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Taiwan Semiconductor Corporation HS2K
- Part No.:
- HS2K
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
HS2K.pdf
- Description:
- DIODE GEN PURP 800V 2A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,491
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Product details
Overview
HS2K from Taiwan Semiconductor is a 800 V repetitive peak reverse voltage, 2 A average forward current, surface-mount fast recovery rectifier in DO-214AA (SMB) package, featuring 1.7 V max forward voltage at 2 A and 75 ns reverse recovery time - used in high-efficiency AC/DC converters and industrial SMPS front-end stages.
For engineers reviewing the HS2K datasheet, HS2K pinout, HS2K application, or HS2K equivalent, key selection criteria include its 800 V VRRM, 50 A surge rating, 150 °C junction temperature limit, RoHS- and halogen-free compliance, and SMB footprint compatibility with automated SMT assembly.
Technical Context
The HS2K is a single-die, glass-passivated silicon junction rectifier optimized for fast switching in high-frequency power conversion. Its 75 ns reverse recovery time and low 30 pF junction capacitance at 4 V support reduced switching losses in 50–500 kHz SMPS topologies.
Thermal performance is defined by an 80 °C/W junction-to-ambient resistance under standard PCB mounting conditions. The device operates across –55 °C to +150 °C junction temperature range and maintains ≤5 µA reverse leakage at 25 °C and rated 800 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input rectification in universal-line (85–265 VAC) SMPS with ≥2× safety margin |
| IF | 2 A continuous - delivers stable output power up to ~100 W in compact SMB-footprint designs |
| VF (max) | 1.7 V @ 2 A, 25 °C - limits conduction loss to ≤3.4 W per device at full load |
| trr | 75 ns - enables efficient operation in hard-switched flyback and forward converters above 100 kHz |
| CJ | 30 pF @ 1 MHz, 4 V - minimizes capacitive coupling noise and EMI generation in high-dV/dt circuits |
| RθJA | 80 °C/W - requires ≥1 cm² copper pour for thermal management at full IF in still air |
| IFSM | 50 A @ 8.3 ms - withstands inrush surges from cold-start line transients without failure |
Pinout & Package
DO-214AA (SMB) plastic package with matte tin-plated leads; cathode indicated by band; polarity-critical for series/parallel rectifier configurations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for AC or positive-side rectification | Connected to transformer secondary or bridge input; must handle full IF and IFSM current stress |
| Cathode | Output terminal for DC output path | Connected to bulk capacitor or post-regulator stage; carries same current as anode with 1.7 V drop |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery (75 ns) | Reduces switching loss and diode-induced ringing in high-frequency flyback converters |
| Glass passivated junction | Ensures long-term reliability under humidity and thermal cycling in industrial environments |
| RoHS & halogen-free | Meets IEC 61249-2-21 and global environmental compliance for consumer and industrial end equipment |
| SMB package with J-STD-002 solderability | Supports high-yield reflow assembly without lead finish degradation or dewetting |
Applications
| Industrial SMPS Front-End | LED Driver Secondary Rectification |
|---|---|
Use Scenario: High-efficiency 60–120 W offline SMPS for PLC power supplies and motor drives. IC Role / Device Role / Timing Role: Primary-side output rectifier in discontinuous conduction mode (DCM) flyback topology. Use Value: 800 V VRRM accommodates reflected voltage spikes and line surges; 75 ns trr prevents cross-conduction loss with synchronous MOSFETs. | Use Scenario: Constant-current LED driver for street lighting with universal AC input. IC Role / Device Role / Timing Role: Secondary-side freewheeling rectifier in quasi-resonant (QR) flyback converter. Use Value: Low 1.7 V VF reduces heat buildup in enclosed luminaires; SMB footprint enables compact board layout. |
| AC/DC Adapter Output Stage | DC-DC Converter Input Protection |
Use Scenario: 36 W laptop adapter with dual-output +12 V/+5 V rails. IC Role / Device Role / Timing Role: Output rectifier on main +12 V winding, operating at 65 kHz switching frequency. Use Value: 30 pF CJ minimizes EMI during turn-off; 50 A IFSM handles startup inrush without derating. | Use Scenario: 48 V input industrial DC-DC module with reverse-polarity and overvoltage protection. IC Role / Device Role / Timing Role: Input polarity protection diode in series with primary-side fuse and TVS. Use Value: 150 °C TJMAX ensures survival during sustained overvoltage events; glass passivation resists moisture-induced leakage drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R08 | 800 V VRRM, 2 A IF, 75 ns trr, but TO-220AC package (larger footprint, higher RθJA) | Requires heatsink for >1 A continuous use; unsuitable for space-constrained SMB layouts | Select when thermal budget allows discrete heatsinking and board area permits TO-220 footprint |
