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Taiwan Semiconductor Corporation RS2DAL
- Part No.:
- RS2DAL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
RS2DAL.pdf
- Description:
- DIODE GEN PURP 200V 2A THIN SMA
- Quantity:
- Payment:
- Shipping:
Inventory:6,880
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Product details
Overview
RS2DAL from Taiwan Semiconductor is a 2A, 200V fast recovery surface-mount rectifier in a Thin SMA package, featuring 150 ns reverse recovery time, 0.93 V forward voltage at 1.0 A/25°C, and 175°C maximum junction temperature. It serves as a primary output rectifier in DC-DC converters requiring high efficiency and compact layout.
For engineers reviewing the RS2DAL datasheet, RS2DAL pinout, RS2DAL application, or RS2DAL equivalent, key selection criteria include its 200V VRRM rating, low-profile Thin SMA footprint, 50 A IFSM surge capability, thermal resistance (RθJL = 16°C/W), and J-STD-020 Level 1 moisture sensitivity for reliable SMT assembly.
Technical Context
The RS2DAL employs a single-die, glass-passivated PN junction optimized for fast switching in high-frequency power conversion. Its 150 ns trr and low 11 pF junction capacitance minimize switching losses and EMI generation in SMPS topologies operating up to several hundred kHz.
Thermal performance is defined by RθJL = 16°C/W and RθJA = 73°C/W on a 5 mm × 5 mm copper pad, enabling sustained 2 A conduction at ambient temperatures up to 85°C without forced cooling. The cathode-band polarity marking ensures unambiguous PCB orientation during automated placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; sets upper limit for input/output voltage rails in buck, flyback, or forward converters |
| IF | 2 A continuous - Rated average forward current; supports typical 12–48 V output stages delivering up to ~24 W with appropriate heatsinking |
| trr | 150 ns - Fast reverse recovery enables efficient operation in 100–500 kHz switching converters with reduced turn-off loss |
| VF @ 1A/25°C | 0.93 V - Low forward drop reduces conduction loss and improves system efficiency over higher-VF alternatives |
| RθJL | 16 °C/W - Low junction-to-lead thermal resistance allows direct heat transfer to PCB copper, simplifying thermal design |
| Moisture Sensitivity | Level 1 (J-STD-020) - No dry-pack or baking required before reflow, streamlining manufacturing logistics |
Pinout & Package
Package: Thin SMA (JEDEC DO-221AC variation), 4.40 mm × 2.70 mm × 1.20 mm body, 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 in synchronous rectification) |
| Cathode | Forward current exit point | Connected to output rail; marked by visible band; must route to minimum-inductance path for stable regulation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under thermal cycling and humidity exposure, critical for industrial power supplies |
| Low profile (1.20 mm height) | Enables ultra-thin power modules and space-constrained board layouts such as PoE injectors or USB PD adapters |
| Fast switching (150 ns trr) | Reduces reverse recovery charge (Qrr), lowering EMI and improving efficiency in high-frequency DC-DC stages |
| J-STD-002 solderable leads | Guarantees robust wetting and joint integrity during lead-free reflow, minimizing voiding and cold-solder defects |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Auxiliary Supply |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12 V/2 A buck-derived converter for telecom interface cards. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 0.93 V VF minimizes conduction loss; 150 ns trr prevents cross-conduction in quasi-resonant designs. | Use Scenario: Bias supply rectification for gate drivers in 3-phase motor inverters operating at 16 kHz PWM. IC Role / Device Role / Timing Role: High-reliability AC-to-DC conversion feeding isolated auxiliary rails powering control logic and isolation amplifiers. Use Value: 175°C TJ max and 50 A IFSM withstand startup surges and fault transients without derating. |
| Industrial PLC Power Module | LED Driver Secondary Rectification |
Use Scenario: Input rectification stage in wide-input (9–36 VDC) DIN-rail power module for programmable logic controllers. IC Role / Device Role / Timing Role: Primary rectifier handling continuous 2 A load with transient overload tolerance per IEC 61000-4-5. Use Value: Glass passivation and JESD201 Class 2 whisker resistance ensure 15+ year field life in vibration-prone environments. | Use Scenario: Output rectification in constant-current LED driver for architectural lighting (24 V, 700 mA). IC Role / Device Role / Timing Role: Efficient, low-noise DC generation feeding linear or buck-based current regulators. Use Value: 11 pF CJ and low IR (<1 µA @ 25°C) prevent leakage-induced dimming drift and reduce capacitive coupling noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R02 | 2 A, 200 V, TO-220AC package; VF = 0.95 V @ 1 A; trr = 110 ns; RθJA = 50°C/W (with heatsink) | Requires through-hole mounting and external heatsink; unsuitable for ultra-thin or high-density SMT designs | Choose STTH2R02 only when higher surge rating (100 A IFSM) and heatsink-assisted thermal management are prioritized over board space. |
| MBR220LSFT1G | 2 A, 200 V Schottky; VF = 0.52 V @ 1 A; trr = not applicable; TJ max = 125°C; RθJA = 110°C/W | Lacks reverse voltage margin for noisy 24 V systems; limited to low-voltage, low-temperature environments | Select MBR220LSFT1G where ultra-low VF dominates and reverse leakage <10 nA is mandatory, but avoid in 85°C ambient or >150 V transient conditions. |
Compared with STTH2R02 and MBR220LSFT1G, the RS2DAL delivers optimal balance of SMT compatibility, 200 V robustness, 150 ns switching speed, and 175°C thermal capability-making it ideal for space-constrained, high-reliability industrial DC-DC converters where Schottky limitations or through-hole constraints apply.
