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Diodes Incorporated US1D-13
- Part No.:
- US1D-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
US1D-13.pdf
- Description:
- DIODE GEN PURP 200V 1A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:2,157
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Product details
Overview
US1D-13 from Diodes Incorporated is a 1.0A, 200V ultra-fast surface-mount rectifier diode in SMA package, featuring 50ns reverse recovery time, 1.7V forward voltage at 1.0A, and 30A non-repetitive surge capability - deployed in AC/DC front-end rectification for compact power adapters.
For engineers reviewing the US1D-13 datasheet, US1D-13 pinout, US1D-13 application, or US1D-13 equivalent, key selection criteria include peak repetitive reverse voltage (200V), thermal resistance (30°C/W), RMS reverse voltage rating (140V), cathode-band polarity marking, and RoHS-compliant matte tin plating for lead-free assembly.
Technical Context
This ultra-fast rectifier uses glass passivated die construction to achieve tight trr control (50ns) under IF = 0.5A / IR = 1.0A test conditions, enabling high-frequency switching in offline SMPS and PFC stages. Its 30°C/W junction-to-terminal thermal resistance supports 1.0A average current at +75°C terminal temperature with minimal heatsinking.
The device operates across –65°C to +150°C, with leakage limited to 5.0µA at 25°C and 100µA at 100°C under rated DC blocking voltage. Capacitance is 20pF at 1MHz and 4V reverse bias - suitable for noise-sensitive flyback snubber networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum peak repetitive reverse voltage before avalanche breakdown; sets safe operating margin for 115/230VAC input designs. |
| IO @ TT=75°C | 1.0 A - Average rectified output current derated to terminal temperature; defines continuous conduction capability without forced cooling. |
| trr | 50 ns - Reverse recovery time measured at IF=0.5A, IR=1.0A; enables operation up to ~200kHz without excessive switching loss. |
| VFM @ IF=1.0A | 1.7 V - Forward voltage drop determining conduction loss; contributes ~1.7W dissipation at full load. |
| RθJT | 30 °C/W - Junction-to-terminal thermal resistance; allows direct PCB copper pad thermal path design without discrete heatsink. |
| IFSM | 30 A - Non-repetitive surge rating for 8.3ms half-sine; withstands cold-start inrush in unregulated AC/DC supplies. |
Pinout & Package
SMA (DO-214AC) surface-mount package with molded plastic case (UL 94V-0), cathode band polarity marking, and matte tin–plated terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point during forward conduction | Connected to AC line or transformer secondary; must handle full surge current and thermal stress. |
| Cathode | Output current exit point during forward conduction | Connected to bulk capacitor or PFC stage input; marked by visible band for automated optical inspection. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enables stable trr and low leakage over temperature and lifetime; eliminates need for conformal coating in humid environments. |
| Ultra-fast recovery (50ns) | Reduces reverse recovery charge (Qrr) to <15nC, minimizing EMI and switching losses in 100–200kHz flyback converters. |
| Lead-free & halogen-free | Meets IPC-J-STD-020 Level 1 moisture sensitivity and EU RoHS 2011/65/EU; compatible with standard reflow profiles. |
| Automated assembly optimized | Standard SMA footprint (JEDEC DO-214AC) ensures compatibility with pick-and-place nozzles and AOI systems. |
Applications
| AC/DC Power Adapters | LED Driver Input Rectification |
|---|---|
Use Scenario: 5–24W universal-input wall adapters powering IoT sensors and USB peripherals. IC Role / Device Role / Timing Role: Primary-side ultra-fast rectifier converting 115/230VAC to pulsating DC before bulk capacitor smoothing. Use Value: 50ns trr minimizes switching loss and audible noise vs. standard recovery diodes; 200V VRRM provides 2× safety margin on 230VAC peaks. | Use Scenario: Constant-current LED drivers for commercial downlights with passive PFC. IC Role / Device Role / Timing Role: Bridge or single-diode rectifier in valley-fill or quasi-resonant topologies operating at 100–120Hz line frequency. Use Value: 1.0A IO rating sustains LED driver standby and dimming currents; 30A IFSM handles lamp hot-plug surges. |
| Industrial Control Power Supplies | USB-C PD Front-End Protection |
