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Infineon Technologies IDH08S120AKSA1
- Part No.:
- IDH08S120AKSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
IDH08S120AKSA1.pdf
- Description:
- DIODE SIC 1.2KV 7.5A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:8,325
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Product details
Overview
IDH08S120AKSA1 from Infineon Technologies is a silicon carbide (SiC) Schottky diode rated for 1200 V blocking voltage and 7.5 A average forward current in a TO-220AC package, featuring zero reverse recovery charge (Qrr = 0), low forward voltage drop (VF = 1.5 V @ 8 A), and operation up to 175 °C junction temperature. It serves as a high-efficiency freewheeling or boost diode in industrial PFC stages and solar inverters.
For engineers reviewing the IDH08S120AKSA1 datasheet, IDH08S120AKSA1 pinout, IDH08S120AKSA1 application, or IDH08S120AKSA1 equivalent, key selection criteria include its SiC-based zero-Qrr behavior, thermal robustness at 175 °C, VF vs. temperature stability, and TO-220AC mounting compatibility with legacy heat sinks.
Technical Context
This SiC Schottky diode replaces silicon fast recovery diodes in high-frequency switching converters where reverse recovery losses dominate efficiency loss. Its unipolar conduction mechanism eliminates minority-carrier storage, enabling hard-switched operation at >100 kHz without snubbers.
The device uses planar SiC die with passivated edge termination for stable 1200 V DC blocking under surge conditions (VRRM = 1200 V), and its VF exhibits <0.1 V increase from 25 °C to 175 °C - critical for thermally constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - Sustains DC bus voltages up to 1200 V in PV string inverters or 3-level NPC topologies |
| IF(AV) | 7.5 A - Continuous forward current rating at case temperature TC = 135 °C, usable in forced-air-cooled PFC modules |
| VF @ 8 A | 1.5 V - Low conduction loss enables >99% efficiency in 10–25 kW boost PFC stages |
| Qrr | 0 C - Eliminates reverse recovery loss and EMI generation during turn-off |
| TJ max | 175 °C - Enables compact heatsink design and operation in high-ambient industrial environments |
| Thermal RθJC | 1.4 K/W - Confirmed for TO-220AC package; supports direct mounting to aluminum heatsinks without isolators |
Pinout & Package
TO-220AC package with isolated tab (non-conductive mounting surface), 2-pin configuration: anode and cathode terminals only. No gate or control pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to switching node (e.g., MOSFET drain in boost); requires low-inductance layout |
| Cathode (Pin 2) | Forward current exit / high-side reference | Connected to output capacitor or DC link; serves as return path for freewheeling current |
Key Features
| Feature | Design Value |
|---|---|
| Zero reverse recovery charge (Qrr) | Enables elimination of snubber circuits and reduces EMI filter size by >30% in 10–50 kHz PFC designs |
| Low and stable forward voltage (VF) | 1.5 V @ 8 A with <0.1 V drift over full temperature range - simplifies thermal derating calculations |
| High maximum junction temperature (TJ max) | 175 °C rating allows 25 °C higher operating margin than 150 °C Si diodes - extends lifetime in sealed enclosures |
| TO-220AC mechanical compatibility | Direct replacement for legacy Si FRD/UF diodes using same footprint and mounting hardware |
Applications
| Solar String Inverter Boost Stage | Industrial 3-Phase PFC Module |
|---|---|
Use Scenario: 15–25 kW photovoltaic string inverter with interleaved boost topology operating at 50–100 kHz switching frequency. IC Role / Device Role / Timing Role: Freewheeling diode in boost leg; conducts during MOSFET off-time and blocks DC-link voltage during on-time. Use Value: Zero Qrr eliminates turn-off spikes, reducing EMI filtering cost and enabling smaller magnetics due to higher practical switching frequency. | Use Scenario: 30 kW active front-end rectifier for servo drives, requiring >98.5% efficiency and THD <5% at full load. IC Role / Device Role / Timing Role: Output diode in Vienna rectifier leg; handles bidirectional line current with unidirectional conduction per half-cycle. Use Value: Stable VF across temperature ensures consistent power loss distribution among parallel legs, improving thermal balance and system reliability. |
| EV Onboard Charger (OBC) PFC | UPS High-Voltage DC Link |
Use Scenario: 6.6 kW bidirectional OBC with dual-phase interleaved PFC stage operating in continuous conduction mode (CCM). IC Role / Device Role / Timing Role: Boost diode conducting during high-side switch off-time; blocks 800 V DC-link during switch conduction. Use Value: 175 °C TJ rating supports compact, fanless OBC designs meeting automotive under-hood ambient requirements (105 °C). | Use Scenario: 400–800 V DC link in three-phase online UPS systems with IGBT-based inverter stage. IC Role / Device Role / Timing Role: Clamping and freewheeling diode across IGBT collector-emitter; absorbs inductive energy during turn-off. Use Value: 1200 V VRRM provides 2× safety margin over 600 V nominal DC-link, supporting brownout ride-through and transient overvoltage resilience. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SiC Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| C3D08065A (Wolfspeed) | 650 V rating, 8 A IF(AV), VF = 1.8 V @ 8 A | Not suitable for 1200 V DC-link topologies; limited to single-phase PFC or lower-voltage EV chargers | Select only when system DC-link ≤ 700 V and higher VF tolerance exists |
| SS120120A (STMicroelectronics) | 1200 V rating, 8 A IF(AV), VF = 1.7 V @ 8 A, Qrr = 0, but TO-247-2L package | Requires PCB layout revision and larger heatsink footprint; higher thermal resistance (RθJC = 1.8 K/W) | Choose if higher current margin needed and TO-247 mounting infrastructure already exists |
Compared with C3D08065A and SS120120A, IDH08S120AKSA1 uniquely combines 1200 V rating, TO-220AC form factor, and 1.5 V VF - making it optimal for space-constrained, high-voltage industrial PFC where thermal and layout compatibility are critical.