| ES2J | 600 V VRRM, 2 A IF, 35 ns trr, same DO-214AA package | Limited to 600 V systems; lower VF (1.7 V typical vs. 1.7 V max for HS2K) but insufficient for 800 V surge margins | Select only in 230 VAC-only designs where 600 V rating meets safety certification requirements |
Compared with STTH2R08 and ES2J, the HS2K uniquely balances 800 V rating, SMB footprint, and 75 ns recovery in a single cost-effective component - enabling compact, high-reliability rectification without heatsinks or voltage derating compromises.
Availability
HS2K is available at Aetrix Electronics and suitable for industrial SMPS, LED drivers, and AC/DC adapters requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for HS2K 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 power, automotive, and industrial markets since 1979.
The HS2K belongs to TSC's HS2x family of high-voltage fast recovery rectifiers designed specifically for energy-efficient, high-density AC/DC and DC/DC power conversion in cost-sensitive industrial and consumer applications.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HS2K?
The HS2K 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 L2102). This rating defines the highest reverse voltage the HS2K can block repeatedly without breakdown under normal operating conditions and is critical for selecting appropriate safety margins in 230 VAC and universal-input power supplies.
Does HS2K have a specified forward voltage (VF) at 2 A?
Yes, the HS2K has a maximum forward voltage (VF) of 1.7 V at 2 A forward current and 25 °C junction temperature, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents the worst-case conduction loss - essential for thermal design and efficiency calculations in the HS2K's target applications.
What is the reverse recovery time (trr) of HS2K and how is it tested?
The HS2K has a maximum reverse recovery time (trr) of 75 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as specified in the datasheet's Electrical Specifications section. This test method reflects real-world switching behavior in hard-commutated topologies and directly impacts switching loss and EMI in the HS2K's intended SMPS and converter applications.
Is HS2K compliant with RoHS and halogen-free standards?
Yes, the HS2K is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. These compliance attributes are verified for the HS2K's molding compound and lead finish, supporting environmental requirements for commercial, industrial, and consumer end equipment using the HS2K.
What package type does HS2K use and what are its mechanical identifiers?
The HS2K uses the DO-214AA (SMB) surface-mount package, with matte tin-plated leads solderable per J-STD-002, UL 94V-0 molding compound, and cathode polarity indicated by a visible band. Its weight is approximately 0.090 g, and the package outline matches JEDEC standard MS-012, ensuring compatibility with standard SMT pick-and-place and reflow processes for the HS2K.
HS2K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- 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:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2K FAQ
1.How can I place an order for HS2K through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2K 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 HS2K reliable?
The price and inventory of HS2K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2K is usually 5 days.
3.What payment methods are accepted for HS2K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2K?
HS2K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2K 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 HS2K?
For technical support, including HS2K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2K requirements.
6.How does Aetrix verify that HS2K is sourced from the original manufacturer or authorized distributors?
All HS2K 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 HS2K meets industry standards.
7.What is the process for return or replacement of HS2K?
All HS2K units undergo pre-shipment inspection (PSI). If there is an issue with HS2K, 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 HS2K part is unused and in its original packaging.
Return procedure for HS2K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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