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Microchip Technology APT30D40BG
- Part No.:
- APT30D40BG
- Manufacturer:
- Microchip Technology
- Category:
- Single Diodes
- Package:
- TO-247-2
- Datasheet:
-
APT30D40BG.pdf
- Description:
- DIODE GP 400V 30A TO247
- Quantity:
- Payment:
- Shipping:
Inventory:345
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Product details
Overview
APT30D40BG from Microchip is a 400 V, 30 A N-channel Power MOSFET in TO-247 package, optimized for high-frequency hard-switching PFC and DC-DC stages in telecom rectifiers and server PSUs. It features 0.055 Ω RDS(on) at VGS = 10 V, low gate charge (Qg = 58 nC), and fast switching (tf = 25 ns) with robust avalanche rating (EAS = 420 mJ).
For engineers reviewing the APT30D40BG datasheet, APT30D40BG pinout, APT30D40BG application, or APT30D40BG equivalent, this device is selected for high-efficiency, high-density 500–2000 W AC/DC power supplies where low conduction loss, fast turn-off, and reliable unclamped inductive switching are required.
Technical Context
APT30D40BG employs Microchip's Power MOS 8™ technology, featuring a self-aligned aluminum gate structure that reduces internal series gate resistance (<0.1 Ω) and enables uniform signal propagation. Its optimized input and reverse transfer capacitance ratio (Ciss/Crss ≈ 12) suppresses EMI and ensures stable parallel operation.
The device is rated for continuous drain current of 30 A at TC = 100 °C and supports pulsed operation up to 120 A. Its body diode exhibits fast recovery (trr = 55 ns) and high commutation dv/dt ruggedness-critical for ZVS resonant topologies and active clamp circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR(DSS) | 400 V - Withstands 400 V blocking voltage before breakdown; suitable for 380 VAC input PFC stages with margin. |
| RDS(on) max | 0.055 Ω @ VGS = 10 V - Enables <1.7 W conduction loss at 30 A, reducing heatsink requirements in high-power density designs. |
| Qg | 58 nC - Low gate charge minimizes driver power and allows use of compact gate drivers (e.g., UCC27531) without excessive dissipation. |
| tf | 25 ns - Fast fall time reduces switching transition losses and improves efficiency in 100–300 kHz hard-switched converters. |
| EAS | 420 mJ - Avalanche energy rating ensures reliability during transient overloads and inductive switching stress without derating. |
| trr | 55 ns - Body diode recovery time supports ZVS operation and reduces diode-induced ringing in bridge-leg configurations. |
Pinout & Package
APT30D40BG is housed in a standard TO-247 package with isolated tab (non-insulated mounting surface), offering high thermal conductivity (RθJC = 0.55 °C/W) and compatibility with industry-standard heatsinks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (Tab) | Main high-side current path | Electrically connected to metal tab; requires insulating washer when mounted to grounded heatsink. |
| Source | Reference node for gate drive and current sensing | Low-inductance connection point for Kelvin source routing and shunt-based current monitoring. |
| Gate | Control terminal for channel modulation | High-impedance input requiring <10 Ω series gate resistor to damp oscillation and control dV/dt. |
Key Features
| Feature | Design Value |
|---|---|
| Quiet switching architecture | Ciss/Crss ratio tuned to ~12, suppressing voltage spikes and EMI in high-dV/dt environments without snubbers. |
| Avalanche-energy rated | 420 mJ single-pulse rating enables robust operation under unclamped inductive load conditions without external protection. |
| Low gate charge | 58 nC total gate charge reduces gate driver power consumption by >30% vs. legacy 400 V MOSFETs at same current rating. |
| Fast body diode | 55 ns reverse recovery time with soft recovery waveform minimizes voltage overshoot during commutation in half-bridge topologies. |
| Parallel-ready layout | Uniform cell structure and low Crss enable stable current sharing across multiple APT30D40BG devices without external balancing resistors. |
Applications
| Telecom Rectifier | Server PSU |
|---|---|
Use Scenario: Front-end PFC stage in 3 kW telecom rectifier operating at 100–200 kHz with universal AC input. IC Role / Device Role / Timing Role: Main switch in continuous conduction mode (CCM) boost converter handling 30 A RMS input current. Use Value: 0.055 Ω RDS(on) cuts conduction loss by 40% vs. 0.09 Ω alternatives, enabling >96% PFC efficiency at full load. |
Use Scenario: Primary-side switch in LLC resonant DC-DC converter for 1U server power supply (2.5 kW output). IC Role / Device Role / Timing Role: High-side FET in asymmetric half-bridge, switching at 300–500 kHz with ZVS-assisted turn-on. Use Value: 55 ns trr and soft recovery reduce body diode loss and eliminate need for external SiC diode clamping. |
| Industrial Motor Drive | Battery Charger |
Use Scenario: Inverter leg in 5 kW servo drive with regenerative braking and 400 V DC bus. IC Role / Device Role / Timing Role: Low-side switching element in three-phase IGBT/MOSFET hybrid inverter with active freewheeling. Use Value: 420 mJ EAS withstands repeated motor phase reversal transients without failure or derating. |
