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Diodes Incorporated SDM1U100S1F-7
- Part No.:
- SDM1U100S1F-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
SDM1U100S1F-7.pdf
- Description:
- DIODE SCHOTTKY 100V 1A SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,076
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Product details
Overview
SDM1U100S1F-7 from Diodes Incorporated is a 100 V, 1 A surface-mount Schottky barrier rectifier in SOD123F package, featuring 0.77 V max forward voltage at 1 A and 0.15 µA max reverse leakage at 100 V and +25°C. It serves as a boost or blocking diode in DC-DC converters and power supplies where low conduction loss and high surge tolerance are required.
For engineers reviewing the SDM1U100S1F-7 datasheet, SDM1U100S1F-7 pinout, SDM1U100S1F-7 application, or SDM1U100S1F-7 equivalent, key selection criteria include its AEC-Q101 qualification, 50 A non-repetitive surge rating, interlocking clip construction, and thermal resistance of 100 °C/W (J-A, Note 6).
Technical Context
This Schottky rectifier uses guard ring die construction to enhance transient robustness and suppress avalanche-induced failure. Its low VF and low IR stem from optimized metal-semiconductor junction design and annealed matte tin terminals on copper leadframe.
The SOD123F package enables compact layout with 0.015 g mass and UL 94V-0 flammability rating. Thermal performance is specified for two PCB pad configurations: RθJA = 120 °C/W (1"×1") and 100 °C/W (0.4"×0.5"), supporting reliable operation up to +175°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - blocks up to 100 V reverse bias without breakdown |
| IO | 1 A - continuous average forward current rating at +25°C ambient |
| VF Max | 0.77 V @ 1 A, +25°C - limits conduction loss to ≤770 mW per diode |
| IR Max | 0.15 µA @ 100 V, +25°C - ensures minimal standby power loss in blocking mode |
| IFSM | 50 A @ 8.3 ms half-sine - withstands high-energy input surges in SMPS front-end |
| CT | 42 pF @ 4 V, 1 MHz - low junction capacitance minimizes switching noise in high-frequency rectification |
| RθJA | 100 °C/W - thermal resistance on 0.4"×0.5" 2 oz copper pad enables 1 A operation up to +85°C ambient |
Pinout & Package
Package: SOD123F (Standard) - surface-mount plastic case, 0.015 g mass, cathode indicated by bar marking, UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in boost converter) |
| Cathode | Forward current exit / reverse blocking terminal | Marked with bar; connects to output rail or filter capacitor positive terminal |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient immunity without external TVS, reducing BOM count in automotive-grade designs |
| Interlocking clip design | Enables 50 A surge current handling while maintaining mechanical stability under thermal cycling |
| AEC-Q101 qualification | Validated for automotive under-hood applications including engine control and body electronics |
| Halogen- and antimony-free "Green" material | Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - compliant with global environmental directives |
Applications
| Boost Converter Diode | USB Power Delivery Blocking |
|---|---|
Use Scenario: High-efficiency step-up conversion in portable battery-powered systems. IC Role / Device Role / Timing Role: Boost diode conducting during MOSFET off-time to charge output capacitor. Use Value: 0.77 V VF reduces conduction loss vs. standard PN diodes, improving efficiency by ≥3% at 1 A load. | Use Scenario: Reverse polarity protection in USB PD 3.0 source ports. IC Role / Device Role / Timing Role: Blocking diode preventing backfeed from downstream devices into the PD controller supply rail. Use Value: 0.15 µA IR ensures negligible standby current draw, preserving system quiescent power budget. |
| Automotive LED Driver Output | Industrial SMPS Input Stage |
Use Scenario: Output rectification in constant-current LED drivers for headlamps and DRLs. IC Role / Device Role / Timing Role: Freewheeling path for inductor current during PWM off-cycles. Use Value: AEC-Q101 qualification and +175°C TJ rating support operation in high-temperature engine bay environments. | Use Scenario: Input rectification in 24 V industrial DC-DC modules with wide ambient range. IC Role / Device Role / Timing Role: AC-to-DC bridge leg or single-phase rectifier feeding bulk capacitor. Use Value: 50 A IFSM withstands line surge events per IEC 61000-4-5, reducing need for upstream fusing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS110H-TP (Micro Commercial) | VF = 0.85 V @ 1 A; IFSM = 30 A; no AEC-Q101 qualification | Not suitable for automotive under-hood use; acceptable for consumer-grade adapters | Select when cost sensitivity outweighs surge and qualification requirements |
| SB1100-E3/52 (Vishay) | VF = 0.82 V @ 1 A; RθJA = 130 °C/W; SOD-123 package (not SOD123F) | Slightly higher thermal resistance; lacks interlocking clip for surge robustness | Choose if legacy SOD-123 footprint compatibility is mandatory over surge margin |
Compared with SS110H-TP and SB1100-E3/52, SDM1U100S1F-7 delivers superior surge capability (50 A), lower forward drop (0.77 V), and automotive qualification-making it optimal for space-constrained, high-reliability power stages where thermal and transient margins are critical.
