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Taiwan Semiconductor Corporation RS2MAF-T
- Part No.:
- RS2MAF-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
RS2MAF-T.pdf
- Description:
- 250NS, 2A, 1000V, FAST RECOVERY
- Quantity:
- Payment:
- Shipping:
Inventory:7,490
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Product details
Overview
RS2MAF-T from Taiwan Semiconductor is a 2A, 1000V fast recovery surface-mount rectifier in SMAF package, featuring 250 ns reverse recovery time, 1.14 V forward voltage at 2A/25°C, and 10 pF junction capacitance. It serves as the high-voltage variant in the RS2xAF-T family for DC-DC converters and switching inverters requiring robust reverse blocking and low switching loss.
For engineers reviewing the RS2MAF-T datasheet, RS2MAF-T pinout, RS2MAF-T application, or RS2MAF-T equivalent, key selection criteria include peak reverse voltage (1000 V), thermal resistance (RθJA = 89 °C/W), reverse leakage (≤100 µA at 125°C), and compatibility with automated SMT placement on standard PCB pads.
Technical Context
The RS2MAF-T employs a single-die, glass-passivated silicon junction optimized for fast recovery (trr ≤ 250 ns) under 0.5A forward / 1.0A reverse switching conditions. Its 1000 V VRRM rating enables use in high-bus industrial SMPS topologies where voltage margin and transient clamping are critical.
Thermal performance is defined for mounting on a 5 mm × 5 mm copper pad: RθJL = 15 °C/W and RθJC = 22 °C/W confirm direct lead-to-board heat conduction capability, while JESD201 Class 1 whisker resistance and J-STD-020 Level 1 moisture sensitivity support high-reliability reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports 700 V RMS input stages and withstands 1.4× line transients in 600 VAC systems |
| IF | 2 A continuous - rated for sustained conduction in 24–48 V output DC-DC secondaries |
| trr | ≤250 ns - reduces switching loss and EMI in 100–500 kHz hard-switched converters |
| VF @ 2A, 25°C | 1.14 V max - limits conduction loss to ≤2.28 W at full load, easing thermal design |
| CJ | 10 pF @ 1 MHz, 4 V - minimizes capacitive coupling noise in high-dv/dt gate-drive or snubber paths |
| IR @ 125°C | ≤100 µA - ensures stable reverse blocking in elevated ambient environments like motor drives |
| RθJA | 89 °C/W - requires ≥25 mm² Cu area for safe operation at 2 A in 70°C ambient |
Pinout & Package
Package: SMAF (Surface Mount Axial Flat), JEDEC DO-221AC compliant; 2.7 mm × 4.8 mm × 1.1 mm body with matte tin-plated leads; cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail; polarity band must align with PCB silkscreen for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability under humidity and thermal cycling without hermetic sealing |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow-compatible with standard SMT lines without dry-pack handling |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for enclosed power supplies and industrial enclosures |
| JESD 201 Class 1 whisker resistance | Prevents tin whisker growth under bias and temperature stress, ensuring solder joint integrity over 10+ years |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Industrial DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Isolated 48 V to 12 V step-down converter in PLC power modules with 300 kHz switching frequency. IC Role / Device Role / Timing Role: Output rectifier in synchronous or diode-based flyback topology. Use Value: 1000 V VRRM provides 3× safety margin over reflected 320 V spikes; 250 ns trr limits turn-off ringing and EMI filter size. | Use Scenario: Single-phase H-bridge inverter driving 230 VAC induction motors with regenerative braking. IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs to clamp inductive kickback. Use Value: Low 100 µA IR at 125°C prevents thermal runaway during extended brake cycles; 1.14 V VF keeps conduction loss below 2.3 W. |
| Telecom Power Supplies | Renewable Energy Interfaces |
Use Scenario: 48 V telecom rectifier module accepting 277 VAC input with PFC front-end and LLC resonant stage. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in LLC output stage. Use Value: 10 pF CJ minimizes capacitive feedthrough into control loop; glass passivation ensures field longevity in humid data centers. | Use Scenario: MPPT charge controller for 1000 V solar string inputs feeding 48 V battery banks. IC Role / Device Role / Timing Role: High-voltage blocking diode preventing reverse current flow from battery to PV array at night. Use Value: 1000 V VRRM directly matches EN 62109 string voltage ratings; 150°C TJMAX accommodates rooftop ambient extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06S | Same 2A/600V rating but lower VRRM; trr = 100 ns; TO-277 package (larger footprint) | Not suitable for 1000 V bus designs; better for 400 VAC input SMPS | Select only if system VRRM requirement ≤600 V and board space allows TO-277 |
| SS210H | 2A/1000V Schottky; VF = 0.85 V typical but limited to 125°C max junction temp | Lower conduction loss but cannot replace RS2MAF-T in >125°C ambient or high dv/dt noise environments | Prefer RS2MAF-T where reverse leakage <100 µA at 125°C and EMI immunity are mandatory |
Compared with STTH2R06S and SS210H, the RS2MAF-T uniquely balances 1000 V blocking, 250 ns recovery, and 150°C operation in a compact SMAF package-making it optimal for space-constrained, high-reliability industrial converters where both voltage margin and thermal headroom are non-negotiable.
