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Taiwan Semiconductor Corporation HS3KB-K
- Part No.:
- HS3KB-K
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
HS3KB-K.pdf
- Description:
- 75NS, 3A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:5,899
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Product details
Overview
HS3KB-K from Taiwan Semiconductor is a high-efficiency surface-mount silicon rectifier diode rated for 800 V repetitive peak reverse voltage (VRRM), 3 A average forward current (IF), and 80 A non-repetitive surge current (IFSM), designed for freewheeling and switching-mode power conversion in industrial DC-DC converters.
For engineers reviewing the HS3KB-K datasheet, HS3KB-K pinout, HS3KB-K application, or HS3KB-K equivalent, key selection criteria include its DO-214AA (SMB) package thermal performance (RθJL = 20 °C/W), low 1.34 V forward voltage at 3 A/25°C, and 75 ns reverse recovery time-critical for high-frequency SMPS efficiency and thermal management.
Technical Context
The HS3KB-K is a single-die, glass-passivated, planar junction silicon rectifier optimized for fast recovery and low leakage in medium-voltage switching applications. Its 800 V VRRM, 75 ns trr, and 21 pF junction capacitance at 1 MHz/4 V support operation up to several hundred kHz in flyback and forward converters.
Thermal design is enabled by its DO-214AA (SMB) package with RθJA = 78 °C/W on a 10 mm × 10 mm Cu pad, RθJC = 26 °C/W, and RθJL = 20 °C/W-making it suitable for compact, convection-cooled power stages where lead-to-board heat transfer dominates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input rectification in 400–600 V DC bus systems with 25% safety margin |
| IF | 3 A continuous - delivers stable output in 30–60 W SMPS designs without forced cooling |
| IFSM (8.3 ms) | 80 A - withstands inrush and transient overloads in offline switchers with minimal derating |
| VF @ 3 A, 25°C | 1.34 V typical - reduces conduction loss to ~4.0 W per device at full load |
| trr | 75 ns - limits switching loss and EMI in 100–500 kHz topologies |
| CJ @ 1 MHz, 4 V | 21 pF - minimizes capacitive coupling and dv/dt-induced turn-on in high-side configurations |
| RθJL | 20 °C/W - enables direct thermal path from junction to PCB copper via leads, critical for thermal reliability |
| IR @ 800 V, 125°C | 200 µA max - ensures low standby power loss in energy-sensitive applications |
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 | Forward current entry point | Connected to lower-potential side of circuit (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to output rail or filter capacitor positive; blocks 800 V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reverse leakage (<200 µA at 125°C) and humidity resistance (MSL Level 1) |
| Fast recovery (75 ns) | Reduces switching loss and improves efficiency in 200–500 kHz DC-DC converters vs. standard rectifiers |
| Low CJ (21 pF) | Minimizes capacitive feedthrough and false triggering in high dv/dt environments (e.g., synchronous rectifier gate drive zones) |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
| Automated placement compatible | DO-214AA footprint and lead geometry meet J-STD-002 solderability and J-STD-020 MSL Level 1 requirements |
Applications
| DC-DC Converter | Switching Inverter |
|---|---|
Use Scenario: Isolated 24 V to 5 V/3 A buck-derived converter in industrial PLC power supply. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or quasi-resonant topology. Use Value: 1.34 V VF at 3 A reduces conduction loss by ~15% versus 1N5822, improving full-load efficiency to >89%. | Use Scenario: Single-phase H-bridge inverter driving 120 V AC motor control with 400 V DC link. IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs to clamp inductive kickback. Use Value: 75 ns trr prevents cross-conduction during dead-time, reducing shoot-through risk and EMI generation. |
| AC-DC Adapter | LED Driver |
Use Scenario: 65 W universal-input (90–264 V AC) flyback adapter for office equipment. IC Role / Device Role / Timing Role: Primary-side snubber clamp diode and secondary-side output rectifier. Use Value: 800 V VRRM accommodates reflected transients up to 650 V, eliminating need for external TVS clamping. | Use Scenario: Constant-current LED driver for street lighting with 36 V string and 700 mA output. IC Role / Device Role / Timing Role: Secondary-side rectifier in isolated forward converter stage. Use Value: 21 pF CJ suppresses high-frequency noise coupling into analog current-sense circuitry, improving regulation stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | 600 V VRRM, 3 A IF, 50 ns trr, TO-277 package | Limited to ≤600 V systems; faster recovery but lower voltage rating | Select when 600 V rating suffices and sub-50 ns trr is prioritized over voltage margin |
| ES3J | 600 V VRRM, 3 A IF, 35 ns trr, DO-214AB (SMC) package | Lower voltage rating and larger SMC footprint; faster recovery but higher CJ (45 pF) | Prefer for ultra-fast recovery needs in ≤600 V designs where board space allows SMC |
Compared with STTH3L06S and ES3J, the HS3KB-K provides superior 800 V voltage headroom and SMB footprint compatibility while maintaining competitive 75 ns recovery-making it optimal for 400–600 V DC bus systems requiring robustness and layout scalability.