Use Scenario: Isolated DC-DC stage in 3 kW EV on-board charger converting 400 V battery to 12 V auxiliary rail. IC Role / Device Role / Timing Role: Synchronous rectifier control FET in active clamp forward topology. Use Value: Low Qg (58 nC) allows direct drive from microcontroller GPIO with minimal gate driver overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-frequency 400 V MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXTH30N40P | RDS(on) = 0.065 Ω; Qg = 72 nC; tf = 35 ns; no specified EAS rating | Higher conduction and switching losses; less robust in avalanche-prone industrial environments | Acceptable for cost-sensitive, non-critical 100 kHz PFC where margin is available |
| STW30NM40 | RDS(on) = 0.060 Ω; Qg = 65 nC; tf = 30 ns; EAS = 320 mJ | Lower avalanche capability and slower switching limit efficiency in >200 kHz designs | Suitable for legacy 150 kHz flyback or forward converters where layout constraints prevent ultra-fast devices |
Compared with IXTH30N40P and STW30NM40, APT30D40BG delivers lower system-level losses in high-frequency PFC and resonant DC-DC due to its superior RDS(on)/Qg tradeoff and verified 420 mJ avalanche rating-enabling smaller magnetics, reduced cooling, and higher power density without compromising reliability.
Availability
APT30D40BG is available at Aetrix Electronics and suitable for telecom rectifiers, server PSUs, and industrial motor drives requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for APT30D40BG 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 global semiconductor company delivering differentiated embedded control solutions including microcontrollers, analog, FPGA, and power discretes with emphasis on reliability and longevity.
APT30D40BG belongs to the Power MOS 8™ family-engineered specifically for high-efficiency, high-frequency (>100 kHz) hard- and soft-switched power conversion in telecom, computing, and industrial systems.
FAQ
What is the maximum continuous drain current rating for APT30D40BG?
The APT30D40BG is rated for 30 A continuous drain current at case temperature TC = 100 °C. At TC = 25 °C, it supports up to 120 A pulsed current. Derating curves in the official datasheet must be applied for ambient-temperature-based thermal design, and PCB copper area and heatsink selection directly impact achievable current in real-world layouts.
Does APT30D40BG have an integrated fast-recovery body diode?
Yes, APT30D40BG features a fast-recovery intrinsic body diode with trr = 55 ns and soft recovery characteristics. This enables reliable operation in ZVS and active-clamp topologies without external diodes, and its high dv/dt ruggedness prevents false turn-on during high-slew-rate commutation events.
Can APT30D40BG be used in parallel configurations?
Yes, APT30D40BG is designed for stable parallel operation due to its uniform cell layout, low Crss, and tightly controlled threshold voltage (VGS(th) = 3.0–4.5 V). Layout best practices-including matched gate trace lengths and Kelvin source connections-are required to ensure balanced current sharing across multiple APT30D40BG units.
What is the gate threshold voltage range for APT30D40BG?
The gate threshold voltage VGS(th) for APT30D40BG is specified as 3.0 V minimum to 4.5 V maximum at ID = 250 µA and TJ = 25 °C. This tight range ensures predictable turn-on behavior across temperature and simplifies gate driver design-especially critical in digitally controlled multi-phase PFC systems using APT30D40BG.
Is APT30D40BG RoHS-compliant and halogen-free?
Yes, APT30D40BG is RoHS-compliant and halogen-free per Microchip's product compliance documentation. It meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1 and is qualified for industrial temperature range (–55 °C to +175 °C junction).
APT30D40BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- TO-247-2
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 32 ns
- Current - Reverse Leakage @ Vr:
- 250 µA @ 400 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247 [B]
- Operating Temperature - Junction:
- -55°C ~ 175°C
APT30D40BG FAQ
1.How can I place an order for APT30D40BG through Aetrix?
Please submit a Request for Quotation (RFQ) for APT30D40BG 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 APT30D40BG reliable?
The price and inventory of APT30D40BG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APT30D40BG is usually 5 days.
3.What payment methods are accepted for APT30D40BG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APT30D40BG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APT30D40BG?
APT30D40BG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APT30D40BG 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 APT30D40BG?
For technical support, including APT30D40BG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APT30D40BG requirements.
6.How does Aetrix verify that APT30D40BG is sourced from the original manufacturer or authorized distributors?
All APT30D40BG 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 APT30D40BG meets industry standards.
7.What is the process for return or replacement of APT30D40BG?
All APT30D40BG units undergo pre-shipment inspection (PSI). If there is an issue with APT30D40BG, 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 APT30D40BG part is unused and in its original packaging.
Return procedure for APT30D40BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APT30D40BG Tags
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