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Taiwan Semiconductor Corporation RS1DH
- Part No.:
- RS1DH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS1DH.pdf
- Description:
- DIODE GEN PURP 200V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,500
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Product details
Overview
RS1DH from Taiwan Semiconductor is a 1A, 200V repetitive peak reverse voltage (VRRM) fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 150 ns reverse recovery time (trr), 1.3 V max forward voltage at 1 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the RS1DH datasheet, RS1DH pinout, RS1DH application, or RS1DH equivalent, key selection factors include its 200 V VRRM, 150 ns trr, 30 A IFSM, junction temperature range of –55 °C to +175 °C, and suitability for DC–DC converters, snubber circuits, and automotive lighting systems.
Technical Context
The RS1DH employs a glass-passivated single-die silicon junction optimized for fast switching and high thermal reliability. Its 150 ns reverse recovery time enables efficient operation in high-frequency switching topologies up to several hundred kHz.
Thermal performance is defined by RθJA = 105 °C/W and RθJL = 30 °C/W, supporting continuous 1 A conduction at ambient temperatures up to 85 °C with standard PCB copper area. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse blocking voltage; defines usable input voltage range in flyback or boost stages |
| trr | 150 ns - Measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables low-loss switching in 100–500 kHz SMPS |
| VF (max) | 1.3 V @ IF = 1 A, TJ = 25 °C - Directly impacts conduction loss and thermal rise in continuous conduction mode |
| IFSM | 30 A - Peak surge rating for 8.3 ms half-sine; supports inrush current handling in power supplies |
| TJ (max) | +175 °C - Enables operation in under-hood automotive environments without derating below 1 A |
| CJ | 10 pF @ 1 MHz, VR = 4 V - Low junction capacitance reduces switching noise and EMI in high-dv/dt applications |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode indicated by molded band; matte tin-plated leads compliant with J-STD-002 solderability; weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., ground or source); requires adequate copper pour for thermal dissipation |
| Cathode | Current exit point during forward conduction; polarity marker via band | Connected to higher-potential node (e.g., output rail or switch node); band orientation critical for automated placement verification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and UHAST per stress test conditions |
| Glass passivated junction | Provides stable leakage performance and long-term stability under humidity and thermal stress |
| Fast recovery (150 ns) | Reduces switching losses and associated heat generation compared to general-purpose rectifiers (>500 ns) |
| Moisture sensitivity level 1 | Enables direct placement without baking; eliminates production delay and moisture-related popcorning risk |
| Halogen-free & RoHS compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing |
Applications
| DC–DC Converter | Automotive Lighting |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12 V–48 V buck-boost or flyback converters for ADAS modules. IC Role / Device Role / Timing Role: Unidirectional current steering diode enabling synchronous or quasi-resonant topology operation. Use Value: 150 ns trr minimizes reverse recovery loss, improving efficiency by ~1.2% over 500 ns alternatives at 250 kHz switching. | Use Scenario: LED driver output rectification and transient suppression in headlamp and DRL circuits. IC Role / Device Role / Timing Role: Output freewheeling and snubbing diode handling load dump transients up to ±100 V. Use Value: AEC-Q101 qualification and 175 °C TJ(max) ensure uninterrupted operation during engine bay thermal soak at 125 °C ambient. |
| Snubber Circuit | General Purpose Rectification |
Use Scenario: RCD clamp network in MOSFET-based flyback or forward converters. IC Role / Device Role / Timing Role: Fast-recovery path for stored energy dissipation during switch turn-off. Use Value: Low CJ (10 pF) and controlled trr reduce ringing amplitude and EMI generation versus slower alternatives. | Use Scenario: Input bridge or output rectification in industrial power supplies and AC adapters. IC Role / Device Role / Timing Role: General-purpose unidirectional current control with robust surge capability. Use Value: 30 A IFSM withstands repeated line surges; DO-214AC footprint ensures compatibility with legacy SMA layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02 | VRRM = 200 V, trr = 150 ns, but VF = 1.15 V typ (lower conduction loss); TO-277 package (3-pin SMD, no leaded variant) | Requires PCB redesign due to different footprint and thermal pad layout; better suited for high-efficiency consumer PSUs | Select when lower VF outweighs layout change cost and AEC-Q101 is not required |
| ON Semi MUR120 | VRRM = 200 V, trr = 75 ns (faster), but not AEC-Q101 qualified; DO-41 through-hole package | Not suitable for automated SMT lines or automotive under-hood use; limited to industrial benchtop equipment | Select only for non-automotive, through-hole prototyping where ultra-fast recovery is prioritized over qualification |
Compared with STTH1R02 and MUR120, RS1DH uniquely combines AEC-Q101 qualification, DO-214AC SMT compatibility, and balanced 150 ns trr/1.3 V VF performance-making it the preferred choice for production automotive and industrial SMT power designs requiring zero rework risk.