Availability
HS3KB-K is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and AC-DC adapters requiring stable component supply, consistent parametric performance, and long-term industrial lifecycle support.
Supply support for HS3KB-K 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 Taiwanese manufacturer specializing in discrete power semiconductors, including rectifiers, TVS diodes, and MOSFETs, with ISO/TS 16949 and ISO 14001 certification.
The HS3KB-K belongs to TSC's HS3x-K family of high-efficiency surface-mount rectifiers engineered for high-voltage, medium-current switching power supplies-emphasizing low VF, fast trr, and reliable thermal performance in automated assembly.
FAQ
What is the maximum junction temperature rating for HS3KB-K?
The HS3KB-K has a maximum junction temperature (TJ) rating of +150°C, with operational range from –55°C to +150°C. This rating enables reliable use in enclosed industrial enclosures and high-ambient environments when mounted on a 10 mm × 10 mm copper pad, leveraging its RθJA = 78 °C/W and RθJL = 20 °C/W thermal metrics. Derating curves in the datasheet confirm 3 A IF capability down to 100°C ambient.
Does HS3KB-K support automated pick-and-place assembly?
Yes, HS3KB-K supports automated placement per J-STD-002 solderability standards, with matte tin-plated leads and DO-214AA (SMB) package geometry optimized for high-yield SMT processes. Its moisture sensitivity level is J-STD-020 Level 1, meaning it can be stored indefinitely at ≤30°C/85% RH without baking prior to reflow-reducing line stoppages and handling overhead in volume production.
What is the forward voltage of HS3KB-K at 3 A and 125°C?
The forward voltage of HS3KB-K is 1.11 V typical and 1.47 V maximum at 3 A and 125°C. This elevated VF reflects reduced semiconductor resistivity at high temperature but remains within design margins for 800 V-class rectifiers. The 1.11 V typical value directly informs thermal modeling, enabling accurate calculation of conduction loss (Pcond ≈ IF × VF) under worst-case operating conditions.
Is HS3KB-K halogen-free and RoHS compliant?
Yes, HS3KB-K is fully RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants (BFRs), chlorinated flame retardants (CFRs), or antimony trioxide, and all plating and substrate materials meet strict environmental compliance requirements-ensuring suitability for green electronics manufacturing and export to regulated markets.
How does the reverse recovery time of HS3KB-K compare to HS3JB-K and HS3MB-K?
The HS3KB-K shares identical reverse recovery time (trr) of 75 ns with HS3JB-K and HS3MB-K, as confirmed in the Electrical Specifications table. All three variants (600 V, 800 V, and 1000 V) use the same die process and junction structure optimized for fast recovery, distinguishing them from the slower HS3DB-K (200 V) and HS3GB-K (400 V) variants, which specify 50 ns trr due to different doping profiles.
HS3KB-K 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):
- 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:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 21pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS3KB-K FAQ
1.How can I place an order for HS3KB-K through Aetrix?
Please submit a Request for Quotation (RFQ) for HS3KB-K 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 HS3KB-K reliable?
The price and inventory of HS3KB-K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS3KB-K is usually 5 days.
3.What payment methods are accepted for HS3KB-K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS3KB-K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS3KB-K?
HS3KB-K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS3KB-K 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 HS3KB-K?
For technical support, including HS3KB-K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS3KB-K requirements.
6.How does Aetrix verify that HS3KB-K is sourced from the original manufacturer or authorized distributors?
All HS3KB-K 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 HS3KB-K meets industry standards.
7.What is the process for return or replacement of HS3KB-K?
All HS3KB-K units undergo pre-shipment inspection (PSI). If there is an issue with HS3KB-K, 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 HS3KB-K part is unused and in its original packaging.
Return procedure for HS3KB-K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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