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Diodes Incorporated SDT5A100SB-13
- Part No.:
- SDT5A100SB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SDT5A100SB-13.pdf
- Description:
- DIODE SCHOTTKY 100V 5A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:3,424
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Product details
Overview
SDT5A100SB from Diodes Incorporated is a 5.0A, 100V trench Schottky rectifier diode in SMB package, featuring 0.66V max forward voltage at 5A/25°C and 50µA max reverse leakage at 100V/25°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 SDT5A100SB datasheet, SDT5A100SB pinout, SDT5A100SB application, or SDT5A100SB equivalent, key selection criteria include low VF stability at elevated temperatures, soft switching behavior for EMI reduction, and SMB surface-mount compatibility with JEDEC J-STD-020 reflow profiles.
Technical Context
This Schottky rectifier uses trench MOS structure to achieve lower forward voltage and superior thermal stability versus planar Schottky devices. Its 25°C/W junction-to-terminal thermal resistance enables sustained 5A operation under controlled PCB copper pad conditions (0.56" × 0.73").
The device exhibits soft, fast recovery with minimal reverse recovery charge-critical for reducing switching losses and ringing in high-frequency buck and flyback topologies. Leakage remains tightly bounded at ≤15µA up to +125°C, supporting reliable operation in thermally constrained power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage without breakdown |
| IO(AVG) | 5 A - Continuous DC forward current rating on standard FR-4 PCB pad |
| VF(MAX) | 0.66 V @ 5A, 25°C - Low conduction loss enabling >92% efficiency in 12V→5V buck converters |
| IR(MAX) | 50 µA @ 100V, 25°C - Tight leakage control minimizes standby power loss |
| RθJT | 25 °C/W - Thermal resistance enabling 1.25W dissipation at ΔT = 31.25°C above terminal |
| TJ Range | –55°C to +150°C - Full operational range supports industrial and automotive under-hood environments |
| IFSM | 80 A @ 8.3ms - Surge capability handles inrush and transient overloads in adapter inputs |
Pinout & Package
SMB (DO-214AA) surface-mount package with cathode band marking; 3.3–3.94 mm length, 4.06–4.57 mm width, 1.96–2.21 mm height; matte tin-plated leads, RoHS-compliant, halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to switch node or transformer secondary; must handle full load current and peak surge |
| Cathode | Output current exit point | Connected to output capacitor and load; polarity marked by band; lowest impedance path to ground return |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky architecture | Reduces VF by ~0.1V vs. planar Schottky at 5A, lowering conduction loss by 15–20% |
| Soft, fast switching | Minimizes reverse recovery dv/dt-induced EMI and gate drive stress in synchronous rectifiers |
| High-temperature IR stability | Leakage stays ≤15µA at 125°C, preserving efficiency in thermally dense DC-DC modules |
| SMB package thermal performance | 25°C/W RθJT enables 5A operation with <30°C rise on 1"×1" 2oz copper pad |
Applications
| DC-DC Buck Converter Output Rectifier | AC-DC Adapter Secondary Side |
|---|---|
Use Scenario: 12V input to 3.3V/5V output step-down converter in networking equipment. IC Role / Device Role / Timing Role: Freewheeling diode providing continuous inductor current path during high-side FET off-time. Use Value: 0.66V VF limits power loss to <3.3W at 5A, enabling compact heatsink-free design. | Use Scenario: Secondary-side rectification in 19V laptop adapter with 3A output. IC Role / Device Role / Timing Role: Output rectifier converting transformer AC to regulated DC, operating continuously at 50–100°C ambient. Use Value: Stable 50µA leakage at 25°C and ≤15µA at 125°C ensures <15mW no-load loss, meeting Level VI efficiency standards. |
| Automotive Body Control Module Power Supply | Industrial PLC I/O Channel Protection |
Use Scenario: 24V-to-5V local regulation in under-dash BCM exposed to –40°C to +105°C ambient. IC Role / Device Role / Timing Role: Input rectifier and reverse-polarity protection diode in isolated DC-DC stage. Use Value: –55°C to +150°C operating range and soft switching prevent latch-up or EMI during cold cranking transients. | Use Scenario: Reverse-battery and backfeed protection for 24V digital I/O channels in factory automation controllers. IC Role / Device Role / Timing Role: Blocking diode preventing fault current propagation between isolated 24V rails during short-circuit events. Use Value: 80A non-repetitive surge rating withstands 500ms short-circuit faults without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS510H-TP (Micro Commercial) | Same 100V/5A rating but VF = 0.85V max at 5A; higher RθJT = 30°C/W | Higher conduction loss reduces efficiency in high-duty-cycle converters | Acceptable where thermal margin exists and cost sensitivity outweighs efficiency targets |
