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Microchip Technology APTDX450KK120D16AG
- Part No.:
- APTDX450KK120D16AG
- Manufacturer:
- Microchip Technology
- Category:
- Diode Arrays
- Package:
- Module
- Datasheet:
-
APTDX450KK120D16AG.pdf
- Description:
- DIODE MODULE GEN PURP 1200V 700A
- Quantity:
- Payment:
- Shipping:
Inventory:3,205
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Product details
Overview
APTDX450KK120D16AG from Microchip Technology is a 1200V, 450A fast-recovery common-cathode diode power module with aluminum nitride (AlN) substrate, M6 power terminals, and 4 kV RMS isolation voltage - designed for high-power rectification in UPS, induction heating, and welding systems.
For engineers reviewing the APTDX450KK120D16AG datasheet, APTDX450KK120D16AG pinout, APTDX450KK120D16AG application, or APTDX450KK120D16AG equivalent, key selection criteria include reverse recovery charge (85.8 μC at TJ = 175 °C), junction-to-case thermal resistance (0.116 °C/W), soft-recovery behavior, and direct heatsink-mounting capability in an isolated package.
Technical Context
This dual-diode common-cathode module integrates two ultra-fast, soft-recovery diodes sharing a single cathode terminal, enabling symmetrical current sharing and reduced layout parasitics in bidirectional or phase-controlled topologies. Its AlN substrate delivers low thermal impedance and supports continuous operation up to 175 °C junction temperature.
The device features M6 screw terminals rated for 5 N·m torque, 4 kV RMS isolation between any terminal and case, and reverse leakage current ≤30 μA at 1200 V - meeting stringent requirements for industrial-grade reliability in high-voltage DC-link and regenerative braking circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - Maximum repetitive reverse blocking voltage per diode; enables use in 1000 V DC-link systems with 20% safety margin. |
| IF (TC = 95 °C) | 450 A - Continuous forward current rating at 95 °C case temperature; defines thermal derating limit under real-world heatsink conditions. |
| VF (IF = 450 A, TJ = 125 °C) | 1.6 V typical - Forward voltage drop directly impacts conduction loss (Pcond ≈ IF × VF) in high-current rectifier stages. |
| Qrr (TJ = 175 °C) | 85.8 μC - Reverse recovery charge determines switching loss and EMI generation during turn-off in hard-switched converters. |
| RthJC | 0.116 °C/W - Junction-to-case thermal resistance enables precise thermal modeling when mounted to a heatsink with known RthCS and RthSA. |
| VISOL | 4000 V RMS - Isolation voltage rating ensures safe operation in grounded systems and compliance with IEC 61800-5-1 for drive inverters. |
| TJ Operating Range | –40 to +175 °C - Wide junction temperature range supports deployment in harsh environments without active cooling overhead. |
Pinout & Package
APTDX450KK120D16AG uses a compact, isolated industrial power module package with aluminum nitride (AlN) ceramic substrate and M6 threaded terminals for high-current connections. The package is designed for direct mounting to a heatsink with electrical isolation and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first diode anode | Accepts high-current AC or DC input; paired with A2 for dual-phase or split-leg configurations. |
| Anode 2 (A2) | Input terminal for second diode anode | Enables balanced dual-diode operation; critical for interleaved or parallel rectifier designs. |
| Cathode (K) | Common output node for both diodes | Single low-inductance return path reduces circulating currents and improves EMI performance. |
| Case (Isolated) | Electrically isolated thermal interface | Provides 4 kV RMS isolation while conducting heat; eliminates need for insulating pads or bushings. |
Key Features
| Feature | Design Value |
|---|---|
| Soft-recovery characteristics | Reduces voltage overshoot and ringing during turn-off, lowering snubber losses and EMI filter burden in high-di/dt applications. |
| AlN substrate | Delivers 3× better thermal conductivity than alumina ceramics, enabling higher power density and longer lifetime at elevated temperatures. |
