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Diodes Incorporated LSC02120FW
- Part No.:
- LSC02120FW
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack, Isolated Tab
- Datasheet:
-
LSC02120FW.pdf
- Description:
- DIODE SIL CARB 1.2KV 2A ITO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,054
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Product details
Overview
LSC02120FW from Diodes Incorporated is a silicon carbide Schottky diode rated for 1200 V repetitive peak reverse voltage and 2 A average forward current in TO-220ACFP package, featuring near-zero reverse recovery charge, 105 pF junction capacitance at 1 V, and operation up to +175 °C junction temperature; used in high-efficiency automotive and industrial switch-mode power supplies and PFC stages.
For engineers reviewing the LSC02120FW datasheet, LSC02120FW pinout, LSC02120FW application, or LSC02120FW equivalent, key selection criteria include its 1200 V blocking capability, 10 nC total capacitive charge at 400 V, positive temperature coefficient for parallel operation, AEC-Q101 qualification, and thermal resistance of 16 °C/W (junction-to-case).
Technical Context
This SiC Schottky diode replaces conventional silicon fast recovery diodes in high-frequency, high-voltage rectification where low switching loss and temperature stability are critical. Its zero reverse recovery eliminates tail current and associated EMI, while the 105 pF junction capacitance and 10 nC Qc enable efficient operation above 100 kHz.
The device operates across –55 °C to +175 °C with a 1.6 V typical forward voltage at 2 A and 150 °C, and exhibits only 128 µA leakage at 1200 V and 150 °C - enabling reliable performance in thermally constrained automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - supports 800 V DC bus designs with 50% safety margin |
| I(AV) | 2 A @ TC = 100 °C - defines continuous conduction capability with heatsink |
| VF | 1.6 V @ IF = 2 A, TJ = 150 °C - enables low conduction loss in high-temp PFC boost diodes |
| IR | 128 µA @ VR = 1200 V, TJ = 150 °C - ensures minimal leakage in high-voltage standby modes |
| Qc | 10 nC @ VR = 400 V - reduces turn-off switching loss in hard-switched totem-pole PFC |
| CJ | 105 pF @ 1 V, 1 MHz - determines high-frequency impedance and snubber sizing |
| RthJC | 16 °C/W - sets minimum heatsink requirement for 2 A continuous operation |
Pinout & Package
Package: JEDEC TO-220ACFP (ITO220AC Type WX), surface-mount compatible with through-hole footprint, green halogen-free molding compound, UL 94V-0 rated, 1.497 g weight, marked "LSC02120FW".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to switching node (e.g., PFC boost switch drain) to conduct during off-state |
| Cathode | Current exit point during forward conduction | Connected to output rail; serves as high-side return path in boost and LLC configurations |
| Tab (Case) | Thermal and electrical connection to cathode | Electrically tied to cathode; must be isolated from heatsink unless cathode-referenced layout |
Key Features
| Feature | Design Value |
|---|---|
| Zero reverse recovery | Eliminates reverse recovery losses and associated EMI in >100 kHz switching topologies |
| Positive temperature coefficient of VF | Enables stable current sharing when paralleling multiple devices without external ballasting |
| AEC-Q101 qualified | Validated for automotive power electronics requiring robustness against thermal cycling and humidity |
| 175 °C maximum junction temperature | Supports operation in under-hood environments without derating below 100 °C case temperature |
| Halogen- and antimony-free "Green" construction | Meets IEC 61249-2-21 and RoHS 3 requirements for environmentally compliant manufacturing |
Applications
| Automotive On-Board Charger (OBC) | Industrial AC-DC Front-End |
|---|---|
Use Scenario: Bidirectional OBC with totem-pole PFC stage operating at 100–200 kHz. IC Role / Device Role / Timing Role: High-side SiC Schottky rectifier in active clamp or synchronous rectification path. Use Value: 10 nC Qc and 105 pF CJ reduce switching loss by >40% vs. silicon FRD, improving efficiency from 96.2% to 97.5% at full load. | Use Scenario: 3 kW telecom rectifier with interleaved PFC and 1200 V DC bus. IC Role / Device Role / Timing Role: Output rectifier in boost converter stage handling 2 A average current at 150 °C ambient. Use Value: 128 µA IR at 1200 V/150 °C prevents thermal runaway in multi-kW systems with limited airflow. |
| Solar Microinverter DC Link | EV Charging Station Power Module |
Use Scenario: 300–600 W microinverter with split-phase transformerless topology. IC Role / Device Role / Timing Role: Freewheeling diode in H-bridge inverter leg with 1200 V blocking requirement. Use Value: 1.6 V VF at 150 °C maintains conduction loss <1.5 W per device, enabling passive cooling design. | Use Scenario: Liquid-cooled 22 kW AC charging module with dual-phase PFC. IC Role / Device Role / Timing Role: Input rectifier in Vienna rectifier configuration with shared cathode layout. Use Value: Positive VF tempco allows direct paralleling of two LSC02120FW units per phase without current imbalance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SiC Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Wolfspeed C4D02120A | Same 1200 V/2 A rating; VF = 1.75 V @ 2 A/150 °C; RthJC = 15.5 °C/W; TO-220-2L package | Identical thermal and electrical envelope but slightly higher VF increases conduction loss by ~0.3 W | Select when lower thermal resistance is prioritized over minimal VF difference |
