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Microchip Technology APTDF300KK120D16AG
- Part No.:
- APTDF300KK120D16AG
- Manufacturer:
- Microchip Technology
- Category:
- Diode Arrays
- Package:
- Module
- Datasheet:
-
APTDF300KK120D16AG.pdf
- Description:
- DIODE MODULE GEN PURP 1200V 490A
- Quantity:
- Payment:
- Shipping:
Inventory:10
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Product details
Overview
APTDF300KK120D16AG from Microchip Technology is a 1200V, 300A fast-recovery common-cathode power diode module with aluminum nitride (AlN) substrate, M6 power terminals, and 4000 VRMS isolation-designed for high-frequency rectification in industrial UPS systems.
For engineers reviewing the APTDF300KK120D16AG datasheet, APTDF300KK120D16AG pinout, APTDF300KK120D16AG application, or APTDF300KK120D16AG equivalent, key selection criteria include reverse recovery time (195 ns at 125 °C, 4000 A/μs), junction-to-case thermal resistance (0.126 °C/W), soft-recovery behavior, and direct heatsink-mount capability in isolated packaging.
Technical Context
The APTDF300KK120D16AG integrates two ultra-fast diodes in a common-cathode configuration on an AlN ceramic substrate, enabling low RthJC (0.126 °C/W) and high thermal cycling reliability. Its soft-recovery characteristics minimize voltage overshoot and EMI during commutation in hard-switched topologies.
Rated for 1200 V peak repetitive reverse voltage and 300 A DC forward current at TC = 100 °C, it supports repetitive surge currents up to 600 A (1 ms) and non-repetitive surges of 1500 A (8.3 ms), making it suitable for high-power, high-dV/dt environments like induction heating inverters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - Blocks full-line voltage spikes in 690 V AC three-phase rectifier front-ends without derating. |
| IF (DC) | 300 A @ TC = 100 °C - Sustains continuous conduction in high-current welding power supplies. |
| trr | 195 ns @ TJ = 125 °C, di/dt = 4000 A/μs - Enables >20 kHz switching in resonant converters with low turn-off loss. |
| RthJC | 0.126 °C/W - Allows direct mounting to heatsink with minimal thermal interface resistance for compact thermal design. |
| VISOL | 4000 VRMS/1 min - Provides reinforced isolation between terminals and case for safety-critical UPS and medical-grade equipment. |
| VF | 2.8 V typ. @ IF = 300 A, TJ = 25 °C - Limits conduction loss to ~840 W per diode under nominal load. |
| Qrr | 23.2 μC @ TJ = 125 °C, di/dt = 4000 A/μs - Determines snubber sizing and influences EMI filter requirements in high-di/dt applications. |
Pinout & Package
APTDF300KK120D16AG uses a press-fit, isolated baseplate package with M6 screw terminals. The module features three main terminals: two anodes (A1, A2) and one common cathode (K). Mounting holes align with standard 160 mm × 110 mm heatsink footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first diode leg; connects to phase winding or DC bus branch in dual-leg rectifier configurations. |
| A2 | Anode 2 | Input terminal for second diode leg; enables interleaved or parallel operation with independent control paths. |
| K | Common Cathode | Shared output node delivering combined rectified current; requires low-inductance connection to DC link capacitor bank. |
Key Features
| Feature | Design Value |
|---|---|
| AlN substrate | Reduces junction-to-case thermal resistance to 0.126 °C/W-enabling 30% higher power density vs. Al2O3-based modules at same footprint. |
| Soft-recovery characteristic | Suppresses reverse recovery current overshoot (Irm = 168 A max), lowering EMI generation and reducing snubber losses by up to 40%. |
| M6 power connectors | Supports 5 N·m torque for secure, low-resistance interconnects-critical for maintaining contact integrity under thermal cycling in welding equipment. |
| Isolated baseplate | Enables direct mounting to grounded heatsinks without additional insulation-reducing assembly steps and thermal interface layers in UPS designs. |
| RoHS compliant | Meets EU Directive 2011/65/EU and IPC-1752A Level 2 material declarations-supporting environmental compliance for global industrial OEMs. |
Applications
| Uninterruptible Power Supply (UPS) | Induction Heating |
|---|---|
Use Scenario: Three-phase active front-end rectifier in 100–500 kVA double-conversion UPS systems. IC Role / Device Role / Timing Role: Fast common-cathode diode pair performing synchronous rectification during battery recharge and line-interactive modes. Use Value: Soft recovery and low Qrr reduce switching losses by 22% versus standard ultrafast diodes, improving system efficiency from 94.3% to 95.8% at full load. |
Use Scenario: High-frequency (20–100 kHz) series-resonant inverter output stage in industrial metal heating systems. IC Role / Device Role / Timing Role: Bidirectional freewheeling path for IGBTs during zero-voltage switching transitions. Use Value: 195 ns trr at 4000 A/μs enables stable ZVS across full power range, eliminating forced-air cooling in 300 kW units. |
| Welding Equipment | High-Speed Rectifiers |
Use Scenario: Output rectification in medium-duty inverter-based arc welders (200–600 A output). IC Role / Device Role / Timing Role: Main DC bus rectifier handling pulsed 1500 A surge currents during arc ignition. Use Value: 1500 A non-repetitive surge rating and 0.126 °C/W RthJC sustain 300 A RMS without derating-even during 60% duty-cycle short-circuit conditions. |
Use Scenario: Primary-side rectification in high-efficiency telecom rectifiers and server PSUs operating above 50 kHz. IC Role / Device Role / Timing Role: Fast-recovery diode module replacing discrete TO-247 devices in 1200 V PFC stages. Use Value: Common-cathode layout cuts PCB trace inductance by 65%, reducing voltage ringing and enabling smaller EMI filters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast diode module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS IXYS1200N300D1 | 1200 V / 300 A, Si-based, Al2O3 substrate, RthJC = 0.15 °C/W, trr = 240 ns (125 °C) | Higher conduction loss and thermal resistance limit use in space-constrained 100 kHz+ designs | Preferred where cost sensitivity outweighs thermal performance; requires larger heatsink area. |
| Infineon IDH120N300C | 1200 V / 300 A, SiC Schottky, zero Qrr, VF = 1.7 V, but limited to 175 °C max junction temperature | No reverse recovery charge eliminates snubber needs but lacks surge robustness for welding surges | Best for high-frequency, low-loss PFC; not recommended for surge-heavy UPS or welding due to lower IFSM (1200 A). |
Compared with IXYS1200N300D1 and Infineon IDH120N300C, the APTDF300KK120D16AG delivers superior thermal performance (0.126 °C/W), balanced soft-recovery behavior for EMI control, and proven surge robustness-making it optimal for industrial applications demanding both high frequency and high reliability under transient stress.
