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Vishay General Semiconductor - Diodes Division S1D/1
- Part No.:
- S1D/1
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
S1D/1.pdf
- Description:
- DIODE GEN PURP 200V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,616
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Product details
Overview
S1D/1 from Vishay General Semiconductor is a surface-mount glass passivated silicon rectifier diode in SMA (DO-214AC) package, rated for 200 V maximum recurrent peak reverse voltage (VRRM), 1.0 A average forward current (IF(AV)), and 1.1 V forward voltage drop at 1.0 A. It serves as a general-purpose power rectifier in DC power supplies and freewheeling paths in automotive and industrial converters.
For engineers reviewing the S1D/1 datasheet, S1D/1 pinout, S1D/1 application, or S1D/1 equivalent, key selection criteria include its 200 V blocking capability, low 1.1 V VF, 1.8 µs typical reverse recovery time, AEC-Q101 qualification option, and compatibility with automated SMT placement on standard PCB land patterns.
Technical Context
The S1D/1 operates as a single-junction, unidirectional silicon rectifier with glass-passivated chip construction ensuring stable junction integrity under thermal cycling and humidity stress. Its 175 °C maximum junction temperature and MSL Level 1 rating support high-reliability reflow assembly without preconditioning.
Designed for low-loss rectification, it delivers 1.1 V forward voltage at 1.0 A and exhibits only 1.0 µA maximum reverse leakage at 25 °C and rated VDC, enabling efficient operation in 12–48 V DC systems where conduction loss and standby leakage are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports rectification in 12–24 V AC/DC adapters and 24–48 V industrial power rails without breakdown risk |
| IF(AV) | 1.0 A - continuous DC output capability suitable for mid-power SMPS secondary-side rectification |
| VF @ 1.0 A | 1.1 V - reduces conduction loss to ~1.1 W per diode, minimizing thermal load in compact layouts |
| IR @ 25 °C | 1.0 µA - ensures negligible standby current in battery-backed or energy-sensitive circuits |
| trr | 1.8 µs - enables use in medium-frequency flyback and forward converters up to ~100 kHz |
| TJ(max) | 175 °C - allows operation in under-hood automotive environments and sealed industrial enclosures |
| RθJA | 75 °C/W - requires ≥5.0 mm × 5.0 mm copper pad for thermal management at full IF(AV) |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to AC input or switching node; must withstand surge current up to 30 A (8.3 ms half-sine) |
| Cathode | Forward current exit terminal | Connected to output rail or ground return; polarity marking ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Prevents moisture ingress and metallization corrosion, extending lifetime in humid or automotive under-hood conditions |
| MSL Level 1 rating | Enables direct placement onto PCB without baking or dry-pack handling-reduces manufacturing overhead |
| AEC-Q101 qualified option | Available as S1DHE3/_X variant for automotive applications requiring validated reliability per JESD22-A108 |
| Low profile SMA package | Height ≤ 2.29 mm enables use in space-constrained consumer electronics and thin power modules |
Applications
| AC/DC Adapter Rectification | Automotive DC-DC Converter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in 12 V/1 A wall adapters and USB-C PD auxiliary supplies. IC Role / Device Role / Timing Role: Unidirectional current steering diode converting transformer AC output to regulated DC. Use Value: 1.1 V VF minimizes heat generation in enclosed plastic housings; 200 V VRRM provides margin against reflected voltage spikes. |
Use Scenario: Freewheeling path in 12 V → 5 V buck converters for infotainment ECUs. IC Role / Device Role / Timing Role: Flyback diode clamping inductive kickback during MOSFET off-time. Use Value: 1.8 µs trr prevents cross-conduction losses; 175 °C TJ(max) sustains operation near engine control units. |
| Industrial Motor Drive Snubbing | Telecom Power Supply Output Stage |
Use Scenario: Clamp diode in IGBT gate drive snubber networks for 24 V servo drives. IC Role / Device Role / Timing Role: Transient voltage suppression path absorbing turn-off energy. Use Value: 5 mJ EAS rating handles repetitive inductive energy dumps; glass passivation resists chemical exposure in factory environments. |
Use Scenario: Output rectifier in 48 V telecom rectifier modules feeding distributed DC bus. IC Role / Device Role / Timing Role: Main DC output diode delivering clean, low-noise 48 V supply. Use Value: 1.0 µA IR at 25 °C preserves system efficiency during standby; RoHS-compliant E3/M3 variants meet telco compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS1H100S | 100 V VRRM, Schottky architecture, 0.85 V VF, no reverse recovery (trr = 0) | Better efficiency below 100 V; unsuitable above 100 V due to lower blocking rating | Select when operating voltage ≤ 70 V and ultra-low VF is prioritized over surge robustness |
| ON Semi MUR120 | 200 V VRRM, ultrafast recovery (trr = 75 ns), higher VF = 1.3 V, TO-220 package | Superior switching speed for >200 kHz designs; requires through-hole mounting and heatsinking | Choose for high-frequency PFC or resonant converters where layout permits larger footprint and thermal mass |
Compared with STPS1H100S and MUR120, the S1D/1 offers balanced performance: sufficient 200 V rating for 48 V systems, moderate 1.8 µs trr for cost-sensitive 50–100 kHz designs, and SMA packaging compatible with high-volume SMT lines-making it optimal for commercial and automotive-grade power supplies where reliability, size, and manufacturability are jointly critical.