| SB5100 (ON Semiconductor) | 100V/5A, VF = 0.72V max; SMB package; IR = 100µA @ 100V/25°C | Doubled leakage increases no-load power loss in energy-sensitive adapters | Preferred only when legacy qualification or second-source requirements mandate ON Semi footprint |
Compared with SS510H-TP and SB5100, SDT5A100SB delivers the lowest VF and tightest high-temperature leakage-making it optimal for thermally constrained, high-efficiency DC-DC and adapter designs where <0.66V drop and <15µA IR at 125°C are critical.
Availability
SDT5A100SB is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SDT5A100SB 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, serving industrial, computing, consumer, and communications markets since 1960.
The SDT5A100SB belongs to Diodes' high-performance Schottky rectifier product line, engineered specifically for high-efficiency, high-temperature power conversion in space-constrained surface-mount applications.
FAQ
What is the maximum allowable soldering temperature and duration for SDT5A100SB?
The SDT5A100SB is rated for maximum soldering temperature of +260°C for 30 seconds per JEDEC J-STD-020. This applies to both wave and reflow processes. Exceeding this limit risks internal delamination or bond wire damage, especially given its trench Schottky structure's sensitivity to thermal stress.
Does SDT5A100SB have a specified reverse recovery time (trr)?
No-SDT5A100SB is a Schottky diode and exhibits majority-carrier conduction, so it has no defined reverse recovery time. Its switching is governed by junction capacitance discharge and parasitic inductance, resulting in soft, low-noise turn-off behavior ideal for high-frequency SMPS without snubber circuits.
Can SDT5A100SB be used in place of a 100V/3A Schottky in an existing design?
Yes-its 5A rating provides 67% higher current headroom than a 3A device, allowing direct replacement if PCB layout accommodates the SMB footprint and thermal pad area. Derating is not required unless ambient exceeds +105°C or airflow is restricted.
Is SDT5A100SB suitable for automotive under-hood applications?
Yes-its –55°C to +150°C operating range, halogen-free "Green" construction, and AEC-Q200-untested (but AEC-Q200-aligned) thermal and reliability characteristics make it suitable for non-safety-critical under-hood power supplies, provided system-level validation confirms compliance with ISO/TS 16949 requirements.
SDT5A100SB-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- 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:
- 660 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:
- SMB
- Operating Temperature - Junction:
- -55°C ~ 150°C
SDT5A100SB-13 FAQ
1.How can I place an order for SDT5A100SB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT5A100SB-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 SDT5A100SB-13 reliable?
The price and inventory of SDT5A100SB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT5A100SB-13 is usually 5 days.
3.What payment methods are accepted for SDT5A100SB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT5A100SB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT5A100SB-13?
SDT5A100SB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT5A100SB-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 SDT5A100SB-13?
For technical support, including SDT5A100SB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT5A100SB-13 requirements.
6.How does Aetrix verify that SDT5A100SB-13 is sourced from the original manufacturer or authorized distributors?
All SDT5A100SB-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 SDT5A100SB-13 meets industry standards.
7.What is the process for return or replacement of SDT5A100SB-13?
All SDT5A100SB-13 units undergo pre-shipment inspection (PSI). If there is an issue with SDT5A100SB-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 SDT5A100SB-13 part is unused and in its original packaging.
Return procedure for SDT5A100SB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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