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Taiwan Semiconductor Corporation HS2KA-T
- Part No.:
- HS2KA-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
HS2KA-T.pdf
- Description:
- 75NS, 2A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:8,781
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Product details
Overview
HS2KA-T from Taiwan Semiconductor is a 2 A, 800 V repetitive peak reverse voltage (VRRM) high-efficiency surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring 1.40 V max forward voltage at 2 A and 25°C, 75 ns reverse recovery time, and 12 pF junction capacitance - used in DC-DC converters and switching-mode inverters.
For engineers reviewing the HS2KA-T datasheet, HS2KA-T pinout, HS2KA-T application, or HS2KA-T equivalent, key selection criteria include its 800 V blocking capability, thermal resistance (RθJL = 14 °C/W), low leakage (<5 µA @ 25°C), RoHS/halogen-free compliance, and suitability for automated SMT placement in power conversion stages.
Technical Context
The HS2KA-T is a single-die, glass-passivated, fast-recovery silicon rectifier optimized for high-voltage switching applications. Its 75 ns reverse recovery time and 12 pF junction capacitance support efficient operation in 50–500 kHz SMPS topologies, while the 14 °C/W junction-to-lead thermal resistance enables reliable 2 A continuous conduction on standard PCB copper pads.
Designed for unidirectional current flow with cathode-band polarity marking, it operates across –55°C to +150°C junction temperature range and meets JESD201 Class 1 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - maximum repetitive reverse voltage the device blocks without breakdown |
| IF | 2 A - continuous average forward current rating at 75°C case temperature |
| VF (max) | 1.40 V @ 2 A, 25°C - forward conduction loss impacting efficiency in high-current paths |
| trr | 75 ns - reverse recovery time affecting switching losses and EMI in hard-switched converters |
| CJ | 12 pF @ 1 MHz, 4 V - junction capacitance influencing high-frequency snubbing and resonant behavior |
| IR (max) | 5 µA @ 25°C - low reverse leakage critical for hold-up and standby power integrity |
| RθJL | 14 °C/W - thermal resistance from junction to lead, enabling direct heatsinking via PCB copper |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, molded plastic case with matte tin-plated leads, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to lower-potential side of rectification path; accepts 2 A continuous forward current |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; withstands up to 800 V reverse bias; ties to output rail or switching node |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability and humidity resistance in industrial environments |
| Fast recovery (75 ns) | Reduces switching losses and improves efficiency in 100–300 kHz DC-DC converters |
| Low IR (≤5 µA @ 25°C) | Minimizes standby power loss in offline adapters and energy-sensitive systems |
| DO-214AC (SMA) package | Enables high-density automated placement and reflow compatibility per J-STD-002 |
| RoHS & halogen-free | Meets IEC 61249-2-21 and environmental compliance for global commercial/industrial shipments |
Applications
| DC-DC Converter Primary Side | Switching Inverter Freewheeling Path |
|---|---|
Use Scenario: High-voltage input stage of isolated flyback or forward converter handling 375–400 V DC bus. IC Role / Device Role / Timing Role: Output rectifier conducting during transformer reset phase; handles 2 A average forward current. Use Value: 800 V VRRM provides 20% margin over 400 V bus; 1.40 V VF limits conduction loss to <2.8 W at full load. | Use Scenario: Freewheeling diode across inductive load in half-bridge motor inverter (e.g., HVAC blower). IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during high-side switch off-time. Use Value: 75 ns trr prevents reverse recovery shoot-through; 14 °C/W RθJL supports thermal stability under 100% duty cycle. |
| Industrial AC-DC Adapter Secondary | Telecom Power Supply Output Stage |
Use Scenario: Secondary-side rectification in universal-input 24 V/2 A industrial adapter. IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer secondary AC to regulated DC output. Use Value: 2 A IF rating matches output requirement; 5 µA IR ensures <1 mW standby dissipation at 24 V. | Use Scenario: OR-ing diode in redundant 48 V telecom power shelf with hot-swap capability. IC Role / Device Role / Timing Role: Blocks reverse current from backup supply while conducting forward current during main supply operation. Use Value: 800 V VRRM accommodates transient surges up to 600 V; DO-214AC footprint allows compact dual-diode layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R08 | Same 800 V VRRM, 2 A IF, but 60 ns trr and 1.25 V VF @ 2 A; TO-220AC package | Requires through-hole mounting and heatsink; higher thermal mass slows transient response | Prefer when board space permits and higher surge robustness (IFSM = 100 A) is needed |
| MBR260 | 60 V VRRM, Schottky architecture, 0.75 V VF; same DO-214AC package | Not suitable for >100 V reverse bias; limited to low-voltage synchronous rectification | Select only for sub-60 V output stages where ultra-low VF outweighs voltage limitation |
Compared with STTH2R08 and MBR260, the HS2KA-T uniquely balances 800 V blocking, surface-mount DO-214AC packaging, and 75 ns recovery for cost-sensitive, space-constrained industrial SMPS - offering superior voltage rating vs. MBR260 and better SMT integration vs. STTH2R08.
