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Taiwan Semiconductor Corporation RS1GFSH
- Part No.:
- RS1GFSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
RS1GFSH.pdf
- Description:
- DIODE GEN PURP 400V 1A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:28,000
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Product details
Overview
RS1GFSH from Taiwan Semiconductor is a 1A, 400V fast recovery surface-mount rectifier in SOD-128 package, featuring 150 ns reverse recovery time, 1.01 V forward voltage at 1.0A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in DC/DC converters where low conduction loss and thermal robustness are critical.
For engineers reviewing the RS1GFSH datasheet, RS1GFSH pinout, RS1GFSH application, or RS1GFSH equivalent, key selection factors include its 400V VRRM, 30A IFSM, 175°C TJMAX, J-STD-020 Level 1 moisture sensitivity, and SOD-128 thermal performance (RθJL = 29°C/W).
Technical Context
This single-die fast recovery rectifier uses glass-passivated junction technology to achieve stable switching behavior under repetitive surge conditions. Its 150 ns trr and low 7 pF junction capacitance support high-frequency operation in flyback and buck-derived topologies.
The SOD-128 package enables efficient heat transfer via copper pad mounting (RθJA = 84°C/W on 5 mm × 5 mm Cu), while matte tin-plated leads ensure reliable solderability per J-STD-002 and whisker resistance per JESD 201 Class 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in 400V-rated DC bus or clamp circuits |
| IF | 1 A - Continuous forward current rating; supports sustained conduction in 1A-output DC/DC stages |
| IFSM | 30 A - Non-repetitive surge current capability; handles inductive kickback in motor drive snubbers |
| trr | 150 ns - Reverse recovery time at IF = 0.5A, IR = 1.0A; limits switching losses in >100 kHz converters |
| TJMAX | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments |
| RθJL | 29 °C/W - Junction-to-lead thermal resistance; allows direct thermal path to PCB copper for passive cooling |
| VF @ 1A/25°C | 1.01 V (typ) - Forward voltage drop; determines conduction loss of ~1.01 W at full load |
Pinout & Package
SOD-128 surface-mount package with cathode-indicated band; 2-terminal configuration (anode and cathode), low-profile design (max height 1.20 mm), UL 94V-0 molding compound, and 0.027 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must withstand 30A surge |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output rail or ground return; blocks up to 400V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics per stress test requirements |
| Glass-passivated junction | Enhances long-term reliability and leakage stability under thermal cycling and humidity |
| J-STD-020 Level 1 moisture sensitivity | Enables standard SMT assembly without baking or dry-pack handling |
| Halogen-free & RoHS compliant | Meets environmental compliance for EU and global automotive supply chains |
| Low profile (1.20 mm max height) | Reduces board clearance constraints in space-constrained modules like ECU power stages |
Applications
| Automotive DC/DC Converters | Industrial Snubber Circuits |
|---|---|
Use Scenario: Step-down conversion in 12V–48V automotive domain controllers with 200–500 kHz switching frequency. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck regulator; recovers energy during high-side switch off-time. Use Value: 150 ns trr minimizes reverse recovery charge (Qrr) and associated switching loss, improving efficiency by ~0.8% over standard FRDs at 300 kHz. | Use Scenario: Voltage clamping across IGBTs in motor drives operating at 10–20 kHz with 600V bus. IC Role / Device Role / Timing Role: Snubber diode absorbing inductive turn-off energy; conducts transient current during voltage spike suppression. Use Value: 30A IFSM and 175°C TJMAX sustain repeated surge events without thermal runaway in industrial inverters. |
| On-Board Charger (OBC) Auxiliary Supplies | LED Driver Flyback Rectification |
Use Scenario: Isolated auxiliary supply (12V/0.5A) powered from main OBC HV bus (400V DC). IC Role / Device Role / Timing Role: Secondary-side rectifier in flyback converter; converts reflected AC to regulated DC output. Use Value: 400V VRRM provides 2× safety margin over reflected 200V peak, while 1.01 V VF keeps conduction loss below 0.5W at full load. | Use Scenario: Constant-current LED driver for commercial lighting with 350 mA output and 24V string voltage. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback; conducts during transformer reset phase. Use Value: Low 7 pF CJ reduces capacitive coupling noise into feedback loop, improving regulation stability in dimmable drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-1EWH04-M3/5AT | Same SOD-128 package, 400V VRRM, but 200 ns trr and higher VF (1.25 V @ 1A) | Higher conduction and switching loss; less suitable for >250 kHz designs | Acceptable where cost is prioritized over efficiency in <200 kHz industrial supplies |
| ON Semiconductor MUR1040T3G | TO-220AC package, 400V VRRM, 60 ns trr, but larger footprint and no AEC-Q101 rating | Requires heatsink; not qualified for automotive use; better for high-reliability non-automotive SMPS | Preferred when ultra-fast recovery is mandatory and board space allows through-hole mounting |
Compared with VS-1EWH04-M3/5AT and MUR1040T3G, RS1GFSH uniquely balances AEC-Q101 compliance, 150 ns trr, and SOD-128 thermal performance-making it optimal for space- and reliability-constrained automotive DC/DC stages where 200–400 kHz operation is required.
