Diodes Incorporated PDU540-13
- Part No.:
- PDU540-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
PDU540-13.pdf
- Description:
- DIODE GEN PURP 400V 5A POWERDI5
- Quantity:
- Payment:

- Shipping:

Inventory:22,000
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Product details
Overview
PDU540 from Diodes Incorporated is a 5A glass-passivated ultra-fast recovery rectifier in PowerDI5 package, rated for 400V peak repetitive reverse voltage, 1.185V max forward voltage at 5A/25°C, and 35ns reverse recovery time. It delivers high forward surge current (125A) and operates up to +150°C junction temperature, enabling use in high-frequency inverters and polarity protection circuits.
For engineers reviewing the PDU540 datasheet, PDU540 pinout, PDU540 application, or PDU540 equivalent, key selection criteria include ultra-fast recovery (tRR = 35ns), thermal resistance (RθJS = 3.0°C/W), junction temperature range (–65°C to +150°C), and PowerDI5 package compatibility with FR-4 and polyimide PCB layouts.
Technical Context
This device is a single-phase, silicon planar junction rectifier optimized for high-efficiency switching applications. Its glass-passivated die construction ensures stable reverse leakage (<10µA at 400V/25°C) and robust surge handling (IFSM = 125A, 8.3ms half-sine).
The PowerDI5 package provides low thermal resistance to soldering point (3.0°C/W), enabling high power density in compact designs. Reverse recovery behavior is characterized under IF = 0.5A, IR = 1.0A, IRR = 0.25A per Figure 7, confirming suitability for >100kHz operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Withstands 400V repetitive reverse voltage without breakdown, suitable for 283V RMS input lines. |
| IO | 5 A - Continuous average forward current rating at TA = +25°C with recommended PCB layout. |
| tRR | 35 ns - Ultra-fast recovery enables high-frequency switching (>100 kHz) with minimal switching loss. |
| VF Max | 1.185 V @ 5A/25°C - Low conduction loss improves system efficiency in DC-DC and inverter outputs. |
| RθJS | 3.0 °C/W - Low junction-to-solder-point thermal resistance supports high-power dissipation on standard PCBs. |
| IFSM | 125 A - Handles transient surges common in motor drives and inductive load switching. |
| TJ Range | –65°C to +150°C - Wide operating junction temperature supports industrial and automotive under-hood environments. |
Pinout & Package
Package: PowerDI5 - thermally efficient surface-mount package with exposed cathode pad (9.4mm × 7.2mm) and anode pad (2.7mm × 1.6mm); molded green compound, UL 94V-0 rated, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Left Pin | Anode | Forward current entry terminal; electrically connected to right pin on PCB for mechanical stability and current sharing. |
| Right Pin | Anode | Dual-anode configuration enhances current capacity and thermal spreading; requires PCB trace connection between pins. |
| Bottom Pad | Cathode | Primary heat sink interface; large copper area (9.4mm × 7.2mm) minimizes RθJA and enables 40°C/W thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures long-term reliability and stable IR under high-voltage stress and humidity exposure. |
| Ultra-fast tRR = 35 ns | Reduces reverse recovery loss in high-frequency SMPS and synchronous rectifier auxiliary paths. |
| High TJ = +150°C max | Enables operation in sealed enclosures or near heat sources without derating in most industrial designs. |
| PowerDI5 thermal design | Exposed cathode pad delivers RθJA as low as 40°C/W (with optimized polyimide PCB layout), improving power density. |
Applications
| Motor Drive Freewheeling | Solar Inverter DC Link |
|---|---|
Use Scenario: Freewheeling path in 3-phase BLDC motor gate driver stages operating at 20–50 kHz. IC Role / Device Role / Timing Role: Clamps inductive kickback during MOSFET turn-off; recovers before next switching cycle. Use Value: 35ns tRR prevents cross-conduction loss and enables higher PWM frequency without efficiency penalty. | Use Scenario: DC bus protection in string-level solar microinverters with 400V nominal input. IC Role / Device Role / Timing Role: Polarity protection diode across PV input terminals to prevent reverse current damage. Use Value: 400V VRRM and 125A IFSM withstand lightning-induced surges and grid fault transients. |
| AC-DC Adapter Output Rectification | Industrial UPS Battery Charging |
