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Taiwan Semiconductor Corporation RS1GFL
- Part No.:
- RS1GFL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
RS1GFL.pdf
- Description:
- 150NS, 1A, 400V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
RS1GFL from Taiwan Semiconductor is a 1 A, 400 V fast recovery surface-mount rectifier in SOD-123FL package, featuring 150 ns reverse recovery time, 0.91 V forward voltage at 1.0 A/25°C, and 30 A surge current capability - deployed in DC-DC converters and switching-mode inverters.
For engineers reviewing the RS1GFL datasheet, RS1GFL pinout, RS1GFL application, or RS1GFL equivalent, key selection criteria include its 400 V repetitive peak reverse voltage, low-profile SOD-123FL footprint, thermal resistance (RθJL = 17 °C/W), and J-STD-020 Level 1 moisture sensitivity rating.
Technical Context
The RS1GFL is a single-die, glass-passivated silicon junction rectifier optimized for high-frequency switching applications. Its fast recovery (trr ≤ 150 ns) and low forward voltage (VF = 0.91 V @ 1 A, 25°C) reduce conduction and switching losses in compact power supplies.
Thermally, it delivers RθJL = 17 °C/W and RθJA = 84 °C/W on a 5 mm × 5 mm Cu pad, supporting reliable operation up to TJ = 150 °C. Polarity is marked by a cathode band; terminals are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - supports input rectification in 28 V–48 V industrial DC-DC stages with 2× safety margin |
| IF | 1 A continuous - suitable for output rectification in sub-15 W isolated flyback or buck-boost converters |
| trr | ≤ 150 ns - enables efficient operation up to ~500 kHz switching frequency without excessive switching loss |
| VF | 0.91 V @ 1 A, 25°C - reduces conduction loss to < 0.91 W at full load, easing thermal design |
| RθJL | 17 °C/W - allows direct PCB copper pad heat sinking without heatsink, simplifying layout |
| CJ | 15 pF @ 1 MHz, 4 V - minimizes capacitive coupling noise in high-dv/dt gate-drive or snubber circuits |
| IFSM | 30 A (8.3 ms half-sine) - withstands inrush currents during cold-start of AC-DC adapters or motor drives |
Pinout & Package
SOD-123FL is a low-profile, surface-mount plastic package (2.7 mm × 1.6 mm × 1.0 mm) with gull-wing leads, UL 94V-0 rated molding compound, and cathode polarity indicated by a band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Current exit point during forward conduction; marked by band | Connected to output rail or filter capacitor positive terminal; defines output polarity |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable leakage performance (IR ≤ 5 µA @ 25°C) and long-term reliability under humidity stress |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow; compatible with standard SMT assembly lines |
| Low profile (1.0 mm height) | Permits use in space-constrained modules such as PoE injectors and USB-C PD adapters |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
| JESD 201 Class 1A whisker resistance | Prevents tin whisker growth under thermal cycling, critical for automotive and industrial field life |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12 V/1 A flyback converter powering industrial sensors. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 0.91 V forward drop and 150 ns recovery minimize power loss and EMI generation at 250 kHz switching. | Use Scenario: Freewheeling path for inductive loads in 24 V H-bridge motor drivers. IC Role / Device Role / Timing Role: Provides low-loss recirculation path during PWM off-time to clamp back-EMF spikes. Use Value: 400 V VRRM safely clamps transients up to 320 V, while 30 A IFSM handles motor stall surges. |
| AC-DC Adapter Input Bridge Leg | LED Driver Constant-Current Loop |
Use Scenario: One leg of a compact 230 VAC input bridge rectifier in 10 W wall adapter. IC Role / Device Role / Timing Role: Half-wave rectifier in discrete bridge configuration, handling 1 A average line current. Use Value: SOD-123FL footprint enables dense layout; glass passivation ensures stability across 40–85°C ambient. | Use Scenario: Output rectification in constant-current LED driver for streetlight modules (36 V, 0.7 A). IC Role / Device Role / Timing Role: Converts high-frequency transformer output to steady DC for LED string biasing. Use Value: 15 pF junction capacitance limits RF noise coupling into current-sense feedback path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR140 | TO-220AC package, 400 V VRRM, 50 ns trr, 1.25 V VF @ 1 A | Higher thermal mass but requires through-hole mounting and heatsinking | Preferred where higher surge robustness and lower trr outweigh SMT constraints |
| Vishay ES1D | SOD-123 package (not FL variant), 200 V VRRM, 35 ns trr, 0.95 V VF @ 1 A | Limited to ≤200 V systems; faster but lower voltage rating | Valid only in 24 V or 48 V telecom systems requiring ultra-fast recovery |
Compared with MUR140 and ES1D, the RS1GFL uniquely balances 400 V rating, SOD-123FL mountability, and 150 ns trr in a moisture-insensitive, halogen-free package - making it optimal for automated, high-volume, space-limited industrial power supplies.
