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Taiwan Semiconductor Corporation RS1D-T
- Part No.:
- RS1D-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS1D-T.pdf
- Description:
- 150NS, 1A, 200V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:2,707
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Product details
Overview
RS1D-T from Taiwan Semiconductor is a 1A, 200V fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 150 ns reverse recovery time, 1.3 V max forward voltage at 1 A, and 30 A peak surge current - used in DC-DC converters and switching-mode power supplies for high-efficiency AC/DC and DC/DC conversion.
For engineers reviewing the RS1D-T datasheet, RS1D-T pinout, RS1D-T application, or RS1D-T equivalent, key selection criteria include repetitive peak reverse voltage (200 V), thermal resistance (105 °C/W junction-to-ambient), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and SMA package compatibility with automated placement.
Technical Context
The RS1D-T employs a glass-passivated single-die silicon junction optimized for fast switching in high-frequency switching power supplies. Its 150 ns trr and low VF enable reduced switching losses in SMPS topologies operating up to several hundred kHz.
Thermally, it supports continuous operation up to 150 °C junction temperature with RθJA = 105 °C/W and RθJC = 32 °C/W, and meets JESD201 Class 1A whisker resistance and UL 94V-0 flammability requirements for reliable surface-mount deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse voltage the device blocks without breakdown |
| IF | 1 A - continuous average forward current rating at TA = 25°C |
| trr | 150 ns - reverse recovery time enabling efficient operation in ≥100 kHz switching circuits |
| VF (max) | 1.3 V @ 1 A, 25°C - low conduction loss contributing to >90% efficiency in compact DC-DC stages |
| IFSM | 30 A - peak non-repetitive surge current tolerance for inrush/load-transient protection |
| RθJA | 105 °C/W - thermal resistance defining required PCB copper area and airflow for thermal management |
| IR (max) | 5 µA @ 25°C - low leakage ensuring minimal standby power loss in offline adapters |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode-indicated band; two-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 1A whisker resistance.
| 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 | Marked by band; connects to output rail or filter capacitor positive terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and humidity resistance in industrial environments |
| Fast recovery (150 ns) | Reduces switching losses and EMI in high-frequency SMPS designs |
| Moisture sensitivity Level 1 | Enables direct use without baking, simplifying SMT line logistics |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and global environmental directives |
| UL 94V-0 molding compound | Provides flame-retardant encapsulation for safety-critical power supplies |
Applications
| DC-DC Converters | Switching Mode Inverters |
|---|---|
Use Scenario: Isolated buck-boost and flyback converters in telecom power modules. IC Role / Device Role / Timing Role: Output rectifier handling 1 A continuous current at 200 V blocking. Use Value: 150 ns trr minimizes dead-time losses and improves light-load efficiency. | Use Scenario: Low-power solar microinverters converting 40–60 V DC to 230 V AC. IC Role / Device Role / Timing Role: High-side freewheeling diode in half-bridge topology. Use Value: 30 A IFSM withstands inverter startup surges without derating. |
| Industrial AC-DC Adapters | Automotive LED Drivers |
Use Scenario: 12 V/1 A auxiliary power supply in PLC controllers. IC Role / Device Role / Timing Role: Secondary-side rectifier in discontinuous conduction mode (DCM) flyback. Use Value: 1.3 V VF reduces conduction loss, enabling compact heatsink-free design. | Use Scenario: Constant-current LED driver for cabin lighting in 12 V automotive systems. IC Role / Device Role / Timing Role: Freewheeling path for inductive current during PWM dimming. Use Value: -55°C to +150°C TJ range ensures operation under hood temperature 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 |
|---|---|---|---|
| STTH1R02U (STMicroelectronics) | Same 200 V VRRM, 1 A IF, but 120 ns trr and 1.15 V VF (typ); DO-214AC package | Slightly faster recovery and lower VF improve efficiency in >200 kHz designs | Preferred where tighter trr tolerance and lower conduction loss are prioritized over cost |
| ES1D (ON Semiconductor) | 200 V VRRM, 1 A IF, 150 ns trr, but VF = 1.7 V (max); same DO-214AC package | Higher VF increases conduction loss, limiting use in thermally constrained layouts | Acceptable for cost-sensitive, lower-frequency (<100 kHz) applications with margin on thermal design |
Compared with STTH1R02U and ES1D, the RS1D-T delivers balanced performance: lower VF than ES1D and higher surge rating than STTH1R02U, making it optimal for mid-frequency industrial SMPS requiring robustness and manufacturability.
Availability
RS1D-T is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and industrial AC-DC adapters requiring stable component supply, J-STD-020 Level 1 moisture handling, and RoHS-compliant manufacturing.
Supply support for RS1D-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, serving industrial, computing, and consumer markets since 1979.
The RS1D-T belongs to TSC's RS1x-T fast recovery rectifier family, designed specifically for high-efficiency, surface-mount switching power supplies where fast trr, low VF, and automated assembly compatibility are critical.
FAQ
What is the maximum junction temperature rating for the RS1D-T?
The RS1D-T has a maximum junction temperature (TJ) of +150°C, with a storage temperature range of -55°C to +150°C. This rating allows operation in demanding industrial environments when mounted on adequately sized PCB copper areas per its RθJA = 105°C/W specification. Thermal derating curves in the RS1D-T datasheet define safe current limits above 25°C ambient.
Does the RS1D-T require pre-baking before reflow soldering?
No, the RS1D-T does not require pre-baking prior to reflow soldering because it is rated at Moisture Sensitivity Level 1 per J-STD-020 - the highest reliability level indicating unlimited floor life at ≤30°C/60% RH. This eliminates bake steps in standard SMT lines, reducing process complexity and cost for the RS1D-T.
What is the reverse recovery time (trr) specification for the RS1D-T?
The RS1D-T has a reverse recovery time (trr) of 150 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. This value is confirmed in the "ELECTRICAL SPECIFICATIONS" table of the RS1D-T datasheet and enables efficient operation in switching power supplies operating up to ~500 kHz.
Is the RS1D-T RoHS and halogen-free compliant?
Yes, the RS1D-T is fully RoHS compliant and halogen-free per IEC 61249-2-21. The device uses matte tin-plated leads and a UL 94V-0 compliant molding compound, satisfying environmental requirements for export and end-product certification including CE, WEEE, and China RoHS for the RS1D-T.
What package type does the RS1D-T use, and what are its key mechanical features?
The RS1D-T uses the DO-214AC (SMA) surface-mount package. Key mechanical features include polarity indicated by a cathode band, J-STD-002 solderable matte tin leads, JESD201 Class 1A whisker resistance, UL 94V-0 flammability rating, and approximate weight of 0.060 g - all documented in the RS1D-T mechanical data section.
RS1D-T 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):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1D-T FAQ
1.How can I place an order for RS1D-T through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1D-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 RS1D-T reliable?
The price and inventory of RS1D-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1D-T is usually 5 days.
3.What payment methods are accepted for RS1D-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1D-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1D-T?
RS1D-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1D-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 RS1D-T?
For technical support, including RS1D-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1D-T requirements.
6.How does Aetrix verify that RS1D-T is sourced from the original manufacturer or authorized distributors?
All RS1D-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 RS1D-T meets industry standards.
7.What is the process for return or replacement of RS1D-T?
All RS1D-T units undergo pre-shipment inspection (PSI). If there is an issue with RS1D-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 RS1D-T part is unused and in its original packaging.
Return procedure for RS1D-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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