Availability
RS2DAL is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and industrial PLC power modules requiring stable component supply, consistent parametric performance, and full traceability across production batches.
Supply support for RS2DAL 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, MOSFETs, and ICs since 1979.
The RS2DAL belongs to TSC's RS2xAL fast recovery rectifier family, engineered specifically for high-efficiency, high-density AC/DC and DC/DC power conversion in industrial, telecom, and consumer applications demanding reliability and SMT manufacturability.
FAQ
What is the maximum junction temperature rating for the RS2DAL?
The RS2DAL has a maximum junction temperature (TJ max) of +175°C, allowing operation in high-ambient environments such as enclosed industrial enclosures or near heat-generating components. This rating is validated under specified thermal conditions including RθJL = 16°C/W and proper PCB copper area. Derating curves in the RS2DAL datasheet define safe IF vs. TA limits to maintain this TJ max reliably over lifetime.
Does the RS2DAL have a RoHS-compliant and halogen-free construction?
Yes, the RS2DAL is RoHS compliant and halogen-free per TSC's material declarations. Its molding compound meets UL 94V-0 flammability standards, and terminals are matte tin plated per J-STD-002. These attributes satisfy environmental compliance requirements for CE-marked industrial equipment and meet IPC-1752 reporting thresholds for supply chain sustainability reporting.
What does the "DAL" suffix indicate in RS2DAL?
The "DAL" suffix in RS2DAL identifies the Thin SMA package variant within TSC's RS2xAL rectifier series. The "D" denotes the 200 V VRRM rating (per ordering code table), "A" indicates the standard anode-cathode configuration, and "L" specifies lead-free, RoHS-compliant construction. This distinguishes RS2DAL from RS2GAL (400 V), RS2JAL (600 V), and other voltage grades in the same family.
Can the RS2DAL be used in place of a Schottky diode like MBR220LSFT1G?
The RS2DAL can serve as a functional alternative to MBR220LSFT1G in 200 V applications where higher reverse voltage margin and elevated temperature operation are needed-but not as a direct replacement. Unlike the Schottky, RS2DAL has higher VF (0.93 V vs. 0.52 V) and exhibits reverse recovery behavior (trr = 150 ns). Use RS2DAL where 175°C operation, 200 V robustness, and low leakage at high temperature outweigh ultra-low VF requirements.
What is the recommended PCB pad layout for the RS2DAL in high-reliability designs?
TSC recommends using the JEDEC DO-221AC-compliant pad layout from datasheet revision C2304: 4.40 mm × 2.70 mm land pattern with 1.40 mm anode/cathode pad spacing and ≥1 oz copper. For thermal reliability, connect both leads to ≥5 mm × 5 mm internal or external copper planes. Avoid acute-angle traces and ensure cathode band alignment matches silkscreen polarity to prevent assembly errors.
RS2DAL 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):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.02 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 V
- Capacitance @ Vr, F:
- 11pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2DAL FAQ
1.How can I place an order for RS2DAL through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2DAL 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 RS2DAL reliable?
The price and inventory of RS2DAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2DAL is usually 5 days.
3.What payment methods are accepted for RS2DAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2DAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2DAL?
RS2DAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2DAL 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 RS2DAL?
For technical support, including RS2DAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2DAL requirements.
6.How does Aetrix verify that RS2DAL is sourced from the original manufacturer or authorized distributors?
All RS2DAL 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 RS2DAL meets industry standards.
7.What is the process for return or replacement of RS2DAL?
All RS2DAL units undergo pre-shipment inspection (PSI). If there is an issue with RS2DAL, 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 RS2DAL part is unused and in its original packaging.
Return procedure for RS2DAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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