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Taiwan Semiconductor Corporation HS2KFSH
- Part No.:
- HS2KFSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
HS2KFSH.pdf
- Description:
- 75NS, 2A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:28,000
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Product details
Overview
HS2KFSH from Taiwan Semiconductor is a 2 A, 800 V glass-passivated surface-mount fast recovery rectifier in SOD-128 package, featuring 1.48 V forward voltage at 2 A/25°C, 75 ns reverse recovery time, and AEC-Q101 qualification for automotive-grade reliability in DC/DC converters and snubber circuits.
For engineers reviewing the HS2KFSH datasheet, HS2KFSH pinout, HS2KFSH application, or HS2KFSH equivalent, key selection criteria include its 800 V repetitive peak reverse voltage, low-profile SOD-128 thermal performance (RθJL = 17°C/W), junction capacitance of 12 pF at 1 MHz/4 V, and compliance with JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity.
Technical Context
The HS2KFSH is a single-die, unidirectional fast recovery rectifier optimized for high-efficiency switching applications. Its 800 V VRRM, 60 A IFSM (8.3 ms), and 125°C-rated forward voltage of 1.11 V at 2 A enable robust operation under transient surge and elevated temperature conditions.
Thermal design is supported by verified RθJL = 17°C/W and RθJA = 53°C/W on a 5 mm × 5 mm Cu pad, while the 12 pF junction capacitance and 75 ns trr ensure minimal switching loss in high-frequency DC/DC topologies operating up to several hundred kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input stages in 400–600 V DC bus systems with 25% safety margin |
| IF | 2 A continuous - rated for sustained conduction in compact power supplies without forced cooling |
| VF @ 2 A, 25°C | 1.48 V max - limits conduction loss to ≤2.96 W per device at full load |
| trr | 75 ns max - enables use in 200–500 kHz switching converters with low reverse recovery charge |
| CJ @ 1 MHz, 4 V | 12 pF - reduces capacitive coupling noise and EMI in high-dV/dt environments |
| RθJL | 17 °C/W - allows direct PCB copper pour heat sinking without heatsink or thermal vias |
| AEC-Q101 | Qualified - validated for automotive under-hood temperature cycling and mechanical shock requirements |
Pinout & Package
Package: SOD-128 - low-profile, surface-mount plastic package with matte tin-plated leads, polarity indicated by cathode band, weight 0.028 g, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node (e.g., switch node in flyback secondary or buck input) |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to output rail or energy storage node; defines directionality in freewheeling paths |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable leakage current (<1 µA @ 25°C) and long-term reliability under humidity and bias stress |
| Fast recovery (75 ns) | Reduces switching losses and ringing in hard-switched SMPS, improving efficiency over standard rectifiers |
| SOD-128 low-profile footprint | Supports automated placement and fits into height-constrained layouts (max height 1.1 mm) |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in long-life industrial and automotive applications with >15-year field life |
| Moisture sensitivity Level 1 | Eliminates bake requirement before reflow, reducing manufacturing cost and process complexity |
Applications
| Freewheeling Diode in Automotive DC/DC Converters | Snubber Network in Industrial Motor Drives |
|---|---|
Use Scenario: Used across MOSFET switches in 12 V–48 V automotive buck converters supplying ADAS ECUs. IC Role / Device Role / Timing Role: Freewheeling path for inductive current during high-side switch off-time. Use Value: 800 V rating accommodates 4× battery transients; 75 ns trr minimizes voltage overshoot and EMI generation. | Use Scenario: Placed in RCD snubber networks across IGBTs in HVAC inverter drives. IC Role / Device Role / Timing Role: Clamp transient voltage spikes during IGBT turn-off. Use Value: 60 A IFSM withstands repeated surge events; 12 pF CJ avoids resonance with snubber capacitor. |
| High-Voltage Output Rectification in Telecom PSUs | Reverse Polarity Protection in Battery Management Systems |
Use Scenario: Secondary-side rectifier in 3 kW telecom rectifiers with 380 V DC output. IC Role / Device Role / Timing Role: Unidirectional current delivery from transformer secondary to bulk capacitor. Use Value: 800 V VRRM provides margin against reflected transients; 1.48 V VF limits conduction loss at 2 A load. | Use Scenario: Series-connected protection diode in 24 V/48 V BMS main power input. IC Role / Device Role / Timing Role: Blocks reverse current during battery swap or charger misconnection. Use Value: AEC-Q101 qualification ensures survivability in vehicle vibration/shock; SOD-128 enables compact board layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R08 | 800 V, 2 A, TO-220AC package; 75 ns trr; VF = 1.55 V @ 2 A | Through-hole mounting; higher thermal mass but larger footprint and manual assembly required | Preferred where board-level thermal mass or legacy through-hole infrastructure exists |
| ON Semi MUR280 | 800 V, 2 A, DO-201AD package; 75 ns trr; VF = 1.75 V @ 2 A | Radially leaded; requires wave solder or hand-solder; no AEC-Q101 qualification | Acceptable for non-automotive industrial use where cost is prioritized over qualification and profile |
Compared with STTH2R08 and MUR280, the HS2KFSH delivers identical voltage/current ratings and recovery speed in a qualified, low-profile SMD package-enabling automated assembly, space savings, and automotive compliance without trade-offs in electrical performance.
