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Taiwan Semiconductor Corporation HS1GF-T
- Part No.:
- HS1GF-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
HS1GF-T.pdf
- Description:
- 50NS, 1A, 400V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:7,495
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Product details
Overview
HS1GF-T from Taiwan Semiconductor is a 1 A, 400 V repetitive peak reverse voltage (VRRM) surface-mount fast recovery rectifier in SMAF package, featuring 50 ns reverse recovery time (trr), 0.95 V typical forward voltage at 1.0 A/25°C, and 11 pF junction capacitance - optimized for high-frequency switching mode power supplies.
For engineers reviewing the HS1GF-T datasheet, HS1GF-T pinout, HS1GF-T application, or HS1GF-T equivalent, key selection criteria include its 400 V VRRM, fast 50 ns trr, low 0.95 V VF at rated current, thermal resistance of 15 °C/W (junction-to-lead), and compatibility with automated SMT placement on standard PCB pads.
Technical Context
The HS1GF-T is a single-die, glass-passivated silicon PN junction rectifier designed for high-efficiency AC/DC and DC/DC conversion. Its 50 ns reverse recovery time enables operation in 100–500 kHz switching topologies without excessive switching loss.
Thermal performance is defined by RθJL = 15 °C/W and RθJA = 89 °C/W on a 5 mm × 5 mm Cu pad, supporting continuous 1 A conduction up to TJ = 150 °C. Reverse leakage remains ≤5 µA at 25°C and ≤125 µA at 125°C under rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum non-repetitive reverse blocking capability, suitable for 280 VRMS input lines |
| IF | 1 A continuous average forward current - supports compact PSU designs with minimal heatsinking |
| trr | 50 ns - enables efficient operation in high-frequency flyback and forward converters |
| VF @ 1A/25°C | 0.95 V typical - reduces conduction loss vs. standard rectifiers (e.g., 1N4007: ~1.1 V) |
| CJ | 11 pF @ 1 MHz, 4 V - minimizes capacitive switching noise in EMI-sensitive applications |
| RθJL | 15 °C/W - allows direct thermal path to PCB copper, simplifying thermal management |
| IR @ 125°C | ≤125 µA - ensures stable reverse blocking in elevated ambient temperature environments |
Pinout & Package
Package: SMAF (Surface Mount Axial Flat) - molded plastic case meeting UL 94V-0, matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.035 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) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail; cathode band marks this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and moisture resistance per J-STD-020 Level 1 MSL |
| Fast 50 ns recovery | Reduces switching losses in 100–500 kHz SMPS, improving efficiency over standard rectifiers |
| Low 0.95 V VF @ 1A | Lowers I²R conduction loss, enabling smaller thermal pads and higher power density |
| 11 pF junction capacitance | Minimizes high-frequency displacement current and EMI generation during turn-off |
| SMAF package with JESD 201 Class 1 whisker resistance | Ensures robust solder joint integrity and compatibility with lead-free reflow profiles |
Applications
| DC–DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side rectification in isolated 48 V–12 V buck-derived DC–DC modules for telecom and server power. IC Role / Device Role / Timing Role: High-frequency unidirectional current steering with minimal reverse recovery loss. Use Value: 50 ns trr and 0.95 V VF reduce total losses by ~18% vs. 1N5819 in 300 kHz operation. | Use Scenario: Freewheeling path in half-bridge motor drive inverters for HVAC blowers and industrial fans. IC Role / Device Role / Timing Role: Clamp inductive kickback and sustain current continuity during dead-time intervals. Use Value: 400 V VRRM safely handles 300 VDC bus transients; 15 °C/W RθJL enables direct PCB heat spreading. |
| SMPS Output Rectification | Freewheeling Diode |
Use Scenario: Output rectification in 65–100 W adapter designs using QR flyback topology. IC Role / Device Role / Timing Role: Synchronous rectification alternative where control complexity is avoided. Use Value: 11 pF CJ limits capacitive ringing; 125 µA IR at 125°C maintains regulation stability under thermal stress. | Use Scenario: Inductive load snubbing in solenoid drivers and relay interface circuits. IC Role / Device Role / Timing Role: Provides low-loss return path for stored magnetic energy during turn-off. Use Value: 30 A IFSM withstands 8.3 ms surge events; cathode band ensures foolproof assembly orientation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L04S | Same 1 A / 400 V rating; 45 ns trr, 0.92 V VF @ 1A, DO-214AC package | DO-214AC has larger footprint and higher RθJA (110 °C/W); requires revised land pattern | Preferred where tighter trr is critical and board space permits larger package |
| MBR140SFT3G | Schottky architecture; 0.52 V VF @ 1A but limited to 40 V VRRM; no reverse recovery | Not usable above 40 V reverse bias; unsuitable for 400 V line-referenced circuits | Select only for low-voltage (<40 V) high-efficiency outputs where zero trr is mandatory |
Compared with STTH1L04S and MBR140SFT3G, the HS1GF-T offers optimal balance of 400 V blocking, 50 ns speed, and SMAF compactness - making it uniquely suited for space-constrained 200–400 V output rectification where Schottky voltage limits or through-hole alternatives are impractical.
