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Diodes Incorporated SDT5100D1-13
- Part No.:
- SDT5100D1-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
SDT5100D1-13.pdf
- Description:
- DIODE SCHOTTKY 100V 5A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
SDT5100D1 from Diodes Incorporated is a 100 V, 5 A Trench Schottky rectifier in TO252 (DPAK) package, featuring 0.65 V max forward voltage at 5 A and 15 µA max reverse leakage at 100 V and +125°C. It serves as a freewheel or blocking diode in DC-DC converters and AC-DC adapters where low conduction loss and high-temperature stability are critical.
For engineers reviewing the SDT5100D1 datasheet, SDT5100D1 pinout, SDT5100D1 application, or SDT5100D1 equivalent, key selection criteria include forward voltage at rated current, reverse leakage at elevated temperature, thermal resistance (2.5 °C/W), junction-to-case thermal path, and TO252 mechanical compatibility with high-power PCB layouts.
Technical Context
This Schottky rectifier uses trench MOS structure to achieve lower VF and superior IR stability versus planar Schottky diodes. Its 100 V VRRM rating supports 48 V input DC-DC stages and universal AC-DC front-end designs.
Thermal performance is optimized for surface-mount power dissipation: RθJC = 2.5 °C/W enables 5 A continuous operation at TC ≤ 110°C per derating curve, and soft switching behavior minimizes EMI in synchronous buck freewheel paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Withstands peak reverse transients up to 100 V without breakdown in DC-DC or adapter output stages. |
| IO (AV) | 5 A - Sustains average forward current of 5 A at TC = 110°C, enabling compact 25–50 W power supplies. |
| VF (MAX) | 0.65 V @ 5 A, +25°C - Reduces conduction loss to <3.25 W at full load, improving efficiency over silicon diodes. |
| IR (MAX) | 15 µA @ 100 V, +125°C - Ensures minimal standby leakage in hot environments, critical for energy-efficient adapters. |
| RθJC | 2.5 °C/W - Enables direct thermal coupling to copper pour or heatsink, supporting >4 W dissipation with <10°C rise. |
| IFSM | 80 A @ 8.3 ms - Withstands typical inrush surges in offline SMPS without degradation. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, single-ended anode-cathode configuration with exposed cathode pad for thermal and electrical connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to switch node or transformer secondary; requires low-inductance trace routing. |
| Cathode (Lead 2) | Output current exit point | Electrically and thermally tied to large copper area; primary heat path to PCB. |
| Exposed Pad (Lead 3) | Cathode extension | Integral part of cathode terminal; must be soldered to ≥250 mm² 2-oz copper for RθJC compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky architecture | Enables 0.65 V VF at 5 A while maintaining <15 µA IR at +125°C - outperforms planar Schottky in thermal robustness. |
| Soft, fast switching | Minimizes reverse recovery ringing and EMI in high-frequency (>300 kHz) buck converters without snubbers. |
| TO252 thermal design | 2.5 °C/W RθJC allows 5 A operation with only PCB copper cooling - eliminates need for discrete heatsinks. |
| Green, RoHS-compliant construction | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets IEC 61249-2-21 and JEDEC J-STD-020. |
Applications
| DC-DC Converters | AC-DC Adapters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 12 V/5 A isolated flyback or forward converter. IC Role / Device Role / Timing Role: Freewheel diode conducting during low-side switch off-time; handles 5 A average current with minimal loss. Use Value: 0.65 V VF reduces conduction loss by ~40% vs. 1 V Si diode, increasing efficiency from 87% to 90.5% at full load. | Use Scenario: Output rectification in universal-input (90–264 VAC) 24 V/2.1 A laptop adapter. IC Role / Device Role / Timing Role: Blocking diode isolating transformer secondary from output capacitor during switch-off phase. Use Value: 15 µA IR at +125°C prevents >10 mW standby loss increase under high ambient, meeting DOE Level VI requirements. |
| Industrial Power Supplies | Telecom DC-DC Modules |
