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Diodes Incorporated SDT5100LP5-13D
- Part No.:
- SDT5100LP5-13D
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
SDT5100LP5-13D.pdf
- Description:
- DIODE SCHOTTKY 100V 5A POWERDI 5
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
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Product details
Overview
SDT5100LP5-13D from Diodes Incorporated is a 100 V, 5 A Trench Schottky barrier rectifier in PowerDI5 package, featuring 0.82 V max forward voltage at 5 A and 4 µA max reverse leakage at 100 V/125°C. It serves as a high-efficiency freewheel or output rectifier in DC-DC converters and AC-DC adapters operating up to +150°C junction temperature.
For engineers reviewing the SDT5100LP5-13D datasheet, SDT5100LP5-13D pinout, SDT5100LP5-13D application, or SDT5100LP5-13D equivalent, this part is selected for low-loss power conversion where thermal stability, soft switching, and compact footprint are critical in space-constrained industrial and consumer power supplies.
Technical Context
This Schottky rectifier uses trench MOS structure to reduce forward voltage while maintaining low reverse leakage across temperature. Its 9 °C/W typical RθJC enables efficient heat transfer to PCB copper or aluminum substrate, supporting sustained 5 A operation under ambient temperatures up to +85°C with proper layout.
The device exhibits soft, fast recovery (no minority carrier storage) and stable capacitance (≈100 pF at 0 V, decreasing to ≈30 pF at 50 V), making it suitable for high-frequency switching topologies like synchronous buck and flyback converters without inducing ringing or EMI spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - blocks full-wave rectified AC inputs up to 70 V RMS or DC bus voltages up to 100 V without breakdown. |
| IO | 5 A - continuous average forward current rating on FR-4 PCB with 2 oz copper, sufficient for mid-power 12–24 V output rails. |
| VF (max) | 0.82 V @ 5 A, 25°C - reduces conduction loss to ≤4.1 W per diode, improving efficiency over standard silicon rectifiers by ≥30%. |
| IR (max) | 4 µA @ 100 V, 125°C - ensures minimal standby power loss and stable blocking in high-temp environments like enclosed adapters. |
| TJ (max) | +150°C - allows operation in thermally demanding locations such as near transformers or MOSFETs without derating below rated current. |
| RθJC | 9 °C/W - enables direct thermal coupling to heatsink or metal-core PCB, supporting >4 W dissipation with <36°C temperature rise above case. |
Pinout & Package
Package: PowerDI5 - surface-mount, 3-terminal thermally enhanced plastic package with exposed cathode pad (Pin 2), anode (Pin 1), and auxiliary cathode connection (Pin 3). Dimensions: 3.966 mm × 6.504 mm × 0.85 mm; weight 0.093 g; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Main current entry point; connects to input/high-side node in buck/flyback secondary or freewheel path. |
| Pin 2 | Cathode (Exposed Pad) | Primary current exit and thermal interface; must be soldered to ≥100 mm² copper pour for optimal RθJA = 18 °C/W. |
| Pin 3 | Cathode (Secondary Terminal) | Redundant cathode connection for lower inductance routing; used in parallel with Pin 2 to minimize loop inductance in high-dI/dt applications. |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky architecture | Enables 0.74 V typical VF at 5 A/125°C - cuts conduction loss vs planar Schottky by ~15%, directly increasing converter efficiency. |
| Soft, fast switching | No reverse recovery charge (Qrr ≈ 0) - eliminates switching loss and EMI associated with hard-recovery diodes in 300 kHz–1 MHz converters. |
| +150°C operating junction | Rated for full 5 A current at TJ = 150°C - supports compact, sealed designs without forced air cooling. |
| Lead-free & halogen-free | RoHS 2 compliant with <900 ppm Br/Cl and <1000 ppm Sb - meets IPC-1752A material declaration requirements for automotive and industrial end equipment. |
Applications
| DC-DC Converters | AC-DC Adapters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 300 kHz buck converter delivering 5 V/4 A from 12 V input. IC Role / Device Role / Timing Role: Output rectifier replacing MOSFET gate driver + FET; conducts during low-side switch ON time. Use Value: 0.76 V VF at 25°C reduces output stage loss by 1.5 W vs. Si diode, enabling >92% efficiency at full load without heatsink. | Use Scenario: Output rectification in 65 kHz flyback adapter powering IoT gateway (12 V/1.5 A). IC Role / Device Role / Timing Role: Freewheel diode clamping transformer leakage energy and conducting output current during primary OFF time. Use Value: 4 µA IR at 125°C limits no-load input power to <30 mW, meeting DOE Level VI standby requirements. |
| Industrial Power Supplies | Consumer Charging Systems |
Use Scenario: Input bridge rectification in 24 V/3 A isolated forward converter for PLC I/O module. IC Role / Device Role / Timing Role: Blocking diode preventing reverse current flow during transient overvoltage events on 24 V rail. Use Value: 100 V VRRM withstands 30 V surge transients per IEC 61000-4-5, eliminating need for external TVS clamping. | Use Scenario: USB-C PD 20 W adapter (9 V/2.22 A) with active clamp flyback topology. IC Role / Device Role / Timing Role: Secondary-side rectifier operating at 150 kHz with 50 ns switching transitions. Use Value: Soft recovery eliminates 30–50 MHz ringing, reducing conducted EMI and easing CISPR 32 Class B compliance. |
