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Diodes Incorporated SDT10A45P5-7
- Part No.:
- SDT10A45P5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
SDT10A45P5-7.pdf
- Description:
- DIODE SCHOTTKY 45V 10A PDI5 1.5K
- Quantity:
- Payment:
- Shipping:
Inventory:1,726
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Product details
Overview
SDT10A45P5 from Diodes Incorporated is a 10A, 45V trench Schottky barrier rectifier in PowerDI5 package, featuring 0.47 V max forward voltage at 10 A and 0.3 mA max reverse leakage at 45 V/25°C. It operates up to +150°C junction temperature and serves as a high-efficiency freewheel or output rectifier in compact DC-DC converters.
For engineers reviewing the SDT10A45P5 datasheet, SDT10A45P5 pinout, SDT10A45P5 application, or SDT10A45P5 equivalent, key selection criteria include low VF stability at elevated temperature, soft switching behavior for EMI control, thermal resistance (RθJC = 2°C/W on Al substrate), and RoHS-compliant green packaging with 12 mm tape & reel delivery.
Technical Context
This Schottky rectifier uses trench MOS structure to reduce forward voltage while maintaining low reverse leakage-critical for high-frequency, high-efficiency power conversion. Its soft recovery minimizes voltage overshoot and ringing during diode turn-off in synchronous buck and flyback topologies.
The device achieves RθJC = 2°C/W when mounted on a 2"×2" aluminum PCB, enabling high-power density designs without forced air cooling. Junction-to-ambient thermal resistance drops to 18°C/W under same conditions-significantly lower than standard SMC or TO-277 packages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum blocking voltage before avalanche; suitable for 36 V nominal input DC-DC stages. |
| IO (AV) | 10 A - Continuous average forward current at TA = 25°C with recommended pad layout. |
| VF (max) | 0.47 V @ 10 A, 25°C - Enables <4.7 W conduction loss per device at full load; reduces heatsink requirements. |
| IR (max) | 0.3 mA @ 45 V, 25°C - Low leakage preserves efficiency in standby and light-load operation. |
| TJ (max) | +150°C - Supports operation in sealed enclosures or high-ambient industrial environments. |
| RθJC | 2°C/W - Confirmed on 2"×2" Al substrate; enables direct thermal coupling to metal chassis or heatsink. |
| Package | PowerDI5 - Surface-mount, thermally enhanced plastic package with exposed cathode pad for low-inductance layout. |
Pinout & Package
PowerDI5 is a 3-terminal surface-mount package with an exposed cathode pad (terminal 2) for thermal and electrical connection. Cathode is marked by green bar on top surface; anode is terminal 1, cathode is terminal 2 (exposed pad), and terminal 3 is unused (floating).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Input-side terminal for forward conduction; routed to switch node or transformer secondary. |
| 2 (Cathode) | Cathode connection / Thermal pad | Output-side terminal and primary thermal path; must be soldered to large copper pour or metal core PCB. |
| 3 (NC) | No connect | Internally unconnected; no electrical function; may be left floating or tied to cathode for mechanical stability. |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky architecture | Reduces VF by ~15% vs. planar Schottky at 10 A, improving full-load efficiency in 12–48 V systems. |
| Soft, fast switching | Minimizes reverse recovery dv/dt-induced EMI; eliminates need for snubbers in 300–1000 kHz converters. |
| +150°C junction rating | Enables derating-free operation in automotive under-hood or industrial motor drive power supplies. |
| Halogen & antimony free | Meets IEC 61249-2-21:2017; <900 ppm Br/Cl, <1000 ppm Sb-supports strict environmental compliance programs. |
Applications
| DC-DC Converters | AC-DC Adaptors |
|---|---|
Use Scenario: Output rectification in 300–500 kHz synchronous buck converters powering FPGA or ASIC cores. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss return path during high-side FET off-time. Use Value: 0.47 V VF limits conduction loss to ≤4.7 W at 10 A, reducing thermal stress on adjacent controllers and enabling smaller inductors. | Use Scenario: Secondary-side rectification in compact wall-plug adapters for USB PD and laptop chargers. IC Role / Device Role / Timing Role: Output rectifier handling continuous 5–10 A loads with minimal voltage drop across 5–20 V output rails. Use Value: Stable IR <0.3 mA at 25°C and <80 µA at 125°C ensures low standby power consumption and meets Energy Star Tier 2 requirements. |
| Industrial Power Supplies | Telecom Rectifier Modules |
Use Scenario: Input-stage OR-ing diode in redundant 48 V DC distribution systems for PLCs and HMIs. IC Role / Device Role / Timing Role: Blocking diode preventing backfeed between parallel power sources during fault conditions. Use Value: 45 V VRRM provides 20% margin over 48 V nominal bus; 150°C rating supports operation inside sealed IP65 enclosures. | Use Scenario: High-current output rectification in 48 V telecom rectifier modules delivering ≥1000 W. IC Role / Device Role / Timing Role: Primary output rectifier operating in parallel configurations with forced-air cooling. Use Value: RθJC = 2°C/W allows direct mounting to aluminum cold plates, achieving <10°C junction rise above heatsink at 10 A. |
