My Inquiry
My Account
Diodes Incorporated FES1GE
- Part No.:
- FES1GE
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-219AA
- Datasheet:
-
FES1GE.pdf
- Description:
- DIODE GEN PURP 400V 1A F1A
- Quantity:
- Payment:
- Shipping:
Inventory:2,306
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
FES1GE from Diodes Incorporated is a surface-mount super fast rectifier diode rated for 400 V repetitive peak reverse voltage and 1.0 A average forward current at Tc = 90°C, featuring 25 ns reverse recovery time, 1.25 V max forward voltage at 1.0 A, and qualified to AEC-Q101 Rev_C for automotive use in power supply and DC-DC converter outputs.
For engineers reviewing the FES1GE datasheet, FES1GE pinout, FES1GE application, or FES1GE equivalent, key selection criteria include its DO-219AA package compatibility, low leakage (5 µA @ 400 V, 25°C), thermal resistance (RthJC = 50°C/W), and suitability for high-frequency switching in compact power converters.
Technical Context
This super fast rectifier uses a glass-passivated silicon junction optimized for minimal reverse recovery charge and low conduction loss. Its 25 ns tRR and 14 pF junction capacitance support operation up to several hundred kHz in flyback and boost topologies.
The device operates across –55°C to +150°C junction temperature, with thermal resistance RthJC of 50°C/W enabling efficient heat transfer to the PCB pad. It sustains 30 A non-repetitive surge current (8.3 ms half-sine) and maintains <200 µA leakage at 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Withstands repetitive reverse voltage up to 400 V without breakdown, suitable for 380 VAC input-derived DC rails. |
| I(AV) | 1.0 A @ Tc = 90°C - Continuous average forward current rating when mounted on a standard FR4 PCB with defined copper area. |
| tRR | 25 ns - Enables high-frequency switching (>200 kHz) with low switching loss in SMPS output stages. |
| VF | ≤1.25 V @ IF = 1.0 A, 25°C - Low conduction loss improves efficiency in low-voltage, high-current secondary-side rectification. |
| IR | ≤5 µA @ VR = 400 V, 25°C - Minimizes standby power loss in energy-sensitive applications like USB PD adapters. |
| RthJC | 50°C/W - Junction-to-case thermal resistance supports direct thermal coupling to copper pour for reliable 1 A operation. |
Pinout & Package
Package: DO-219AA (JEDEC), surface-mount, single-diode configuration with cathode marked by band. Case material is halogen-free green molding compound (UL 94V-0); terminals feature matte tin lead-free plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to transformer secondary or switch node; requires adequate trace width for 1 A continuous current. |
| Cathode | Forward current exit node / reverse blocking terminal | Marked with band; ties to output capacitor positive rail; critical for EMI filtering layout due to fast edge transitions. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Rev_C qualification | Validated for automotive under-hood and infotainment power supplies requiring robust reliability and extended temperature operation. |
| Glass passivated chip | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives, improving field lifetime in humid environments. |
| Low VF and low IR co-optimization | Enables high-efficiency 12 V/24 V DC-DC outputs where both conduction and leakage losses impact light-load efficiency. |
| DO-219AA footprint | Compact 3.8 × 1.9 mm outline supports high-density layouts in space-constrained AC-DC adapters and LED drivers. |
Applications
| Automotive Infotainment Power Supply | USB-C PD Adapter Secondary Rectification |
|---|---|
Use Scenario: 12 V DC output stage of a buck-derived power module supplying head unit and display subsystems. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback converter. Use Value: 25 ns tRR reduces switching loss and EMI generation during high-frequency operation (≥250 kHz), while AEC-Q101 compliance ensures reliability over vehicle lifetime. | Use Scenario: Secondary-side rectification in compact 65 W USB-C PD adapter with 20 V output. IC Role / Device Role / Timing Role: Fast recovery diode replacing Schottky in cost-sensitive designs where 400 V rating enables margin for transient clamping. Use Value: 1.25 V VF at 1 A delivers comparable conduction loss to 45 V Schottkys while supporting higher input transients and reducing BOM count vs. active clamp solutions. |
| Industrial IoT Sensor Node Power | LED Driver Constant-Current Stage |
