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Taiwan Semiconductor Corporation HS2DFL
- Part No.:
- HS2DFL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
HS2DFL.pdf
- Description:
- 50NS, 2A, 200V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:8,973
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Product details
Overview
HS2DFL from Taiwan Semiconductor is a 2 A, 200 V glass-passivated surface-mount rectifier in SOD-123FL package, optimized for high-efficiency DC-DC converters and switching-mode inverters with low forward voltage (0.93 V at 2 A, 25°C) and ultra-low reverse leakage (5 µA at 25°C). It operates up to 150°C junction temperature and supports automated placement.
For engineers reviewing the HS2DFL datasheet, HS2DFL pinout, HS2DFL application, or HS2DFL equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 40 A surge rating, 81 °C/W junction-to-lead thermal resistance, and SOD-123FL footprint compatibility with space-constrained power stages.
Technical Context
The HS2DFL is a single-die, silicon planar epitaxial fast recovery rectifier with glass-passivated junction for enhanced reliability and moisture resistance (J-STD-020 Level 1). Its 50 ns reverse recovery time enables efficient operation in high-frequency switching topologies.
Thermal performance is characterized on a 5 mm × 5 mm copper pad PCB: RθJL = 81 °C/W and RθJA = 116 °C/W. Forward voltage exhibits strong temperature dependence-dropping to 0.83 V at 2 A and 125°C-supporting stable conduction under thermal stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Current (IF) | 2 A continuous - supports compact 2 A power rails without forced cooling |
| Repetitive Peak Reverse Voltage (VRRM) | 200 V - suitable for 12–48 V input DC-DC stages with 2× safety margin |
| Surge Peak Forward Current (IFSM) | 40 A (8.3 ms) - withstands inrush and transient overloads in SMPS |
| Forward Voltage (VF) | 0.93 V max at 2 A, 25°C - minimizes conduction loss and heat generation |
| Reverse Recovery Time (trr) | 50 ns max - enables >100 kHz switching with low switching loss |
| Junction Temperature Range (TJ) | −55°C to +150°C - rated for industrial and automotive under-hood environments |
| Junction-to-Lead Thermal Resistance (RθJL) | 81 °C/W - allows direct thermal path to PCB copper for passive dissipation |
Pinout & Package
Package: SOD-123FL - surface-mount, molded plastic case with matte tin-plated leads (J-STD-002 compliant), polarity indicated by cathode band, weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to lower-potential side of circuit; accepts forward current into device |
| Cathode | Output current terminal | Connected to higher-potential side; marked by visible band; delivers rectified output |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Prevents moisture ingress and corrosion, enabling long-term reliability in humid environments per J-STD-020 Level 1 |
| Low reverse leakage (IR) | ≤5 µA at 25°C - reduces standby power loss in battery-backed and energy-sensitive systems |
| Fast reverse recovery (trr) | ≤50 ns - lowers switching losses and EMI in high-frequency converters |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS directives - supports green manufacturing and end-of-life recycling |
Applications
| DC-DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12 V to 5 V/3.3 V buck-derived converters. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during low-side switch off-time. Use Value: 0.93 V VF at 2 A reduces conduction loss by ~15% vs. standard 1N5819, improving efficiency at light-to-moderate loads. | Use Scenario: Output stage rectification in 24 V input solar micro-inverters operating at 50–100 kHz. IC Role / Device Role / Timing Role: Unidirectional current path converting high-frequency AC to DC before filtering. Use Value: 50 ns trr ensures minimal tail current overlap, reducing switching loss and thermal stress on MOSFETs. |
| Freewheeling Diode | Industrial Power Supply |
Use Scenario: Inductive load flyback protection in 24 V PLC output modules driving solenoids and relays. IC Role / Device Role / Timing Role: Provides low-impedance path for stored inductor energy during switch turn-off. Use Value: 40 A IFSM handles 10× nominal current surges without degradation, ensuring robustness against mechanical contact bounce. | Use Scenario: Input bridge or OR-ing diode in DIN-rail mounted 48 V telecom power supplies. IC Role / Device Role / Timing Role: High-reliability rectification in hot-swap and redundancy circuits. Use Value: 150°C TJ max and 81 °C/W RθJL enable stable operation without heatsinks in confined enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MURS220T3G | Same SOD-123FL package, 200 V VRRM, but 35 ns trr and 0.97 V VF at 2 A - slightly faster but higher conduction loss | Better suited for ultra-high-frequency (>200 kHz) designs where switching loss dominates | Select MURS220T3G when trr < 40 ns is required; HS2DFL preferred for thermally constrained layouts due to lower VF |
| Vishay VS-2EY20-M3/5AT | SOD-123FL, 200 V, but 1.05 V VF at 2 A and 75 ns trr - slower and less efficient conduction | Lower cost alternative where efficiency and thermal headroom are secondary to BOM simplification | Choose VS-2EY20-M3/5AT only if existing design tolerates +0.12 V VF increase and 25 ns trr penalty |
Compared with MURS220T3G and VS-2EY20-M3/5AT, the HS2DFL delivers the optimal balance of low forward voltage (0.93 V), fast recovery (50 ns), and proven thermal performance (81 °C/W RθJL) for space- and efficiency-critical 2 A power conversion stages.
