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Diodes Incorporated FES2DEQ-7
- Part No.:
- FES2DEQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-219AA
- Datasheet:
-
FES2DEQ-7.pdf
- Description:
- DIODE GP 200V 2A DO219AA T&R
- Quantity:
- Payment:
- Shipping:
Inventory:2,958
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Product details
Overview
FES2DEQ-7 from Diodes Incorporated is an AEC-Q101 qualified ultra-fast surface-mount rectifier in DO-219AA package, rated for 200V peak reverse voltage, 2A average forward current, and 25ns reverse recovery time. It serves as a boost diode in automotive PFC circuits and secondary/freewheeling rectifier in high-temperature DC-DC and AC-AC converters.
For engineers reviewing the FES2DEQ-7 datasheet, FES2DEQ-7 pinout, FES2DEQ-7 application, or FES2DEQ-7 equivalent, key selection criteria include its 0.92V max forward voltage at 2A, 5µA max reverse leakage at 200V/25°C, 25°C/W junction-to-case thermal resistance, and suitability for flat-panel display power stages and LED lighting drivers requiring low-loss, high-reliability rectification.
Technical Context
The FES2DEQ-7 employs glass-passivated silicon die construction to achieve stable reverse blocking up to 200V and ultra-fast 25ns recovery under IF = 0.5A / IR = 1.0A conditions. Its DO-219AA package enables low-profile mounting with 0.016g mass and 70°C/W junction-to-ambient thermal resistance.
Designed for automotive-grade reliability, it operates across –55°C to +150°C, supports 50A non-repetitive surge current, and meets RoHS 3, halogen-free, and IATF 16949 manufacturing requirements - critical for under-hood power conversion where thermal stability and long-term leakage control are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Sustains peak reverse voltage in boost and freewheeling topologies without breakdown |
| IO (AV) | 2 A - Continuous DC output current capability at TA = +25°C, derated above 25°C |
| VF (max) | 0.92 V @ 2A - Low conduction loss enabling >92% efficiency in 12V–48V secondary rectification |
| tRR | 25 ns - Enables switching frequencies up to 1 MHz in resonant and synchronous converter designs |
| IR (max) | 5 µA @ 200V, 25°C - Minimizes standby power loss in always-on automotive subsystems |
| RθJC | 25 °C/W - Allows direct thermal coupling to PCB copper for passive heatsinking in space-constrained modules |
| TJ Range | –55°C to +150°C - Validated operation across full automotive ambient temperature envelope |
Pinout & Package
DO-219AA surface-mount package: 2-terminal, cathode-banded, molded green plastic case (UL 94V-0), 1.90mm width × 2.80mm length × 0.60mm height, matte tin-plated copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to switch node or transformer secondary winding; must withstand 50A surge transients |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or ground return; polarity marking ensures correct PCB orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Eliminates moisture-induced parameter drift and enhances long-term reliability in humid under-hood environments |
| AEC-Q101 qualification | Validated for automotive use with PPAP documentation support and zero-defect manufacturing traceability |
| Low-profile DO-219AA | Reduces board height to ≤0.75mm - critical for slim LED driver and infotainment power modules |
| Halogen & antimony free | Complies with EU Directive 2015/863/EU; Br+Cl <1500ppm, Sb <1000ppm for eco-compliant vehicle recycling |
Applications
| Flat Panel Display Power | Automotive LED Headlamp Driver |
|---|---|
Use Scenario: High-efficiency DC-DC step-up for LCD backlight inverters in instrument clusters and center displays. IC Role / Device Role / Timing Role: Secondary-side ultra-fast rectifier in synchronous flyback topology operating at 300–500 kHz. Use Value: 0.92V VF minimizes conduction loss at 1.5A load; 25ns tRR prevents shoot-through in high-frequency PWM dimming control. | Use Scenario: Freewheeling path in buck-based LED current regulators for adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: Reverse-biased clamp during MOSFET off-time in 200kHz constant-current switching stage. Use Value: 5µA IR at 125°C ensures <100µW standby dissipation; AEC-Q101 rating guarantees 15-year lifetime at 125°C junction temperature. |
| USB-C PD Charger Secondary | Industrial PoE++ Midspan Supply |
Use Scenario: Output rectification in compact 65W GaN-based USB-C PD chargers with dual-output rails. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in LLC resonant converter secondary stage. Use Value: 25°C/W RθJC enables direct thermal pad attachment to inner copper layer, maintaining TJ <110°C at full load without heatsink. | Use Scenario: Auxiliary power supply rectification in IEEE 802.3bt Type 4 PoE++ midspan injectors delivering 90W over CAT6a. IC Role / Device Role / Timing Role: Boost diode in active clamp forward converter powering controller and gate drivers. Use Value: 200V VRRM safely handles reflected transients from 57V PoE bus; DO-219AA footprint fits tight 10mm × 10mm layout constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB220-E3/54 (Vishay) | 200V VRRM, 2A IO, but 35ns tRR and 0.95V VF - higher conduction & switching loss | Not AEC-Q101 qualified; limited to commercial-temp industrial supplies | Select only if automotive qualification is not required and cost sensitivity outweighs 8% efficiency penalty at 500kHz |
