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Taiwan Semiconductor Corporation HS3FB R5G
- Part No.:
- HS3FB R5G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
HS3FB R5G.pdf
- Description:
- DIODE GEN PURP 300V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,164
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Product details
Overview
HS3FB R5G from Taiwan Semiconductor is a 3A, 300V repetitive peak reverse voltage surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring 1.0V max forward voltage at 3A and 50ns max reverse recovery time, used in high-efficiency SMPS secondary-side rectification.
For engineers reviewing the HS3FB R5G datasheet, HS3FB R5G pinout, HS3FB R5G application, or HS3FB R5G equivalent, key selection criteria include VRRM=300V, IF=3A, VF≤1.0V @3A, trr≤50ns, and DO-214AA thermal performance (RθJA=60°C/W).
Technical Context
This device is a single-die, glass-passivated, fast-recovery silicon rectifier optimized for high-frequency switching applications. Its low forward voltage drop and fast reverse recovery minimize conduction and switching losses in DC-DC converters and offline SMPS outputs.
The DO-214AA (SMB) package supports automated placement and provides 60°C/W junction-to-ambient thermal resistance. Moisture sensitivity level is J-STD-020 Level 1, and terminals are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown |
| IF | 3 A - Continuous average forward current rating at TA=25°C with adequate heatsinking |
| VF | ≤1.0 V @ IF=3A, TJ=25°C - Low conduction loss enabling high efficiency in 12–24V output rails |
| trr | ≤50 ns - Fast recovery reduces switching loss and EMI in 100–500 kHz SMPS designs |
| RθJA | 60 °C/W - Thermal resistance enables ~2.5W power dissipation at 75°C ambient without forced air |
| IFSM | 100 A @ 8.3ms - Surge capability withstands inrush and transient overloads in AC/DC adapters |
| TJ max | +150 °C - Extended junction temperature range supports operation in enclosed industrial enclosures |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode-indicating band; two-terminal configuration (anode and cathode); 0.093g mass; UL 94V-0 molding compound; matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or ground return) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output rail; sustains 300V reverse bias during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | ≤50 ns - Enables stable operation up to 500 kHz switching frequency without excessive ringing |
| Glass passivated junction | Enhanced reliability and leakage control - IR ≤10 μA @ VR=300V, TJ=25°C |
| Low profile SMB package | Max height 2.62 mm - Fits low-clearance layouts in slim adapters and monitor power boards |
| J-STD-020 Level 1 MSL | No bake required before reflow - Compatible with standard SMT assembly lines without moisture preconditioning |
| Halogen-free construction | Complies with IEC 61249-2-21 - Meets environmental requirements for RoHS-compliant consumer electronics |
Applications
| AC/DC Adapters | Flat Panel Monitor Power Supplies |
|---|---|
Use Scenario: Secondary-side rectification in 12–19V, 30–65W flyback adapters for laptops and peripherals. IC Role / Device Role / Timing Role: Unidirectional current switch converting transformer AC output to regulated DC bus. Use Value: 1.0V VF and 50ns trr reduce power loss by >15% vs. standard recovery diodes at 200 kHz. | Use Scenario: Output rectification in multi-rail (5V/12V/24V) monitor SMPS with tight thermal constraints. IC Role / Device Role / Timing Role: High-efficiency freewheeling path during MOSFET off-time in synchronous or quasi-resonant topologies. Use Value: 60°C/W RθJA allows direct PCB copper pour cooling-no heatsink needed for ≤3A continuous load. |
| TV Power Boards | Industrial DC-DC Converters |
Use Scenario: Main 12V/24V output rectification in LED-backlit TV standby and main power stages. IC Role / Device Role / Timing Role: Fast-recovery rectifier handling pulsed loads from backlight drivers and logic rails. Use Value: 100A IFSM withstands surge currents from cold-start capacitor charging without degradation. | Use Scenario: Isolated auxiliary supply rectification in programmable logic controllers and motor drive gate drivers. IC Role / Device Role / Timing Role: Reliable, low-leakage DC path in harsh environments with wide ambient temperature swings. Use Value: -55°C to +150°C operating range ensures functionality in unventilated control cabinets up to 70°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR330 | VRRM=300V, VF=1.15V @3A, trr=50ns, same DO-214AA package | Slightly higher VF increases conduction loss by ~0.45W at full load | Preferred where second-source qualification is required and 0.15V VF penalty is acceptable |
| Vishay VS-3EY30 | VRRM=300V, VF=1.05V @3A, trr=35ns, DO-214AA, higher IR (50μA @25°C) | Faster recovery but higher leakage may affect light-load efficiency in standby mode | Selected when minimizing switching loss dominates over standby current budget |
Compared with MUR330 and VS-3EY30, HS3FB R5G offers the lowest VF (≤1.0V) among 300V/3A SMB rectifiers while maintaining 50ns trr and J-STD-020 Level 1 MSL-ideal for thermally constrained, high-volume adapter designs.
