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Taiwan Semiconductor Corporation HS3KBH
- Part No.:
- HS3KBH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
HS3KBH.pdf
- Description:
- 75NS, 3A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:5,980
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Product details
Overview
HS3KBH from Taiwan Semiconductor is a 3A, 800V repetitive peak reverse voltage (VRRM) surface-mount Schottky rectifier in DO-214AA (SMB) package, featuring 1.7V max forward voltage at 3A/25°C, 75ns reverse recovery time, 50pF junction capacitance at 4V, and AEC-Q101 qualification for automotive power conversion.
For engineers reviewing the HS3KBH datasheet, HS3KBH pinout, HS3KBH application, or HS3KBH equivalent, key selection factors include its 800V VRRM, 100A IFSM, -55°C to +150°C operating temperature range, moisture sensitivity level 1 compliance, and suitability for high-efficiency DC-DC converters and automotive freewheeling circuits.
Technical Context
The HS3KBH is a single-die, glass-passivated silicon planar junction rectifier optimized for fast switching and low conduction loss. Its 800V VRRM rating and 75ns trr support operation in high-voltage snubber and flyback topologies where rapid turn-off and low stored charge are critical.
Thermally, it delivers 60°C/W junction-to-ambient resistance in standard SMB layout, enabling 3A continuous forward current with minimal heatsinking. The matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports DC-DC stages with up to 800V transient reverse stress without breakdown |
| IF | 3 A - rated average forward current under specified thermal conditions |
| IFSM | 100 A - withstands 8.3ms half-sine surge, enabling robust inrush and fault handling |
| VF @ 3A, 25°C | ≤1.7 V - reduces conduction loss in high-current paths, improving system efficiency |
| trr | ≤75 ns - minimizes switching loss and EMI in high-frequency (>100kHz) converters |
| CJ @ 4V | 50 pF - limits capacitive coupling and dv/dt-induced turn-on in high-speed switching |
| TJ max | +150 °C - enables operation in under-hood automotive environments without derating |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile plastic case with cathode band polarity marking; weight ≈ 0.093g; UL 94V-0 compliant molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of load or switch node in freewheeling path |
| Cathode | Current exit point during forward conduction; marked by band | Connected to higher-potential rail (e.g., input bus or switch drain) to enable unidirectional current flow |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test conditions |
| Glass passivated chip junction | Enhances long-term stability and moisture resistance in harsh environments |
| Moisture sensitivity level 1 | Eliminates need for dry-pack or baking prior to reflow, simplifying SMT line integration |
| RoHS and halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive for eco-conscious manufacturing |
| Low profile SMB package | Enables compact PCB layouts and compatibility with automated pick-and-place equipment |
Applications
| Automotive DC-DC Converters | LED Headlamp Drivers |
|---|---|
Use Scenario: High-efficiency 12V–48V bidirectional DC-DC conversion in 48V mild-hybrid systems. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck-boost topology, conducting during low-side switch off-time. Use Value: 800V VRRM and 75ns trr prevent voltage overshoot and reduce switching losses at 200–500kHz switching frequencies. | Use Scenario: Constant-current LED driver for adaptive front lighting with PWM dimming. IC Role / Device Role / Timing Role: Snubber diode across MOSFET switch to clamp inductive kickback during PWM turn-off. Use Value: 100A IFSM handles transient energy spikes; 1.7V VF minimizes heat generation in thermally constrained headlamp housings. |
| Industrial Power Supplies | On-Board Charger (OBC) Auxiliary Rails |
Use Scenario: Output rectification in isolated flyback converters powering PLC I/O modules. IC Role / Device Role / Timing Role: Secondary-side output rectifier delivering regulated 5V/3.3V bias rails. Use Value: 60°C/W RθJA allows full 3A load without heatsink in enclosed enclosures up to 70°C ambient. | Use Scenario: Auxiliary 12V supply generation from high-voltage battery in EV on-board chargers. IC Role / Device Role / Timing Role: Input-stage rectifier feeding PFC pre-regulator from AC input or HV DC link. Use Value: AEC-Q101 qualification ensures lifetime reliability under vibration, thermal shock, and humidity exposure typical of OBC mounting locations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EJH02-M3/5BT | Same DO-214AA package, 800V VRRM, but 1.35V VF @ 3A and 50ns trr; not AEC-Q101 qualified | Better switching speed and lower conduction loss, but unsuitable for automotive safety-critical use | Select for industrial SMPS where AEC-Q101 is not required and faster recovery is prioritized |
| ON Semiconductor MUR380E | DO-201AD package (larger), 800V VRRM, 1.85V VF @ 3A, 75ns trr, AEC-Q101 qualified | Requires PCB footprint redesign; higher VF increases conduction loss in space-constrained designs | Select when legacy through-hole compatibility or higher surge margin (125A IFSM) is needed over SMB footprint |
Compared with VS-3EJH02-M3/5BT and MUR380E, the HS3KBH uniquely balances AEC-Q101 compliance, SMB footprint, and 1.7V/75ns performance-making it optimal for new automotive electronics where board area, qualification, and thermal efficiency are jointly constrained.
Availability
HS3KBH is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED headlamp drivers, and industrial flyback power supplies requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for HS3KBH 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, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The HS3KBH belongs to TSC's HS3x series of AEC-Q101-qualified surface-mount rectifiers designed specifically for high-reliability automotive power conversion, including 48V systems, LED lighting, and on-board charging auxiliary supplies.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HS3KBH?
The HS3KBH 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 A2102). This rating defines the highest reverse voltage the device can block continuously without breakdown under specified thermal conditions, making it suitable for 400–600V DC-link applications with safety margin.
Is HS3KBH qualified for automotive applications?
Yes, HS3KBH is explicitly AEC-Q101 qualified per the manufacturer's documentation. It undergoes stress testing including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge per AEC-Q101 standards, confirming its suitability for under-hood and cabin automotive systems such as DC-DC converters and LED drivers.
What is the forward voltage drop of HS3KBH at rated current?
The HS3KBH exhibits a maximum forward voltage (VF) of 1.7 V at 3 A forward current and 25°C junction temperature, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and reflects conduction loss under typical switching converter operating conditions.
Does HS3KBH have a defined reverse recovery time (trr)?
Yes, HS3KBH has a maximum reverse recovery time (trr) of 75 ns, tested at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is critical for minimizing switching loss and EMI in high-frequency power converters and is validated across the HS3JBH–HS3MBH family in the official datasheet.
What package type does HS3KBH use, and is it compatible with standard SMT processes?
HS3KBH uses the DO-214AA (SMB) surface-mount package with matte tin-plated leads that comply with J-STD-002 solderability requirements. Its moisture sensitivity level is rated Class 1 per J-STD-020, meaning it can be placed directly into reflow without baking-ensuring seamless integration into high-volume automated assembly lines.
HS3KBH 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:
- 10 µA @ 800 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS3KBH FAQ
1.How can I place an order for HS3KBH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS3KBH 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 HS3KBH reliable?
The price and inventory of HS3KBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS3KBH is usually 5 days.
3.What payment methods are accepted for HS3KBH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS3KBH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS3KBH?
HS3KBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS3KBH 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 HS3KBH?
For technical support, including HS3KBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS3KBH requirements.
6.How does Aetrix verify that HS3KBH is sourced from the original manufacturer or authorized distributors?
All HS3KBH 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 HS3KBH meets industry standards.
7.What is the process for return or replacement of HS3KBH?
All HS3KBH units undergo pre-shipment inspection (PSI). If there is an issue with HS3KBH, 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 HS3KBH part is unused and in its original packaging.
Return procedure for HS3KBH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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