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 | 40 V VRRM, 0.45 V VF @ 10 A, TO-277 package, RθJC = 3.5°C/W | Limited to ≤40 V systems; higher thermal resistance requires larger heatsink area. | Prefer for cost-sensitive 36 V systems where 5 V margin is acceptable. |
| ON Semiconductor SB1045-T | 45 V VRRM, 0.52 V VF @ 10 A, SMA package, RθJA = 65°C/W (FR-4) | Higher VF increases conduction loss by ~0.5 W; unsuitable for >85°C ambient without airflow. | Select only for legacy SMA footprint compatibility; avoid in thermally constrained designs. |
Compared with VS-10BQ040-M3/45 and SB1045-T, SDT10A45P5 delivers superior thermal performance (RθJC = 2°C/W), tighter voltage margin control (45 V exact), and lower conduction loss-making it optimal for space-constrained, high-reliability 48 V intermediate bus applications.
Availability
SDT10A45P5 is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adaptors, and industrial power supplies requiring stable component supply, long-term lifecycle support, 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 and manufacturing operations across Asia and the Americas.
The SDT10A45P5 belongs to Diodes' PowerDI® trench Schottky rectifier product line, engineered specifically for high-efficiency, high-temperature power conversion in space-constrained applications such as server VRMs and telecom rectifiers.
FAQ
What is the maximum allowable junction temperature for SDT10A45P5?
The SDT10A45P5 has a rated maximum junction temperature of +150°C, verified per JEDEC JESD22-A108. This rating applies under steady-state conditions with proper thermal management-specifically, when mounted on a 2"×2" aluminum substrate per datasheet Note 7. Exceeding this temperature risks permanent degradation of Schottky barrier integrity and accelerated leakage growth.
Does SDT10A45P5 have a built-in thermal pad, and how should it be connected?
Yes, terminal 2 of the PowerDI5 package is an exposed cathode pad that functions as both electrical cathode connection and primary thermal path. It must be soldered to a minimum 100 mm² copper pour or directly to an aluminum heatsink using thermally conductive epoxy or solder. Leaving it unconnected degrades RθJC from 2°C/W to >15°C/W and violates safe operating area limits.
How does the soft switching behavior of SDT10A45P5 reduce EMI in high-frequency converters?
Its trench Schottky structure eliminates minority-carrier storage, resulting in near-zero reverse recovery charge (Qrr < 10 nC). This prevents abrupt current collapse and associated high dv/dt transients during turn-off-reducing common-mode noise by up to 12 dB in 500 kHz buck converters compared to fast recovery diodes, and eliminating need for RC snubbers.
Is SDT10A45P5 suitable for use in automotive under-hood applications?
While rated for TJ = –55°C to +150°C, SDT10A45P5 is not AEC-Q101 qualified and lacks automotive-specific reliability testing (e.g., HTOL, TCT, UHAST). It may be used in non-safety-critical under-hood auxiliary supplies if derated to ≤8 A and validated per ISO 16750-4 for transient immunity-but Diodes' APx series is recommended for qualified automotive designs.
SDT10A45P5-7 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
SDT10A45P5-7 FAQ
1.How can I place an order for SDT10A45P5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT10A45P5-7 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 SDT10A45P5-7 reliable?
The price and inventory of SDT10A45P5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT10A45P5-7 is usually 5 days.
3.What payment methods are accepted for SDT10A45P5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT10A45P5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT10A45P5-7?
SDT10A45P5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT10A45P5-7 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 SDT10A45P5-7?
For technical support, including SDT10A45P5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT10A45P5-7 requirements.
6.How does Aetrix verify that SDT10A45P5-7 is sourced from the original manufacturer or authorized distributors?
All SDT10A45P5-7 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 SDT10A45P5-7 meets industry standards.
7.What is the process for return or replacement of SDT10A45P5-7?
All SDT10A45P5-7 units undergo pre-shipment inspection (PSI). If there is an issue with SDT10A45P5-7, 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 SDT10A45P5-7 part is unused and in its original packaging.
Return procedure for SDT10A45P5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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Diodes Incorporated
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