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Diodes Incorporated DFLF1800-13
- Part No.:
- DFLF1800-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLF1800-13.pdf
- Description:
- DIODE GP 800V 1A POWERDI123
- Quantity:
- Payment:
- Shipping:
Inventory:2,942
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Product details
Overview
DFLF1800-13 from Diodes Incorporated is a 1.0A, 800V surface-mount fast recovery rectifier in the PowerDI123 package, featuring 500ns reverse recovery time, 1.35V max forward voltage at 1.0A, and 10µA max reverse leakage at 800V/25°C. It serves as a primary-side output rectifier in compact AC-DC adapters and DC-DC converters requiring high efficiency and AEC-Q101 reliability.
For engineers reviewing the DFLF1800-13 datasheet, DFLF1800-13 pinout, DFLF1800-13 application, or DFLF1800-13 equivalent, key selection criteria include its 800V VRRM rating, 25A non-repetitive surge capability, thermal resistance of 24°C/W junction-to-case, RoHS-compliant matte tin finish, and PowerDI123 footprint compatibility with automated SMT assembly.
Technical Context
This fast recovery rectifier employs a planar epitaxial silicon PN junction optimized for low forward conduction loss and rapid carrier recombination. Its 500ns trr enables high-frequency switching operation up to 100kHz in flyback and forward converter topologies without excessive switching loss.
The device operates across –65°C to +150°C with a 134°C/W junction-to-ambient thermal resistance on standard FR-4 PCBs. Its patented interlocking clip design enhances mechanical robustness and surge current handling, supporting 25A IFSM under 8.3ms half-sine conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800V - Withstands peak reverse voltage in bridge or single-phase rectifier configurations without breakdown. |
| IO (AV) | 1.0A - Continuous DC output current capability at 25°C ambient with derating above 75°C. |
| VF Max | 1.35V @ 1.0A - Limits conduction loss to ≤1.35W per diode in series-output designs. |
| trr | 500ns - Enables efficient operation in 50–100kHz SMPS without significant reverse recovery loss. |
| IR Max | 10µA @ 800V/25°C - Ensures minimal standby power loss in high-impedance hold-up circuits. |
| IFSM | 25A @ 8.3ms - Supports inrush current tolerance during cold-start in AC-DC power supplies. |
| RθJC | 24°C/W - Allows direct thermal path to heatsink or copper pour for sustained 1A operation. |
Pinout & Package
Package: PowerDI123 - Compact 3-pin surface-mount package with cathode band marking; dimensions 3.70mm × 1.78mm × 1.00mm (L × W × H); thermally enhanced copper leadframe with matte tin annealed finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward current flow | Connected to transformer secondary or switching node; accepts 1A continuous, 25A surge. |
| Cathode | Output terminal for forward current flow | Marked by band; soldered to output rail or filter capacitor; primary thermal path to PCB. |
| Case / Tab | Thermal and electrical connection to cathode | Exposed cathode metal tab provides low-inductance return path and 24°C/W RθJC. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTSL, and ESD testing. |
| Patented interlocking clip | Mechanical reinforcement increases surge survivability and bond strength under thermal stress. |
| Green compound (94V-0) | Halogen- and antimony-free molding compound meets IEC 61249-2-21 and JEDEC J-STD-020. |
| Lead-free & RoHS compliant | Matte tin annealed finish ensures solderability per MIL-STD-202, Method 208. |
| Moisture sensitivity Level 1 | No bake requirement prior to reflow; safe for standard SMT assembly processes. |
Applications
| AC-DC Adapters | DC-DC Converters |
|---|---|
Use Scenario: 5–20W wall-mounted USB chargers with universal input (90–264VAC). IC Role / Device Role / Timing Role: Output rectifier in discontinuous conduction mode (DCM) flyback topology. Use Value: 500ns trr minimizes switching loss at 65kHz, enabling >85% efficiency while maintaining compact size. | Use Scenario: Isolated 12V-to-5V/3.3V buck-derived converters in industrial PLC modules. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in forward converter designs. Use Value: 1.35V VF reduces conduction loss vs. Schottky alternatives at >80°C ambient, improving thermal margin. |
| Power Supplies | Automotive Infotainment |