Availability
HS1GF-T is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and freewheeling applications requiring stable component supply, consistent parametric performance across production lots, and full traceability.
Supply support for HS1GF-T 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, automotive, and industrial markets since 1979.
The HS1GF-T belongs to TSC's HS1x series of high-efficiency surface-mount rectifiers, engineered specifically for high-frequency switching power conversion where fast recovery, low forward drop, and reliable SMT manufacturability are essential.
FAQ
What is the maximum junction temperature rating for the HS1GF-T?
The HS1GF-T has a maximum junction temperature (TJ) rating of +150 °C, verified per absolute maximum ratings table. This allows continuous 1 A operation in ambient temperatures up to +105 °C when mounted on a 5 mm × 5 mm Cu pad, leveraging its 15 °C/W junction-to-lead thermal resistance. Derating curves in the HS1GF-T datasheet confirm safe operation across the full -55 °C to +150 °C range.
Does the HS1GF-T have a specified reverse recovery time, and how is it measured?
Yes, the HS1GF-T specifies a reverse recovery time (trr) of ≤50 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the electrical specifications table. This value is confirmed across production lots and applies directly to the HS1GF-T variant - distinct from the 75 ns trr of higher-voltage variants like HS1JF-T.
What does the "-T" suffix indicate in HS1GF-T?
The "-T" suffix in HS1GF-T denotes tape-and-reel packaging: 7,500 units per reel, compatible with standard SMT pick-and-place equipment. It confirms compliance with J-STD-002 for solderability and JESD 201 Class 1 for tin whisker resistance - critical for high-reliability automated assembly. The base part number HS1GF identifies the 400 V VRRM variant within the HS1x family.
Is the HS1GF-T RoHS and halogen-free compliant?
Yes, the HS1GF-T is RoHS compliant and halogen-free per IEC 61249-2-21. This is explicitly stated in the features section of the official Taiwan Semiconductor datasheet (Version B2103). The molding compound meets UL 94V-0, and terminals are matte tin plated - satisfying both environmental and reliability requirements for modern industrial and consumer electronics.
How does the forward voltage of HS1GF-T vary with temperature?
The HS1GF-T forward voltage decreases with rising junction temperature: at 1.0 A, VF is 0.95 V typical at 25°C and drops to 0.79 V typical at 125°C. This negative temperature coefficient is inherent to silicon PN junctions and is fully characterized in the datasheet's electrical specifications table - enabling accurate thermal modeling in high-power-density designs.
HS1GF-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.4 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 11pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMAF
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1GF-T FAQ
1.How can I place an order for HS1GF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1GF-T 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 HS1GF-T reliable?
The price and inventory of HS1GF-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1GF-T is usually 5 days.
3.What payment methods are accepted for HS1GF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1GF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1GF-T?
HS1GF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1GF-T 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 HS1GF-T?
For technical support, including HS1GF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1GF-T requirements.
6.How does Aetrix verify that HS1GF-T is sourced from the original manufacturer or authorized distributors?
All HS1GF-T 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 HS1GF-T meets industry standards.
7.What is the process for return or replacement of HS1GF-T?
All HS1GF-T units undergo pre-shipment inspection (PSI). If there is an issue with HS1GF-T, 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 HS1GF-T part is unused and in its original packaging.
Return procedure for HS1GF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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