Use Scenario: Auxiliary 5 V/3.3 V rail generation from 24 V industrial bus using isolated flyback. IC Role / Device Role / Timing Role: Primary output rectifier handling 0.8–1.0 A load with intermittent duty cycle. Use Value: ≤5 µA IR at 25°C minimizes no-load power draw, extending battery-backed operation time during sleep mode. | Use Scenario: High-side rectification in constant-current LED driver with 36 V string voltage. IC Role / Device Role / Timing Role: Fast recovery diode in buck-boost LED controller output path. Use Value: 400 V VRRM provides 10× margin over 36 V LED string, eliminating need for additional overvoltage protection components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R04 | Same 400 V VRRM, 1 A I(AV), but TO-277A package (larger footprint); tRR = 30 ns; VF = 1.3 V. | Requires larger PCB area; slightly higher conduction loss; not AEC-Q101 qualified. | Select if legacy TO-277A footprint compatibility is required and automotive qualification is unnecessary. |
| SB140 | 40 V VRRM, Schottky construction; VF ≈ 0.5 V; no reverse recovery; not rated >125°C. | Only suitable for low-voltage (<48 V) outputs; cannot replace FES1GE in 380 VAC-derived 400 V systems. | Choose only for sub-48 V DC-DC outputs where ultra-low VF outweighs voltage limitation and temperature derating. |
Compared with STTH1R04 and SB140, FES1GE uniquely combines AEC-Q101 qualification, DO-219AA compactness, and 400 V capability-making it optimal for automotive and space-constrained 400 V-class power supplies where reliability and size matter.
Availability
FES1GE is available at Aetrix Electronics and suitable for automotive infotainment power supplies, USB-C PD adapter secondary stages, and industrial IoT sensor node auxiliary rails requiring stable component supply and long-term lifecycle assurance.
Supply support for FES1GE 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, high-reliability components for power management, signal integrity, and protection applications.
FES1GE belongs to Diodes' FES series of super fast rectifiers designed specifically for high-efficiency, high-frequency AC-DC and DC-DC converters in automotive, industrial, and consumer power supplies.
FAQ
Is FES1GE suitable for synchronous rectification circuits?
No, FES1GE is a passive super fast rectifier diode-not a MOSFET-based synchronous rectifier. It lacks gate control and cannot be actively switched. It serves as a freewheeling or output rectifier in non-synchronous topologies like standard flyback or boost converters where simplicity and cost are prioritized over peak efficiency.
What is the maximum PCB copper area recommended for thermal performance at 1 A?
Per Diodes' thermal characterization (JESD-51), a minimum 25 mm² of 2-oz copper connected directly to both anode and cathode pads achieves the specified RthJC of 50°C/W. For sustained 1 A operation at ambient >60°C, doubling that area to 50 mm² is recommended to maintain TJ <125°C.
Does the "E1G" marking correspond to the full part number?
Yes, "E1G" is the laser-marked code on the DO-219AA package representing FES1GE. This marking is standardized per Diodes' packaging specification and matches the ordering part number FES1GE-7 (2500/reel) and FES1GE (10000/reel).
Can FES1GE replace a 1N4007 in a linear power supply?
No-while both are rectifiers, the 1N4007 is a general-purpose slow diode (tRR > 30 µs) intended for 50/60 Hz line-frequency applications. FES1GE's 25 ns tRR offers no benefit at low frequency and its 1 A rating is lower than the 1N4007's 1 A average *at 60°C ambient* (not case temperature). Thermal design and surge capability differ significantly.
FES1GE 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):
- 400 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 14pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- F1A (DO219AA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
FES1GE FAQ
1.How can I place an order for FES1GE through Aetrix?
Please submit a Request for Quotation (RFQ) for FES1GE 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 FES1GE reliable?
The price and inventory of FES1GE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FES1GE is usually 5 days.
3.What payment methods are accepted for FES1GE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FES1GE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FES1GE?
FES1GE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FES1GE 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 FES1GE?
For technical support, including FES1GE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FES1GE requirements.
6.How does Aetrix verify that FES1GE is sourced from the original manufacturer or authorized distributors?
All FES1GE 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 FES1GE meets industry standards.
7.What is the process for return or replacement of FES1GE?
All FES1GE units undergo pre-shipment inspection (PSI). If there is an issue with FES1GE, 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 FES1GE part is unused and in its original packaging.
Return procedure for FES1GE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FES1GE Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
