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Diodes Incorporated S2KDF-13
- Part No.:
- S2KDF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
S2KDF-13.pdf
- Description:
- DIODE GEN PURP 800V 2A DFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:4,239
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Product details
Overview
S2KDF-13 from Diodes Incorporated is a 2.0A, 800V glass passivated surface-mount rectifier in the D-FLAT package, designed for standard AC-to-DC conversion in power supplies and adapters. It delivers 1.1V max forward voltage at 2A/25°C, 5μA max reverse leakage at 800V, and withstands 55A non-repetitive surge current - enabling reliable operation in LED lighting drivers and switching mode power supplies.
For engineers reviewing the S2KDF-13 datasheet, S2KDF-13 pinout, S2KDF-13 application, or S2KDF-13 equivalent, key selection criteria include peak repetitive reverse voltage (800V), average forward current (2.0A), thermal resistance (23°C/W junction-to-terminal), AEC-Q101 qualification status, and D-FLAT low-profile mechanical footprint (max height <1.1mm).
Technical Context
This device is a single-phase, silicon planar junction rectifier with glass passivation for enhanced moisture and contamination resistance. Its D-FLAT package uses a copper leadframe with matte tin annealed finish, supporting high thermal conductivity and RoHS-compliant solderability per MIL-STD-202.
Rated for operation from –55°C to +150°C, it exhibits 8pF typical junction capacitance at 4V reverse bias and 1MHz, and requires derating to 80% of rated current under capacitive load conditions per datasheet guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum repetitive reverse blocking voltage before breakdown |
| IO | 2.0 A - Average forward rectified current at 25°C ambient on FR-4 PCB |
| VF Max | 1.1 V at IF = 2A, TJ = 25°C - Directly impacts conduction loss and thermal design margin |
| IR Max | 5 μA at VR = 800V, TJ = 25°C - Determines standby power loss in high-voltage hold-off stages |
| IFSM | 55 A (8.3ms half-sine) - Supports inrush current handling in AC-input front ends |
| RθJT | 23 °C/W - Enables accurate junction temperature estimation from terminal temperature measurement |
| TJ Range | –55°C to +150°C - Validated for automotive under-hood and industrial ambient environments |
Pinout & Package
The S2KDF-13 uses the D-FLAT surface-mount package (case outline per Diodes Inc. spec), measuring 4.65 mm × 2.80 mm × <1.1 mm, with cathode polarity indicated by a band on the top surface. Terminals are matte tin annealed over copper leadframe, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | AC input / positive half-cycle entry point | Connected to transformer secondary or bridge input; carries full forward current during conduction |
| Cathode | DC output / rectified voltage node | Feeds bulk capacitor or downstream regulator; marked with visible band for orientation verification |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die construction | Prevents surface degradation under humidity and bias stress, extending lifetime in humid environments |
| 55A non-repetitive surge rating | Withstands cold-start inrush without failure in SMPS and AC-DC adapters |
| D-FLAT low-profile package (height <1.1mm) | Enables ultra-thin power supply designs and compatibility with automated optical inspection (AOI) |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Halogen- and antimony-free "Green" compound | Meets IEC 61249-2-21 requirements with Br+Cl <1500 ppm and Sb <1000 ppm |
Applications
| Switching Mode Power Supplies | LED Lighting Drivers |
|---|---|
Use Scenario: Primary-side rectification in offline flyback converters delivering 10–65W output. IC Role / Device Role / Timing Role: High-voltage AC input rectifier converting 85–265VAC to pulsating DC prior to energy storage. Use Value: 800V VRRM ensures margin against line surges; 2.0A IO supports continuous conduction mode up to 30W with minimal heatsinking. | Use Scenario: Secondary-side rectification in constant-current LED drivers for commercial downlights. IC Role / Device Role / Timing Role: Output rectifier in isolated buck-boost or flyback topology feeding LED string. Use Value: Low VF (≤0.95V @2A/25°C) reduces conduction loss and improves driver efficiency above 88%. |
| AC-DC Adapters | Inverters (Low-Power DC-AC) |
Use Scenario: Input-stage rectification in universal-input (90–264VAC) wall adapters for consumer electronics. IC Role / Device Role / Timing Role: Bridge input diode or discrete rectifier replacing full-wave bridge in cost-optimized designs. Use Value: AEC-Q101 qualification enables use in industrial-grade adapters requiring extended lifetime and thermal robustness. | Use Scenario: DC bus freewheeling path in micro-inverters for solar panel-level conversion. IC Role / Device Role / Timing Role: Anti-parallel freewheeling diode across MOSFET switches in H-bridge output stage. Use Value: 55A IFSM handles motor or reactive load commutation spikes; 8pF CT minimizes switching noise coupling. |
Availability
S2KDF-13 is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC-DC adapters requiring stable component supply with automotive-grade reliability and RoHS compliance.
Supply support for S2KDF-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, manufacturing, and sales operations across Asia, Europe, and North America.
The S2KDF-13 belongs to Diodes' high-reliability rectifier product line, engineered for robust AC-DC conversion in automotive, industrial, and consumer power applications where thermal stability and surge resilience are critical.
FAQ
What is the maximum operating temperature for the S2KDF-13?
The S2KDF-13 has a specified operating junction temperature range of –55°C to +150°C. Its thermal resistance junction-to-terminal is 23°C/W, allowing accurate thermal modeling when mounted on appropriate PCB copper area. Ambient storage temperature matches this range, ensuring long-term reliability in harsh environments.
Is the S2KDF-13 pin-compatible with other D-FLAT rectifiers?
Yes - the S2KDF-13 shares the standard D-FLAT two-terminal footprint (4.65 mm × 2.80 mm) and cathode-band polarity marking with Diodes' S2MDF, S2ADF, and S2JDF families. Pad layout dimensions match JEDEC MS-012 variant, enabling direct PCB reuse across 2A/600–1000V rectifier variants.
Does the S2KDF-13 meet automotive qualification standards?
Yes - the S2KDF-13 is explicitly qualified to AEC-Q101 Rev. D for stress testing including HTGB, HTRB, TCT, and ESD. An automotive-grade variant (S2KDFQ) is also offered with identical electrical specs and additional PPAP documentation support for Tier-1 suppliers.
How does the glass passivation improve reliability compared to epoxy-passivated rectifiers?
Glass passivation provides superior barrier protection against moisture ingress, ionic contamination, and thermal cycling-induced delamination. Unlike organic epoxies, it maintains dielectric integrity beyond 150°C and shows no measurable parameter shift after 1000 hours at 85°C/85% RH - critical for long-life industrial and automotive deployments.
S2KDF-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 2-SMD, Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 2 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 8pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D-Flat
- Operating Temperature - Junction:
- -55°C ~ 150°C
S2KDF-13 FAQ
1.How can I place an order for S2KDF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for S2KDF-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 S2KDF-13 reliable?
The price and inventory of S2KDF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2KDF-13 is usually 5 days.
3.What payment methods are accepted for S2KDF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2KDF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2KDF-13?
S2KDF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2KDF-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 S2KDF-13?
For technical support, including S2KDF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2KDF-13 requirements.
6.How does Aetrix verify that S2KDF-13 is sourced from the original manufacturer or authorized distributors?
All S2KDF-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 S2KDF-13 meets industry standards.
7.What is the process for return or replacement of S2KDF-13?
All S2KDF-13 units undergo pre-shipment inspection (PSI). If there is an issue with S2KDF-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 S2KDF-13 part is unused and in its original packaging.
Return procedure for S2KDF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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