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Taiwan Semiconductor Corporation RS2BA
- Part No.:
- RS2BA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS2BA.pdf
- Description:
- DIODE GEN PURP 50V 1.5A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,772
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Product details
Overview
RS2BA from Taiwan Semiconductor is a 1.5A, 100V fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 50A peak surge current, 175°C max junction temperature, and 150ns reverse recovery time. It serves as a primary output rectifier in DC-DC converters and switching-mode power supplies where efficiency and thermal robustness are critical.
For engineers reviewing the RS2BA datasheet, RS2BA pinout, RS2BA application, or RS2BA equivalent, key selection criteria include its 100V VRRM, 1.3V max forward voltage at 1.5A, 5µA max reverse leakage at 25°C, DO-214AC mechanical compatibility, and suitability for automated SMT assembly in high-frequency power conversion designs.
Technical Context
This discrete diode employs a glass-passivated silicon junction optimized for fast recovery (trr ≤ 150ns), enabling high-efficiency operation in 50–500kHz switching topologies. Its thermal resistance of 18°C/W (junction-to-lead) supports direct PCB heat conduction in compact layouts.
The device operates across –55°C to +175°C junction range with moisture sensitivity level 1 (J-STD-020), matte tin-plated leads compliant with J-STD-002, and UL 94V-0 molding compound - confirming readiness for industrial-grade reflow and long-term reliability under thermal cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage before breakdown; defines safe operating limit in flyback or forward converter secondary-side applications. |
| IF | 1.5 A - Continuous average forward current at TL = 75°C; determines steady-state power handling without derating. |
| IFSM | 50 A - Non-repetitive peak surge current (8.3ms half-sine); enables robustness against line transients and startup inrush. |
| trr | 150 ns - Reverse recovery time at IF=0.5A, IR=1.0A, Irr=0.25A; directly impacts switching losses and EMI in high-frequency SMPS. |
| VF max | 1.3 V - Forward voltage drop at IF=1.5A, TJ=25°C; sets conduction loss baseline for thermal design and efficiency calculation. |
| RθJL | 18 °C/W - Junction-to-lead thermal resistance; enables accurate thermal modeling when mounted on copper pads with thermal vias. |
| CJ | 50 pF - Junction capacitance at 1MHz, VR=4V; influences high-frequency noise coupling and snubber design requirements. |
Pinout & Package
DO-214AC (SMA) surface-mount package with molded plastic body (UL 94V-0), cathode indicated by band, matte tin-plated leads, and polarity-aligned orientation for automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or ground return path) in rectification circuits. |
| Cathode | Forward current exit point | Connected to output rail or filter capacitor positive terminal; marked by visible band for orientation verification during assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and humidity resistance without requiring conformal coating in humid environments. |
| Fast recovery (150ns) | Reduces switching losses and associated heat generation in 100–300kHz DC-DC converters compared to standard rectifiers. |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow, supporting direct use in J-STD-020-compliant SMT lines without process interruption. |
| RoHS & halogen-free | Meets global environmental compliance mandates (EU RoHS Directive 2011/65/EU, IEC 61249-2-21) for industrial and consumer end equipment. |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Auxiliary Supply |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12V/24V buck-derived DC-DC modules powering FPGA I/O banks or sensor interfaces. IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer AC output to regulated DC; timing role defined by trr-driven switching node transitions. Use Value: 150ns trr minimizes reverse recovery charge (Qrr) and associated turn-off losses, improving full-load efficiency by ~0.8% versus 500ns alternatives. | Use Scenario: Low-power auxiliary bias supply in three-phase motor inverters, powering gate drivers and MCU logic rails. IC Role / Device Role / Timing Role: High-reliability rectifier in flyback-derived auxiliary winding circuit; operates continuously at 65°C ambient with no derating. Use Value: 175°C TJMAX and 18°C/W RθJL allow sustained 1.5A operation without heatsink, reducing BOM count and board area. |
| LED Driver Snubber Network | Industrial PLC Power Input Stage |
