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Taiwan Semiconductor Corporation HS3KH
- Part No.:
- HS3KH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
HS3KH.pdf
- Description:
- 75NS, 3A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
HS3KH from Taiwan Semiconductor is a 3A, 800V repetitive peak reverse voltage (VRRM) surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 1.7V max forward voltage at 3A, 75ns reverse recovery time, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in high-efficiency DC-DC converters and car lighting systems.
For engineers reviewing the HS3KH datasheet, HS3KH pinout, HS3KH application, or HS3KH equivalent, key selection criteria include its 800V VRRM, 150A IFSM, 60°C/W RθJA, JESD201 Class 2 whisker resistance, and moisture sensitivity level 1 compliance - all critical for under-hood automotive power designs requiring thermal robustness and automated assembly compatibility.
Technical Context
This single-die standard recovery rectifier uses glass-passivated junction technology to achieve stable reverse leakage (<10µA at 25°C, <250µA at 125°C) and low-profile mechanical construction suitable for space-constrained automotive PCBs. Its DO-214AB (SMC) package supports reflow soldering per J-STD-002 with matte tin-plated leads.
The device operates across -55°C to +150°C junction temperature range and delivers 3A average forward current with derating above 75°C ambient. Thermal performance is defined by 60°C/W junction-to-ambient resistance, enabling direct thermal modeling in compact power stages without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum non-repetitive reverse blocking voltage; defines safe operating limit in 400–600V DC bus applications. |
| IF | 3 A - Continuous average forward current at TA = 75°C; usable up to 3A with proper heatsinking or board copper area. |
| VF (max) | 1.7 V @ 3A, 25°C - Low conduction loss enables >92% efficiency in 12V–48V buck-derived converters. |
| trr (max) | 75 ns - Enables use in medium-frequency switching (≤100 kHz) without excessive switching loss or EMI. |
| IFSM | 150 A - Withstands 8.3ms half-sine surge; protects against inductive kickback in motor drivers and solenoid controls. |
| CJ | 50 pF @ 1MHz, 4V - Low junction capacitance minimizes capacitive coupling noise in high-dv/dt snubber circuits. |
| RθJA | 60 °C/W - Allows thermal design with minimal copper area; ~1.5 cm² 2oz external copper reduces θJA to ~45°C/W. |
Pinout & Package
DO-214AB (SMC) package: molded epoxy case meeting UL 94V-0, cathode indicated by band, matte tin-plated leads, 0.210g weight, polarity-marked, JESD201 Class 2 whisker compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead 1) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires thermal relief pad for soldering reliability. |
| Cathode (lead 2, banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or ground return; cathode band must align with PCB silkscreen for automated optical inspection (AOI). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics including engine control modules and body electronics under stress conditions. |
| Glass passivated junction | Prevents moisture ingress and metallization corrosion, ensuring long-term reliability in humid under-hood environments. |
| Moisture sensitivity level 1 | Zero bake requirement before SMT reflow; compatible with standard J-STD-020 handling and storage protocols. |
| Low profile DO-214AB (SMC) | Height ≤2.6mm enables integration into low-clearance assemblies such as LED headlamp driver modules. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated automotive supply chains. |
Applications
| Automotive DC-DC Converters | LED Headlamp Drivers |
|---|---|
Use Scenario: Step-down conversion from 12V/24V battery to 5V/3.3V for microcontrollers and sensors in ADAS ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck topology; handles inductor current续流 during high-side switch off-time. Use Value: 1.7V VF limits conduction loss to <5.1W at 3A, reducing thermal load on small PCB areas near sensitive analog components. | Use Scenario: Constant-current regulation for high-brightness LED arrays in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: Snubber diode across MOSFET switches to clamp inductive voltage spikes during PWM dimming transitions. Use Value: 800V VRRM and 75ns trr suppress transients up to 600V with minimal ringing, preserving LED driver IC lifetime. |
| Industrial Motor Control | Power Supply Input Rectification |
Use Scenario: Flyback protection in 24V solenoid valve drivers used in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling path for inductive load energy dissipation when drive transistor turns off. Use Value: 150A IFSM withstands repeated 100A+ turn-off surges without degradation, supporting >1 million actuation cycles. | Use Scenario: Secondary-side rectification in isolated 48V telecom power supplies feeding server backplanes. IC Role / Device Role / Timing Role: Output rectifier in forward or flyback converter delivering 3A continuous load current. Use Value: 60°C/W RθJA allows operation at full load with only 2 cm² of 2oz copper, eliminating need for discrete heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EYH08-M3 | Same DO-214AB package, 800V VRRM, but 1.35V VF max @ 3A and 50ns trr; higher cost, tighter tolerance. | Better suited for higher-frequency (>200 kHz) or lower-loss requirements where 0.35V VF reduction justifies premium pricing. | Select if system efficiency target exceeds 94% at 3A or if EMI filtering budget is constrained by faster recovery. |
| ON Semiconductor MUR380E | Ultrafast recovery (35ns), same 800V rating, but TO-220AC package - larger footprint, higher RθJA (40°C/W case-to-ambient only). | Requires heatsink mounting and manual assembly; not suitable for fully automated SMT lines or space-limited automotive modules. | Choose only when existing thermal design accommodates TO-220 and layout cannot support SMC footprint. |
Compared with VS-3EYH08-M3 and MUR380E, HS3KH offers optimal balance of AEC-Q101 compliance, SMT readiness, and cost-effective 800V capability - making it preferred for automotive and industrial DC-DC where DO-214AB footprint, moisture level 1, and 75ns recovery meet system-level timing and reliability targets.
