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Diodes Incorporated SDT10A45P5-7D
- Part No.:
- SDT10A45P5-7D
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
SDT10A45P5-7D.pdf
- Description:
- DIODE SCHOTTKY 45V 10A PDI5 1.5K
- Quantity:
- Payment:
- Shipping:
Inventory:7,251
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Product details
Overview
SDT10A45P5-7D from Diodes Incorporated is a 10A, 45V Trench Schottky barrier rectifier in PowerDI5 package, featuring 0.47V max forward voltage at 10A/25°C, 0.3mA max reverse leakage at 45V/25°C, and 150°C max junction temperature. It serves as a high-efficiency freewheel or output rectifier in compact DC-DC converters and AC-DC adapters.
For engineers reviewing the SDT10A45P5-7D datasheet, SDT10A45P5-7D pinout, SDT10A45P5-7D application, or SDT10A45P5-7D equivalent, key selection criteria include low VF stability at elevated temperature, soft switching behavior for EMI reduction, thermal resistance to case (2°C/W on 2"×2" Al substrate), and RoHS-compliant green packaging with 12mm tape/7-inch reel delivery.
Technical Context
This Schottky rectifier uses trench MOS structure to achieve lower forward voltage and improved high-temperature leakage control versus planar Schottky diodes. Its 0.42V typical VF at 10A/25°C and 0.40V at 10A/125°C enables higher efficiency in high-frequency switching topologies.
The device exhibits soft, fast reverse recovery (no minority-carrier storage) and low junction capacitance (≈1000pF at 0V), supporting operation up to several MHz. Thermal design leverages PowerDI5's 2°C/W RθJC on aluminum substrate, enabling high-power density without external heatsink in constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in buck output or flyback secondary circuits. |
| IO (AV) | 10 A - Continuous average forward current rating at 25°C ambient; derates to ~5.5A at 85°C per Figure 4. |
| VF (max) | 0.47 V @ 10A, 25°C - Low conduction loss enables >95% efficiency in 12V→5V/3.3V synchronous-buck auxiliary rails. |
| IR (max) | 0.3 mA @ 45V, 25°C - Ultra-low leakage preserves standby power in always-on adapter outputs. |
| TJ (max) | +150°C - Enables reliable operation in sealed enclosures or high-ambient industrial power supplies. |
| RθJC | 2 °C/W - Measured on 2"×2" aluminum PCB; allows direct thermal coupling to metal chassis for passive cooling. |
| CJ | ~1000 pF @ 0V - Low junction capacitance minimizes switching loss and EMI in >500kHz converters. |
Pinout & Package
Package: PowerDI5 - surface-mount, thermally enhanced plastic package with exposed cathode pad; 3.966mm × 6.51mm footprint; 1.10mm height; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current terminal | Connected to switch node (e.g., buck high-side FET drain); requires minimum copper area for thermal dissipation. |
| Cathode (Exposed Pad + Lead 2) | Output current terminal / Thermal path | Primary current return and main thermal interface; must be soldered to ≥200mm² 2oz Cu pour for RθJA = 18°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky architecture | Reduces VF by ~0.08V vs. planar Schottky at 10A, directly improving light-load efficiency in USB-PD adapters. |
| Soft, fast switching | No reverse recovery charge (Qrr ≈ 0); eliminates voltage spikes and snubber losses in high-dV/dt environments. |
| +150°C junction rating | Supports operation in sealed power modules where internal ambient exceeds 105°C without derating. |
| Green, halogen-free construction | Meets IEC 61249-2-21: <900ppm Br, <900ppm Cl, <1000ppm Sb; compatible with lead-free reflow profiles. |
Applications
| DC-DC Buck Converter Output Rectifier | AC-DC Adapter Secondary Side |
|---|---|
Use Scenario: 12V input → 5V/3A output in space-constrained IoT gateway power supply. IC Role / Device Role / Timing Role: Synchronous rectifier replacement; conducts during low-side FET on-time, clamping inductive kick during off-time. Use Value: 0.47V VF reduces conduction loss by 35% vs. standard Schottky, lowering thermal rise by 12°C at full load. | Use Scenario: 19V laptop adapter secondary rectification with 65W output. IC Role / Device Role / Timing Role: Output freewheel diode in quasi-resonant flyback topology; handles peak currents up to 180A surge. Use Value: 0.3mA IR at 25°C and <80mA at 125°C maintains <15mW standby loss, meeting DOE Level VI requirements. |
| USB-C PD Fast Charging Module | Industrial 24V Input Power Supply |
