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Diodes Incorporated SD107WS-7-F
- Part No.:
- SD107WS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SD107WS-7-F.pdf
- Description:
- DIODE SCHOTTKY 30V 100MA SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:31,451
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Product details
Overview
SD107WS-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOD323 package, rated for 30 V peak reverse voltage, 100 mA continuous forward current, and 250 mW power dissipation. It delivers low forward voltage drop (300–550 mV at 2–50 mA), low capacitance (7 pF at 10 V), and guard ring die construction for transient protection-ideal for low-voltage logic-level clamping and signal rectification in space-constrained portable electronics.
For engineers reviewing the SD107WS-7-F datasheet, SD107WS-7-F pinout, SD107WS-7-F application, or SD107WS-7-F equivalent, key selection criteria include its 30 V VRRM, 7 pF CT at 10 V, thermal resistance of 500 °C/W, cathode-banded polarity marking, and JEDEC-qualified reliability for high-reliability consumer and industrial designs.
Technical Context
This Schottky diode employs a guard ring die structure to enhance transient voltage immunity and reduce leakage under reverse bias. Its low forward voltage enables efficient operation in 1.8–3.3 V logic interface circuits, while its 7 pF junction capacitance supports high-speed signal routing up to ~100 MHz.
The device operates across –65 °C to +150 °C and maintains stable reverse leakage (<1.0 µA at 25 V) and forward conduction characteristics over temperature, validated per JEDEC standards for high-reliability applications without automotive qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit for 24 V rail clamping and 3.3 V logic protection. |
| IF | 100 mA - Continuous forward current rating; defines max DC load current in signal path or low-power supply rail. |
| VF @ 15 mA | 300–550 mV - Low forward drop ensures minimal voltage loss in level-shifting and ESD protection paths. |
| CT @ 10 V | 7 pF - Low junction capacitance preserves signal integrity in high-frequency data lines (e.g., I²C, USB D+/D−). |
| RθJA | 500 °C/W - Thermal resistance on FR-4 board; requires derating above 75 °C ambient for sustained 100 mA operation. |
| IR @ 25 V | ≤1.0 µA - Tight reverse leakage enables reliable hold-off in battery-backed or low-power sleep circuits. |
Pinout & Package
Package: SOD323 - ultra-compact 2-pin surface-mount plastic package (1.30 × 1.70 × 0.95 mm), matte tin-plated leads, cathode indicated by band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., signal source or ground side of clamp); must be routed with minimal trace inductance for transient response. |
| Cathode (banded) | Forward current exit / reverse blocking terminal | Connected to higher-potential node (e.g., VCC or logic rail); band orientation confirms polarity during automated optical inspection (AOI) and placement. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD robustness and reduces parameter drift under fast transients (e.g., IEC 61000-4-2 contact discharge). |
| Low forward voltage (300 mV typ @ 2 mA) | Enables use in sub-1.8 V logic interfaces without forward bias loss compromising signal margin. |
| 7 pF junction capacitance | Minimizes loading on high-speed digital signals-critical for maintaining rise/fall time integrity in 10–50 MHz clock or data lines. |
| JEDEC-qualified reliability | Validated for high-reliability operation per AEC-Q stress test references; suitable for industrial control and medical instrumentation. |
Applications
| USB Data Line Protection | I²C Bus Level Shifting |
|---|---|
Use Scenario: Bidirectional signal clamping on USB 2.0 D+ and D− lines to prevent overvoltage damage from ESD or hot-plug events. IC Role / Device Role / Timing Role: Passive clamping diode placed between data line and 3.3 V rail, conducting only during overvoltage excursions. Use Value: 7 pF capacitance avoids signal distortion; 300 mV VF ensures clamping threshold stays below 3.6 V, preserving USB eye diagram compliance. |
Use Scenario: Voltage translation between 1.8 V microcontroller GPIO and 3.3 V sensor I²C bus, using diode-based level shifter topology. IC Role / Device Role / Timing Role: Anode tied to 1.8 V side, cathode to 3.3 V side-enabling bidirectional open-drain communication with no active components. Use Value: Low VF (≤470 mV @ 50 mA) minimizes effective high-level voltage shift; 100 mA rating supports multi-sensor bus loading. |
| Low-Power Sensor Interface | Portable Device Power Rail Clamping |
Use Scenario: Reverse polarity and overvoltage protection for analog sensor outputs (e.g., thermistor, Hall effect) feeding into ADC inputs. IC Role / Device Role / Timing Role: Series-connected Schottky in signal path, blocking reverse current while passing low-level analog signals with minimal offset. Use Value: ≤1.0 µA reverse leakage prevents ADC input error at 24-bit resolution; 500 °C/W RθJA allows direct PCB mounting near thermally sensitive sensors. |
