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Taiwan Semiconductor Corporation HS1G-K
- Part No.:
- HS1G-K
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
HS1G-K.pdf
- Description:
- 50NS, 1A, 400V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:7,155
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Product details
Overview
HS1G-K from Taiwan Semiconductor is a 1A, 400V repetitive peak reverse voltage surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring 1.3V max forward voltage at 1A and 50ns max reverse recovery time. It serves as a high-efficiency freewheeling or output rectifier in DC-DC converters and switching-mode power supplies.
For engineers reviewing the HS1G-K datasheet, HS1G-K pinout, HS1G-K application, or HS1G-K equivalent, key selection criteria include its 400V VRRM, 30A IFSM, 70°C/W RθJA, JESD201 Class 1A whisker resistance, and moisture sensitivity level 1 compliance - all critical for industrial power supply reliability and automated SMT assembly.
Technical Context
This is a single-die, glass-passivated, planar junction silicon rectifier optimized for fast switching and low conduction loss. Its 50ns reverse recovery time and 1.3V forward voltage at rated current support high-frequency operation in SMPS topologies without requiring snubbers or active clamping.
The device operates across –55°C to +150°C junction temperature range, with thermal resistance of 70°C/W (junction-to-ambient), and uses matte tin-plated leads compliant with J-STD-002 solderability standards and UL 94V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines usable input/output voltage range in flyback or buck converters |
| IF | 1 A continuous - Rated average forward current; determines steady-state power handling capability |
| IFSM | 30 A - Peak non-repetitive surge current; supports inrush and transient overload tolerance |
| VF (max) | 1.3 V @ 1A, 25°C - Directly impacts conduction loss and thermal rise in high-duty-cycle applications |
| trr (max) | 50 ns - Enables efficient operation up to ~2 MHz switching frequencies with minimal switching loss |
| CJ | 20 pF @ 1 MHz, 4V - Low junction capacitance reduces capacitive coupling and EMI in high-speed circuits |
| RθJA | 70 °C/W - Thermal performance baseline for PCB layout and heatsinking decisions in enclosed environments |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration. Cathode indicated by band on body. Matte tin-plated leads, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or transformer secondary center-tap) |
| Cathode | Forward current exit point | Connected to output rail or filter capacitor; polarity marking ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| Moisture sensitivity level 1 | Enables direct use from reel without baking; eliminates production delay and moisture-related popcorning risk |
| JESD201 Class 1A whisker resistance | Prevents tin whisker growth over lifetime; critical for automotive and telecom infrastructure deployments |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for enclosed power supplies and safety-certified end equipment |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12V–48V output DC-DC modules for server PSUs. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer AC to regulated DC; replaces Schottky where higher VRRM is required. Use Value: 400V VRRM and 1.3V VF enable >92% efficiency at 1A load while maintaining margin against reflected transients. | Use Scenario: Freewheeling path in half-bridge motor drive inverters for HVAC compressors. IC Role / Device Role / Timing Role: Clamp diode providing low-loss return path during MOSFET dead-time; handles 30A surge during commutation. Use Value: 50ns trr minimizes reverse recovery charge (Qrr) and associated switching loss in 20–50 kHz PWM operation. |
| SMPS Power Supplies | Industrial Control Systems |
Use Scenario: Input bridge rectification in universal-input (85–265VAC) offline flyback adapters. IC Role / Device Role / Timing Role: Primary-side rectifier converting AC line to bulk DC; operates in discontinuous conduction mode. Use Value: 70°C/W RθJA and 150°C TJMAX allow full 1A rating on standard 1-oz copper without heatsink in compact enclosures. | Use Scenario: Protection rectifier in 24V DC-powered PLC I/O modules exposed to inductive load back-EMF. IC Role / Device Role / Timing Role: Reverse-polarity and inductive kickback clamp; absorbs energy from solenoid de-energization. Use Value: 30A IFSM withstands repeated 100ms inductive surges; glass passivation ensures stability in dusty, high-vibration cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R04 | Same 1A/400V rating but 55ns trr; VF = 1.35V max; TO-277 package (no leads) | Requires rework of pad layout; lacks J-STD-002 solderability validation | Preferred only when leadless mounting or higher surge robustness is prioritized over SMT compatibility |
| MBR140 | Schottky type; 40V VRRM, 1.1V VF, no reverse recovery; DO-41 package | Not suitable for 400V blocking; limited to low-voltage outputs | Select only for <40V DC-DC outputs where ultra-low VF outweighs voltage limitation |
Compared with STTH1R04 and MBR140, the HS1G-K uniquely balances 400V blocking, 50ns speed, and DO-214AC manufacturability - making it optimal for cost-sensitive, high-volume 24–48V industrial SMPS where leaded SMT placement and J-STD-020 Level 1 handling are mandatory.
