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Taiwan Semiconductor Corporation RS2MFL
- Part No.:
- RS2MFL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
RS2MFL.pdf
- Description:
- 250NS, 2A, 1000V, FAST RECOVERY
- Quantity:
- Payment:
- Shipping:
Inventory:8,840
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Product details
Overview
RS2MFL from Taiwan Semiconductor is a 2 A, 1000 V fast recovery surface-mount rectifier in SOD-123FL package, featuring 250 ns reverse recovery time, 1.09 V forward voltage at 2 A/25°C, and 150°C maximum junction temperature. It serves as the high-voltage member of the RS2xFL series for DC-DC converters and switching inverters requiring robust reverse blocking and low conduction loss.
For engineers reviewing the RS2MFL datasheet, RS2MFL pinout, RS2MFL application, or RS2MFL equivalent, key selection criteria include its 1000 V VRRM, 40 A IFSM surge rating, glass-passivated junction, moisture sensitivity level 1 compliance, and SOD-123FL thermal performance (RθJA = 116°C/W on 5 mm × 5 mm Cu pad).
Technical Context
The RS2MFL implements a single-die, planar-junction fast recovery rectifier architecture optimized for high-voltage switching applications. Its 250 ns trr and low 9 pF junction capacitance at 1 MHz/4 V enable efficient operation in high-frequency SMPS topologies up to several hundred kHz.
Thermal design relies on its SOD-123FL package with matte tin-plated leads and UL 94V-0 molding compound. Junction-to-ambient resistance is specified at 116°C/W under standardized PCB mounting conditions, supporting continuous 2 A conduction with appropriate board layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input stages in 800 V AC-line or 600 V DC bus systems with safety margin |
| IF | 2 A continuous - rated for steady-state output rectification in mid-power DC-DC modules |
| IFSM (8.3 ms) | 40 A - withstands inrush and transient surges without failure in converter startup |
| trr | 250 ns - minimizes switching losses and EMI in 100–500 kHz PWM circuits |
| VF @ 2 A, 25°C | 1.09 V - determines conduction loss and thermal rise in high-duty-cycle operation |
| CJ @ 1 MHz, 4 V | 9 pF - reduces capacitive coupling and improves high-frequency noise immunity |
| TJ max | 150°C - enables operation in sealed enclosures or high-ambient industrial environments |
Pinout & Package
SOD-123FL is a compact, surface-mount plastic package with cathode band marking, 0.016 g mass, and JESD201 Class 1 whisker resistance. Leads are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to unregulated or switched high-side node; requires thermal relief on PCB pour |
| Cathode | Output current exit point | Marked by band; ties to output filter capacitor or load return; primary heat path to PCB |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable leakage performance (<5 µA @ 25°C) and long-term reliability under humidity stress |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow, reducing manufacturing cost and process complexity |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for industrial and power supply end-equipment certifications |
| Low reverse leakage at 125°C | Max 150 µA ensures minimal standby power loss in high-temperature environments |
| Optimized for automated placement | Standard SOD-123FL footprint and lead geometry support high-yield pick-and-place assembly |
Applications
| AC-DC Front-End Rectification | Isolated DC-DC Secondary Side |
|---|---|
Use Scenario: Rectifying 400–800 V DC bus after PFC stage in telecom or server PSUs. IC Role / Device Role / Timing Role: High-voltage output rectifier handling continuous 2 A load with minimal conduction loss. Use Value: 1000 V VRRM provides 20%+ margin over 800 V bus, reducing risk of avalanche failure during line transients. | Use Scenario: Output rectification in 48 V isolated flyback or forward converters for industrial control. IC Role / Device Role / Timing Role: Fast-recovery diode synchronizing with MOSFET switching at 200–300 kHz. Use Value: 250 ns trr limits reverse recovery charge (Qrr) and associated switching loss, improving efficiency >0.5% at full load. |
| Photovoltaic Inverter DC Link | Motor Drive Auxiliary Power Supply |
Use Scenario: DC link clamping and freewheeling in string-level PV inverters operating up to 1000 V. IC Role / Device Role / Timing Role: Freewheeling path for IGBT gate drivers and auxiliary bias supplies. Use Value: 150°C TJ max and low IR at 125°C ensure stable operation in outdoor enclosures with ambient up to 85°C. | Use Scenario: Input rectification for 24 V auxiliary supply powering motor control logic and gate drivers. IC Role / Device Role / Timing Role: Primary rectifier converting 3-phase rectified AC to regulated DC bus. Use Value: Glass passivation and JESD201 Class 1 plating prevent corrosion and whisker growth in vibration-prone industrial settings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06 | Same 2 A / 600 V rating but lower VRRM; 75 ns trr, higher VF (1.3 V @ 2 A) | Better for <600 V systems needing ultra-fast recovery; unsuitable for 1000 V designs | Select RS2MFL when 1000 V blocking and thermal robustness outweigh speed priority |
| SB2100 | 2 A / 1000 V Schottky; zero Qrr but 100°C TJ max and higher IR at elevated temperature | Preferred where low VF dominates; not viable in high-temp or high-VR reverse-bias scenarios | Choose RS2MFL for 150°C operation and stable IR <150 µA at 125°C in critical power rails |
Compared with STTH2R06 and SB2100, the RS2MFL uniquely balances 1000 V capability, 150°C junction rating, and 250 ns recovery-making it optimal for high-reliability, high-temperature, high-voltage rectification where Schottky limitations or lower-VRRM alternatives fall short.