Use Scenario: 12V/24V auxiliary power rails in PLC I/O modules exposed to wide ambient temperatures. IC Role / Device Role / Timing Role: Input rectifier feeding isolated DC/DC converter with -40°C to +85°C operating range requirement. Use Value: -65°C to +150°C TJ range ensures reliability in unventilated enclosures; 30°C/W RθJT simplifies thermal layout on 2-layer PCBs. | Use Scenario: Secondary-side rectification in 20–60W USB-C PD chargers with GaN FETs and active clamp flyback. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in high-efficiency designs where trr <75ns avoids cross-conduction loss. Use Value: 20pF CT reduces high-frequency ringing when paired with fast-switching GaN; 1.7V VFM balances conduction loss vs. SiC alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 600V VRRM, 50ns trr, 1.05V VFM @ 1A, SMA package | Higher voltage rating suits 230VAC-only or 3-phase inputs; lower VFM improves light-load efficiency | Select when system requires >400V blocking or tighter thermal budget at 100°C ambient |
| ES1D-E3/61T | 200V VRRM, 35ns trr, 1.7V VFM @ 1A, SMA package, AEC-Q101 qualified | Automotive-grade qualification enables use in vehicle accessory chargers and body electronics | Select for automotive applications requiring PPAP documentation and extended temperature validation |
Compared with STTH1L06S and ES1D-E3/61T, US1D-13 offers optimal balance of cost, 200V rating, and 50ns trr for universal-input consumer power supplies - while ES1D-E3/61T adds automotive qualification and STTH1L06S extends voltage headroom at slightly higher forward drop.
Availability
US1D-13 is available at Aetrix Electronics and suitable for AC/DC power adapters, LED driver input rectification, and industrial control power supplies requiring stable component supply and long-term manufacturability.
Supply support for US1D-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The US1x series belongs to Diodes' ultra-fast rectifier product line, engineered specifically for high-efficiency, high-frequency AC/DC conversion in space-constrained consumer and industrial power supplies.
FAQ
What is the maximum junction temperature for US1D-13?
The US1D-13 has an operating junction temperature range of –65°C to +150°C. Its thermal resistance is specified as 30°C/W junction-to-terminal, meaning that at 1.0A forward current and 1.7V drop (1.7W dissipation), the junction rises 51°C above terminal temperature - allowing safe operation up to +99°C ambient with adequate PCB copper area.
Is US1D-13 suitable for synchronous rectification circuits?
No - US1D-13 is a unidirectional silicon PN junction diode, not a MOSFET-based synchronous rectifier. It lacks gate control and cannot be actively turned off. It is used only in conventional diode rectification or freewheeling roles where passive conduction suffices.
Does US1D-13 meet automotive qualification standards?
No - US1D-13 is not AEC-Q101 qualified. While it operates across –65°C to +150°C, it lacks the process controls, testing, and documentation required for automotive applications. For such use cases, consider ES1D-E3/61T or similar AEC-Q101–rated alternatives.
How does US1D-13 compare to standard recovery rectifiers like 1N4007?
US1D-13 offers 50ns reverse recovery time versus 30µs for 1N4007 - a 600× improvement - enabling efficient operation above 20kHz. It also features lower forward voltage (1.7V vs. ~1.1V at 1A, but with far superior dynamic performance), smaller SMA package, and RoHS-compliant plating, making it suitable for modern switch-mode power supplies where 1N4007 would cause excessive loss and EMI.
US1D-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
US1D-13 FAQ
1.How can I place an order for US1D-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for US1D-13 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 US1D-13 reliable?
The price and inventory of US1D-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for US1D-13 is usually 5 days.
3.What payment methods are accepted for US1D-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for US1D-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for US1D-13?
US1D-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your US1D-13 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 US1D-13?
For technical support, including US1D-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your US1D-13 requirements.
6.How does Aetrix verify that US1D-13 is sourced from the original manufacturer or authorized distributors?
All US1D-13 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 US1D-13 meets industry standards.
7.What is the process for return or replacement of US1D-13?
All US1D-13 units undergo pre-shipment inspection (PSI). If there is an issue with US1D-13, 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 US1D-13 part is unused and in its original packaging.
Return procedure for US1D-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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