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Diodes Incorporated SDT10A45P5-13D
- Part No.:
- SDT10A45P5-13D
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
SDT10A45P5-13D.pdf
- Description:
- DIODE SCHOTTKY 45V 10A POWERDI5
- Quantity:
- Payment:
- Shipping:
Inventory:9,850
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Product details
Overview
SDT10A45P5 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 DC-DC converters and AC-DC adapters.
For engineers reviewing the SDT10A45P5 datasheet, SDT10A45P5 pinout, SDT10A45P5 application, or SDT10A45P5 equivalent, key selection criteria include low VF stability across temperature, soft switching behavior for EMI control, thermal resistance to case (2°C/W with 2"×2" Al substrate), and RoHS-compliant green packaging for industrial power supplies.
Technical Context
This Schottky rectifier uses trench MOS structure to reduce series resistance and enhance carrier injection efficiency, enabling lower VF than planar Schottkys at rated current. Its soft recovery minimizes voltage overshoot during diode turn-off in synchronous buck topologies.
The device achieves stable IR < 80µA at 125°C and VR = 45V, supported by thermally optimized PowerDI5 package with 2°C/W RθJC on aluminum substrate - critical for high-density, convection-cooled 12V–48V intermediate bus converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 36V nominal DC-DC outputs. |
| IO(AV) | 10 A - Average forward current rating at TA = 25°C with minimum PCB copper; supports continuous 12V/10A output stages. |
| VF Max | 0.47 V @ 10A, 25°C - Directly reduces conduction loss to ≤4.7W per device; enables >95% efficiency in 12V→5V buck converters. |
| IR Max | 0.3 mA @ 45V, 25°C - Low leakage preserves light-load efficiency and prevents thermal runaway in parallel configurations. |
| TJ Max | +150°C - Enables operation in sealed enclosures or high-ambient environments without derating below 10A up to 85°C ambient. |
| RθJC | 2 °C/W - Measured on 2"×2" Al substrate; allows direct heatsinking for >10W dissipation in compact adapter designs. |
| Capacitance | 1000 pF @ 0V - Low junction capacitance minimizes switching loss and EMI in 300–500 kHz SMPS applications. |
Pinout & Package
Package: PowerDI5 - surface-mount, thermally enhanced plastic package with exposed cathode pad; 3.966 mm × 6.51 mm footprint; 1.10 mm height; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to switch node or transformer secondary; accepts pulsed surge up to 180A (8.3ms). |
| Cathode | Output current terminal & thermal path | Exposed metal pad soldered to PCB copper pour; primary heat extraction path to board or heatsink. |
| Case (exposed pad) | Thermal interface / Cathode extension | Electrically tied to cathode; must be soldered to ≥1 cm² 2oz Cu for rated RθJC = 2°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky architecture | Reduces VF by ~15% vs. planar Schottky at 10A, directly lowering conduction loss in high-current rails. |
| Soft, fast switching | Minimizes reverse recovery dv/dt-induced ringing and EMI in high-frequency synchronous rectifiers. |
| +150°C junction rating | Enables full 10A current delivery in ambient temperatures up to +85°C without external cooling. |
| Halogen- and antimony-free "Green" construction | Meets IEC 61249-2-21:2017; <900ppm Br+Cl total, <1000ppm Sb - compliant for automotive and industrial eco-design. |
Applications
| DC-DC Converters | AC-DC Adapters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 300–500 kHz isolated flyback or forward converters delivering 5–12V/10A. IC Role / Device Role / Timing Role: Freewheeling rectifier replacing MOSFET gate drive complexity; conducts during low-side switch off-time. Use Value: 0.47V VF cuts conduction loss by 30% vs. Si diode, improving full-load efficiency by 1.2–1.8% at 12V output. | Use Scenario: Output rectification in compact wall-mounted 12V/90W AC-DC adapters with natural convection cooling. IC Role / Device Role / Timing Role: Primary output blocking diode; handles continuous 10A load with minimal thermal rise on 2oz Cu PCB. Use Value: 2°C/W RθJC enables 10W dissipation within 20°C ΔT, eliminating need for heatsinks in space-constrained adapters. |
| Industrial Power Supplies | Telecom Intermediate Bus Converters |
