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Diodes Incorporated SDMG0340LC-7-F
- Part No.:
- SDMG0340LC-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
SDMG0340LC-7-F.pdf
- Description:
- DIODE ARR SCHOTT 40V 30MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:10,136
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Product details
Overview
SDMG0340LC-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT-323 package, rated for 40 V peak reverse voltage, 30 mA continuous forward current, and 295–370 mV forward voltage at 1.0 mA. It features ultra-low capacitance (2.0 pF @ 1 V), fast switching, and PN junction guard ring for ESD/transient protection-used in portable power management and signal clamping circuits.
For engineers reviewing the SDMG0340LC-7-F datasheet, SDMG0340LC-7-F pinout, SDMG0340LC-7-F application, or SDMG0340LC-7-F equivalent, key selection criteria include low VF for battery-sensitive designs, 2.0 pF junction capacitance for RF signal path integrity, thermal resistance of 625 °C/W on FR-4, and RoHS-compliant matte tin plating over Alloy 42 leadframe.
Technical Context
This Schottky diode uses a planar epitaxial construction with a PN junction guard ring to suppress edge breakdown and improve transient immunity. Its low forward voltage and minimal stored charge enable efficient rectification and clamping in low-power DC-DC feedback paths and high-frequency signal routing.
The device operates across –40 °C to +125 °C and derates linearly above 25 °C ambient, maintaining 200 mW power dissipation at TA ≤ 25 °C. Its 2.0 pF capacitance at 1 V reverse bias supports use in 1 MHz–100 MHz signal conditioning without significant phase shift or loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum non-repetitive reverse voltage before breakdown; sets safe operating limit in 3.3 V/5 V rail clamping |
| VF @ 1.0 mA | 295–370 mV - Low conduction loss preserves battery life in always-on sensor nodes |
| IR @ 10 V | 150–1000 nA - Minimal leakage maintains accuracy in high-impedance analog monitoring circuits |
| CT @ 1 V, 1 MHz | 2.0 pF - Enables clean signal coupling in RF front-end bias networks and antenna switch control |
| RθJA | 625 °C/W - Requires minimal PCB copper area for thermal relief in space-constrained wearables |
| IFM | 30 mA - Supports continuous operation in LED indicator drivers and microcontroller I/O protection |
Pinout & Package
Package: SOT-323 - ultra-small plastic surface-mount case (2.10 × 1.30 × 0.95 mm), UL 94V-0 rated, moisture sensitivity level 1, lead-free matte tin finish over Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node in clamping or rectification; requires trace width ≥ 0.2 mm for 30 mA |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Typically tied to ground or reference rail; guards against reverse polarity in USB/IO protection |
| Collector / Case (Pin 3) | Thermal and mechanical anchor | Non-electrical; soldered to PCB thermal pad or ground pour to assist heat dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring protected junction | Suppresses edge breakdown during ESD events (IEC 61000-4-2 Level 4 compatible when properly laid out) |
| Ultra-low forward voltage | 295 mV typical at 1 mA enables >95% efficiency in 1.8 V supply rail clamp applications |
| Low junction capacitance | 2.0 pF allows integration into 2.4 GHz ISM band bias tees without degrading VSWR |
| Green molding compound | Halogen-free, Sb₂O₃-free encapsulation compliant with IPC-1752A Class A reporting requirements |
Applications
| USB Data Line Protection | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Protecting D+ and D− lines in USB 2.0 peripherals from ESD and overvoltage transients. IC Role / Device Role / Timing Role: Bidirectional clamping diode placed between data line and VBUS or ground. Use Value: 295 mV VF ensures negligible signal distortion; 2.0 pF CT avoids bandwidth degradation up to 480 Mbps. | Use Scenario: Providing stable bias current to MEMS accelerometers and temperature sensors in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Precision current source element in constant-current bias network. Use Value: 150 nA max IR prevents offset drift in picoamp-level sensor interfaces. |
| RF Switch Control Line Clamp | Microcontroller I/O Protection |
