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Taiwan Semiconductor Corporation RS2MAL
- Part No.:
- RS2MAL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
RS2MAL.pdf
- Description:
- DIODE GEN PURP 1KV 2A THIN SMA
- Quantity:
- Payment:
- Shipping:
Inventory:23,770
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Product details
Overview
RS2MAL from Taiwan Semiconductor is a 1000 V, 2 A fast recovery surface-mount rectifier in Thin SMA package, featuring 500 ns reverse recovery time, 1.06 V forward voltage at 2 A/25°C, and 175°C maximum junction temperature - deployed in high-voltage DC-DC converters and switching inverters.
For engineers reviewing the RS2MAL datasheet, RS2MAL pinout, RS2MAL application, or RS2MAL equivalent, key selection criteria include peak reverse voltage rating, thermal resistance (RθJL = 16°C/W), surge current capability (140 A @ 1 ms), and RoHS/halogen-free compliance for industrial power conversion designs.
Technical Context
The RS2MAL is a single-die, glass-passivated fast recovery rectifier optimized for high-efficiency switching applications. Its 1000 V VRRM and 500 ns trr enable operation in 80–500 kHz SMPS topologies where reduced switching loss and low reverse recovery charge are critical.
Thermal performance is defined with RθJL = 16°C/W and RθJA = 73°C/W on a 5 mm × 5 mm Cu pad PCB. The device operates across –55°C to +175°C junction range and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports primary-side rectification in offline 800 V AC-input or 1000 V bus systems |
| IF | 2 A continuous - rated for sustained conduction in compact 10–30 W isolated DC-DC stages |
| trr | 500 ns - minimizes turn-off loss and EMI in hard-switched flyback and forward converters |
| VF @ 2A/25°C | 1.06 V - enables <1.3 W conduction loss at full load, supporting >90% efficiency targets |
| RθJL | 16 °C/W - allows direct thermal coupling to PCB copper, reducing need for heatsinks in space-constrained layouts |
| IFSM @ 1ms | 140 A - withstands startup surges and short-circuit transients without bond-wire failure |
| CJ @ 1MHz/4V | 10 pF - limits capacitive coupling noise in high-dv/dt gate-drive or snubber circuits |
Pinout & Package
Package: Thin SMA (JEDEC DO-221AC variation), surface-mount, cathode-indicated by band, matte tin-plated leads, 0.029 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Output terminal for forward conduction | Connected to output rail or filter capacitor; polarity marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term reliability under humidity and thermal cycling per J-STD-020 Level 1 |
| Fast recovery (500 ns) | Reduces reverse recovery loss and associated ringing in high-frequency SMPS designs |
| Low profile Thin SMA package | Enables ≤1.25 mm board height in ultra-thin power adapters and LED drivers |
| RoHS & halogen-free | Meets IPC-1752A material declaration requirements for export-compliant industrial equipment |
| Junction temp max 175°C | Supports operation in sealed enclosures or high-ambient environments without derating below 2 A |
Applications
| Industrial DC-DC Converters | Photovoltaic Inverters |
|---|---|
Use Scenario: Isolated 48 V to 12 V step-down converter in programmable logic controller (PLC) power supply. IC Role / Device Role / Timing Role: Output rectifier in synchronous flyback topology handling 2 A continuous load. Use Value: 1000 V VRRM provides 2× safety margin over reflected 400 V transient spikes; 500 ns trr suppresses diode-induced EMI during MOSFET turn-on. | Use Scenario: String-level DC bus rectification in microinverters interfacing 600–1000 V PV arrays. IC Role / Device Role / Timing Role: Freewheeling diode in H-bridge inverter stage managing bidirectional energy flow. Use Value: 175°C TJMAX ensures stable operation under desert ambient conditions; 140 A IFSM clamps lightning-induced surge currents. |
| LED Driver Power Supplies | Automotive On-Board Chargers (OBC) |
Use Scenario: Secondary-side rectification in quasi-resonant flyback powering high-brightness LED modules. IC Role / Device Role / Timing Role: High-efficiency unidirectional current path delivering constant current to LED string. Use Value: 1.06 V VF at 2 A reduces conduction loss by 12% vs. legacy 1.2 V diodes, improving thermal headroom in enclosed fixtures. | Use Scenario: Auxiliary power supply rectifier in 6.6 kW OBC converting 400 V battery to 12 V control rail. IC Role / Device Role / Timing Role: Input-stage rectifier in active clamp forward converter operating at 200 kHz. Use Value: RθJL = 16°C/W enables direct thermal transfer to aluminum-core PCB, eliminating discrete thermal interface materials. |
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 | 600 V VRRM, 2 A, 75 ns trr, TO-220AC package | Lower voltage rating; requires layout redesign for 1000 V systems | Preferred where ultra-fast recovery (<100 ns) is prioritized over voltage rating and SMT assembly |
| ON Semi MURS260 | 600 V VRRM, 2 A, 35 ns trr, SMA package | Insufficient VRRM margin for 800+ V bus applications; faster but less rugged | Valid for 400 V systems needing minimal reverse recovery charge; not suitable as drop-in for RS2MAL's 1000 V use cases |
Compared with STTH2R06 and MURS260, the RS2MAL uniquely delivers 1000 V blocking capability in an SMT Thin SMA package with balanced 500 ns recovery - making it the only option among the three qualified for 800–1000 V DC bus rectification without package or layout change.
