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Diodes Incorporated DFLU1200-7
- Part No.:
- DFLU1200-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLU1200-7.pdf
- Description:
- DIODE GP 200V 1A POWERDI123
- Quantity:
- Payment:
- Shipping:
Inventory:225,568
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Product details
Overview
DFLU1200-7 from Diodes Incorporated is a 1.0A surface-mount super-fast rectifier diode in PowerDI123 package, rated for 200V peak repetitive reverse voltage, 25ns reverse recovery time, and 0.98V forward voltage at 1.0A. It delivers high-efficiency AC/DC conversion in compact power supplies and DC-DC converters.
For engineers reviewing the DFLU1200-7 datasheet, DFLU1200-7 pinout, DFLU1200-7 application, or DFLU1200-7 equivalent, key selection criteria include fast recovery performance, ESD robustness (±2kV IEC61000-4-2), thermal resistance (6°C/W junction-to-solder point), RoHS/Green compliance, and PowerDI123 footprint compatibility.
Technical Context
This super-fast rectifier employs glass-passivated die construction to ensure stable reverse leakage and rugged surge handling. Its 25ns reverse recovery time enables operation in high-frequency switching topologies up to several hundred kHz without excessive switching loss.
The device features a single-cathode-band polarity marking, matte tin–annealed copper leadframe terminals, and is qualified to J-STD-020 Level 1 moisture sensitivity. Thermal design leverages low RθJS (6°C/W) for efficient heat transfer to PCB cathode tab.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking capability without breakdown |
| IF(AV) | 1.0 A - Continuous average forward current under specified thermal conditions |
| tRR | 25 ns - Time required to transition from forward conduction to reverse blocking state |
| VF @ 1.0A | 0.98 V - Forward voltage drop determining conduction loss in power path |
| RθJS | 6 °C/W - Junction-to-solder-point thermal resistance enabling direct PCB thermal coupling |
| IFSM | 30 A - Non-repetitive surge current rating for line transient immunity |
| CT | 27 pF - Junction capacitance affecting high-frequency noise and switching behavior |
Pinout & Package
Package: PowerDI123 - Surface-mount, 3-pin (anode-cathode-anode) molded plastic case with cathode band marking; UL 94V-0 rated, 0.01g weight, compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode Band (Center Pin) | Output terminal for rectified DC | Primary heat-sinking path; soldered to large copper pad for thermal management |
| Anode (Left Pin) | AC input terminal | Connected to transformer secondary or switching node in flyback/buck topologies |
| Anode (Right Pin) | AC input terminal | Electrically tied to left anode internally; provides mechanical stability and current sharing |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable IR leakage across temperature and long-term reliability in humid environments |
| Super-fast 25ns tRR | Reduces switching losses in high-frequency SMPS designs operating above 100kHz |
| ±2kV ESD protection (IEC61000-4-2) | Eliminates need for external ESD protection in board-level assembly and handling |
| PowerDI123 package | Provides 30% smaller footprint than SMA while maintaining 1.0W power dissipation capability |
| Halogen- and antimony-free "Green" construction | Meets global environmental regulations including EU RoHS 2 and JEDEC JS709B |
Applications
| Switch-Mode Power Supply Output Rectification | DC-DC Converter Freewheeling Diode |
|---|---|
Use Scenario: Secondary-side rectification in 5–24V output flyback or forward converters delivering up to 12W. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC to regulated DC; operates at 65–500kHz switching frequencies. Use Value: 25ns tRR minimizes reverse recovery loss, improving efficiency by ~1.2% over standard fast rectifiers at 250kHz. | Use Scenario: Freewheeling path in synchronous buck converters where body diode conduction occurs during low-side FET dead time. IC Role / Device Role / Timing Role: Provides controlled, low-loss current recirculation during MOSFET off-state; complements control IC timing requirements. Use Value: 0.98V VF at 1.0A reduces conduction loss during freewheeling, lowering thermal stress on adjacent power stages. |
| USB-C Power Delivery Adapter Input Stage | Industrial Sensor Power Conditioning |