Availability
HS2DFL is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and freewheeling applications requiring stable component supply, consistent parametric performance across production lots, and full traceability from wafer to shipment.
Supply support for HS2DFL 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs since 1979.
The HS2DFL belongs to TSC's HS2xFL high-efficiency surface-mount rectifier family, engineered specifically for high-frequency switching power supplies demanding low VF, fast trr, and rugged packaging for automated assembly.
FAQ
What is the maximum junction temperature rating for HS2DFL?
The HS2DFL has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings in the official datasheet. This allows reliable operation in industrial and automotive ambient environments without active cooling, provided thermal design accounts for its 81 °C/W junction-to-lead resistance. Derating curves confirm usable current capacity down to −55°C, making HS2DFL suitable for wide-temperature-range deployments.
Does HS2DFL have a specified reverse recovery time (trr)?
Yes, the HS2DFL has a maximum reverse recovery time (trr) of 50 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is explicitly listed in the Electrical Specifications table for the HS2DFL variant and distinguishes it from higher-voltage members of the same family (e.g., HS2JFL–HS2MFL, rated at 75 ns). The 50 ns trr supports efficient operation in converters switching above 100 kHz.
What is the forward voltage (VF) of HS2DFL at 2 A and 125°C?
The HS2DFL exhibits a typical forward voltage of 0.83 V and a maximum of 0.95 V at 2 A and 125°C, as specified in the Electrical Specifications table. This temperature-dependent reduction from room-temperature VF (0.93 V max) improves thermal stability in high-load conditions and reduces self-heating feedback loops in densely packed power stages.
Is HS2DFL RoHS and halogen-free compliant?
Yes, HS2DFL is fully RoHS compliant and halogen-free per IEC 61249-2-21. These compliance statements are confirmed in the FEATURES section of the official datasheet and supported by Taiwan Semiconductor's material declarations. The device uses matte tin-plated leads and UL 94V-0 molding compound, meeting environmental requirements for consumer, industrial, and automotive electronics.
What marking code appears on the HS2DFL device body?
The HS2DFL is marked with "H2DF" on its top surface, as specified in the Absolute Maximum Ratings table. This 4-character code uniquely identifies the 200 V variant within the HS2xFL family and is used for visual inspection and automated optical recognition during SMT assembly. Polarity is indicated by a cathode band adjacent to the marking.
HS2DFL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 21pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2DFL FAQ
1.How can I place an order for HS2DFL through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2DFL 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 HS2DFL reliable?
The price and inventory of HS2DFL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2DFL is usually 5 days.
3.What payment methods are accepted for HS2DFL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2DFL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2DFL?
HS2DFL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2DFL 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 HS2DFL?
For technical support, including HS2DFL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2DFL requirements.
6.How does Aetrix verify that HS2DFL is sourced from the original manufacturer or authorized distributors?
All HS2DFL 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 HS2DFL meets industry standards.
7.What is the process for return or replacement of HS2DFL?
All HS2DFL units undergo pre-shipment inspection (PSI). If there is an issue with HS2DFL, 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 HS2DFL part is unused and in its original packaging.
Return procedure for HS2DFL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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