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Diodes Incorporated SDM100K30L-7
- Part No.:
- SDM100K30L-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SDM100K30L-7.pdf
- Description:
- DIODE SCHOTTKY 30V 1A SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:4,070
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Product details
Overview
SDM100K30L-7 from Diodes Incorporated is a surface-mount Schottky barrier rectifier rated for 30 V peak repetitive reverse voltage, 1 A average forward current, and 360–485 mV forward voltage drop at 100 mA–1 A. It features guard ring construction for transient protection and is packaged in SOD323 for space-constrained DC/DC converter outputs and USB power rails.
For engineers reviewing the SDM100K30L-7 datasheet, SDM100K30L-7 pinout, SDM100K30L-7 application, or SDM100K30L-7 equivalent, key selection criteria include low VF performance at 1 A, 9 A non-repetitive surge capability, 22 pF junction capacitance at 10 V, JEDEC-qualified reliability, and RoHS-compliant green packaging.
Technical Context
This Schottky diode operates as a unidirectional power rectifier with metal–semiconductor junction architecture enabling low conduction loss. Its guard ring structure enhances ruggedness against voltage transients, and its 200 mW power dissipation rating assumes FR-4 board mounting with recommended pad layout.
Thermal resistance is 426 °C/W junction-to-ambient under standard conditions, and it maintains stable operation across –65 °C to +125 °C. Reverse leakage remains ≤100 µA at 20 V, supporting efficient hold-up and reverse-polarity protection in low-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum reverse voltage before breakdown; sets safe operating limit in 24 V rail clamping and 5 V buck output freewheeling |
| IO | 1 A - Continuous DC current handling; supports USB-C PD 3.0 sink paths and PMIC auxiliary rails |
| VF @ 1 A | 485 mV - Low conduction loss reduces thermal load in compact 1 A DC/DC converters |
| IFSM | 9 A - Withstands 8.3 ms half-sine surge; protects against inrush in hot-swap circuits |
| CT @ 10 V | 22 pF - Minimizes high-frequency switching noise coupling in 1–3 MHz SMPS designs |
| IR @ 20 V | 100 µA - Low leakage preserves battery standby time in always-on IoT sensor nodes |
| RθJA | 426 °C/W - Requires minimal copper area for thermal management on 1-layer PCBs |
Pinout & Package
Package: SOD323 - ultra-compact 2-pin surface-mount plastic package (1.30 mm × 1.70 mm × 0.30 mm height), matte tin-plated terminals, cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to input/source side (e.g., switch node of buck converter) |
| Cathode | Current exit point during forward conduction; marked with band | Connected to output/load side (e.g., output capacitor rail); defines polarity in reverse-battery protection |
Key Features
| Feature | Design Value |
|---|---|
| Very low forward voltage drop | 360–485 mV range enables >95% efficiency in 3.3 V/5 V buck converters at full load |
| Guard ring construction | Improves ESD robustness and transient immunity without external TVS in USB port protection |
| High conductance | Low dynamic resistance supports fast turn-on and reduced switching losses in synchronous rectifier emulation |
| Lead-free & RoHS 3 compliant | Fully compliant with EU Directive 2015/863/EU; <900 ppm Br+Cl, <1000 ppm Sb for automotive-grade supply chain traceability |
Applications
| USB Power Delivery Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Reverse-polarity protection on USB-C receptacle VBUS line prior to Type-C controller. IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage from miswired cables. Use Value: 485 mV VF minimizes voltage drop across VBUS, preserving PD negotiation margin; 9 A IFSM handles plug-in surge. | Use Scenario: Output rectification in 12 V DC/DC converter supplying microcontroller and CAN transceiver. IC Role / Device Role / Timing Role: Freewheeling path for buck inductor current during low-side switch off-time. Use Value: 22 pF CT limits high-frequency ringing; –65 °C to +125 °C rating ensures operation in engine bay environments. |
| IoT Sensor Node Power Path | Industrial PLC Digital Input Protection |
Use Scenario: OR-ing diode between Li-ion battery and USB charging path in wireless sensor. IC Role / Device Role / Timing Role: Prevents backfeed from charger into battery while enabling seamless source selection. Use Value: 100 µA IR at 20 V preserves multi-year battery shelf life; SOD323 footprint saves board space in coin-cell-sized modules. | Use Scenario: Reverse-voltage clamp on 24 V digital input channel exposed to field wiring errors. IC Role / Device Role / Timing Role: Transient-suppressing rectifier shunting reverse energy to common rail. Use Value: Guard ring construction withstands 1 kV EFT bursts per IEC 61000-4-4; 30 V VRRM matches industrial 24 V nominal systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB520S30T2R | Same 30 V VRRM, 1 A IO, but VF = 450 mV @ 1 A; SOD-523 package (smaller, 1.0 × 0.6 mm) | Higher current density; less thermal mass limits surge handling to 5 A IFSM | Select when board area is critical and surge events are infrequent |
| NSR1030HT1G | 30 V VRRM, 1 A IO, VF = 490 mV @ 1 A; SOD-123FL package (larger, 2.9 × 1.3 mm) | Higher PD (500 mW) and lower RθJA (200 °C/W); better thermal performance under sustained load | Select for continuous 1 A operation in ambient >85 °C environments |
Compared with RB520S30T2R and NSR1030HT1G, SDM100K30L-7 delivers balanced surge robustness (9 A IFSM), low VF (485 mV), and JEDEC-qualified reliability in the widely adopted SOD323 footprint-making it optimal for cost-sensitive, space-constrained 1 A power rails where transient immunity matters.