Use Scenario: Dual-port 45W USB-C PD charger with dual-output buck-boost stage. IC Role / Device Role / Timing Role: Output rectifier in parallel-connected buck-boost phases; shares current with matched VF tolerance. Use Value: Tight VF distribution (typ 0.42V, max 0.47V) ensures balanced current sharing across paralleled devices. | Use Scenario: DIN-rail mounted 24V/10A industrial power supply operating at 70°C ambient. IC Role / Device Role / Timing Role: Main output blocking diode in redundant 24V feed; prevents backfeed during hot-swap events. Use Value: Stable 0.40V VF at 125°C junction enables consistent voltage regulation without thermal runaway risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay V10P45-M3/86A | Same 45V/10A rating; VF = 0.52V max @ 10A/25°C; RθJC = 3.5°C/W; PowerPAK SO-8 package. | Larger footprint (5.0×6.0mm vs. 3.97×6.51mm); less thermally efficient on PCB; requires larger thermal pad. | Select when existing layout accommodates SO-8 and higher VF is acceptable for cost-sensitive designs. |
| ON Semiconductor SB1045-TB | 45V/10A; VF = 0.55V max @ 10A/25°C; TO-277 package; RθJC = 4.0°C/W; no green/halogen-free certification. | Through-hole compatible variant; higher thermal resistance limits power density; not RoHS 3 compliant. | Select only for legacy through-hole assembly or where green compliance is not required. |
Compared with V10P45-M3/86A and SB1045-TB, SDT10A45P5-7D delivers lowest VF and best thermal performance in smallest footprint, making it optimal for high-density, high-efficiency, and environmentally regulated applications like USB-C PD and industrial DIN-rail supplies.
Availability
SDT10A45P5-7D is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and USB-C PD fast charging modules requiring stable component supply, tight VF matching, and RoHS 3 compliance.
Supply support for SDT10A45P5-7D 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, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
This device belongs to Diodes' PowerDI® Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in compact consumer, computing, and industrial power supplies.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The SDT10A45P5-7D has a specified maximum junction temperature of +150°C, validated per JEDEC JESD22-A108. Operation at this temperature requires thermal design ensuring RθJA ≤ 18°C/W (on 2oz Cu FR-4) or RθJC ≤ 2°C/W (on aluminum substrate), with derated current per Figure 4.
Is the PowerDI5 package lead-free and RoHS 3 compliant?
Yes. The SDT10A45P5-7D features a lead-free finish and complies with EU Directive 2015/863/EU (RoHS 3), including exemptions for lead in copper alloy terminals. It is also halogen- and antimony-free per Diodes' "Green" definition (<900ppm Br+Cl, <1000ppm Sb).
How does the soft switching behavior reduce EMI in high-frequency converters?
As a Schottky diode, SDT10A45P5-7D has no minority carrier storage, eliminating reverse recovery current (Irr) and associated di/dt-induced voltage spikes. This removes a major source of broadband EMI above 30MHz, reducing need for snubbers and easing EMC filter design in >300kHz SMPS.
Can SDT10A45P5-7D replace a standard PN-junction rectifier in an existing design?
Yes, but only if reverse voltage stress remains ≤45V and layout supports PowerDI5's thermal pad. Unlike PN diodes, it lacks reverse recovery time but has higher leakage at high temperature-verify IR contribution to standby loss and ensure no voltage overshoot exceeds VRRM during turn-off transients.
SDT10A45P5-7D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 470 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 300 µA @ 45 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -55°C ~ 150°C
SDT10A45P5-7D FAQ
1.How can I place an order for SDT10A45P5-7D through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT10A45P5-7D 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 SDT10A45P5-7D reliable?
The price and inventory of SDT10A45P5-7D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT10A45P5-7D is usually 5 days.
3.What payment methods are accepted for SDT10A45P5-7D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT10A45P5-7D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT10A45P5-7D?
SDT10A45P5-7D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT10A45P5-7D 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 SDT10A45P5-7D?
For technical support, including SDT10A45P5-7D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT10A45P5-7D requirements.
6.How does Aetrix verify that SDT10A45P5-7D is sourced from the original manufacturer or authorized distributors?
All SDT10A45P5-7D 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 SDT10A45P5-7D meets industry standards.
7.What is the process for return or replacement of SDT10A45P5-7D?
All SDT10A45P5-7D units undergo pre-shipment inspection (PSI). If there is an issue with SDT10A45P5-7D, 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 SDT10A45P5-7D part is unused and in its original packaging.
Return procedure for SDT10A45P5-7D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDT10A45P5-7D Tags
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