Availability
HS1G-K is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial control systems requiring stable component supply, consistent parametric performance, and full traceability across production lots.
Supply support for HS1G-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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and consumer markets since 1979.
The HS1G-K belongs to TSC's HS1x-K high-efficiency rectifier family, engineered specifically for high-frequency, surface-mount power conversion where reliability under thermal stress and automated assembly yield are primary design constraints.
FAQ
What is the maximum junction temperature rating for HS1G-K?
The HS1G-K has a maximum junction temperature (TJ) rating of +150°C, with operational range from –55°C to +150°C. This allows sustained 1A forward current in ambient temperatures up to +80°C on standard PCB layouts. Derating curves in the official TSC datasheet (Version F2111) confirm full-rated current is maintained up to 75°C ambient with adequate copper area. The HS1G-K must not exceed this limit to ensure long-term reliability and avoid parametric shift.
Is HS1G-K suitable for use in RoHS-compliant and halogen-free designs?
Yes, the HS1G-K is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the molding compound is UL 94V-0 rated. These attributes are verified in TSC's official documentation (Version F2111) and confirmed on authorized distributor listings. HS1G-K meets environmental compliance mandates for industrial and networking equipment without requiring material declarations or exemptions.
What does the "G" in HS1G-K signify?
The "G" in HS1G-K denotes the 400V repetitive peak reverse voltage (VRRM) rating, per TSC's standardized ordering code: HS1D-K = 200V, HS1G-K = 400V, HS1J-K = 600V, etc. This letter is also the device's marking code printed on the cathode band. The "-K" suffix indicates DO-214AC (SMA) packaging and tape-and-reel delivery (7,500 units per reel). No other electrical or thermal parameters vary between HS1x-K variants beyond VRRM and related breakdown characteristics.
How does HS1G-K compare to HS1D-K in terms of forward voltage and recovery time?
Both HS1G-K and HS1D-K share identical forward voltage (1.0V typ, 1.3V max) and reverse recovery time (50ns max) specifications at 1A test conditions, as confirmed in TSC's Electrical Specifications table (Version F2111). The sole functional difference is VRRM: HS1D-K is rated for 200V, while HS1G-K is rated for 400V. All thermal, mechanical, and packaging parameters - including RθJA, DO-214AC footprint, and moisture sensitivity - are identical across the HS1x-K series.
Can HS1G-K be used as a direct replacement for HS1J-K in a 600V circuit?
No, HS1G-K is not suitable as a direct replacement for HS1J-K in a 600V circuit. HS1G-K has a VRRM of 400V, while HS1J-K is rated for 600V. Exceeding the 400V reverse voltage risks catastrophic avalanche failure. The HS1G-K datasheet explicitly limits its use to circuits where peak reverse voltage remains ≤400V. For 600V applications, HS1J-K or higher-rated variants must be selected - HS1G-K cannot be substituted without redesigning voltage derating margins and validating transient suppression.
HS1G-K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- 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:
- 1.7 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:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1G-K FAQ
1.How can I place an order for HS1G-K through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1G-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 HS1G-K reliable?
The price and inventory of HS1G-K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1G-K is usually 5 days.
3.What payment methods are accepted for HS1G-K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1G-K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1G-K?
HS1G-K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1G-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 HS1G-K?
For technical support, including HS1G-K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1G-K requirements.
6.How does Aetrix verify that HS1G-K is sourced from the original manufacturer or authorized distributors?
All HS1G-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 HS1G-K meets industry standards.
7.What is the process for return or replacement of HS1G-K?
All HS1G-K units undergo pre-shipment inspection (PSI). If there is an issue with HS1G-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 HS1G-K part is unused and in its original packaging.
Return procedure for HS1G-K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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