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Diodes Incorporated SDM1100S1F-7
- Part No.:
- SDM1100S1F-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
SDM1100S1F-7.pdf
- Description:
- DIODE SCHOTTKY 100V 1A SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:53,738
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Product details
Overview
SDM1100S1F-7 from Diodes Incorporated is a surface-mount Schottky barrier diode in SOD123F (Type B) package, rated for 100 V peak repetitive reverse voltage and 1.0 A average rectified output current, with maximum forward voltage of 0.82 V at 1 A and +25°C, used as a boost or blocking diode in DC-DC converters and power supplies.
For engineers reviewing the SDM1100S1F-7 datasheet, SDM1100S1F-7 pinout, SDM1100S1F-7 application, or SDM1100S1F-7 equivalent, key selection criteria include low VF for efficiency, high-temperature IR stability up to +125°C, and SOD123F footprint compatibility with space-constrained PCB layouts.
Technical Context
This Schottky diode employs a platinum-silicide or similar low-barrier metal-semiconductor junction to achieve fast switching (no minority-carrier storage) and low forward conduction loss. Its thermal resistance is 85 °C/W (junction-to-ambient, on 1-inch² copper pad), enabling operation up to +150°C junction temperature.
Reverse leakage remains tightly controlled-5 µA max at 100 V and +25°C, dropping to 0.11 mA at +125°C-supporting stable performance in thermally demanding environments such as automotive under-hood or industrial power modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - supports input rectification in 48 V nominal systems with 2× safety margin |
| IO | 1.0 A - continuous DC output capability for low-power SMPS and auxiliary rails |
| VF max | 0.82 V @ 1 A, +25°C - reduces conduction loss to ≤0.82 W per diode at full load |
| IR max | 5 µA @ 100 V, +25°C - ensures minimal standby power loss in always-on circuits |
| TJ range | –55°C to +150°C - qualified for extended industrial and automotive ambient conditions |
| CT | 28 pF @ 4 V, 1 MHz - limits high-frequency noise coupling in switching node applications |
| RθJA | 85 °C/W (on 1″² Cu) - enables 1.0 A operation without forced air at ≤+70°C ambient |
Pinout & Package
SOD123F (Type B) is a compact, surface-mount plastic package measuring 3.90 mm × 1.90 mm × 1.50 mm (L × W × H), with cathode band marking on the top surface and matte tin-plated copper leadframe terminals solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., ground or switch node return) |
| Cathode | Current exit point during forward conduction; marked by band | Connected to higher-potential node (e.g., output rail or boost capacitor) |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.82 V max at 1 A reduces power loss by >30% vs. standard PN diodes in same package |
| High-temperature IR stability | 0.11 mA leakage at +125°C prevents thermal runaway in sealed enclosures |
| Green RoHS-compliant construction | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets IEC 61249-2-21 |
| SOD123F footprint | Standardized 3.9 mm × 1.9 mm land pattern enables drop-in replacement and automated assembly |
Applications
| Boost Converter Diode | USB Power Delivery Clamp |
|---|---|
Use Scenario: Used in non-isolated boost regulators to transfer energy from input to output capacitor during switch-off phase. IC Role / Device Role: Unidirectional current path enabling inductor energy transfer and output voltage step-up. Use Value: 0.82 V VF minimizes duty-cycle extension and improves efficiency above 90% at 5 V → 9 V conversion. | Use Scenario: Placed across VBUS and GND in USB PD sink designs to clamp transient overvoltage events. IC Role / Device Role: Reverse-biased blocking element that conducts only during fault conditions. Use Value: 100 V VRRM withstands 20 V surge transients while 5 µA leakage avoids false triggering in low-power sleep states. |
| LED Driver Blocking Diode | Industrial Sensor Supply Rail |
Use Scenario: Prevents backfeed from LED string into constant-current driver during shutdown or fault. IC Role / Device Role: Isolation diode ensuring unidirectional power flow in multi-string configurations. Use Value: Low VF avoids unnecessary voltage headroom loss, preserving margin for dimming control circuitry. | Use Scenario: Supplies isolated 3.3 V or 5 V rail to analog sensor front-ends in PLC I/O modules. IC Role / Device Role: Output rectifier in flyback or buck-derived auxiliary supply. Use Value: –55°C to +150°C TJ rating ensures reliability in unventilated control cabinets with ambient up to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB1100-TB | Same VRRM/IO, but VF = 0.85 V max; SOD-123 package (slightly larger footprint) | Higher VF increases conduction loss by ~40 mW at 1 A; less suitable for thermally constrained layouts | Prefer SDM1100S1F-7 where board space or efficiency is critical |
| SS110H | 100 V/1 A, VF = 0.83 V max, but rated only to +125°C junction (vs. +150°C) | Limited high-temp reliability in sealed enclosures or automotive under-hood use | Choose SDM1100S1F-7 for applications requiring full +150°C operation |
Compared with SB1100-TB and SS110H, SDM1100S1F-7 delivers superior thermal robustness (TJ = +150°C), tighter leakage control at elevated temperature, and optimized SOD123F footprint for high-density routing.