Availability
SDM100K30L-7 is available at Aetrix Electronics and suitable for USB-C power delivery interfaces, automotive body control modules, IoT sensor node power paths, and industrial PLC digital input protection requiring stable component supply and consistent SOD323 sourcing.
Supply support for SDM100K30L-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 SDM series targets high-efficiency, low-voltage power rectification in consumer, computing, and automotive applications, emphasizing low VF, compact packaging, and qualification to JEDEC reliability standards.
FAQ
What is the maximum junction temperature for SDM100K30L-7?
The SDM100K30L-7 has an operating junction temperature range of –65 °C to +125 °C. This rating is validated per JEDEC standards and applies under specified thermal conditions, including use of the recommended SOD323 pad layout on FR-4 PCB. Exceeding +125 °C risks permanent degradation of the Schottky junction.
Does SDM100K30L-7 meet AEC-Q200 requirements?
No - SDM100K30L-7 is qualified to JEDEC reliability standards but is not AEC-Q200 certified. For automotive applications requiring AEC-Q200 qualification, Diodes offers the automotive-grade SDM100K30LQ-7 (Q-suffix), which undergoes additional stress testing and is manufactured in IATF 16949-certified facilities.
Can SDM100K30L-7 be used in place of a 1N5819?
Yes, as a direct SOD323-form-factor upgrade: SDM100K30L-7 matches the 1N5819's 30 V VRRM and 1 A IO rating but improves VF (485 mV vs. ~550 mV), reduces CT (22 pF vs. ~50 pF), and uses lead-free green packaging. However, its smaller SOD323 package requires re-layout versus through-hole or DO-41 footprints.
What is the cathode marking convention for SDM100K30L-7?
The cathode is identified by a visible band on the top surface of the SOD323 package, aligned with the cathode terminal. Per Diodes' marking specification, this band corresponds to Pin 2 in the standard SOD323 pinout - confirmed in DS30579 Rev. 9-2 Figure "Top View" and mechanical drawings.
SDM100K30L-7 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):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 485 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 20 V
- Capacitance @ Vr, F:
- 22pF @ 10V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- -65°C ~ 125°C
SDM100K30L-7 FAQ
1.How can I place an order for SDM100K30L-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDM100K30L-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 SDM100K30L-7 reliable?
The price and inventory of SDM100K30L-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDM100K30L-7 is usually 5 days.
3.What payment methods are accepted for SDM100K30L-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDM100K30L-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDM100K30L-7?
SDM100K30L-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDM100K30L-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 SDM100K30L-7?
For technical support, including SDM100K30L-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDM100K30L-7 requirements.
6.How does Aetrix verify that SDM100K30L-7 is sourced from the original manufacturer or authorized distributors?
All SDM100K30L-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 SDM100K30L-7 meets industry standards.
7.What is the process for return or replacement of SDM100K30L-7?
All SDM100K30L-7 units undergo pre-shipment inspection (PSI). If there is an issue with SDM100K30L-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 SDM100K30L-7 part is unused and in its original packaging.
Return procedure for SDM100K30L-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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