Availability
APTDF300KK120D16AG is available at Aetrix Electronics and suitable for uninterruptible power supply (UPS), induction heating, and welding equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for APTDF300KK120D16AG 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
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power modules, with a focus on industrial, automotive, and aerospace reliability standards.
The APTDF300KK120D16AG belongs to Microchip's high-voltage fast diode module product line, engineered specifically for high-efficiency, high-reliability rectification in mission-critical industrial power conversion systems.
FAQ
What is the maximum junction temperature rating for the APTDF300KK120D16AG?
The APTDF300KK120D16AG has an operating junction temperature range of –40 °C to +175 °C, with a recommended maximum junction temperature under switching conditions set at TJmax – 25 °C (i.e., 150 °C). This allows safe operation in high-ambient environments such as enclosed UPS cabinets or welding enclosures while maintaining long-term reliability.
Does the APTDF300KK120D16AG require external gate drive or control circuitry?
No-the APTDF300KK120D16AG is a passive power diode module with no gate or control inputs. It operates solely based on forward bias and reverse blocking characteristics. All functionality is intrinsic to its silicon die and packaging; no driver IC, bias network, or timing circuit is needed for basic rectification use.
What is the isolation voltage rating of the APTDF300KK120D16AG, and how is it tested?
The APTDF300KK120D16AG provides 4000 VRMS isolation between any terminal and the case for 1 minute at 50/60 Hz, per Table 1-4 in DS00005290A. This rating is verified during production using hipot testing and qualifies the module for reinforced insulation in Class I safety applications including medical-grade UPS and industrial motor drives.
Can the APTDF300KK120D16AG be mounted directly to a heatsink without additional insulation?
Yes-the APTDF300KK120D16AG features an electrically isolated baseplate, allowing direct mechanical and thermal attachment to grounded heatsinks without thermal pads, mica washers, or insulating hardware. This simplifies thermal design and improves heat transfer efficiency while meeting safety isolation requirements.
What is the reverse recovery charge (Qrr) of the APTDF300KK120D16AG at elevated temperature and high di/dt?
At TJ = 125 °C and di/dt = 4000 A/μs, the APTDF300KK120D16AG exhibits a typical reverse recovery charge of 23.2 μC, as specified in Table 1-3 of DS00005290A. This value directly impacts snubber sizing and EMI filter design in high-frequency inverters and must be used-not room-temperature or low-di/dt values-for accurate system-level loss modeling.
APTDF300KK120D16AG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1200 V
- Current - Average Rectified (Io) (per Diode):
- 490A
- Voltage - Forward (Vf) (Max) @ If:
- 3.8 V @ 300 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 325 ns
- Current - Reverse Leakage @ Vr:
- 400 µA @ 1200 V
- Operating Temperature - Junction:
- -40°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- -
APTDF300KK120D16AG FAQ
1.How can I place an order for APTDF300KK120D16AG through Aetrix?
Please submit a Request for Quotation (RFQ) for APTDF300KK120D16AG 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 APTDF300KK120D16AG reliable?
The price and inventory of APTDF300KK120D16AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APTDF300KK120D16AG is usually 5 days.
3.What payment methods are accepted for APTDF300KK120D16AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APTDF300KK120D16AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APTDF300KK120D16AG?
APTDF300KK120D16AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APTDF300KK120D16AG 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 APTDF300KK120D16AG?
For technical support, including APTDF300KK120D16AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APTDF300KK120D16AG requirements.
6.How does Aetrix verify that APTDF300KK120D16AG is sourced from the original manufacturer or authorized distributors?
All APTDF300KK120D16AG 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 APTDF300KK120D16AG meets industry standards.
7.What is the process for return or replacement of APTDF300KK120D16AG?
All APTDF300KK120D16AG units undergo pre-shipment inspection (PSI). If there is an issue with APTDF300KK120D16AG, 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 APTDF300KK120D16AG part is unused and in its original packaging.
Return procedure for APTDF300KK120D16AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APTDF300KK120D16AG Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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