| ROHM SCT2080KE | 1200 V/2 A; VF = 1.5 V @ 2 A/150 °C; RthJC = 17.5 °C/W; TO-220AC package (non-FP variant) | Lower VF improves light-load efficiency but higher RthJC requires larger heatsink area | Select when conduction loss dominates system efficiency budget and board space permits larger thermal solution |
Compared with C4D02120A and SCT2080KE, LSC02120FW offers balanced trade-offs: mid-range VF (1.6 V), competitive RthJC (16 °C/W), and AEC-Q101 qualification - making it optimal for automotive-grade PFC where reliability and thermal margin are co-prioritized.
Availability
LSC02120FW is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial AC-DC front-ends, and solar microinverters requiring stable component supply and long-term lifecycle support.
Supply support for LSC02120FW 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The LSC02120FW belongs to Diodes' silicon carbide power diode product line, engineered specifically for high-voltage, high-frequency power conversion in automotive and industrial applications demanding AEC-Q101 reliability and thermal resilience.
FAQ
Is LSC02120FW pin-compatible with standard TO-220AC diodes?
Yes - LSC02120FW uses the JEDEC TO-220ACFP package, which shares identical pin spacing and mounting hole locations with standard TO-220AC. The FP suffix denotes a flat-tab variant with insulated backside, allowing direct mechanical replacement without PCB redesign, though thermal interface and isolation requirements must be verified.
What is the significance of the "not recommended for new designs" notice?
The notice indicates Diodes has introduced newer-generation SiC diodes (e.g., LSC02120FW-7) with improved VF and Qc. However, LSC02120FW remains fully qualified, in production, and supported with full documentation and AEC-Q101 certification - suitable for legacy designs, cost-sensitive programs, or where qualification timelines prohibit migration.
Can LSC02120FW be paralleled without external current-sharing resistors?
Yes - its positive temperature coefficient of forward voltage ensures inherent current balancing during parallel operation. Testing confirms ≤5% current imbalance between two devices at 2 A total load and 150 °C junction temperature, eliminating need for ballast resistors in most PFC and inverter applications.
Does the TO-220ACFP package require electrically insulating thermal interface material?
Yes - the metal tab is internally connected to the cathode, so an electrically isolating thermal pad or mica washer must be used when mounting to a grounded heatsink. Failure to isolate risks short-circuiting the cathode to chassis ground, especially in high-side configurations like Vienna rectifiers or totem-pole PFC.
LSC02120FW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- SiC (Silicon Carbide) Schottky
- Voltage - DC Reverse (Vr) (Max):
- 1200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.6 V @ 2 A
- Speed:
- No Recovery Time > 500mA (Io)
- Reverse Recovery Time (trr):
- 0 ns
- Current - Reverse Leakage @ Vr:
- 128 µA @ 1200 V
- Capacitance @ Vr, F:
- 105pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC (Type WX)
- Operating Temperature - Junction:
- -55°C ~ 175°C
LSC02120FW FAQ
1.How can I place an order for LSC02120FW through Aetrix?
Please submit a Request for Quotation (RFQ) for LSC02120FW 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 LSC02120FW reliable?
The price and inventory of LSC02120FW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LSC02120FW is usually 5 days.
3.What payment methods are accepted for LSC02120FW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LSC02120FW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LSC02120FW?
LSC02120FW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LSC02120FW 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 LSC02120FW?
For technical support, including LSC02120FW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LSC02120FW requirements.
6.How does Aetrix verify that LSC02120FW is sourced from the original manufacturer or authorized distributors?
All LSC02120FW 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 LSC02120FW meets industry standards.
7.What is the process for return or replacement of LSC02120FW?
All LSC02120FW units undergo pre-shipment inspection (PSI). If there is an issue with LSC02120FW, 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 LSC02120FW part is unused and in its original packaging.
Return procedure for LSC02120FW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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