Availability
RS2MAF-T is available at Aetrix Electronics and suitable for industrial DC-DC converters, switching inverters, and renewable energy interfaces requiring stable component supply across multi-year production cycles.
Supply support for RS2MAF-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, specializing in power rectifiers, TVS diodes, and MOSFETs since 1979.
The RS2xAF-T series was designed specifically for high-efficiency, high-reliability AC-DC and DC-DC power conversion in industrial and telecom infrastructure-emphasizing fast recovery, low leakage, and robust SMT manufacturability.
FAQ
What is the maximum junction temperature rating for RS2MAF-T?
The RS2MAF-T has a maximum junction temperature (TJMAX) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version B2103. This allows operation in high-ambient environments such as enclosed motor drives or rooftop solar controllers. Derating curves confirm usable current down to 1.2 A at 125°C ambient when mounted on a 5 mm × 5 mm Cu pad. The RS2MAF-T must not exceed this limit to maintain reliability and parametric stability.
Is RS2MAF-T compatible with lead-free reflow soldering processes?
Yes, the RS2MAF-T is fully compatible with lead-free reflow soldering per J-STD-002. Its matte tin-plated leads and UL 94V-0 molding compound support peak temperatures up to 260°C for ≤10 seconds. The device carries J-STD-020 Level 1 moisture sensitivity, meaning it can be placed directly from tape-and-reel without baking-even after extended storage. This simplifies manufacturing and eliminates yield loss from moisture-related popcorning during reflow.
How does the reverse recovery time of RS2MAF-T compare to lower-voltage variants in the same family?
The RS2MAF-T has a specified trr ≤ 250 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions-matching RS2JAF-T and RS2KAF-T, but slower than RS2DAF-T and RS2GAF-T (≤150 ns). This reflects the trade-off between higher voltage capability and minority-carrier lifetime control. Engineers selecting RS2MAF-T should account for the longer recovery in EMI filter sizing and snubber design versus the 200–400 V variants, especially above 200 kHz switching frequencies.
What is the marking code printed on the RS2MAF-T package?
The RS2MAF-T is marked "RS2MAF" on its body, per the ordering information table in the Taiwan Semiconductor datasheet. This distinguishes it from other family members: RS2DAF (200 V), RS2GAF (400 V), RS2JAF (600 V), and RS2KAF (800 V). The marking is laser-etched on the cathode-band side of the SMAF package and is visible under 10× magnification. No date code or factory code is included in the primary device marking for RS2MAF-T.
Does RS2MAF-T meet halogen-free and RoHS compliance standards?
Yes, the RS2MAF-T complies with both RoHS Directive 2011/65/EU and halogen-free requirements per IEC 61249-2-21. Taiwan Semiconductor confirms this in the "Features" section of the RS2DAF-T–RS2MAF-T datasheet (Version B2103), stating explicit compliance with no brominated flame retardants (BFRs), chlorinated flame retardants (CFRs), or antimony trioxide. Certificate of Compliance is available upon request from Aetrix Electronics for audit or documentation purposes.
RS2MAF-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):
- 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:
- 10pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMAF
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2MAF-T FAQ
1.How can I place an order for RS2MAF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2MAF-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 RS2MAF-T reliable?
The price and inventory of RS2MAF-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2MAF-T is usually 5 days.
3.What payment methods are accepted for RS2MAF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2MAF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2MAF-T?
RS2MAF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2MAF-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 RS2MAF-T?
For technical support, including RS2MAF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2MAF-T requirements.
6.How does Aetrix verify that RS2MAF-T is sourced from the original manufacturer or authorized distributors?
All RS2MAF-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 RS2MAF-T meets industry standards.
7.What is the process for return or replacement of RS2MAF-T?
All RS2MAF-T units undergo pre-shipment inspection (PSI). If there is an issue with RS2MAF-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 RS2MAF-T part is unused and in its original packaging.
Return procedure for RS2MAF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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