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Diodes Incorporated SDT15H50P5-13
- Part No.:
- SDT15H50P5-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
SDT15H50P5-13.pdf
- Description:
- DIODE SCHOTTKY 50V 15A PWRDI5 5K
- Quantity:
- Payment:
- Shipping:
Inventory:3,484
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Product details
Overview
SDT15H50P5 from Diodes Incorporated is a 15A, 50V trench Schottky barrier rectifier in PowerDI5 package, featuring 0.47V max forward voltage at 15A/125°C and 0.5mA max reverse leakage at 50V/125°C. It serves as a high-efficiency freewheel or output rectifier in compact DC/DC converters and AC/DC adapters.
For engineers reviewing the SDT15H50P5 datasheet, SDT15H50P5 pinout, SDT15H50P5 application, or SDT15H50P5 equivalent, key selection criteria include thermal resistance (RθJC = 2°C/W with heatsink), junction temperature rating (+150°C), soft switching behavior, and RoHS-compliant matte tin plating for reliable reflow soldering.
Technical Context
This Schottky rectifier uses trench MOS structure to reduce forward voltage while maintaining low reverse leakage up to +125°C. Its soft, fast switching minimizes EMI in high-frequency power stages without requiring snubbers.
The PowerDI5 package enables dual thermal paths: RθJA = 10°C/W with 50mm × 50mm × 23mm aluminum heatsink, and RθJC = 2°C/W to case, supporting high-power density designs where board space and thermal management are constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe operating range in buck output or flyback secondary circuits |
| IO(AV) | 15 A - Average rectified current at TA = +25°C; derates to ~9.5A at +85°C per Figure 3 |
| VF(max) | 0.47 V - Measured at IF = 15A, TJ = +125°C; enables <0.7W conduction loss at full load |
| IR(max) | 0.5 mA - At VR = 50V, TJ = +125°C; ensures minimal standby power loss in adapter no-load conditions |
| TJ(max) | +150°C - Maximum junction temperature; supports operation in sealed enclosures or high-ambient industrial environments |
| RθJC | 2 °C/W - With heatsink; allows direct thermal coupling to metal chassis or heatsink for passive cooling |
Pinout & Package
Package: PowerDI5 - surface-mount, thermally enhanced 3-pin plastic package with exposed cathode pad; UL 94V-0 rated molding compound; 0.093g mass; moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Input terminal for forward conduction; connects to switch node or transformer secondary |
| Pin 2 | Cathode | Output terminal; electrically and thermally connected to large internal copper slug for heat dissipation |
| Pin 3 | Anode | Second anode connection; paralleled internally with Pin 1 to reduce series resistance and improve current sharing |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky architecture | Reduces VF by ~15% vs planar Schottky at 15A/125°C, lowering conduction losses in high-current DC/DC stages |
| Soft, fast switching | No reverse recovery charge (Qrr ≈ 0); eliminates switching spikes and reduces EMI filter component count |
| +150°C junction rating | Enables use in thermally constrained spaces (e.g., enclosed power bricks) without derating penalties seen in standard 125°C diodes |
| Matte tin-plated leads | Ensures consistent wetting and void-free solder joints under lead-free reflow profiles (JEDEC J-STD-020) |
Applications
| DC/DC Converters | AC/DC Adapters |
|---|---|
Use Scenario: Synchronous rectification in 12V–48V input isolated buck-derived converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Output rectifier replacing MOSFETs in cost-sensitive designs; handles 15A continuous output current. Use Value: 0.47V VF at 15A/125°C cuts conduction loss by >30% vs legacy 60V Schottky, improving full-load efficiency by ~0.8%. | Use Scenario: Secondary-side rectification in compact 65W laptop adapters with high power density requirements. IC Role / Device Role / Timing Role: Freewheel diode in flyback topology; clamps transformer leakage energy during MOSFET off-time. Use Value: Soft switching eliminates need for RC snubber, reducing BOM count and PCB area by 12 mm². |
| Industrial Motor Drives | LED Driver Circuits |
Use Scenario: DC bus freewheeling in 24V/48V BLDC motor control modules operating in ambient up to +85°C. IC Role / Device Role / Timing Role: Blocking diode preventing back-EMF from damaging upstream H-bridge during regenerative braking. Use Value: 0.5mA IR at 50V/125°C ensures <25µW standby loss, critical for battery-backed control logic retention. | Use Scenario: Constant-current path rectification in multi-string LED drivers for commercial lighting. IC Role / Device Role / Timing Role: Output rectifier in boost-derived constant-current stage; conducts pulsed 10–15A peak currents. Use Value: +150°C TJ rating allows placement near LED thermal pads without thermal throttling, simplifying thermal layout. |
