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Taiwan Semiconductor Corporation HS3A R7G
- Part No.:
- HS3A R7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
HS3A R7G.pdf
- Description:
- DIODE GEN PURP 50V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:451
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Product details
Overview
HS3A R7G from Taiwan Semiconductor is a 3 A, 50 V high-efficiency surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 1.0 V max forward voltage at 3 A and 150 A peak surge current capability; used for high-frequency rectification in switching-mode power supplies.
For engineers reviewing the HS3A R7G datasheet, HS3A R7G pinout, HS3A R7G application, or HS3A R7G equivalent, key selection criteria include repetitive peak reverse voltage (50 V), thermal resistance (60 °C/W), junction capacitance (80 pF), reverse recovery time (50 ns), and moisture sensitivity level (J-STD-020 Level 1).
Technical Context
The HS3A R7G is a single-die, glass-passivated, planar-junction silicon rectifier optimized for fast switching and low conduction loss. Its 50 V VRRM rating and 50 ns reverse recovery time support operation in high-frequency DC/DC converters and freewheeling paths where rapid turn-off minimizes switching losses.
Thermally, it delivers 3 A average forward current with junction-to-ambient thermal resistance of 60 °C/W under standard PCB mounting conditions. The DO-214AB (SMC) package enables automated placement and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in rectifier and clamp circuits. |
| IF | 3 A - Continuous average forward current at TA = 25°C; determines steady-state power handling in SMPS output stages. |
| IFSM | 150 A - Non-repetitive peak surge current (8.3 ms half-sine); supports inrush and transient overload tolerance. |
| VF (max) | 1.0 V @ 3 A, 25°C - Forward voltage drop directly impacts conduction loss and thermal rise in high-current paths. |
| trr | 50 ns - Reverse recovery time measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; critical for minimizing switching loss in >100 kHz topologies. |
| CJ | 80 pF @ 1 MHz, 4 V - Junction capacitance affects high-frequency noise coupling and snubber design in flyback and LLC converters. |
| RθJA | 60 °C/W - Thermal resistance from junction to ambient; used to calculate temperature rise on standard 1-in² copper pad. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, molded plastic case with matte tin-plated leads; polarity indicated by cathode band; weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node return path). |
| Cathode | Forward current exit point | Connected to output rail or filter capacitor positive; marked by visible band; carries full load current to load or bulk cap. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term reliability and leakage control under humidity and thermal cycling stress. |
| Low-profile SMC package | Reduces board height and improves airflow in dense power modules; compatible with standard pick-and-place equipment. |
| J-STD-020 Level 1 moisture sensitivity | Allows unlimited floor life before reflow; eliminates bake requirement and simplifies manufacturing logistics. |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and global environmental directives; suitable for export and regulated industrial end equipment. |
Applications
| Computer SMPS Output Rectification | Telecom DC/DC Converter Freewheeling |
|---|---|
Use Scenario: Rectifying 12 V or 5 V output from high-frequency forward or flyback converter in ATX or OCP-compliant server PSUs. IC Role / Device Role / Timing Role: Primary output rectifier conducting continuous 3 A load current with minimal VF-related loss. Use Value: 1.0 V VF reduces conduction loss by ~15% vs. legacy 1.15 V diodes, lowering thermal stress on heatsink and PCB. | Use Scenario: Freewheeling path in isolated 48 V–12 V telecom buck-derived converters operating at 300–500 kHz. IC Role / Device Role / Timing Role: Provides low-loss, fast-recovery path during high-side switch off-time to maintain current continuity. Use Value: 50 ns trr limits reverse recovery charge (Qrr) and associated switching loss, improving efficiency above 250 kHz. |
| Industrial Motor Drive Snubber Clamp | LED Driver Secondary Rectification |
Use Scenario: Clamping inductive kickback from IGBT gate drivers or small BLDC motor phase windings in compact inverters. IC Role / Device Role / Timing Role: Fast-turn-on clamp diode absorbing energy during switching transitions to protect gate drivers. Use Value: 150 A IFSM withstands repetitive surge events without degradation; 60 °C/W RθJA ensures stable junction temperature under burst loads. | Use Scenario: Secondary-side rectification in constant-current LED drivers for street lighting or commercial fixtures. IC Role / Device Role / Timing Role: Converts high-frequency AC from transformer secondary into DC for LED string biasing. Use Value: 80 pF CJ minimizes capacitive coupling of switching noise into sensitive current-sense circuitry, improving regulation stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | 600 V VRRM, 3 A IF, 1.7 V VF (max), 65 ns trr, TO-277 package | Higher voltage rating but higher VF and slower recovery; suited for 400 V bus clamping, not 50 V output rectification | Select only if system requires >100 V reverse blocking; HS3A R7G offers lower loss at 50 V. |
| MBR360 | 60 V VRRM, 3 A IF, 0.75 V VF (typ), Schottky architecture, no reverse recovery | Lower VF but limited to ≤100°C junction; unsuitable for 125°C ambient industrial environments | Prefer MBR360 only in low-temperature consumer applications; HS3A R7G supports full -55°C to +150°C range. |
Compared with STTH3L06S and MBR360, the HS3A R7G provides optimal balance of low VF, fast trr, wide temperature range, and cost-effective SMC packaging for 50 V-class high-frequency rectification-without sacrificing ruggedness or manufacturability.