Availability
SDM1100S1F-7 is available at Aetrix Electronics and suitable for DC-DC boost converters, USB PD protection circuits, LED driver isolation, and industrial sensor power rails requiring stable component supply and long-term manufacturability.
Supply support for SDM1100S1F-7 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 Dallas, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The SDM1100S1F-7 belongs to Diodes' high-efficiency Schottky rectifier product line, engineered specifically for space- and thermally constrained power conversion in consumer, industrial, and computing applications.
FAQ
What is the maximum surge current rating for SDM1100S1F-7?
The SDM1100S1F-7 is rated for 50 A non-repetitive peak forward surge current (IFSM) under an 8.3 ms single half-sine-wave condition, tested with superimposed rated load. This rating applies to short-duration inrush or fault events, not continuous operation.
Does SDM1100S1F-7 have a specified junction capacitance?
Yes, typical junction capacitance (CT) is 28 pF measured at 4 V reverse bias and 1 MHz. This value decreases with increasing reverse voltage and impacts high-frequency switching noise and EMI filtering design in boost or flyback topologies.
Is SDM1100S1F-7 suitable for automotive applications?
While not AEC-Q101 qualified, SDM1100S1F-7 operates reliably from –55°C to +150°C junction temperature and exhibits low high-temperature leakage (0.11 mA at +125°C), making it suitable for non-safety-critical automotive subsystems like infotainment power supplies when validated per system-level requirements.
How does the SOD123F package differ from standard SOD-123?
SOD123F (Type B) has identical outline dimensions to SOD-123 but features a flatter, more uniform profile and tighter mold compound tolerances. Its 3.90 mm × 1.90 mm footprint and 1.50 mm height optimize thermal dissipation and reflow yield, especially in fine-pitch automated assembly lines.
SDM1100S1F-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 820 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 150°C
SDM1100S1F-7 FAQ
1.How can I place an order for SDM1100S1F-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDM1100S1F-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 SDM1100S1F-7 reliable?
The price and inventory of SDM1100S1F-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDM1100S1F-7 is usually 5 days.
3.What payment methods are accepted for SDM1100S1F-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDM1100S1F-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDM1100S1F-7?
SDM1100S1F-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDM1100S1F-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 SDM1100S1F-7?
For technical support, including SDM1100S1F-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDM1100S1F-7 requirements.
6.How does Aetrix verify that SDM1100S1F-7 is sourced from the original manufacturer or authorized distributors?
All SDM1100S1F-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 SDM1100S1F-7 meets industry standards.
7.What is the process for return or replacement of SDM1100S1F-7?
All SDM1100S1F-7 units undergo pre-shipment inspection (PSI). If there is an issue with SDM1100S1F-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 SDM1100S1F-7 part is unused and in its original packaging.
Return procedure for SDM1100S1F-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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