Use Scenario: Input OR-ing diode in redundant 48 V backplane supply with forced-air cooling. IC Role / Device Role / Timing Role: Unidirectional current gate preventing reverse current flow between parallel supplies. Use Value: Low VF ensures <0.5°C temperature rise across diode at 5 A, avoiding thermal runaway in multi-rail systems. | Use Scenario: Buck post-regulator rectifier in 48 V to 3.3 V intermediate bus converter operating at 500 kHz. IC Role / Device Role / Timing Role: High-frequency freewheel path with soft recovery to suppress 100–300 MHz EMI peaks. Use Value: Soft switching eliminates need for RC snubber, reducing BOM count and board space by 12 mm². |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VSS5100M | Same 100 V/5 A rating; VF = 0.67 V @ 5 A, +25°C; RθJC = 3.0 °C/W. | Slightly higher VF and thermal resistance reduce efficiency margin in thermally constrained layouts. | Prefer when existing VSS5100M footprint is fixed and minor efficiency trade-off is acceptable. |
| ON Semiconductor SB5100 | Planar Schottky; VF = 0.72 V @ 5 A, +25°C; IR = 100 µA @ 100 V, +125°C. | Higher leakage limits use in high-temp industrial adapters; softer switching not guaranteed. | Select only for cost-sensitive, non-thermally demanding applications below 85°C ambient. |
Compared with VSS5100M and SB5100, SDT5100D1 delivers the lowest combined VF/IR/thermal resistance profile - making it optimal for high-efficiency, high-temperature DC-DC and adapter designs where reliability and power density are prioritized.
Availability
SDT5100D1 is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and industrial power supplies requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for SDT5100D1 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, specializing in high-performance power management, signal integrity, and protection solutions.
The SDT5100D1 belongs to Diodes' Trench Schottky Rectifier product line, engineered specifically for high-efficiency, high-temperature power conversion in compact, thermally demanding applications.
FAQ
What is the maximum junction temperature for continuous operation?
The SDT5100D1 has an operating junction temperature range of –55°C to +175°C. For continuous 5 A operation, case temperature must be limited to ≤110°C per the derating curve in Figure 4 - this corresponds to a maximum junction temperature of approximately +145°C with RθJC = 2.5 °C/W and 4 W dissipation.
Is the TO252 package lead-free and RoHS compliant?
Yes. The SDT5100D1 features matte tin annealed terminals over copper leadframe and complies with EU RoHS Directive 2011/65/EU. It is also halogen- and antimony-free ("Green"), with bromine/chlorine <900 ppm and antimony <1000 ppm per Diodes Incorporated's specification.
How does the soft switching behavior benefit EMI performance?
Soft switching minimizes abrupt current reversal and associated dI/dt-induced ringing. Measured waveforms show reduced high-frequency spectral content above 100 MHz compared to standard Schottky diodes - lowering conducted and radiated EMI in buck converters without added snubbers or filters.
Can SDT5100D1 replace a 100 V, 5 A silicon PN diode directly?
No direct replacement: while VRRM and IO match, the SDT5100D1 has no reverse recovery time (trr ≈ 0 ns) but higher reverse leakage than silicon. Layout must accommodate lower VF (reduced trace width needed) and ensure thermal pad soldering - silicon diode footprints rarely provide adequate copper area for its RθJC requirement.
SDT5100D1-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- 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:
- 650 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
- Operating Temperature - Junction:
- -55°C ~ 175°C
SDT5100D1-13 FAQ
1.How can I place an order for SDT5100D1-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT5100D1-13 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 SDT5100D1-13 reliable?
The price and inventory of SDT5100D1-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT5100D1-13 is usually 5 days.
3.What payment methods are accepted for SDT5100D1-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT5100D1-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT5100D1-13?
SDT5100D1-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT5100D1-13 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 SDT5100D1-13?
For technical support, including SDT5100D1-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT5100D1-13 requirements.
6.How does Aetrix verify that SDT5100D1-13 is sourced from the original manufacturer or authorized distributors?
All SDT5100D1-13 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 SDT5100D1-13 meets industry standards.
7.What is the process for return or replacement of SDT5100D1-13?
All SDT5100D1-13 units undergo pre-shipment inspection (PSI). If there is an issue with SDT5100D1-13, 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 SDT5100D1-13 part is unused and in its original packaging.
Return procedure for SDT5100D1-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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