onsemi FFPF06U40DNTU
- Part No.:
- FFPF06U40DNTU
- Manufacturer:
- onsemi
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack
- Datasheet:
-
FFPF06U40DNTU.pdf
- Description:
- DIODE ARR AVAL 400V 6A TO220F-3
- Quantity:
- Payment:

- Shipping:

Inventory:6,904
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Product details
Overview
FFPF06U40DNTU from ON Semiconductor (formerly Fairchild) is an ultrafast recovery power rectifier diode in TO-220F package, rated for 400 V peak repetitive reverse voltage, 6 A average forward current at TC = 100°C, and 50 ns maximum reverse recovery time. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the FFPF06U40DNTU datasheet, pinout, applications, or equivalent options, key selection criteria include soft recovery behavior, low forward voltage (1.4 V @ 6 A, 25°C), low reverse recovery charge (100 nC), and thermal resistance (7.0°C/W) for reliable conduction in compact SMPS designs.
Technical Context
This device implements a planar epitaxial silicon junction structure optimized for ultrafast switching with soft reverse recovery characteristics-critical for reducing EMI and voltage overshoot in flyback and forward converters. Its 50 ns trr and 4.0 A Irr are measured under standardized conditions (IF = 6 A, di/dt = 200 A/µs).
The TO-220F package features insulated case (plastic body with metal tab isolated), enabling direct mounting to heatsinks without electrical isolation hardware. Thermal performance is defined by RθJC = 7.0°C/W, supporting continuous 6 A operation up to 100°C case temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum reverse blocking capability without breakdown in repetitive operation |
| IF(AV) | 6 A @ TC = 100°C - Sustained DC forward current rating with proper heatsinking |
| trr | 50 ns - Fast reverse recovery minimizes switching losses and ringing in >100 kHz SMPS |
| VFM | 1.4 V @ IF = 6 A, TC = 25°C - Low conduction loss improves efficiency at nominal load |
| Qrr | 100 nC - Low stored charge reduces diode-induced turn-on loss in synchronous rectification |
| RθJC | 7.0°C/W - Enables thermal design with standard TO-220 heatsinks for 6 A continuous duty |
Pinout & Package
Package: TO-220F (insulated case, plastic body with electrically isolated metal tab). Dimensions per Rev. F datasheet: 15.80 mm × 10.16 mm × 4.70 mm, with 2.54 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Main P-side connection; carries forward current into device during conduction |
| 2 | Cathode | Main N-side connection; return path for forward current and reverse-blocking terminal |
| 3 | Anode | Second anode terminal-device is dual-anode single-cathode configuration (common-cathode pair) |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast soft recovery | 50 ns trr with low Irr (4.0 A) and minimal voltage overshoot-reduces snubber stress and EMI |
| Low forward voltage | 1.4 V @ 6 A, 25°C-lowers conduction loss and thermal load in high-current rectification |
| Dual-anode configuration | Pins 1 and 3 both anodes, Pin 2 cathode-enables parallel conduction or dual-output rectification in one package |
| Insulated TO-220F package | Electrically isolated metal tab allows direct heatsink mounting without insulating washers or pads |
Applications
| Switch-Mode Power Supply Output Rectifier | DC-DC Converter Freewheeling Diode |
|---|---|
Use Scenario: Used in secondary-side rectification of 65–300 kHz flyback or forward converters delivering 12–48 V outputs. IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer secondary to regulated DC output. Use Value: 50 ns trr and soft recovery minimize switching node ringing and reduce need for RC snubbers. | Use Scenario: Placed across inductive loads (e.g., buck converter output chokes or motor windings) to provide current recirculation path during switch-off. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback and sustaining current continuity. Use Value: Low Qrr (100 nC) limits energy dissipation during recovery, improving efficiency and thermal margin. |
| AC-DC Adapter Secondary Side | Industrial 24 V Power Module |
Use Scenario: Output rectification in compact wall adapters supplying 5–19 V to consumer electronics. IC Role / Device Role / Timing Role: High-efficiency discrete rectifier replacing slower general-purpose diodes. Use Value: 1.4 V VFM at 6 A lowers conduction loss versus standard FR series, improving light-load efficiency. | Use Scenario: Embedded 24 V DC power stage in PLC I/O modules or sensor interface boards requiring robust, field-replaceable rectification. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 6 A load with ambient up to 70°C. Use Value: TO-220F insulation and 7.0°C/W RθJC support reliable operation without additional isolation hardware or oversized heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast power rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8R06DJF | 600 V VRRM, 8 A IF(AV), 60 ns trr, TO-220AC package (non-insulated) | Higher voltage rating suits 400 VAC input designs; non-insulated case requires isolation hardware | Select when higher reverse voltage margin or higher current headroom is required, and case isolation can be managed externally |
| VS-6EWH06FN-M3 | 400 V VRRM, 6 A IF(AV), 45 ns trr, TO-220F package, 1.35 V VFM @ 6 A | Near-identical specs and insulated package; slightly faster recovery and lower VFM | Drop-in replacement where tighter trr tolerance or marginal VFM reduction is beneficial; same footprint and mounting |
Compared with FFPF06U40DNTU, STTH8R06DJF offers higher voltage and current headroom but requires external insulation, while VS-6EWH06FN-M3 delivers marginally better speed and conduction loss in the same insulated TO-220F form factor-making it the closest functional match for drop-in upgrades.