Use Scenario: Auxiliary 5V/12V bias supplies in server PSUs and telecom rectifiers. IC Role / Device Role / Timing Role: Primary-side snubber clamp or auxiliary winding rectifier. Use Value: 800V VRRM supports 400VDC bus clamping with 2× safety margin against transients. | Use Scenario: USB-C power delivery modules in head units with extended temperature requirements. IC Role / Device Role / Timing Role: Input protection and rectification in 12V battery-fed DC-DC stages. Use Value: AEC-Q101 qualification ensures operation from –40°C to +125°C junction, meeting automotive environmental specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R08 | Same 800V/1A rating but TO-220AC package; 750ns trr; higher VF (1.7V). | Requires through-hole mounting and heatsink; unsuitable for ultra-thin adapters. | Prefer when board space allows and thermal mass improves long-term reliability at >1.2A. |
| ON Semi MUR108 | 800V/1A; 75ns trr; 1.7V VF; DO-41 package; no AEC-Q101 qualification. | Higher speed but larger footprint and lower surge rating (18A IFSM). | Select only for cost-sensitive consumer applications where automotive qualification is unnecessary. |
Compared with STTH1R08 and MUR108, the DFLF1800-13 delivers optimal balance of speed (500ns), thermal efficiency (24°C/W RθJC), and automotive-grade reliability in the smallest possible footprint-making it ideal for space-constrained, high-volume power adapter designs.
Availability
DFLF1800-13 is available at Aetrix Electronics and suitable for AC-DC adapters, DC-DC converters, and automotive infotainment power supplies requiring stable component supply, AEC-Q101 compliance, and compact surface-mount integration.
Supply support for DFLF1800-13 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, specializing in high-efficiency power management, signal integrity, and protection solutions for industrial, computing, and automotive markets.
The DFLF1800 belongs to Diodes' PowerDI® fast recovery rectifier product line, engineered specifically for high-density, high-reliability AC-DC and isolated DC-DC conversion where thermal performance and surge robustness are critical.
FAQ
What is the maximum junction temperature for continuous operation?
The DFLF1800-13 has an operating junction temperature range of –65°C to +150°C. For continuous 1.0A operation at TA = +25°C, thermal design must ensure TJ remains ≤150°C-achievable with ≥24°C/W total thermal resistance (junction-to-PCB plus PCB-to-ambient). Derating begins at +75°C ambient per Figure 4.
Is the PowerDI123 package compatible with standard reflow profiles?
Yes-the PowerDI123 package uses matte tin annealed terminals and is rated Moisture Sensitivity Level 1, permitting use with standard lead-free reflow profiles (peak 260°C). No pre-bake is required, and solderability complies with MIL-STD-202, Method 208.
Does the DFLF1800-13 support bidirectional current flow?
No-it is a unidirectional PN junction rectifier. Forward conduction occurs only from anode to cathode; reverse bias blocks current up to 800V. It cannot function as a bidirectional switch or AC switch without external circuitry.
How does the patented interlocking clip improve reliability?
The interlocking clip (US Patent #7,095,113) mechanically anchors the die to the leadframe, reducing delamination risk during thermal cycling. This enhances surge current endurance (25A IFSM) and extends lifetime in applications with frequent power cycling or high ambient temperature swings.
DFLF1800-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- POWERDI®123
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.35 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 800 V
- Capacitance @ Vr, F:
- 7pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
- Operating Temperature - Junction:
- -65°C ~ 150°C
DFLF1800-13 FAQ
1.How can I place an order for DFLF1800-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLF1800-13 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 DFLF1800-13 reliable?
The price and inventory of DFLF1800-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLF1800-13 is usually 5 days.
3.What payment methods are accepted for DFLF1800-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLF1800-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLF1800-13?
DFLF1800-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLF1800-13 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 DFLF1800-13?
For technical support, including DFLF1800-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLF1800-13 requirements.
6.How does Aetrix verify that DFLF1800-13 is sourced from the original manufacturer or authorized distributors?
All DFLF1800-13 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 DFLF1800-13 meets industry standards.
7.What is the process for return or replacement of DFLF1800-13?
All DFLF1800-13 units undergo pre-shipment inspection (PSI). If there is an issue with DFLF1800-13, 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 DFLF1800-13 part is unused and in its original packaging.
Return procedure for DFLF1800-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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