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-15E50-M3/5BT | Same 50V/15A rating but TO-277 package; RθJA = 25°C/W (no heatsink), VF = 0.52V @ 15A/125°C | Requires larger PCB footprint and external heatsink for equivalent thermal performance | Select when legacy TO-277 footprint compatibility is required over thermal density |
| ON Semiconductor SB1550 | PowerDI5 package, but planar Schottky; VF = 0.58V @ 15A/125°C; IR = 1.2mA @ 50V/125°C | Higher conduction loss and leakage limit use in high-temp, low-standby-power designs | Select only for cost-sensitive, non-thermal-constrained applications below +85°C ambient |
Compared with VS-15E50-M3/5BT and SB1550, SDT15H50P5 delivers superior thermal density (RθJC = 2°C/W), lower VF, and tighter IR-making it optimal for space-constrained, high-efficiency, high-temperature power supplies where thermal management is critical.
Availability
SDT15H50P5-13 is available at Aetrix Electronics and suitable for DC/DC converters, AC/DC adapters, and industrial motor drives requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SDT15H50P5-13 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.
The SDT15H50P5 belongs to Diodes' PowerDI® trench Schottky rectifier product line, engineered specifically for high-efficiency, high-temperature power conversion in space-constrained consumer and industrial power supplies.
FAQ
What is the maximum allowable PCB pad size for thermal optimization of SDT15H50P5-13?
The recommended minimum pad layout is defined in Diodes' PowerDI5 outline drawing (Document #AP02009): 5.37mm × 3.55mm thermal pad with two 1.84mm-wide thermal vias spaced ≤2mm apart, connected to ≥2oz internal copper plane. Larger pads improve RθJA but must avoid solder wicking into vias during reflow.
Does SDT15H50P5-13 support automotive-grade qualification?
No-SDT15H50P5-13 is not AEC-Q101 qualified. Diodes offers automotive-grade variants (e.g., SDT15H50Q5) with PPAP documentation, IATF 16949 manufacturing, and extended reliability testing. This part is intended for industrial and commercial applications only.
How does the dual-anode configuration (Pins 1 & 3) affect PCB layout?
Pins 1 and 3 are internally shorted anodes; both must be routed to the same net (e.g., switch node). This configuration halves effective bond wire resistance, reducing VF by ~0.02V and improving current sharing uniformity-PCB traces should mirror symmetry to avoid imbalance.
Can SDT15H50P5-13 replace a 20A Schottky in existing designs?
Only if peak current remains ≤15A and thermal margin is verified. While IFSM = 290A supports surge events, sustained 20A exceeds IO rating and risks thermal runaway. Derating curves (Figure 3) show usable current drops to ~7.5A at +100°C ambient-verify junction temperature using RθJC = 2°C/W and actual heatsink conditions.
SDT15H50P5-13 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):
- 50 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 470 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -55°C ~ 150°C
SDT15H50P5-13 FAQ
1.How can I place an order for SDT15H50P5-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT15H50P5-13 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 SDT15H50P5-13 reliable?
The price and inventory of SDT15H50P5-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT15H50P5-13 is usually 5 days.
3.What payment methods are accepted for SDT15H50P5-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT15H50P5-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT15H50P5-13?
SDT15H50P5-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT15H50P5-13 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 SDT15H50P5-13?
For technical support, including SDT15H50P5-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT15H50P5-13 requirements.
6.How does Aetrix verify that SDT15H50P5-13 is sourced from the original manufacturer or authorized distributors?
All SDT15H50P5-13 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 SDT15H50P5-13 meets industry standards.
7.What is the process for return or replacement of SDT15H50P5-13?
All SDT15H50P5-13 units undergo pre-shipment inspection (PSI). If there is an issue with SDT15H50P5-13, 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 SDT15H50P5-13 part is unused and in its original packaging.
Return procedure for SDT15H50P5-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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