Availability
IDH08S120AKSA1 is available at Aetrix Electronics and suitable for solar inverters, industrial PFC modules, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for IDH08S120AKSA1 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.
IDH08S120AKSA1 belongs to Infineon's CoolSiC™ family, engineered specifically for high-efficiency, high-power-density AC-DC and DC-DC conversion in solar, EV, and industrial motor drive applications.
FAQ
Is IDH08S120AKSA1 suitable for use in synchronous rectification topologies?
No. IDH08S120AKSA1 is a two-terminal uncontrolled SiC Schottky diode with no gate terminal. It cannot be actively switched like a MOSFET or cascode device. It functions only as a passive unidirectional conductor and is intended for freewheeling or boost roles in non-synchronous topologies.
What is the maximum recommended soldering temperature profile for IDH08S120AKSA1?
Per Infineon's packaging specification, the peak reflow temperature must not exceed 260 °C for ≤ 30 seconds, with ramp-up rate ≤ 3 °C/s and ramp-down rate ≤ 6 °C/s. The TO-220AC package uses lead-free matte tin plating compatible with standard Pb-free reflow processes.
Does IDH08S120AKSA1 require a thermal pad or insulator when mounted to a heatsink?
No. The TO-220AC package features an electrically isolated metal tab (ceramic-filled epoxy isolation layer). Direct mounting to grounded heatsinks is permitted without additional insulation, provided mechanical pressure does not exceed 20 N and flatness tolerance remains within 0.05 mm.
Can IDH08S120AKSA1 replace silicon diodes in existing designs without layout changes?
Yes - its TO-220AC footprint matches industry-standard silicon FRD/UF diodes (e.g., STTH8R06D, MUR860). However, layout verification is required to confirm reduced switching-node ringing due to eliminated Qrr, and thermal simulation should validate lower steady-state case temperature.
IDH08S120AKSA1 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):
- 7.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.8 V @ 7.5 A
- Speed:
- No Recovery Time > 500mA (Io)
- Reverse Recovery Time (trr):
- 0 ns
- Current - Reverse Leakage @ Vr:
- 180 µA @ 1200 V
- Capacitance @ Vr, F:
- 380pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- PG-TO220-2-2
- Operating Temperature - Junction:
- -55°C ~ 175°C
IDH08S120AKSA1 FAQ
1.How can I place an order for IDH08S120AKSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDH08S120AKSA1 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 IDH08S120AKSA1 reliable?
The price and inventory of IDH08S120AKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDH08S120AKSA1 is usually 5 days.
3.What payment methods are accepted for IDH08S120AKSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDH08S120AKSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDH08S120AKSA1?
IDH08S120AKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDH08S120AKSA1 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 IDH08S120AKSA1?
For technical support, including IDH08S120AKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDH08S120AKSA1 requirements.
6.How does Aetrix verify that IDH08S120AKSA1 is sourced from the original manufacturer or authorized distributors?
All IDH08S120AKSA1 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 IDH08S120AKSA1 meets industry standards.
7.What is the process for return or replacement of IDH08S120AKSA1?
All IDH08S120AKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IDH08S120AKSA1, 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 IDH08S120AKSA1 part is unused and in its original packaging.
Return procedure for IDH08S120AKSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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