Availability
SDM1U100S1F-7 is available at Aetrix Electronics and suitable for boost converters, USB PD blocking circuits, automotive LED drivers, and industrial SMPS input stages requiring stable component supply and AEC-Q101 compliance.
Supply support for SDM1U100S1F-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 Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The SDM1U100S1F belongs to Diodes' high-efficiency Schottky rectifier product line, engineered for automotive, industrial, and computing power supplies demanding low VF, high surge tolerance, and environmental compliance.
FAQ
What is the maximum operating junction temperature for SDM1U100S1F-7?
The SDM1U100S1F-7 has an operating junction temperature range of –55°C to +175°C, verified per datasheet DS39041 Rev. 4–2. This rating supports use in under-hood automotive environments and high-ambient industrial enclosures without derating below full 1 A current at +85°C ambient on recommended PCB layout.
Is SDM1U100S1F-7 compatible with lead-free reflow soldering processes?
Yes. The device features matte tin finish annealed over copper leadframe and is qualified for lead-free reflow per JEDEC J-STD-020, with moisture sensitivity level (MSL) 1. No pre-baking is required, and it withstands peak reflow temperatures up to 260°C per industry-standard profiles.
How does the SOD123F package differ from standard SOD-123?
The SOD123F package has tighter dimensional tolerances and enhanced thermal performance due to optimized clip geometry and internal interlocking structure. Compared to standard SOD-123, SOD123F achieves 20% lower RθJA (100 vs. 120 °C/W) and higher IFSM (50 A vs. typical 30–40 A), enabling higher power density in same footprint.
Can SDM1U100S1F-7 be used in reverse polarity protection circuits?
Yes. With only 0.77 V forward drop at 1 A and 0.15 µA reverse leakage at 100 V, it provides efficient unidirectional conduction in series-connected reverse polarity protection schemes. Its AEC-Q101 rating further validates reliability in automotive battery-input applications where reverse connection risk exists.
SDM1U100S1F-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:
- 770 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 150 nA @ 100 V
- Capacitance @ Vr, F:
- 42pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 175°C
SDM1U100S1F-7 FAQ
1.How can I place an order for SDM1U100S1F-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDM1U100S1F-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 SDM1U100S1F-7 reliable?
The price and inventory of SDM1U100S1F-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDM1U100S1F-7 is usually 5 days.
3.What payment methods are accepted for SDM1U100S1F-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDM1U100S1F-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDM1U100S1F-7?
SDM1U100S1F-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDM1U100S1F-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 SDM1U100S1F-7?
For technical support, including SDM1U100S1F-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDM1U100S1F-7 requirements.
6.How does Aetrix verify that SDM1U100S1F-7 is sourced from the original manufacturer or authorized distributors?
All SDM1U100S1F-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 SDM1U100S1F-7 meets industry standards.
7.What is the process for return or replacement of SDM1U100S1F-7?
All SDM1U100S1F-7 units undergo pre-shipment inspection (PSI). If there is an issue with SDM1U100S1F-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 SDM1U100S1F-7 part is unused and in its original packaging.
Return procedure for SDM1U100S1F-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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