Availability
RS2MFL is available at Aetrix Electronics and suitable for DC-DC converters, photovoltaic inverters, and industrial motor drive auxiliary supplies requiring stable component supply across multi-year production cycles.
Supply support for RS2MFL 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 device manufacturer headquartered in Hsinchu, Taiwan, serving global power electronics and industrial markets since 1979.
The RS2MFL belongs to TSC's RS2xFL fast recovery rectifier family, engineered specifically for high-efficiency, high-reliability switching power supplies operating at elevated voltages and temperatures.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for RS2MFL?
The RS2MFL has a maximum repetitive peak reverse voltage (VRRM) of 1000 V, confirmed in the Absolute Maximum Ratings table for the RS2MFL variant. This rating is validated under standard test conditions (TA = 25°C) and defines the highest reverse voltage the device can block repeatedly without breakdown. The RS2MFL is the highest-voltage member of the RS2xFL series, with other variants ranging from 200 V (RS2DFL) to 800 V (RS2KFL).
Does RS2MFL have a RoHS-compliant and halogen-free construction?
Yes, the RS2MFL is RoHS compliant and halogen-free according to IEC 61249-2-21, as explicitly stated in the FEATURES section of the official datasheet. Its molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated-ensuring environmental compliance and compatibility with modern lead-free reflow processes without compromising solderability or whisker resistance.
What is the reverse recovery time (trr) of RS2MFL and under what test conditions?
The RS2MFL has a reverse recovery time (trr) of 250 ns maximum, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Electrical Specifications table. This value applies specifically to RS2JFL, RS2KFL, and RS2MFL variants. The 250 ns trr reflects its fast recovery performance at high voltage, distinguishing it from lower-voltage variants like RS2DFL/RS2GFL (150 ns max) which trade speed for lower VF.
What package type does RS2MFL use and what are its mechanical identifiers?
The RS2MFL uses the SOD-123FL package, confirmed in Mechanical Data and Ordering Information sections. Key identifiers include a cathode band for polarity, matte tin-plated leads compliant with J-STD-002, UL 94V-0 flammability-rated molding compound, and a weight of approximately 0.016 g. Its marking code is R2MF, and it is supplied in tape-and-reel packaging (10,000 units per reel).
How does RS2MFL's thermal resistance compare between junction-to-lead and junction-to-ambient?
The RS2MFL has a junction-to-lead thermal resistance (RθJL) of 81°C/W and a junction-to-ambient thermal resistance (RθJA) of 116°C/W, both measured on a standard 5 mm × 5 mm copper pad PCB per JEDEC test conditions. This 35°C/W difference highlights the importance of thermal via placement and copper area under the cathode pad to maximize heat transfer from junction to PCB, especially under continuous 2 A load at elevated ambient temperatures.
RS2MFL 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):
- 1000 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 9pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2MFL FAQ
1.How can I place an order for RS2MFL through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2MFL 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 RS2MFL reliable?
The price and inventory of RS2MFL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2MFL is usually 5 days.
3.What payment methods are accepted for RS2MFL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2MFL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2MFL?
RS2MFL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2MFL 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 RS2MFL?
For technical support, including RS2MFL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2MFL requirements.
6.How does Aetrix verify that RS2MFL is sourced from the original manufacturer or authorized distributors?
All RS2MFL 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 RS2MFL meets industry standards.
7.What is the process for return or replacement of RS2MFL?
All RS2MFL units undergo pre-shipment inspection (PSI). If there is an issue with RS2MFL, 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 RS2MFL part is unused and in its original packaging.
Return procedure for RS2MFL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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