Use Scenario: Clamping gate-control voltages in GaAs pHEMT RF switches used in cellular front-end modules. IC Role / Device Role / Timing Role: Fast-turn-off shunt clamp limiting control line swing to ±0.3 V beyond rail. Use Value: 200 mA IFSM handles pulse energy from RF burst switching; 2.0 pF avoids detuning matching networks. | Use Scenario: Safeguarding GPIO pins of ARM Cortex-M0+ MCUs against accidental 5 V exposure or inductive kickback. IC Role / Device Role / Timing Role: Input-level translator and overvoltage limiter on digital input pins. Use Value: Guard ring structure withstands 8 kV contact discharge per IEC 61000-4-2; 40 V VRRM covers 3.3 V/5 V mixed-rail systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAT54C-7-F | Same SOT-323 package; 30 V VRRM, 310 mV VF @ 10 mA, 10 pF CT @ 1 V | Higher capacitance limits use above 100 MHz; lower VRRM restricts 5 V rail clamping | Select when cost sensitivity outweighs RF performance; verify layout clearance for 10 pF loading |
| NSR0330HT1G | SOD-323 package (smaller footprint); 30 V VRRM, 240 mV VF @ 1 mA, 3.5 pF CT @ 0 V | SOD-323 lacks standardized pad layout compatibility; higher CT affects HF signal integrity | Prefer for ultra-dense layouts where 0.65 mm pitch is critical; validate thermal relief with reduced pad area |
Compared with BAT54C-7-F and NSR0330HT1G, SDMG0340LC-7-F delivers superior RF suitability due to its 2.0 pF capacitance and 40 V rating, while maintaining identical SOT-323 mounting-making it optimal for high-frequency clamping where signal fidelity and rail margin are both critical.
Availability
SDMG0340LC-7-F is available at Aetrix Electronics and suitable for portable medical monitors, Bluetooth LE sensor hubs, and automotive body control modules requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for SDMG0340LC-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the US.
The SDMG series belongs to Diodes' precision low-leakage Schottky portfolio, engineered specifically for space-constrained, low-power signal integrity and protection applications in portable and wireless electronics.
FAQ
What is the maximum junction temperature for SDMG0340LC-7-F?
The absolute maximum junction temperature is +125 °C, aligned with its storage temperature range. At 25 °C ambient, full 200 mW power dissipation is allowed; above that, derating follows the 625 °C/W thermal resistance curve-e.g., at 75 °C ambient, max PD drops to 100 mW.
Is SDMG0340LC-7-F suitable for bidirectional ESD protection?
No-it is a unidirectional Schottky diode with anode and cathode terminals. For bidirectional ESD protection, a dual-diode array like DMN3016LSD-13 or dedicated TVS such as D3V3Z1B-7 is required. SDMG0340LC-7-F functions only as a forward-biased clamp or reverse-blocking rectifier.
Does the "LC" suffix indicate a different electrical specification than "L" or "LA"?
No-the SDMG0340L, LA, LC, and LS variants share identical electrical specifications and package dimensions. The suffix denotes internal wafer lot or process revision codes (KSP marking for LC) and does not affect VF, VRRM, or CT values per DS30248 Rev. 12–2.
Can SDMG0340LC-7-F be used in place of a 1N5711 in a high-frequency detector circuit?
Yes-with caveats: SDMG0340LC-7-F offers lower VF (295 mV vs. ~430 mV) and lower CT (2.0 pF vs. ~4 pF), improving sensitivity and bandwidth. However, its 30 mA IFM rating is lower than 1N5711's 150 mA, so avoid in circuits with >30 mA average detector current or high-surge RF envelopes.
SDMG0340LC-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 30mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 370 mV @ 1 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 10 V
- Operating Temperature - Junction:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
SDMG0340LC-7-F FAQ
1.How can I place an order for SDMG0340LC-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SDMG0340LC-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 SDMG0340LC-7-F reliable?
The price and inventory of SDMG0340LC-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 SDMG0340LC-7-F is usually 5 days.
3.What payment methods are accepted for SDMG0340LC-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDMG0340LC-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDMG0340LC-7-F?
SDMG0340LC-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDMG0340LC-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 SDMG0340LC-7-F?
For technical support, including SDMG0340LC-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDMG0340LC-7-F requirements.
6.How does Aetrix verify that SDMG0340LC-7-F is sourced from the original manufacturer or authorized distributors?
All SDMG0340LC-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 SDMG0340LC-7-F meets industry standards.
7.What is the process for return or replacement of SDMG0340LC-7-F?
All SDMG0340LC-7-F units undergo pre-shipment inspection (PSI). If there is an issue with SDMG0340LC-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 SDMG0340LC-7-F part is unused and in its original packaging.
Return procedure for SDMG0340LC-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDMG0340LC-7-F Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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