Use Scenario: Snubber diode clamping inductive kickback from LED string current regulators using MOSFET switches. IC Role / Device Role / Timing Role: Fast clamp element absorbing energy during MOSFET turn-off; timing role governed by trr and CJ interaction with RC snubber. Use Value: 50pF CJ and 150ns trr enable precise snubber tuning to suppress >30MHz ringing without over-damping. | Use Scenario: Input rectification stage in DIN-rail mounted programmable logic controller power supplies handling 24VAC/230VAC inputs. IC Role / Device Role / Timing Role: General-purpose bridge leg component in full-wave rectifier configurations; polarity band ensures correct orientation in automated assembly. Use Value: Moisture sensitivity level 1 and JESD201 Class 2 whisker resistance ensure zero field failures after 10+ years of continuous operation in factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06U (STMicroelectronics) | 1A rating, 600V VRRM, 75ns trr, DO-214AC package | Higher voltage rating but lower current; faster recovery but reduced surge capability (IFSM=30A) | Select when higher VRRM margin or lower trr is prioritized over IF and IFSM. |
| MBR15100CT (ON Semiconductor) | 15A dual common-cathode Schottky, TO-220AC package, 100V VR, no reverse recovery | Higher current, different topology (Schottky), through-hole mounting, no Qrr but higher VF drift with temperature | Select for higher current density and zero trr in non-isolated low-VIN applications where thermal mass permits TO-220 mounting. |
Compared with STTH1L06U and MBR15100CT, RS2BA provides optimal balance of 1.5A current, 100V rating, 150ns recovery, and DO-214AC SMT compatibility - making it preferred for space-constrained, medium-power industrial DC-DC designs requiring proven thermal and moisture resilience.
Availability
RS2BA is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching mode inverter auxiliary supplies, and LED driver snubber networks requiring stable component supply across production lifecycles.
Supply support for RS2BA 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 RS2x series was designed specifically for high-reliability, cost-optimized surface-mount rectification in mid-power switching power supplies - emphasizing thermal robustness, automated assembly readiness, and long-term parametric stability.
FAQ
What is the maximum junction temperature rating for RS2BA?
The RS2BA has a maximum junction temperature (TJMAX) of +175°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet Version I2304. This allows uninterrupted operation in high-ambient industrial environments when properly mounted on thermally enhanced PCBs. The RS2BA's 18°C/W junction-to-lead thermal resistance supports this rating under 1.5A DC load with adequate copper area.
Does RS2BA have a specified reverse recovery time, and under what test conditions?
Yes, RS2BA has a maximum reverse recovery time (trr) of 150ns, measured under conditions of IF = 0.5A, IR = 1.0A, and Irr = 0.25A, as confirmed in the Electrical Specifications section of the RS2AA–RS2MA datasheet. This value applies specifically to RS2BA and is distinct from higher-voltage variants like RS2JA (250ns) or RS2KA (500ns).
Is RS2BA RoHS compliant and halogen-free?
Yes, RS2BA is fully RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor documentation. The device uses green compound molding material and matte tin-plated leads, meeting both environmental and solderability standards (J-STD-002).
What is the marking code printed on the RS2BA device body?
The RS2BA is marked "RS2BA" on its molded plastic body, consistent with the ordering code and polarity indicator band shown in the Marking Diagram on page 5 of the datasheet. This marking is laser-etched or ink-printed for automated optical inspection (AOI) compatibility during SMT assembly.
What packaging option is available for RS2BA, and how many units does it contain?
RS2BA is supplied in DO-214AC (SMA) package on 7,500-unit tape-and-reel format, as specified in the ORDERING INFORMATION section. This packaging supports high-speed pick-and-place machines and meets industry-standard EIA-481 requirements for SMT automation, with no desiccant or dry pack required due to its moisture sensitivity level 1 rating.
RS2BA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2BA FAQ
1.How can I place an order for RS2BA through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2BA 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 RS2BA reliable?
The price and inventory of RS2BA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2BA is usually 5 days.
3.What payment methods are accepted for RS2BA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2BA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2BA?
RS2BA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2BA 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 RS2BA?
For technical support, including RS2BA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2BA requirements.
6.How does Aetrix verify that RS2BA is sourced from the original manufacturer or authorized distributors?
All RS2BA 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 RS2BA meets industry standards.
7.What is the process for return or replacement of RS2BA?
All RS2BA units undergo pre-shipment inspection (PSI). If there is an issue with RS2BA, 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 RS2BA part is unused and in its original packaging.
Return procedure for RS2BA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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