Availability
RS1GFL is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and general-purpose rectification requiring stable component supply, consistent parametric performance, and J-STD-020 Level 1 assembly compatibility.
Supply support for RS1GFL 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 industrial, computing, and consumer markets since 1979.
The RS1GFL belongs to TSC's RS1xFL fast recovery rectifier family, engineered specifically for high-efficiency, surface-mount power conversion in cost-sensitive, high-volume applications where thermal performance and assembly reliability are critical.
FAQ
What is the maximum junction temperature rating for RS1GFL?
The RS1GFL has a maximum junction temperature (TJ) of +150 °C, verified per absolute maximum ratings in the official datasheet. This rating enables operation in enclosed industrial enclosures or near heat-generating components. Derating curves confirm usable current capacity down to 0.5 A at 125 °C ambient when mounted on a 5 mm × 5 mm Cu pad. The RS1GFL must not exceed this limit to maintain reliability and parametric stability.
Does RS1GFL have a cathode marking, and how is polarity identified?
Yes, RS1GFL uses a cathode band to indicate polarity - a visible ink mark on the SOD-123FL package body adjacent to the cathode terminal. This aligns with JEDEC standards and matches the mechanical drawing in the TSC datasheet. During PCB layout, the band must align with the cathode pad; incorrect orientation causes open-circuit failure. The RS1GFL's anode and cathode terminals are unambiguous due to this standardized marking.
What is the reverse recovery time (trr) specification for RS1GFL, and under what test conditions?
The RS1GFL reverse recovery time is specified as ≤150 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the official TSC datasheet. This value applies at TA = 25°C and confirms suitability for switching frequencies up to ~500 kHz. The RS1GFL's trr remains stable across temperature, with no degradation observed up to TJ = 125°C in characterization reports.
Is RS1GFL compatible with lead-free reflow soldering processes?
Yes, RS1GFL is fully compatible with lead-free reflow soldering per J-STD-020. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its moisture sensitivity level is rated Class 1 - meaning no pre-bake is required before reflow. Peak reflow temperatures up to 260 °C are supported, and the RS1GFL's UL 94V-0 molding compound ensures no delamination or cracking during thermal cycling.
How does RS1GFL's forward voltage compare to RS1JFL at 1.0 A and 25°C?
At 1.0 A and 25°C, RS1GFL has a typical forward voltage of 0.91 V, while RS1JFL (600 V version) is rated at 1.04 V typical under identical conditions. This 0.13 V difference reflects higher doping and lower series resistance in the RS1GFL's 400 V die, resulting in ~14% lower conduction loss. For designs operating near 400 V max, the RS1GFL offers superior efficiency versus higher-voltage variants like RS1JFL.
RS1GFL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123F
- 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:
- 1.05 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:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1GFL FAQ
1.How can I place an order for RS1GFL through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1GFL 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 RS1GFL reliable?
The price and inventory of RS1GFL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1GFL is usually 5 days.
3.What payment methods are accepted for RS1GFL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1GFL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1GFL?
RS1GFL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1GFL 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 RS1GFL?
For technical support, including RS1GFL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1GFL requirements.
6.How does Aetrix verify that RS1GFL is sourced from the original manufacturer or authorized distributors?
All RS1GFL 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 RS1GFL meets industry standards.
7.What is the process for return or replacement of RS1GFL?
All RS1GFL units undergo pre-shipment inspection (PSI). If there is an issue with RS1GFL, 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 RS1GFL part is unused and in its original packaging.
Return procedure for RS1GFL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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