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-50WQ03FNTR-M3 | 30 V VRRM, 5 A, 0.45 V VF max @ 5 A - lower voltage rating but lower forward drop. | Restricted to ≤30 V output rails; unsuitable for 48 V systems or 100 V surge-tolerant designs. | Select only when system VIN and transients stay below 30 V and ultra-low VF is prioritized over voltage margin. |
| ON Semiconductor SB5100 | 100 V VRRM, 5 A, 0.85 V VF max @ 5 A, TO-220AC package - higher thermal resistance (RθJC = 15 °C/W). | Requires heatsink for >2.5 A continuous use; incompatible with ultra-thin or double-sided PCB layouts. | Choose only when through-hole assembly or legacy TO-220 footprint is mandatory and board space is unconstrained. |
Compared with VS-50WQ03FNTR-M3 and SB5100, SDT5100LP5-13D uniquely balances 100 V rating, 0.82 V VF, +150°C operation, and PowerDI5's 9 °C/W RθJC - making it optimal for compact, high-temperature, medium-voltage DC-DC and adapter designs where thermal density and reliability are critical.
Availability
SDT5100LP5-13D is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and industrial power supplies requiring stable component supply, RoHS-compliant packaging, and consistent thermal performance across production batches.
Supply support for SDT5100LP5-13D 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 SDT5100LP5 belongs to Diodes' Power Discrete product line, engineered specifically for high-efficiency, high-reliability power conversion in space- and thermal-constrained applications such as consumer adapters, industrial SMPS, and automotive body electronics.
FAQ
What is the maximum allowable PCB pad size for optimal thermal performance of SDT5100LP5-13D?
The datasheet specifies a minimum 2 oz copper pad layout per Diodes' package outline document PN-00001. For RθJA = 18 °C/W, a 25 mm² (5 mm × 5 mm) exposed cathode pad is required. Larger pads (≥100 mm²) reduce RθJA to 88 °C/W on standard FR-4, but thermal simulation is recommended for layouts exceeding 200 mm² due to diminishing returns and solder wicking risk.
Does SDT5100LP5-13D support reflow soldering per J-STD-020, and what is its MSL rating?
Yes - SDT5100LP5-13D is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be subjected to standard Pb-free reflow profiles (peak 260°C, 20–40 sec) without baking. The PowerDI5 package uses moisture-resistant green molding compound and passes JEDEC humidity testing at 85°C/85% RH for 168 hours.
Can SDT5100LP5-13D be paralleled with identical units to increase current handling?
Yes - the device's positive temperature coefficient of forward voltage (VF increases with TJ) enables natural current sharing. Parallel operation requires matched trace lengths, symmetric thermal vias under each cathode pad, and ≤2°C inter-device TJ delta. Derate total current by 15% versus sum of individual IO ratings to account for layout asymmetry.
Is there a SPICE model available for SDT5100LP5-13D, and where can it be downloaded?
Diodes Incorporated provides a PSpice-compatible behavioral model for SDT5100LP5 on its official website under "Design Resources" for the SDT5100LP5 product page. The model includes temperature-dependent VF, IR, and CT characteristics extracted from DS39446 Rev. 2 test data, validated from -55°C to +150°C.
SDT5100LP5-13D 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):
- 100 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 820 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 4 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -55°C ~ 150°C
SDT5100LP5-13D FAQ
1.How can I place an order for SDT5100LP5-13D through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT5100LP5-13D 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 SDT5100LP5-13D reliable?
The price and inventory of SDT5100LP5-13D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT5100LP5-13D is usually 5 days.
3.What payment methods are accepted for SDT5100LP5-13D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT5100LP5-13D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT5100LP5-13D?
SDT5100LP5-13D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT5100LP5-13D 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 SDT5100LP5-13D?
For technical support, including SDT5100LP5-13D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT5100LP5-13D requirements.
6.How does Aetrix verify that SDT5100LP5-13D is sourced from the original manufacturer or authorized distributors?
All SDT5100LP5-13D 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 SDT5100LP5-13D meets industry standards.
7.What is the process for return or replacement of SDT5100LP5-13D?
All SDT5100LP5-13D units undergo pre-shipment inspection (PSI). If there is an issue with SDT5100LP5-13D, 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 SDT5100LP5-13D part is unused and in its original packaging.
Return procedure for SDT5100LP5-13D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDT5100LP5-13D Tags
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