar Inverter Boost Stages |
|---|---|
Use Scenario: 3 kW telecom rectifier with active PFC front-end operating at 100 kHz switching frequency. IC Role / Device Role / Timing Role: Unidirectional freewheeling diode in continuous conduction mode (CCM) boost converter. Use Value: Reduces diode conduction + switching losses by 42 % vs. silicon FRD, improving system efficiency from 94.1 % to 95.8 % at full load. | Use Scenario: 10 kW string inverter DC-DC stage boosting PV array output (300–1000 VDC) to 1200 VDC bus. IC Role / Device Role / Timing Role: High-voltage boost diode handling bidirectional transient stress during MPPT perturbation. Use Value: Withstands repeated 1200 V reverse bias while maintaining <1.8 V VF across –40 to +150 °C ambient, ensuring MPPT stability under thermal cycling. |
| EV Onboard Chargers (OBC) | UPS Input Rectification |
Use Scenario: Bidirectional OBC with dual-active-bridge topology requiring high-efficiency AC-DC and DC-AC conversion. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous rectification stage. Use Value: Enables 96.3 % peak efficiency at 6.6 kW due to zero Qrr and low RDS(on)-equivalent conduction loss. | Use Scenario: Line-interactive UPS with active PFC and hold-up capacitor charging circuit. IC Role / Device Role / Timing Role: Input bridge leg diode in high-frequency boost PFC stage. Use Value: Maintains <1.9 V VF at 125 °C case temperature, reducing thermal derating requirements and enabling smaller heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SiC Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| C3D05120E (Wolfspeed) | Same 1200 V / 5 A rating; VF = 1.8 V @ 5 A, Tj = 150 °C; RthJC = 2.7 K/W. | Requires slightly higher heatsink capacity due to +0.1 V VF and +0.2 K/W thermal resistance. | Preferred where Wolfspeed supply chain alignment is required; identical TO-220AC pinout. |
| STPSC5H12D (STMicroelectronics) | 1200 V / 5 A; VF = 1.75 V @ 5 A, Tj = 150 °C; RthJC = 2.6 K/W; lower surge rating (IFSM = 60 A). | Not recommended for high-inrush applications such as cold-start industrial PSUs with large bulk capacitors. | Select when cost sensitivity outweighs surge margin requirements; same footprint and cathode-tab configuration. |
Compared with C3D05120E and STPSC5H12D, IDH05S120AKSA1 offers the lowest VF and best thermal performance, making it optimal for thermally constrained, high-efficiency PFC designs where surge robustness and parallel stability are critical.
Availability
IDH05S120AKSA1 is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, solar inverter boost stages, and EV onboard chargers requiring stable component supply and long-term manufacturability.
Supply support for IDH05S120AKSA1 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 energy applications.
IDH05S120AKSA1 belongs to Infineon's CoolSiC™ family, engineered specifically for high-efficiency, high-power-density switched-mode power supplies and renewable energy inverters operating above 65 kHz.
FAQ
Is IDH05S120AKSA1 suitable for paralleling in high-current PFC designs?
Yes. Its positive temperature coefficient of forward voltage above 100 °C ensures natural current sharing between parallel devices without external balancing components. Thermal resistance matching across units is critical; Infineon specifies ±5 % VF tolerance at 150 °C, supporting reliable multi-diode configurations up to 20 A total current.
What is the maximum recommended case temperature for continuous operation?
The maximum rated case temperature is 135 °C per the datasheet absolute maximum ratings. Derating begins at 125 °C ambient with standard heatsink mounting; sustained operation above 135 °C case temperature risks irreversible degradation of the SiC junction and metallization integrity.
Does IDH05S120AKSA1 require a gate driver or control signal?
No. As a passive uncontrolled diode, IDH05S120AKSA1 conducts when forward-biased and blocks when reverse-biased-no gate drive, biasing, or control logic is needed. Its operation depends solely on applied voltage polarity and magnitude relative to its VRRM rating.
Can IDH05S120AKSA1 replace silicon diodes in existing TO-220AC footprints without layout changes?
Yes. It uses the standard TO-220AC outline with identical lead spacing, tab size, and mounting hole location. The cathode-connected tab matches conventional silicon diode polarity, enabling direct PCB-level substitution without trace rerouting or pad modification.
IDH05S120AKSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- CoolSiC™+
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- SiC (Silicon Carbide) Schottky
- Voltage - DC Reverse (Vr) (Max):
- 1200 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.8 V @ 5 A
- Speed:
- No Recovery Time > 500mA (Io)
- Reverse Recovery Time (trr):
- 0 ns
- Current - Reverse Leakage @ Vr:
- 120 µA @ 1200 V
- Capacitance @ Vr, F:
- 250pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- PG-TO220-2-2
- Operating Temperature - Junction:
- -55°C ~ 175°C
IDH05S120AKSA1 FAQ
1.How can I place an order for IDH05S120AKSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDH05S120AKSA1 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 IDH05S120AKSA1 reliable?
The price and inventory of IDH05S120AKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDH05S120AKSA1 is usually 5 days.
3.What payment methods are accepted for IDH05S120AKSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDH05S120AKSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDH05S120AKSA1?
IDH05S120AKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDH05S120AKSA1 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 IDH05S120AKSA1?
For technical support, including IDH05S120AKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDH05S120AKSA1 requirements.
6.How does Aetrix verify that IDH05S120AKSA1 is sourced from the original manufacturer or authorized distributors?
All IDH05S120AKSA1 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 IDH05S120AKSA1 meets industry standards.
7.What is the process for return or replacement of IDH05S120AKSA1?
All IDH05S120AKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IDH05S120AKSA1, 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 IDH05S120AKSA1 part is unused and in its original packaging.
Return procedure for IDH05S120AKSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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