Availability
RS1GFSH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber circuits, and LED driver flyback rectification requiring stable component supply and AEC-Q101 traceability.
Supply support for RS1GFSH 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 automotive, industrial, and consumer markets since 1979.
The RS1GFSH belongs to TSC's AEC-Q101-qualified fast recovery rectifier family, designed specifically for high-efficiency, thermally demanding power conversion in automotive electrification systems.
FAQ
What is the maximum junction temperature rating for RS1GFSH?
The RS1GFSH has a maximum junction temperature (TJMAX) of +175°C, verified per absolute maximum ratings in the official datasheet. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial settings. Derating curves confirm usable current capacity down to 0.5A at 150°C ambient when mounted on a 5 mm × 5 mm copper pad. The RS1GFSH must not exceed this limit during steady-state or transient conditions.
Is RS1GFSH pin-compatible with other devices in the RS1xFSH series?
Yes, all RS1xFSH devices-including RS1DFSH, RS1GFSH, RS1JFSH, RS1KFSH, and RS1MFSH-share identical SOD-128 package dimensions, pinout, and thermal pad layout. The only differences are rated VRRM (200V to 1000V) and corresponding trr values (150–500 ns). Therefore, RS1GFSH can be substituted within the same footprint for 400V applications without PCB changes, provided voltage and recovery time requirements align.
Does RS1GFSH require special handling due to moisture sensitivity?
No-RS1GFSH is rated J-STD-020 Level 1 for moisture sensitivity, meaning it may be stored and processed under standard factory ambient conditions without baking or dry-pack requirements. This simplifies SMT line integration and eliminates pre-reflow moisture mitigation steps. The device's SOD-128 molding compound and terminations are fully compliant with IPC/JEDEC standards for Level 1 handling throughout manufacturing and storage.
What is the reverse recovery time (trr) specification for RS1GFSH?
The RS1GFSH has a reverse recovery time (trr) of 150 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the manufacturer's electrical specifications table. This value is confirmed across both 25°C and 125°C junction temperatures. The 150 ns trr directly impacts switching loss in high-frequency converters and is a key differentiator versus general-purpose rectifiers with trr > 500 ns.
Can RS1GFSH be used in place of a Schottky diode in low-voltage applications?
No-RS1GFSH is a silicon fast recovery rectifier with a typical VF of 1.01 V at 1A/25°C, whereas Schottky diodes offer ~0.3–0.6 V VF at similar currents. Its 400V VRRM and 150 ns trr make it suitable for medium-voltage, medium-frequency applications-not low-VF or low-voltage (<100V) roles. Substituting RS1GFSH for a Schottky in a 5V/3A output would increase conduction loss by ~0.5 W and is not recommended.
RS1GFSH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- 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:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 7pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1GFSH FAQ
1.How can I place an order for RS1GFSH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1GFSH 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 RS1GFSH reliable?
The price and inventory of RS1GFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1GFSH is usually 5 days.
3.What payment methods are accepted for RS1GFSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1GFSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1GFSH?
RS1GFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1GFSH 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 RS1GFSH?
For technical support, including RS1GFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1GFSH requirements.
6.How does Aetrix verify that RS1GFSH is sourced from the original manufacturer or authorized distributors?
All RS1GFSH 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 RS1GFSH meets industry standards.
7.What is the process for return or replacement of RS1GFSH?
All RS1GFSH units undergo pre-shipment inspection (PSI). If there is an issue with RS1GFSH, 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 RS1GFSH part is unused and in its original packaging.
Return procedure for RS1GFSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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