Use Scenario: Input rectification in 48V input industrial PSUs with wide ambient range (-40°C to +85°C). IC Role / Device Role / Timing Role: Bulk input rectifier handling 10A average current with surge tolerance up to 180A (8.3ms). Use Value: Stable IR < 80µA at 125°C prevents thermal runaway during sustained overload conditions. | Use Scenario: Point-of-load (POL) rectification in 48V→12V telecom brick modules operating at 400kHz. IC Role / Device Role / Timing Role: High-frequency output rectifier; leverages low 1000pF capacitance to minimize switching loss. Use Value: Soft recovery eliminates snubber requirements, reducing BOM count and layout area in dense telecom modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-10BQ040-M3/45 | 45V/10A; VF = 0.52V @ 10A/25°C; RθJC = 3.5°C/W; TO-277 package. | Larger footprint (6.7mm × 4.2mm); requires larger thermal pad; higher VF increases conduction loss by ~0.5W. | Preferred where TO-277 mechanical compatibility is required; less optimal for ultra-compact layouts. |
| ON Semiconductor SB1040 | 40V/10A; VF = 0.55V @ 10A/25°C; RθJC = 4.0°C/W; SMA package. | Lower VRRM limits use to ≤32V systems; higher thermal resistance demands larger copper area for same power dissipation. | Suitable for cost-sensitive 24V systems where 45V margin is unnecessary; not recommended for 36V+ or high-density designs. |
Compared with VS-10BQ040-M3/45 and SB1040, SDT10A45P5 delivers lowest VF and best thermal performance in smallest footprint, making it optimal for space- and efficiency-critical 45V-rated DC-DC and adapter designs.
Availability
SDT10A45P5 is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and industrial power supplies requiring stable component supply, high-temperature reliability, and RoHS-compliant green packaging.
Supply support for SDT10A45P5 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 North America.
The SDT10A45P5 belongs to Diodes' PowerDI® Schottky rectifier product line, engineered specifically for high-efficiency, high-power-density AC-DC and DC-DC conversion in consumer, industrial, and telecom power systems.
FAQ
What is the maximum allowable PCB copper area for thermal performance validation?
The datasheet specifies two RθJA values: 88°C/W on standard FR-4 with minimum recommended pad layout (per Diodes' package outline), and 18°C/W on 2oz copper. For full 10A rating, the exposed cathode pad must connect to ≥1 cm² of 2oz copper pour; smaller areas require current derating per Figure 4.
Does SDT10A45P5 support parallel operation?
Yes - its positive temperature coefficient of VF enables inherent current sharing. However, layout symmetry (matched trace length/impedance) and thermal coupling (shared copper pour) are mandatory to achieve balanced loading; mismatched paths may cause >20% current imbalance at full load.
Is the PowerDI5 package compatible with reflow profiles for lead-free assembly?
Yes - the device is qualified for J-STD-020 Level 1 moisture sensitivity and supports standard Pb-free reflow profiles (peak 260°C, 30 sec max). The green molding compound is rated UL 94V-0 and withstands multiple reflow cycles without delamination or parameter shift.
How does leakage current behave at elevated temperature?
IR increases predictably with temperature: 0.3mA at 25°C, 38mA at 125°C, and ≤80mA at 150°C under 45V reverse bias. This stable, non-avalanche behavior avoids thermal runaway in parallel configurations when proper thermal management is applied.
SDT10A45P5-13D 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
SDT10A45P5-13D FAQ
1.How can I place an order for SDT10A45P5-13D through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT10A45P5-13D 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 SDT10A45P5-13D reliable?
The price and inventory of SDT10A45P5-13D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT10A45P5-13D is usually 5 days.
3.What payment methods are accepted for SDT10A45P5-13D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT10A45P5-13D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT10A45P5-13D?
SDT10A45P5-13D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT10A45P5-13D 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 SDT10A45P5-13D?
For technical support, including SDT10A45P5-13D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT10A45P5-13D requirements.
6.How does Aetrix verify that SDT10A45P5-13D is sourced from the original manufacturer or authorized distributors?
All SDT10A45P5-13D 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 SDT10A45P5-13D meets industry standards.
7.What is the process for return or replacement of SDT10A45P5-13D?
All SDT10A45P5-13D units undergo pre-shipment inspection (PSI). If there is an issue with SDT10A45P5-13D, 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 SDT10A45P5-13D part is unused and in its original packaging.
Return procedure for SDT10A45P5-13D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDT10A45P5-13D Tags
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