Availability
HS2KA-T is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and freewheeling applications requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for HS2KA-T 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 industrial, computing, and consumer markets since 1979.
The HS2KA-T belongs to TSC's HS2x series of high-voltage surface-mount rectifiers, designed specifically for high-efficiency, high-reliability power conversion in space-constrained SMT applications.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the HS2KA-T?
The HS2KA-T 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 D2111). This rating defines the highest reverse voltage the diode can block repeatedly without avalanche breakdown under normal operating conditions, making HS2KA-T suitable for 400 V DC bus applications with safety margin.
What is the forward voltage (VF) of the HS2KA-T at 2 A and 25°C?
The forward voltage (VF) of the HS2KA-T is 1.40 V maximum at 2 A forward current and 25°C junction temperature, per the Electrical Specifications table. This value represents the worst-case conduction drop under rated conditions and directly impacts power loss calculation - for example, yielding ≤2.8 W dissipation at full 2 A load.
Does the HS2KA-T have a fast recovery time, and what is its value?
Yes, the HS2KA-T is a fast-recovery rectifier with a reverse recovery time (trr) of 75 ns, specified under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A test conditions. This value applies to HS2JA-T, HS2KA-T, and HS2MA-T variants and enables efficient operation in medium-frequency switching power supplies without excessive switching loss or EMI generation.
What package type does the HS2KA-T use, and is it RoHS compliant?
The HS2KA-T uses the DO-214AC (SMA) surface-mount package with matte tin-plated leads, and it is RoHS compliant and halogen-free per IEC 61249-2-21. The device meets J-STD-020 moisture sensitivity Level 1 and JESD201 Class 1 whisker resistance, confirming suitability for lead-free reflow assembly and long-term reliability in commercial and industrial environments.
What is the junction-to-lead thermal resistance (RθJL) of the HS2KA-T?
The junction-to-lead thermal resistance (RθJL) of the HS2KA-T is 14 °C/W, measured with the device mounted on a 5 mm × 5 mm copper pad PCB per the Thermal Performance section. This parameter quantifies how effectively heat transfers from the silicon die to the PCB copper, supporting thermal design for continuous 2 A operation without external heatsinking in typical industrial layouts.
HS2KA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- 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:
- 26pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2KA-T FAQ
1.How can I place an order for HS2KA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2KA-T 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 HS2KA-T reliable?
The price and inventory of HS2KA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2KA-T is usually 5 days.
3.What payment methods are accepted for HS2KA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2KA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2KA-T?
HS2KA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2KA-T 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 HS2KA-T?
For technical support, including HS2KA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2KA-T requirements.
6.How does Aetrix verify that HS2KA-T is sourced from the original manufacturer or authorized distributors?
All HS2KA-T 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 HS2KA-T meets industry standards.
7.What is the process for return or replacement of HS2KA-T?
All HS2KA-T units undergo pre-shipment inspection (PSI). If there is an issue with HS2KA-T, 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 HS2KA-T part is unused and in its original packaging.
Return procedure for HS2KA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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