| ES2D (ON Semiconductor) | 200V VRRM, 2A IO, 35ns tRR, 0.95V VF, DO-214AA package - larger footprint and 100°C max TJ | Non-automotive grade; lacks PPAP support and IATF 16949 traceability | Acceptable for consumer charger designs where thermal margin >25°C exists and AEC compliance is unnecessary |
Compared with SB220-E3/54 and ES2D, the FES2DEQ-7 delivers superior thermal performance (RθJC = 25°C/W vs. ≥40°C/W), tighter leakage control (5µA vs. ≥50µA at 125°C), and full automotive qualification - making it the sole choice for safety-critical, high-density, high-temperature rectification where reliability and efficiency are co-prioritized.
Availability
FES2DEQ-7 is available at Aetrix Electronics and suitable for flat panel display power supplies, automotive LED lighting systems, and USB-C PD charger designs requiring stable component supply, AEC-Q101 traceability, and consistent ultra-fast recovery performance.
Supply support for FES2DEQ-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-reliability power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
The FES2DEQ-7 belongs to Diodes' AEC-Q101-qualified ultra-fast rectifier product line, engineered specifically for high-efficiency, high-temperature power conversion in automotive ADAS, lighting, and infotainment systems.
FAQ
What is the maximum junction temperature and thermal resistance profile of the FES2DEQ-7?
The FES2DEQ-7 has a maximum junction temperature of +150°C and specified thermal resistances of 25°C/W (junction-to-case), 20°C/W (junction-to-lead), and 70°C/W (junction-to-ambient). These values are measured per JESD-51 and enable direct thermal pad coupling to PCB copper layers for effective heat extraction in automotive modules.
Is the FES2DEQ-7 suitable for use in synchronous rectification topologies?
No - the FES2DEQ-7 is a unidirectional, passive ultra-fast rectifier, not a synchronous MOSFET-based device. It functions as a freewheeling or boost diode in non-synchronous topologies like flyback, forward, and LLC converters where gate-controlled switching is not required.
Does the FES2DEQ-7 require derating when used in capacitive-load applications?
Yes - per the datasheet, average forward current must be derated by 20% when used with capacitive loads due to increased peak current stress. At TA = +25°C, the rated IO of 2A reduces to 1.6A for capacitor-input filter configurations common in LED drivers and display power supplies.
How is polarity identified on the FES2DEQ-7 DO-219AA package?
Polarity is marked by a cathode band at one end of the DO-219AA body. The banded end corresponds to the cathode terminal; the opposite end is the anode. This marking aligns with standard diode polarity conventions and is verified in the top-view schematic and mechanical drawings in DS42655 Rev. 3-2.
FES2DEQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-219AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 920 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 32pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AA
- Operating Temperature - Junction:
- -55°C ~ 150°C
FES2DEQ-7 FAQ
1.How can I place an order for FES2DEQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for FES2DEQ-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 FES2DEQ-7 reliable?
The price and inventory of FES2DEQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FES2DEQ-7 is usually 5 days.
3.What payment methods are accepted for FES2DEQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FES2DEQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FES2DEQ-7?
FES2DEQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FES2DEQ-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 FES2DEQ-7?
For technical support, including FES2DEQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FES2DEQ-7 requirements.
6.How does Aetrix verify that FES2DEQ-7 is sourced from the original manufacturer or authorized distributors?
All FES2DEQ-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 FES2DEQ-7 meets industry standards.
7.What is the process for return or replacement of FES2DEQ-7?
All FES2DEQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with FES2DEQ-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 FES2DEQ-7 part is unused and in its original packaging.
Return procedure for FES2DEQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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