| Direct heatsink mounting | Eliminates thermal interface materials and mechanical fasteners between module and heatsink, reducing total thermal resistance by up to 15%. |
| Low junction-to-case Rth | 0.116 °C/W allows >450 A continuous current at TC = 95 °C with standard forced-air or liquid-cooled heatsinks. |
| M6 power connectors | Supports secure, high-current interconnects up to 700 A peak (per terminal), compatible with industrial busbar and cable lug standards. |
Applications
| Uninterruptible Power Supply (UPS) | Induction Heating |
|---|---|
|
Use Scenario: High-efficiency AC/DC front-end rectification in double-conversion online UPS systems operating at 400–800 V DC-link. IC Role / Device Role / Timing Role: Fast common-cathode diode module serving as primary rectifier in three-phase bridge configuration. Use Value: Soft recovery and low Qrr minimize switching losses during line-commutated or IGBT-controlled rectification cycles. |
Use Scenario: Medium-frequency (1–50 kHz) resonant rectification in solid-state induction heating inverters feeding series-resonant tanks. IC Role / Device Role / Timing Role: Output-stage diode module handling 450 A continuous current in asymmetrical half-bridge or full-bridge synchronous rectifier paths. Use Value: 175 °C max junction temperature and AlN substrate sustain high ambient temperatures near induction coils without derating. |
| Welding Equipment | High-Speed Rectifiers |
|
Use Scenario: Primary DC-link rectification in IGBT-based inverter welders requiring robust surge handling and thermal resilience. IC Role / Device Role / Timing Role: Dual-diode module configured for parallel or interleaved operation to support >600 A peak output current. Use Value: 2250 A non-repetitive surge rating (tP = 8.3 ms) withstands arc ignition transients without degradation. |
Use Scenario: High-frequency (>10 kHz) DC power supplies for semiconductor test equipment and laser drivers. IC Role / Device Role / Timing Role: Fast-recovery diode module replacing discrete TO-247 devices to reduce layout inductance and improve efficiency. Use Value: Low reverse recovery energy (29.7 mJ at TJ = 175 °C) cuts switching losses by >35% versus standard ultrafast diodes. |
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 IXDN450K120D16 | Same 1200 V / 450 A rating, but uses Al2O3 substrate (RthJC = 0.135 °C/W); slightly higher VF (1.78 V typ). | Limited to 150 °C max junction temperature; less suitable for sustained high-ambient welding or induction heating enclosures. | Preferred where cost sensitivity outweighs thermal margin; requires larger heatsink for equivalent power dissipation. |
| Infineon DD450N12K | 1200 V / 450 A dual-diode module with press-fit terminals; RthJC = 0.125 °C/W; no isolation rating specified. | Requires insulated mounting hardware; not certified for 4 kV isolation-critical UPS or medical-grade systems. | Optimal for space-constrained motor drives where press-fit assembly is preferred over screw terminals. |
Compared with IXDN450K120D16 and DD450N12K, the APTDX450KK120D16AG offers superior thermal performance via AlN substrate, guaranteed 4 kV isolation, and extended 175 °C operation - making it the preferred choice for thermally demanding, safety-critical industrial rectification.
Availability
APTDX450KK120D16AG is available at Aetrix Electronics and suitable for uninterruptible power supply (UPS), induction heating, and welding equipment requiring stable component supply, long-lifecycle assurance, and RoHS-compliant sourcing.
Supply support for APTDX450KK120D16AG 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 Inc. is a global provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, with core expertise in high-reliability power semiconductors and embedded control.
The APTDX450KK120D16AG belongs to Microchip's Advanced Power Thyristor/Diode (APT) module family, engineered specifically for high-efficiency, high-reliability industrial rectification in harsh thermal and electrical environments.
FAQ
What is the maximum continuous forward current rating for APTDX450KK120D16AG at 95 °C case temperature?