Availability
HS2KFSH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber networks, and telecom power supply rectification requiring stable component supply, long-lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for HS2KFSH 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, serving global automotive, industrial, and consumer markets since 1979.
The HS2KFSH belongs to TSC's HS2xFSH fast recovery rectifier family, engineered specifically for high-reliability, high-efficiency switching power conversion in space-constrained and thermally demanding environments.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HS2KFSH?
The HS2KFSH has a maximum repetitive peak reverse voltage (VRRM) of 800 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2103). This rating applies across the full operating temperature range and is validated for surge conditions per IEC 61000-4-5. The HS2KFSH must not be operated above this voltage to ensure long-term reliability and avoid avalanche breakdown.
Is HS2KFSH qualified for automotive applications?
Yes, the HS2KFSH is explicitly AEC-Q101 qualified, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers temperature cycling, mechanical shock, humidity bias, and other stress tests required for automotive under-hood and chassis-mounted electronics. The HS2KFSH meets these standards in its SOD-128 package with matte tin-plated leads and JESD201 Class 2 whisker resistance.
What is the forward voltage (VF) of HS2KFSH at 2 A and 125°C?
The forward voltage of HS2KFSH is 1.11 V maximum at 2 A and 125°C, per the Electrical Specifications table in the official datasheet. This value reflects real-world conduction loss under elevated thermal conditions typical in enclosed power supplies. At 25°C, VF is 1.48 V max at the same current, demonstrating the device's negative temperature coefficient behavior.
Does HS2KFSH have a specified reverse recovery time (trr)?
Yes, the HS2KFSH has a maximum reverse recovery time (trr) of 75 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is shared with HS2JFSH and HS2MFSH variants and is critical for minimizing switching losses in high-frequency DC/DC converters. The datasheet confirms this value applies across the full operating temperature range.
What is the thermal resistance from junction to lead (RθJL) for HS2KFSH?
The junction-to-lead thermal resistance (RθJL) of HS2KFSH is 17°C/W, measured on a standard 5 mm × 5 mm copper pad test board, as documented in the Thermal Performance section of the datasheet. This low value enables efficient heat transfer directly from the die to the PCB copper, supporting reliable 2 A operation without additional heatsinking in most applications.
HS2KFSH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 800 V
- Capacitance @ Vr, F:
- 12pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2KFSH FAQ
1.How can I place an order for HS2KFSH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2KFSH 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 HS2KFSH reliable?
The price and inventory of HS2KFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2KFSH is usually 5 days.
3.What payment methods are accepted for HS2KFSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2KFSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2KFSH?
HS2KFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2KFSH 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 HS2KFSH?
For technical support, including HS2KFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2KFSH requirements.
6.How does Aetrix verify that HS2KFSH is sourced from the original manufacturer or authorized distributors?
All HS2KFSH 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 HS2KFSH meets industry standards.
7.What is the process for return or replacement of HS2KFSH?
All HS2KFSH units undergo pre-shipment inspection (PSI). If there is an issue with HS2KFSH, 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 HS2KFSH part is unused and in its original packaging.
Return procedure for HS2KFSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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