Availability
FFPF06U40DNTU is available at Aetrix Electronics and suitable for switching mode power supply output rectification, industrial DC-DC converter freewheeling, and AC-DC adapter secondary-side applications requiring stable component supply and long-term industrial availability.
Supply support for FFPF06U40DNTU 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
ON Semiconductor is a global semiconductor manufacturer specializing in power management, analog, and discrete devices, with legacy technology from Fairchild Semiconductor.
The FFPF06U40DNTU belongs to Fairchild's Ultrafast Recovery Power Rectifier product line, designed specifically for high-efficiency, high-frequency switching power conversion where soft recovery and low conduction loss are critical.
FAQ
What is the maximum junction temperature for FFPF06U40DNTU?
The FFPF06U40DNTU has a specified operating junction temperature range of –65°C to +150°C. This allows reliable operation in harsh environments such as industrial power supplies and automotive under-hood auxiliary systems, provided thermal design maintains TJ within limits using the 7.0°C/W RθJC value and appropriate heatsinking.
Does FFPF06U40DNTU support dual-anode configurations?
Yes, the FFPF06U40DNTU integrates two anodes (Pins 1 and 3) sharing a common cathode (Pin 2), forming a dual-anode single-cathode structure. This configuration supports parallel conduction paths or dual-output rectification in compact layouts without requiring two separate diodes or external paralleling components.
Is FFPF06U40DNTU RoHS compliant?
FFPF06U40DNTU complies with RoHS Directive 2011/65/EU and subsequent amendments. The device uses lead-free terminations and halogen-free molding compounds, consistent with ON Semiconductor's standard manufacturing practices for legacy Fairchild power diodes released post-2006 requalification.
What is the avalanche energy rating of FFPF06U40DNTU?
The FFPF06U40DNTU is rated for 1.0 mJ of single-pulse avalanche energy (WAVL), verified per JEDEC test conditions. This capability provides limited transient overvoltage protection during inductive switching events, though external clamping remains recommended for sustained or repetitive stress.
Can FFPF06U40DNTU replace standard FR107 diodes in existing designs?
FFPF06U40DNTU can replace FR107 in many cases due to matching 1000 V VRRM (FR107) vs. 400 V (FFPF06U40DNTU) - but only if system reverse voltage stays ≤400 V. Its superior 50 ns trr, soft recovery, and lower VFM improve efficiency and EMI, but voltage derating must be confirmed. Pinout differs: FR107 is DO-41; FFPF06U40DNTU is TO-220F with three terminals.
FFPF06U40DNTU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Avalanche
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io) (per Diode):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1.4 V @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 20 µA @ 400 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220F-3
FFPF06U40DNTU FAQ
1.How can I place an order for FFPF06U40DNTU through Aetrix?
Please submit a Request for Quotation (RFQ) for FFPF06U40DNTU 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 FFPF06U40DNTU reliable?
The price and inventory of FFPF06U40DNTU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FFPF06U40DNTU is usually 5 days.
3.What payment methods are accepted for FFPF06U40DNTU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FFPF06U40DNTU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FFPF06U40DNTU?
FFPF06U40DNTU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FFPF06U40DNTU 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 FFPF06U40DNTU?
For technical support, including FFPF06U40DNTU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FFPF06U40DNTU requirements.
6.How does Aetrix verify that FFPF06U40DNTU is sourced from the original manufacturer or authorized distributors?
All FFPF06U40DNTU 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 FFPF06U40DNTU meets industry standards.
7.What is the process for return or replacement of FFPF06U40DNTU?
All FFPF06U40DNTU units undergo pre-shipment inspection (PSI). If there is an issue with FFPF06U40DNTU, 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 FFPF06U40DNTU part is unused and in its original packaging.
Return procedure for FFPF06U40DNTU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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