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Diodes Incorporated SD103AWS-7-F
- Part No.:
- SD103AWS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SD103AWS-7-F.pdf
- Description:
- DIODE SCHOTTKY 40V 350MA SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:16,032
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Product details
Overview
SD103AWS-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode rated for 40 V peak repetitive reverse voltage, 350 mA forward current, and 0.37 V max forward voltage at 20 mA. It features negligible reverse-recovery time (6 ns), low reverse leakage (5.0 µA at 30 V), and ultra-small SOD323 packaging-designed specifically for automotive polarity protection and recirculating clamp circuits.
For engineers reviewing the SD103AWS-7-F datasheet, SD103AWS-7-F pinout, SD103AWS-7-F application, or SD103AWS-7-F equivalent, key selection criteria include its AEC-Q qualified reliability, 625 °C/W thermal resistance, 35 pF junction capacitance at 0 V, and cathode-band polarity marking in a JEDEC-compliant SOD323 footprint.
Technical Context
This Schottky diode employs guard ring construction to enhance transient immunity and suppress avalanche-induced failure in automotive load-dump scenarios. Its metal-semiconductor junction delivers inherently fast switching with no minority-carrier storage delay.
The device operates across –65 °C to +125 °C and maintains stable VF and IR performance over temperature, supported by a 200 mW power dissipation rating on standard 25 mm² alumina PCB pads with 2 oz copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum non-repetitive reverse voltage before breakdown; sets clamping headroom in 24 V automotive systems |
| IFM | 350 mA - Continuous forward current rating; supports compact DC/DC bias rails and sensor supply paths |
| VF MAX | 0.37 V @ 20 mA - Low conduction loss reduces heat generation in always-on protection circuits |
| IR MAX | 5.0 µA @ 30 V - Minimal leakage preserves battery standby life in infotainment and body control modules |
| tRR | 6 ns - Near-zero reverse recovery enables clean switching in high-frequency flyback snubbers |
| CT | 35 pF @ 0 V, 1 MHz - Low junction capacitance minimizes signal distortion in RF-coupled detection paths |
| RθJA | 625 °C/W - Thermal resistance measured on 25 mm² alumina board; informs derating above 75 °C ambient |
Pinout & Package
Package: SOD323 - ultra-compact 2-pin surface-mount plastic package (1.30 × 1.70 × 0.30 mm), matte tin-plated terminals, cathode band polarity marking, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to positive rail or switched node; must withstand 1.5 A non-repetitive surge during inductive kick events |
| Cathode (marked) | Forward current exit / reverse blocking terminal | Connected to ground or return path; cathode band ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring construction | Enhances ESD and load-dump transient robustness per ISO 7637-2 without external TVS |
| Negligible reverse-recovery time | 6 ns tRR eliminates switching spikes in 100 kHz–1 MHz DC/DC feedback loops |
| Ultra-small SOD323 footprint | 1.30 × 1.70 mm outline enables dense layout in space-constrained ADAS camera modules |
| AEC-Q200 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and vibration |
| Halogen & antimony free | Meets <900 ppm Br/Cl and <1000 ppm Sb; compliant with automotive OEM green material specifications |
Applications
| Automotive Polarity Protection | Inductive Load Recirculation |
|---|---|
Use Scenario: Reverse-battery connection safeguard in 12 V/24 V vehicle ECUs and telematics units. IC Role / Device Role / Timing Role: Series-blocking diode placed between battery input and downstream LDO/regulator. Use Value: Prevents catastrophic damage from –14 V reverse transients while adding only 0.37 V drop at nominal current. | Use Scenario: Freewheeling path for solenoid, relay, or fuel injector coils during de-energization. IC Role / Device Role / Timing Role: Clamp diode across inductive load to absorb stored energy and limit voltage overshoot. Use Value: 6 ns tRR and 40 V VRRM suppress >60 V spikes without oscillation in 12 V systems. |
| Low-Power Sensor Bias Rail | USB Port Overvoltage Clamping |