Availability
HS3KH is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED headlamp drivers, and industrial motor control systems requiring stable component supply with AEC-Q101 qualification and SMT-compatible packaging.
Supply support for HS3KH 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 HS3xH series was designed specifically for high-reliability automotive and industrial surface-mount rectification, emphasizing AEC-Q101 compliance, glass passivation, and DO-214AB mechanical robustness in harsh thermal and humidity environments.
FAQ
What is the maximum junction temperature rating for HS3KH?
The HS3KH has a maximum junction temperature (TJ) rating of +150°C, with operational range from -55°C to +150°C. This rating is validated per AEC-Q101 stress testing and supports continuous operation in under-hood automotive environments where ambient temperatures reach 125°C, provided thermal design maintains junction temperature below 150°C using the specified 60°C/W RθJA.
Is HS3KH suitable for use in synchronous rectifier topologies?
No, HS3KH is a standard recovery rectifier diode, not a synchronous rectifier. It lacks gate control and is intended for asynchronous freewheeling or snubber roles. For synchronous rectification, discrete MOSFETs or dedicated SR controllers must be used. HS3KH's 75ns trr and 1.7V VF make it appropriate for medium-frequency asynchronous buck or flyback outputs, but not for gate-driven synchronous replacement.
Does HS3KH have a halogen-free designation per IEC 61249-2-21?
Yes, HS3KH is halogen-free per IEC 61249-2-21 and RoHS compliant. The molding compound and internal materials contain no brominated flame retardants or chlorine-based additives, satisfying environmental requirements for automotive Tier-1 suppliers and industrial equipment exported to EU markets.
What is the marking code printed on the HS3KH device body?
The HS3KH device is marked with "HS3K" on its body, consistent with the ordering code convention defined in the datasheet. This marking appears adjacent to the cathode band and is laser-etched for readability after reflow soldering, supporting automated optical inspection (AOI) in high-volume SMT lines.
Can HS3KH replace HS3JH or HS3MH in an existing design?
HS3KH (800V) can replace HS3JH (600V) if the circuit's peak reverse voltage remains ≤800V, but cannot safely replace HS3MH (1000V) where 1000V blocking is required. Forward characteristics (VF, trr, CJ) are identical across HS3JH/HS3KH/HS3MH, so thermal and switching behavior remain consistent - only VRRM differs within this family.
HS3KH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 800 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS3KH FAQ
1.How can I place an order for HS3KH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS3KH 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 HS3KH reliable?
The price and inventory of HS3KH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS3KH is usually 5 days.
3.What payment methods are accepted for HS3KH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS3KH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS3KH?
HS3KH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS3KH 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 HS3KH?
For technical support, including HS3KH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS3KH requirements.
6.How does Aetrix verify that HS3KH is sourced from the original manufacturer or authorized distributors?
All HS3KH 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 HS3KH meets industry standards.
7.What is the process for return or replacement of HS3KH?
All HS3KH units undergo pre-shipment inspection (PSI). If there is an issue with HS3KH, 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 HS3KH part is unused and in its original packaging.
Return procedure for HS3KH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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