Availability
HS3A R7G is available at Aetrix Electronics and suitable for computer power supplies, telecom DC/DC converters, industrial motor drives, and LED driver designs requiring stable component supply across production lifecycles.
Supply support for HS3A R7G 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, MOSFETs, and bipolar transistors.
The HS3A R7G belongs to TSC's HS3x high-efficiency rectifier family, engineered specifically for high-frequency switching power conversion where low forward voltage, fast recovery, and robust thermal performance are essential.
FAQ
What is the maximum junction temperature rating for the HS3A R7G?
The HS3A R7G has a maximum junction temperature (TJMAX) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version K2102). This rating allows reliable operation in industrial and telecom environments where ambient temperatures exceed 85°C, provided thermal design maintains junction temperature below this limit. Derating curves confirm usable current capacity down to 0 A at 150°C ambient with standard PCB layout.
Does the HS3A R7G have a specified reverse recovery time, and how is it measured?
Yes, the HS3A R7G specifies a maximum reverse recovery time (trr) of 50 ns, measured under defined conditions: IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the electrical specifications table in the Taiwan Semiconductor HS3A–HS3M datasheet (K2102). This value reflects actual device behavior in high-frequency switching applications and is critical for estimating switching loss in SMPS designs.
Is the HS3A R7G RoHS and halogen-free compliant?
Yes, the HS3A R7G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet (K2102). The molding compound and plating meet environmental standards required for export to EU, China, and other regulated markets, with no brominated flame retardants or chlorine-based additives.
What is the moisture sensitivity level (MSL) of the HS3A R7G, and what does it mean for assembly?
The HS3A R7G has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions (<30°C / 60% RH) without baking prior to reflow soldering. This eliminates pre-bake steps, reduces process complexity, and avoids potential damage from moisture-induced popcorning during reflow-critical for high-yield automated assembly lines.
How does the forward voltage of the HS3A R7G compare to other members of the HS3x family?
The HS3A R7G has a maximum forward voltage (VF) of 1.0 V at 3 A and 25°C, which is the lowest among the HS3x series; higher-voltage variants like HS3G (400 V) and HS3M (1000 V) specify up to 1.7 V max. This reflects the trade-off between blocking voltage and conduction loss-HS3A R7G delivers optimal efficiency in 50 V applications where low VF is prioritized over high-voltage capability.
HS3A R7G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 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 @ 50 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS3A R7G FAQ
1.How can I place an order for HS3A R7G through Aetrix?
Please submit a Request for Quotation (RFQ) for HS3A R7G 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 HS3A R7G reliable?
The price and inventory of HS3A R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS3A R7G is usually 5 days.
3.What payment methods are accepted for HS3A R7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS3A R7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS3A R7G?
HS3A R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS3A R7G 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 HS3A R7G?
For technical support, including HS3A R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS3A R7G requirements.
6.How does Aetrix verify that HS3A R7G is sourced from the original manufacturer or authorized distributors?
All HS3A R7G 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 HS3A R7G meets industry standards.
7.What is the process for return or replacement of HS3A R7G?
All HS3A R7G units undergo pre-shipment inspection (PSI). If there is an issue with HS3A R7G, 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 HS3A R7G part is unused and in its original packaging.
Return procedure for HS3A R7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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