Use Scenario: Clamp diode on 3.3 V or 5 V system rail to absorb inductive kickback from switching regulators or motor drivers. IC Role / Device Role / Timing Role: Cathode tied to rail, anode grounded-shunting transient energy to GND during voltage spikes. Use Value: 750 mA non-repetitive surge rating handles typical regulator overshoot; guard ring die improves survivability against >2 kV ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB520S-30T2R | Same SOD-323 package, 30 V VRRM, but higher VF (450 mV min @ 10 mA) and 10 pF CT. | Less suitable for <1.8 V logic interfaces due to higher forward drop and capacitance. | Prefer SD107WS-7-F where sub-350 mV VF and <8 pF CT are required for signal integrity. |
| BAT54CW-7-F | Same package, dual-channel configuration (two diodes), 30 V rating, 370 mV VF @ 10 mA, 10 pF CT. | Offers dual functionality but higher capacitance limits use in >20 MHz signal paths. | Select SD107WS-7-F for single-diode, lowest-capacitance solution in tight layout constraints. |
Compared with RB520S-30T2R and BAT54CW-7-F, SD107WS-7-F provides the lowest combination of forward voltage and junction capacitance in SOD323, making it optimal for high-speed, low-voltage signal conditioning where both conduction loss and capacitive loading must be minimized.
Availability
SD107WS-7-F is available at Aetrix Electronics and suitable for USB interface protection, I²C level shifting, and low-power sensor signal conditioning requiring stable component supply and consistent parametric performance across production lots.
Supply support for SD107WS-7-F 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, high-reliability components for industrial, computing, and consumer markets.
The SD107WS belongs to Diodes' general-purpose Schottky diode product line, engineered for low-voltage signal integrity and transient resilience in compact portable and IoT edge devices.
FAQ
Is SD107WS-7-F qualified for automotive applications?
No. SD107WS-7-F is not AEC-Q200 qualified and lacks PPAP documentation or IATF 16949 manufacturing certification. For automotive use, Diodes offers the Q-suffix variant SD107WSQ-7-F, which meets AEC-Q200 Grade 1 requirements and is produced in IATF-certified facilities.
What is the maximum allowable soldering temperature for SD107WS-7-F?
The SD107WS-7-F is rated for moisture sensitivity level 1 per J-STD-020, permitting unlimited floor life and standard reflow profiles. Peak reflow temperature must not exceed 260 °C for ≤10 seconds, consistent with IPC/JEDEC J-STD-020D. Hand soldering should stay below 350 °C for <3 seconds per joint.
Does SD107WS-7-F support bidirectional signal clamping?
No. As a unidirectional Schottky diode with cathode band marking, it conducts only from anode to cathode. For bidirectional ESD protection, two SD107WS-7-F devices must be used in series opposition (anode-to-anode or cathode-to-cathode), or a dedicated TVS array like D3V3Z5U2P should be selected.
How does the guard ring die construction improve reliability?
The guard ring structure surrounds the active junction to suppress edge leakage and prevent premature avalanche breakdown under transient overvoltage. This design increases ESD withstand capability (tested to >8 kV HBM) and stabilizes reverse leakage across temperature and aging, critical for long-life portable electronics.
SD107WS-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 100mA
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 25 V
- Capacitance @ Vr, F:
- 7pF @ 10V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- -65°C ~ 150°C
SD107WS-7-F FAQ
1.How can I place an order for SD107WS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SD107WS-7-F 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 SD107WS-7-F reliable?
The price and inventory of SD107WS-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SD107WS-7-F is usually 5 days.
3.What payment methods are accepted for SD107WS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SD107WS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SD107WS-7-F?
SD107WS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SD107WS-7-F 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 SD107WS-7-F?
For technical support, including SD107WS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SD107WS-7-F requirements.
6.How does Aetrix verify that SD107WS-7-F is sourced from the original manufacturer or authorized distributors?
All SD107WS-7-F 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 SD107WS-7-F meets industry standards.
7.What is the process for return or replacement of SD107WS-7-F?
All SD107WS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with SD107WS-7-F, 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 SD107WS-7-F part is unused and in its original packaging.
Return procedure for SD107WS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SD107WS-7-F Tags
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