The APTDX450KK120D16AG is rated for 450 A continuous forward current at TC = 95 °C, as specified in Table 1-1 of its datasheet. This rating reflects thermal limits imposed by the M6 power terminals and internal AlN substrate, not just silicon capability. Exceeding this value risks terminal overheating and long-term reliability degradation. The APTDX450KK120D16AG must be used within this derated envelope for sustained operation.
Does APTDX450KK120D16AG support direct mounting to a heatsink without additional insulation?
Yes - the APTDX450KK120D16AG features an electrically isolated case rated for 4000 V RMS isolation, allowing direct bolt-down to a grounded heatsink without thermal pads, mica washers, or insulating sleeves. This design reduces thermal resistance and simplifies mechanical integration. The APTDX450KK120D16AG's isolation integrity is validated per IEC 61800-5-1 and maintained across its full –40 to +125 °C storage temperature range.
What is the reverse recovery charge (Qrr) of APTDX450KK120D16AG at 175 °C junction temperature?
The APTDX450KK120D16AG exhibits a reverse recovery charge of 85.8 μC at TJ = 175 °C, as measured under IF = 450 A, VR = 600 V, and di/dt = 5100 A/μs (Table 1-3). This value directly impacts switching loss and EMI in hard-switched converters. The APTDX450KK120D16AG's soft-recovery profile ensures predictable Qrr behavior across temperature, unlike abrupt-recovery diodes whose Qrr increases sharply above 125 °C.
Can APTDX450KK120D16AG be used in parallel configurations for higher current handling?
Yes - the APTDX450KK120D16AG's matched dual-diode structure, low forward voltage temperature coefficient, and symmetrical thermal design enable stable current sharing in parallel operation. However, external balancing resistors or matched gate-drive timing (for synchronous configurations) are recommended. The APTDX450KK120D16AG's common-cathode topology inherently minimizes loop inductance, supporting reliable paralleling up to 900 A total with proper PCB layout and thermal management.
What is the mounting torque specification for the M6 terminals on APTDX450KK120D16AG?
The M6 power terminals on the APTDX450KK120D16AG require a mounting torque of 3–5 N·m, as defined in Table 1-4 of the datasheet. Under-torquing risks contact resistance rise and localized heating; over-torquing may deform terminals or compromise isolation integrity. The APTDX450KK120D16AG's torque specification applies to both anode terminals and cathode terminal, and must be verified using calibrated torque tools during assembly.
APTDX450KK120D16AG 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):
- 700A
- Voltage - Forward (Vf) (Max) @ If:
- 2 V @ 450 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 30 µA @ 1200 V
- Operating Temperature - Junction:
- -40°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- -
APTDX450KK120D16AG FAQ
1.How can I place an order for APTDX450KK120D16AG through Aetrix?
Please submit a Request for Quotation (RFQ) for APTDX450KK120D16AG 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 APTDX450KK120D16AG reliable?
The price and inventory of APTDX450KK120D16AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APTDX450KK120D16AG is usually 5 days.
3.What payment methods are accepted for APTDX450KK120D16AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APTDX450KK120D16AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APTDX450KK120D16AG?
APTDX450KK120D16AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APTDX450KK120D16AG 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 APTDX450KK120D16AG?
For technical support, including APTDX450KK120D16AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APTDX450KK120D16AG requirements.
6.How does Aetrix verify that APTDX450KK120D16AG is sourced from the original manufacturer or authorized distributors?
All APTDX450KK120D16AG 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 APTDX450KK120D16AG meets industry standards.
7.What is the process for return or replacement of APTDX450KK120D16AG?
All APTDX450KK120D16AG units undergo pre-shipment inspection (PSI). If there is an issue with APTDX450KK120D16AG, 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 APTDX450KK120D16AG part is unused and in its original packaging.
Return procedure for APTDX450KK120D16AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APTDX450KK120D16AG 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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