Use Scenario: Bridge rectification in compact 20–65W USB-C PD adapters with space-constrained PCB layouts. IC Role / Device Role / Timing Role: High-density AC input rectifier replacing larger DO-214AC packages; supports 60Hz–100kHz input filtering. Use Value: PowerDI123 footprint saves >40% board area vs. SMA while maintaining 1.0A rating and thermal performance. | Use Scenario: Reverse-polarity and surge protection in 12–24V industrial sensor modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Polarity guard and clamp element; withstands 30A surge events per IEC 61000-4-5 Level 3. Use Value: ±2kV contact ESD rating and 30A IFSM eliminate need for discrete TVS in many Class II sensor designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS12 | 1.0A, 200V Schottky; VF = 0.52V @ 1.0A; no reverse recovery (tRR ≈ 0); max TJ = 125°C | Lower conduction loss but limited to ≤125°C ambient; unsuitable for 150°C industrial environments | Select SS12 only when thermal budget allows lower VF benefit and junction temperature stays below 125°C |
| DFL1200-7 | Same PowerDI123 package; identical VRRM, IF(AV), tRR; differs in marking and internal process qualification | No functional difference; approved for same automotive-grade production lines per Diodes Inc. QM-100 spec | DFL1200-7 is direct manufacturing variant-use when AEC-Q101 qualification is explicitly required |
Compared with SS12 and DFL1200-7, DFLU1200-7 offers superior high-temperature operation (150°C TJ) and full industrial reliability qualification, making it preferred for extended-life embedded systems where thermal margin and long-term leakage stability are critical.
Availability
DFLU1200-7 is available at Aetrix Electronics and suitable for switch-mode power supplies, DC-DC converters, and industrial sensor power conditioning requiring stable component supply and long-lifecycle availability.
Supply support for DFLU1200-7 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-performance, energy-efficient components for power management and signal integrity.
The DFLU series belongs to Diodes' Power Discrete product line, engineered specifically for high-frequency rectification in space-constrained, thermally demanding power conversion applications.
FAQ
What is the maximum allowable junction temperature for DFLU1200-7?
The DFLU1200-7 has an operating junction temperature range of –65°C to +150°C. This 150°C upper limit enables reliable operation in sealed industrial enclosures and automotive under-hood environments where ambient temperatures exceed 100°C, provided thermal design maintains RθJA ≤ 182°C/W on FR-4 PCB.
Can DFLU1200-7 replace a standard 1N4007 in a linear power supply?
No - DFLU1200-7 is optimized for high-frequency switching applications (≥100kHz), not 50/60Hz linear supplies. Its 200V VRRM is lower than 1N4007's 1000V, and its 25ns tRR provides no benefit at line frequency. Use only in SMPS, DC-DC, or high-frequency rectification circuits per datasheet Figure 4 derating curves.
Is the PowerDI123 package lead-free and RoHS compliant?
Yes - DFLU1200-7 uses matte tin–annealed copper leadframe terminals and green molding compound, meeting EU RoHS Directive 2011/65/EU and Diodes Incorporated's Halogen- and Antimony-Free "Green" definition (<900ppm Br/Cl, <1000ppm Sb). Compliance is verified per MIL-STD-202 Method 208 solderability testing.
How is the cathode identified on the DFLU1200-7 package?
The cathode is marked by a distinct black band located at the center pin of the PowerDI123 package. This band aligns with the center terminal, which serves as the primary heat-sinking path and must be soldered to a thermal pad. Anode connections are made to the two outer pins, which are internally shorted.
DFLU1200-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- POWERDI®123
- 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:
- 980 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 27pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
- Operating Temperature - Junction:
- -65°C ~ 150°C
DFLU1200-7 FAQ
1.How can I place an order for DFLU1200-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLU1200-7 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 DFLU1200-7 reliable?
The price and inventory of DFLU1200-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLU1200-7 is usually 5 days.
3.What payment methods are accepted for DFLU1200-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLU1200-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLU1200-7?
DFLU1200-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLU1200-7 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 DFLU1200-7?
For technical support, including DFLU1200-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLU1200-7 requirements.
6.How does Aetrix verify that DFLU1200-7 is sourced from the original manufacturer or authorized distributors?
All DFLU1200-7 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 DFLU1200-7 meets industry standards.
7.What is the process for return or replacement of DFLU1200-7?
All DFLU1200-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLU1200-7, 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 DFLU1200-7 part is unused and in its original packaging.
Return procedure for DFLU1200-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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