Availability
HS3FB R5G is available at Aetrix Electronics and suitable for AC/DC adapters, flat panel monitor power supplies, and industrial DC-DC converters requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for HS3FB R5G 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 global power and protection markets since 1979.
The HS3x series is designed specifically for high-efficiency, cost-sensitive surface-mount rectification in consumer and industrial power supplies-emphasizing low VF, fast trr, and robust thermal performance in SMB packaging.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of HS3FB R5G?
The HS3FB R5G has a VRRM rating of 300 V, meaning it reliably blocks up to 300 volts of reverse-biased voltage in repetitive duty cycles without breakdown. This value is confirmed in the Absolute Maximum Ratings table on page 2 of the Taiwan Semiconductor HS3AB–HS3MB datasheet (Version L2102), and aligns with the "FB" suffix designation in the HS3x family nomenclature.
What is the forward voltage drop (VF) specification for HS3FB R5G at rated current?
HS3FB R5G exhibits a maximum forward voltage drop of 1.0 V at IF = 3 A and TJ = 25°C, as specified in the Electrical Specifications table under "Forward voltage(1)" for the HS3FB variant. This low VF directly contributes to reduced conduction losses in high-current output stages of SMPS designs.
Is HS3FB R5G compatible with lead-free reflow soldering processes?
Yes, HS3FB R5G is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its J-STD-020 moisture sensitivity level is Level 1-meaning no baking or special handling is required prior to standard Pb-free reflow profiles (peak temperature ≤260°C).
What package type does HS3FB R5G use, and what are its key mechanical attributes?
HS3FB R5G uses the DO-214AA (SMB) surface-mount package. Key mechanical attributes include UL 94V-0 flammability-rated molding compound, cathode polarity indicated by a visible band, 0.093 g typical weight, and compliance with JESD201 Class 2 whisker resistance-ensuring long-term solder joint integrity in field-deployed equipment.
How does the reverse recovery time (trr) of HS3FB R5G impact switching power supply design?
The HS3FB R5G has a maximum trr of 50 ns, which minimizes switching loss and high-frequency ringing during turn-off transitions. In practice, this allows stable operation in 200–500 kHz flyback and forward converters without requiring snubbers or derating, directly improving efficiency and EMI performance compared to standard recovery diodes with trr >200 ns.
HS3FB R5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 300 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 300 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS3FB R5G FAQ
1.How can I place an order for HS3FB R5G through Aetrix?
Please submit a Request for Quotation (RFQ) for HS3FB R5G 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 HS3FB R5G reliable?
The price and inventory of HS3FB R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS3FB R5G is usually 5 days.
3.What payment methods are accepted for HS3FB R5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS3FB R5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS3FB R5G?
HS3FB R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS3FB R5G 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 HS3FB R5G?
For technical support, including HS3FB R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS3FB R5G requirements.
6.How does Aetrix verify that HS3FB R5G is sourced from the original manufacturer or authorized distributors?
All HS3FB R5G 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 HS3FB R5G meets industry standards.
7.What is the process for return or replacement of HS3FB R5G?
All HS3FB R5G units undergo pre-shipment inspection (PSI). If there is an issue with HS3FB R5G, 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 HS3FB R5G part is unused and in its original packaging.
Return procedure for HS3FB R5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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