Availability
RS1DH is available at Aetrix Electronics and suitable for DC–DC converters, automotive lighting systems, and snubber circuits requiring stable component supply, automotive-grade traceability, and long-term lifecycle support.
Supply support for RS1DH 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 devices, and automotive-qualified components.
The RS1xH series was developed specifically for high-reliability automotive and industrial power conversion, emphasizing fast recovery, high-temperature operation, and AEC-Q101 compliance in compact DO-214AC packaging.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for RS1DH?
The RS1DH has a VRRM rating of 200 V, verified per Taiwan Semiconductor's B2304 datasheet. This value defines the highest instantaneous reverse voltage the device can block repeatedly without breakdown. It is critical for selecting appropriate input voltage margins in flyback, boost, and snubber applications. Exceeding 200 V risks avalanche failure and permanent degradation of the RS1DH junction.
Is RS1DH qualified for automotive applications?
Yes, RS1DH is AEC-Q101 qualified per the official Taiwan Semiconductor documentation. This includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and unbiased highly accelerated stress test (UHAST). The RS1DH qualification confirms suitability for under-hood automotive systems such as LED drivers and body control modules where RS1DH operates reliably across –55 °C to +175 °C junction temperatures.
What is the reverse recovery time (trr) of RS1DH and how is it measured?
The RS1DH reverse recovery time is 150 ns, measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, per JEDEC Test Method JESD24-14. This parameter reflects the time required for the RS1DH to transition from forward conduction to reverse blocking. Its 150 ns trr enables efficient operation in switching power supplies operating up to 500 kHz without excessive switching loss.
Does RS1DH have a halogen-free and RoHS-compliant construction?
Yes, RS1DH uses halogen-free molding compound and complies with RoHS Directive 2011/65/EU. Taiwan Semiconductor confirms this in the "Features" section of the RS1DH datasheet (Version B2304), listing both "RoHS Compliant" and "Halogen-free" explicitly. These attributes ensure RS1DH meets environmental compliance requirements for global electronics manufacturing, including WEEE and China RoHS reporting obligations.
What is the thermal resistance from junction to ambient (RθJA) for RS1DH in standard mounting?
The RS1DH has a typical junction-to-ambient thermal resistance (RθJA) of 105 °C/W when mounted on a standard FR-4 PCB with minimum recommended copper area (per DO-214AC footprint). This value assumes natural convection and no heatsink. For sustained 1 A operation at elevated ambient temperatures, designers must verify board-level thermal design using this RθJA to ensure the RS1DH junction stays within its –55 °C to +175 °C limit.
RS1DH 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:
- 10pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1DH FAQ
1.How can I place an order for RS1DH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1DH 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 RS1DH reliable?
The price and inventory of RS1DH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1DH is usually 5 days.
3.What payment methods are accepted for RS1DH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1DH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1DH?
RS1DH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1DH 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 RS1DH?
For technical support, including RS1DH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1DH requirements.
6.How does Aetrix verify that RS1DH is sourced from the original manufacturer or authorized distributors?
All RS1DH 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 RS1DH meets industry standards.
7.What is the process for return or replacement of RS1DH?
All RS1DH units undergo pre-shipment inspection (PSI). If there is an issue with RS1DH, 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 RS1DH part is unused and in its original packaging.
Return procedure for RS1DH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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