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Taiwan Semiconductor Corporation HS2KH
- Part No.:
- HS2KH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
HS2KH.pdf
- Description:
- 75NS, 2A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
HS2KH from Taiwan Semiconductor is a 800 V, 2 A surface-mount high-efficiency fast recovery rectifier diode in DO-214AA (SMB) package, featuring 75 ns reverse recovery time, 1.7 V forward voltage at 2 A, and AEC-Q101 qualification for automotive power conversion and freewheeling applications.
For engineers reviewing the HS2KH datasheet, HS2KH pinout, HS2KH application, or HS2KH equivalent, key selection criteria include peak reverse voltage (800 V), forward current rating (2 A), thermal resistance (80 °C/W), junction capacitance (30 pF), and automotive-grade reliability per AEC-Q101.
Technical Context
The HS2KH operates as a single-die, unidirectional silicon rectifier with glass-passivated junction and matte tin-plated leads compliant with J-STD-002 solderability. Its 800 V VRRM and 75 ns trr support high-frequency switching in DC/DC converters and snubber circuits.
Designed for operation from −55 °C to +150 °C junction temperature, the device delivers 50 A non-repetitive surge capability (8.3 ms half-sine) and maintains ≤150 µA reverse leakage at 125 °C, enabling robust performance in automotive lighting and engine control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input rails up to 560 V DC in industrial and automotive DC/DC stages |
| IF | 2 A continuous - sustains steady-state output current in compact 12–48 V converter designs |
| trr | 75 ns - enables efficient operation at switching frequencies up to ~1 MHz in flyback and boost topologies |
| VF | 1.7 V @ 2 A, 25 °C - limits conduction loss to ≤3.4 W per device under full load |
| RθJA | 80 °C/W - requires ≥25 mm² copper pour for thermal management at full IF in SMB footprint |
| CJ | 30 pF @ 4 V - minimizes capacitive coupling noise in high-dv/dt gate-drive or snubber paths |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, cathode-indicated by band, matte tin-plated leads, UL 94V-0 molding compound, 0.090 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of inductive load or transformer secondary |
| Cathode | Current exit point during forward conduction; reverse-biased terminal | Marked by band; ties to higher-potential node (e.g., switch node or rail) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| Glass passivated junction | Enhances moisture resistance and long-term reliability in humid under-hood environments |
| Fast recovery (75 ns) | Reduces switching losses and EMI generation compared to standard rectifiers in 100–500 kHz converters |
| Halogen-free (IEC 61249-2-21) | Meets RoHS and automotive ELV directive requirements for sustainable manufacturing |
Applications
| Automotive DC/DC Converter | LED Headlamp Driver |
|---|---|
Use Scenario: Step-down conversion from 12 V battery to regulated 5–24 V for vehicle infotainment and ADAS sensors. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck regulator output stage. Use Value: 800 V VRRM provides margin against load-dump transients; 75 ns trr minimizes dead-time losses. | Use Scenario: Constant-current LED driver for adaptive front lighting systems (AFS) with PWM dimming. IC Role / Device Role / Timing Role: Snubber diode across MOSFET switch to clamp inductive kick and suppress voltage spikes. Use Value: 50 A IFSM withstands repetitive surge events; low CJ (30 pF) reduces capacitive coupling into sensitive analog feedback paths. |
| Industrial Power Supply | Freewheeling in Relay/Actuator Control |
Use Scenario: Secondary-side rectification in isolated 24–48 V telecom or PLC power supplies. IC Role / Device Role / Timing Role: Output rectifier in flyback or forward converter with 100–300 kHz switching. Use Value: 2 A IF and 1.7 V VF balance conduction loss and thermal footprint in space-constrained SMB layout. | Use Scenario: Inductive load suppression for 24 V solenoid valves and contactor coils in factory automation. IC Role / Device Role / Timing Role: Freewheeling path for stored magnetic energy during coil de-energization. Use Value: Fast 75 ns recovery prevents voltage overshoot beyond 800 V rating; AEC-Q101 ensures field longevity in harsh industrial settings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-2EYH08-M3 | Same DO-214AA package, 800 V VRRM, but 1.35 V VF @ 2 A and 50 ns trr | Better efficiency in high-frequency (>300 kHz) converters due to lower VF and faster trr | Select when minimizing conduction and switching loss is prioritized over AEC-Q101 compliance |
| ON Semiconductor MUR280EG | DO-204AL (DO-41) through-hole, 800 V VRRM, 1.75 V VF, 75 ns trr, no AEC-Q101 | Requires PCB rework for through-hole assembly; lacks automotive qualification | Acceptable for cost-sensitive industrial designs where surface-mount and automotive qualification are not required |
Compared with VS-2EYH08-M3 and MUR280EG, the HS2KH uniquely combines AEC-Q101 qualification, SMB surface-mount compatibility, and 800 V/2 A ratings-making it the preferred choice for automotive-grade DC/DC and lighting modules requiring zero-layout change and certified reliability.