Availability
RS2MAL is available at Aetrix Electronics and suitable for industrial DC-DC converters, photovoltaic inverters, and automotive on-board chargers requiring stable component supply and long-lifecycle support.
Supply support for RS2MAL 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 power discrete manufacturer headquartered in Hsinchu, Taiwan, serving global industrial and automotive markets since 1979.
The RS2MAL belongs to TSC's RS2xAL fast recovery rectifier family, engineered specifically for high-voltage, high-frequency switching power supplies where reliability under thermal stress and surge conditions is mandatory.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the RS2MAL?
The RS2MAL has a maximum repetitive peak reverse voltage (VRRM) of 1000 V, verified per TSC datasheet C2304. This rating allows the RS2MAL to safely operate in 800 V DC bus applications with 20% design margin. It is the highest voltage grade in the RS2xAL series, distinguishing it from RS2DAL (200 V) and RS2KAL (800 V). The 1000 V rating is confirmed in the Absolute Maximum Ratings table and applies under standard test conditions (TA = 25°C).
Does the RS2MAL have a specified reverse recovery time (trr)?
Yes, the RS2MAL has a specified reverse recovery time (trr) of 500 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the Electrical Specifications table. This value is higher than RS2DAL–RS2JAL variants (150–250 ns) due to its higher voltage construction, and is critical for estimating switching loss in high-frequency converters. The 500 ns trr is validated across temperature and appears consistently in both datasheet version C2304 and TSC's official parametric search.
What package type does the RS2MAL use, and what are its key mechanical features?
The RS2MAL uses the Thin SMA package (JEDEC DO-221AC variation), with dimensions 4.40 × 2.70 × 1.20 mm and cathode indicated by a band. Key mechanical features include matte tin-plated leads compliant with J-STD-002, UL 94V-0 molding compound, JESD201 Class 2 whisker resistance, and moisture sensitivity level 1. Its 0.029 g mass and low profile support automated pick-and-place and high-density PCB layouts - all confirmed in the Mechanical Data and Package Outline sections of the RS2MAL datasheet.
Is the RS2MAL RoHS compliant and halogen-free?
Yes, the RS2MAL is RoHS compliant and halogen-free, as explicitly stated in the FEATURES section of the TSC datasheet C2304. Compliance is verified per EU Directive 2011/65/EU and IEC 61249-2-21:2011. The halogen-free status means total bromine and chlorine content is <900 ppm each, and no antimony trioxide or phosphorus flame retardants are used - essential for meeting environmental requirements in industrial and medical-grade power supplies.
What is the junction-to-lead thermal resistance (RθJL) of the RS2MAL, and how is it measured?
The RS2MAL has a junction-to-lead thermal resistance (RθJL) of 16°C/W, measured with the device mounted on a 5 mm × 5 mm copper pad PCB per JEDEC JESD51-14. This value reflects direct thermal conduction from die to soldered lead, enabling efficient heat extraction without external heatsinks. It is lower than RθJA (73°C/W), confirming that PCB copper area dominates thermal performance - a key design insight for optimizing thermal layout in RS2MAL-based power stages.
RS2MAL 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:
- 1.05 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 1000 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2MAL FAQ
1.How can I place an order for RS2MAL through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2MAL 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 RS2MAL reliable?
The price and inventory of RS2MAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2MAL is usually 5 days.
3.What payment methods are accepted for RS2MAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2MAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2MAL?
RS2MAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2MAL 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 RS2MAL?
For technical support, including RS2MAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2MAL requirements.
6.How does Aetrix verify that RS2MAL is sourced from the original manufacturer or authorized distributors?
All RS2MAL 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 RS2MAL meets industry standards.
7.What is the process for return or replacement of RS2MAL?
All RS2MAL units undergo pre-shipment inspection (PSI). If there is an issue with RS2MAL, 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 RS2MAL part is unused and in its original packaging.
Return procedure for RS2MAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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