Availability
S1D/1 is available at Aetrix Electronics and suitable for AC/DC adapters, automotive DC-DC converters, and telecom power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for S1D/1 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade qualification.
The S1D/1 belongs to Vishay's S1x family of surface-mount glass-passivated rectifiers, engineered for cost-effective, high-yield power conversion in consumer, industrial, and automotive applications demanding consistent thermal and electrical performance.
FAQ
What is the maximum junction temperature rating for the S1D/1?
The S1D/1 has a maximum junction temperature (TJ(max)) of +175 °C, enabling reliable operation in high-ambient environments such as under-hood automotive locations or sealed industrial enclosures. This rating is validated per JEDEC standards and supported by its glass-passivated junction and thermally optimized SMA package. The S1D/1 must be mounted on ≥5.0 mm × 5.0 mm copper pads to achieve this rating at full 1.0 A load.
Is the S1D/1 AEC-Q101 qualified?
The base S1D/1 is not AEC-Q101 qualified, but Vishay offers the S1DHE3/_X variant-identical electrically and mechanically-which is fully AEC-Q101 qualified for automotive applications. The HE3 suffix denotes RoHS-compliant construction with automotive reliability testing, including temperature cycling, HTRB, and UHAST. Customers requiring automotive qualification must specify S1DHE3 with appropriate revision code (e.g., S1DHE3_A).
What is the reverse recovery time (trr) of the S1D/1 and how does it affect circuit design?
The S1D/1 has a typical reverse recovery time (trr) of 1.8 µs, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value makes it suitable for medium-frequency switching applications up to ~100 kHz, such as flyback and forward converters. Designers should account for associated switching losses and potential ringing in high-dV/dt environments; for >200 kHz operation, an ultrafast or Schottky alternative may be preferred.
Does the S1D/1 have a halogen-free option?
Yes-the S1DM3/61T and S1DHM3/_X variants are halogen-free, RoHS-compliant, and meet IEC 61249-2-21 requirements. The M3 suffix indicates halogen-free molding compound and terminations, while HM3 adds AEC-Q101 qualification. These versions share identical electrical specifications and SMA package dimensions with the standard S1D/1, allowing direct substitution where environmental compliance is mandated.
What is the thermal resistance from junction to ambient (RθJA) for the S1D/1?
The S1D/1 has a typical RθJA of 75 °C/W when mounted on a 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad area on a standard FR-4 PCB. This value assumes no internal plane layers and natural convection cooling. To maintain TJ ≤ 125 °C at 1.0 A IF(AV), the board must provide adequate copper area and airflow; adding thermal vias or using inner-layer copper pours can further reduce effective RθJA. The S1D/1 datasheet specifies RθJL = 27 °C/W to lead for additional thermal modeling.
S1D/1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.8 µs
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 V
- Capacitance @ Vr, F:
- 12pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S1D/1 FAQ
1.How can I place an order for S1D/1 through Aetrix?
Please submit a Request for Quotation (RFQ) for S1D/1 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 S1D/1 reliable?
The price and inventory of S1D/1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1D/1 is usually 5 days.
3.What payment methods are accepted for S1D/1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1D/1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S1D/1?
S1D/1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S1D/1 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 S1D/1?
For technical support, including S1D/1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1D/1 requirements.
6.How does Aetrix verify that S1D/1 is sourced from the original manufacturer or authorized distributors?
All S1D/1 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 S1D/1 meets industry standards.
7.What is the process for return or replacement of S1D/1?
All S1D/1 units undergo pre-shipment inspection (PSI). If there is an issue with S1D/1, 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 S1D/1 part is unused and in its original packaging.
Return procedure for S1D/1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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