Availability
HS2KH is available at Aetrix Electronics and suitable for automotive DC/DC converters, LED headlamp drivers, and industrial power supplies requiring stable component supply, long-lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for HS2KH 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and automotive qualification capabilities.
The HS2KH belongs to TSC's HS2xH high-efficiency fast recovery rectifier family, engineered specifically for automotive and industrial power conversion where high VRRM, fast trr, and AEC-Q101 reliability are mandatory.
FAQ
What is the maximum junction temperature rating for HS2KH?
The HS2KH has a maximum junction temperature (TJ) rating of +150 °C, verified per absolute maximum ratings table in the official TSC datasheet Version A2102. This allows reliable operation in under-hood automotive environments and enclosed industrial power supplies. Derating curves confirm 2 A continuous current is maintainable up to 100 °C ambient with appropriate PCB copper area. The HS2KH must not exceed this limit to ensure long-term parametric stability and AEC-Q101 compliance.
Is HS2KH pin-compatible with other devices in the HS2xH series?
Yes, all HS2xH devices-including HS2AH, HS2BH, HS2DH, HS2FH, HS2GH, HS2JH, HS2KH, and HS2MH-share identical DO-214AA (SMB) package dimensions, anode/cathode terminal layout, and polarity marking (cathode band). The HS2KH can be substituted within the same footprint for different VRRM requirements without PCB modification, provided thermal and electrical margins are validated for the target application.
Does HS2KH meet automotive qualification standards?
Yes, the HS2KH is explicitly qualified to AEC-Q101 Rev D for stress testing including HTSL, TC, UHAST, and bond wire pull. This qualification is documented on page 1 of the TSC HS2AH–HS2MH datasheet (Version A2102) under FEATURES. The HS2KH is approved for use in automotive powertrain, body electronics, and lighting systems where component-level reliability is mandated.
What is the forward voltage drop of HS2KH at rated current?
The HS2KH exhibits a maximum forward voltage (VF) of 1.7 V at 2 A forward current and 25 °C junction temperature, as specified in the ELECTRICAL SPECIFICATIONS table (page 2, Version A2102). At 125 °C, VF decreases slightly due to negative temperature coefficient; actual measured values typically range from 1.55 V to 1.65 V under full-load thermal equilibrium. This VF directly determines conduction loss in HS2KH-based designs.
How does HS2KH compare to standard PN-junction rectifiers in switching performance?
The HS2KH uses a fast recovery epitaxial structure with 75 ns reverse recovery time (trr), significantly outperforming standard PN rectifiers (typically >500 ns). This enables reduced switching losses, lower EMI, and higher usable frequency in DC/DC converters. Unlike general-purpose rectifiers, the HS2KH's controlled carrier lifetime and optimized doping profile deliver consistent trr across temperature-critical for stable operation in automotive HS2KH deployments.
HS2KH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2KH FAQ
1.How can I place an order for HS2KH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2KH 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 HS2KH reliable?
The price and inventory of HS2KH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2KH is usually 5 days.
3.What payment methods are accepted for HS2KH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2KH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2KH?
HS2KH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2KH 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 HS2KH?
For technical support, including HS2KH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2KH requirements.
6.How does Aetrix verify that HS2KH is sourced from the original manufacturer or authorized distributors?
All HS2KH 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 HS2KH meets industry standards.
7.What is the process for return or replacement of HS2KH?
All HS2KH units undergo pre-shipment inspection (PSI). If there is an issue with HS2KH, 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 HS2KH part is unused and in its original packaging.
Return procedure for HS2KH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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