Use Scenario: Secondary-side rectification in 65W–100W flyback adapters switching at 65–130 kHz. IC Role / Device Role / Timing Role: High-efficiency output rectifier replacing slower 1N540x series diodes. Use Value: 1.185V VF at 5A reduces conduction loss by ~18% vs. standard fast recovery diodes at same current. | Use Scenario: Reverse-polarity protection in 48V battery charging modules for telecom backup systems. IC Role / Device Role / Timing Role: Blocking diode in charge path to prevent battery discharge into failed supply rails. Use Value: –65°C to +150°C TJ range ensures reliable operation across outdoor temperature extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH5L06 | 600V VRRM, 5A IO, tRR = 35ns, TO-220AC package | Through-hole mounting; higher RθJA (~50°C/W) limits power density in space-constrained designs | Preferred where legacy through-hole assembly or higher voltage margin is required |
| ES5D-E3/54 | 200V VRRM, 5A IO, tRR = 35ns, SMA package | Lower voltage rating; smaller footprint but no exposed thermal pad, limiting thermal performance | Selected for cost-sensitive, low-voltage (<200V) consumer applications with minimal thermal demand |
Compared with STTH5L06 and ES5D-E3/54, PDU540 uniquely balances 400V rating, ultra-fast recovery, and PowerDI5's low-RθJS thermal design-making it optimal for high-density, high-frequency industrial power supplies where both voltage margin and thermal management are critical.
Availability
PDU540 is available at Aetrix Electronics and suitable for motor drive freewheeling, solar inverter DC link protection, and AC-DC adapter output rectification requiring stable component supply and consistent thermal performance.
Supply support for PDU540 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, headquartered in Plano, Texas, serving industrial, computing, communications, and consumer markets with high-reliability components.
The PowerDI rectifier product line targets high-efficiency, high-power-density power conversion systems-designed specifically for applications demanding fast recovery, high surge tolerance, and superior thermal performance in surface-mount packages.
FAQ
What is the maximum allowable junction temperature for PDU540?
The PDU540 has a specified operating junction temperature range of –65°C to +150°C. This maximum value is validated under rated electrical conditions and proper PCB thermal design. Exceeding +150°C risks permanent degradation of the glass-passivated junction and increased reverse leakage.
How does the dual-anode pin configuration affect PCB layout?
The left and right pins are both anodes and must be electrically connected on the PCB using a low-impedance copper trace. This configuration improves current sharing and thermal spreading. Failure to connect them increases localized heating and may exceed RθJA limits, especially at full 5A load.
Can PDU540 replace standard 1N5408 diodes in existing designs?
PDU540 offers significantly faster recovery (35ns vs. ~2μs for 1N5408) and lower VF (1.185V vs. ~1.2V), but its 400V VRRM is lower than 1N5408's 1000V. Direct replacement is viable only if circuit reverse voltage remains ≤400V and switching frequency exceeds 20kHz-otherwise, overvoltage risk or insufficient speed benefit applies.
What is the significance of the "Green" designation in PDU540's packaging?
The "Green" designation confirms compliance with Diodes Incorporated's halogen- and antimony-free standard: <900ppm bromine, <900ppm chlorine (total Br+Cl <1500ppm), and <1000ppm antimony. This meets IPC-1752A material declaration requirements and supports environmentally regulated end markets.
PDU540-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.185 V @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -65°C ~ 150°C
PDU540-13 FAQ
1.How can I place an order for PDU540-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDU540-13 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 PDU540-13 reliable?
The price and inventory of PDU540-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDU540-13 is usually 5 days.
3.What payment methods are accepted for PDU540-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDU540-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDU540-13?
PDU540-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDU540-13 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 PDU540-13?
For technical support, including PDU540-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDU540-13 requirements.
6.How does Aetrix verify that PDU540-13 is sourced from the original manufacturer or authorized distributors?
All PDU540-13 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 PDU540-13 meets industry standards.
7.What is the process for return or replacement of PDU540-13?
All PDU540-13 units undergo pre-shipment inspection (PSI). If there is an issue with PDU540-13, 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 PDU540-13 part is unused and in its original packaging.
Return procedure for PDU540-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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