Use Scenario: Isolation of analog sensor supply (e.g., pressure, temp) from shared MCU rail. IC Role / Device Role / Timing Role: Back-to-back or single-diode isolation to prevent cross-talk and ground bounce coupling. Use Value: 5.0 µA IR at 30 V ensures sub-µW leakage, preserving accuracy in µA-level sensor bias networks. | Use Scenario: Input-stage protection for USB 2.0 data lines and VBUS against hot-plug transients. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp to divert ESD pulses while maintaining signal integrity. Use Value: 35 pF CT at 0 V avoids signal degradation up to 480 Mbps; 0.37 V VF enables low-threshold clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB130-TB-E3/52 | Higher IFM (1 A), larger DO-214AA package, VF = 0.5 V @ 300 mA | Not suitable for SOD323 footprint-limited designs; better for higher-current recirculation | Select when surge current >1 A is required and board space permits larger package |
| NSR0330P2T5G | SOD-523 package (smaller), VF = 0.36 V @ 100 mA, IR = 10 µA @ 25 V | Lower leakage not critical; smaller size increases placement difficulty and thermal limits | Choose only if SOD-523 is already standardized and 350 mA continuous rating is sufficient |
Compared with SB130-TB-E3/52 and NSR0330P2T5G, SD103AWS-7-F uniquely balances AEC-Q200 compliance, 40 V VRRM headroom, and SOD323 manufacturability-making it optimal for automotive front-end protection where footprint, reliability, and transient response are jointly constrained.
Availability
SD103AWS-7-F is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and portable medical devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for SD103AWS-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-reliability components for automotive, industrial, and computing markets.
The SD103xWS series belongs to Diodes' automotive-qualified Schottky diode product line, engineered for robust polarity protection and inductive clamping in harsh-environment electronic control units.
FAQ
What is the maximum operating temperature for SD103AWS-7-F?
The SD103AWS-7-F is rated for junction and storage temperatures from –65 °C to +125 °C. Its 625 °C/W thermal resistance requires derating above 75 °C ambient on standard 25 mm² alumina PCBs to maintain safe junction temperature under 350 mA load.
Is SD103AWS-7-F pin-compatible with SD103BWS-7-F or SD103CWS-7-F?
Yes-all three variants share identical SOD323 package, pinout, and mechanical dimensions. They differ only in electrical ratings: SD103AWS-7-F has 40 V VRRM, SD103BWS-7-F is 30 V, and SD103CWS-7-F is 20 V; all have same VF, IR, and tRR characteristics within their respective test conditions.
Does SD103AWS-7-F require special reflow profile considerations?
No-its moisture sensitivity level is 1 per J-STD-020, meaning it can be exposed indefinitely to ambient conditions and processed using standard Pb-free reflow profiles (peak 260 °C). The matte tin finish ensures reliable solderability per MIL-STD-202, Method 208.
How does the guard ring construction improve reliability in automotive use?
The integrated guard ring mitigates edge breakdown during load-dump transients (ISO 7637-2 Pulse 5a), preventing localized avalanche and thermal runaway. This allows the diode to clamp 12 V system surges up to 40 V without external TVS devices, reducing BOM count and PCB area.
SD103AWS-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):
- 40 V
- Current - Average Rectified (Io):
- 350mA
- Voltage - Forward (Vf) (Max) @ If:
- 600 mV @ 200 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 10 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 30 V
- Capacitance @ Vr, F:
- 28pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- -65°C ~ 125°C
SD103AWS-7-F FAQ
1.How can I place an order for SD103AWS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SD103AWS-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 SD103AWS-7-F reliable?
The price and inventory of SD103AWS-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 SD103AWS-7-F is usually 5 days.
3.What payment methods are accepted for SD103AWS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SD103AWS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SD103AWS-7-F?
SD103AWS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SD103AWS-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 SD103AWS-7-F?
For technical support, including SD103AWS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SD103AWS-7-F requirements.
6.How does Aetrix verify that SD103AWS-7-F is sourced from the original manufacturer or authorized distributors?
All SD103AWS-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 SD103AWS-7-F meets industry standards.
7.What is the process for return or replacement of SD103AWS-7-F?
All SD103AWS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with SD103AWS-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 SD103AWS-7-F part is unused and in its original packaging.
Return procedure for SD103AWS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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