My Inquiry
My Account
Diodes Incorporated SDM1100LP-7
- Part No.:
- SDM1100LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 2-UDFN
- Datasheet:
-
SDM1100LP-7.pdf
- Description:
- DIODE SCHOTT 100V 1A U-DFN2020-2
- Quantity:
- Payment:
- Shipping:
Inventory:9,679
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SDM1100LP-7 from Diodes Incorporated is a 1A, 100V Schottky barrier rectifier in U-DFN2020-2 (Type B) package, featuring VF ≤ 0.77 V at 1A/25°C, IR ≤ 0.35 µA at 100V/25°C, and RθJA = 65 °C/W. It serves as a low-loss freewheel or blocking diode in DC-DC converters, USB power paths, and portable battery-charging circuits.
For engineers reviewing the SDM1100LP-7 datasheet, SDM1100LP-7 pinout, SDM1100LP-7 application, or SDM1100LP-7 equivalent, key selection criteria include ultra-low forward voltage for efficiency-critical 1A rectification, thermal robustness up to +175°C junction temperature, and compact 2.0 × 2.0 mm DFN footprint for space-constrained PCB layouts.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced failure and enable stable operation under repetitive surge conditions (IFSM = 40 A). Its low RθJC (16 °C/W) and optimized copper leadframe support high-power-density designs where thermal management is constrained.
The device delivers graded performance across temperature: VF rises only to 0.62 V at 1A/125°C and 0.86 V at 2A/25°C, while IR remains ≤ 0.35 mA at 100V/125°C - confirming suitability for high-temperature industrial and automotive-adjacent applications without thermal runaway risk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Withstands 100 V reverse bias without breakdown; suitable for 48 V system inputs with margin. |
| IO | 1 A continuous - Rated for sustained 1 A DC forward current at TA ≤ 75°C with standard PCB copper pad. |
| VF (max) | 0.77 V @ 1A, 25°C - Enables <0.77 W conduction loss at full load, reducing heat sink requirements. |
| IR (max) | 0.35 µA @ 100V, 25°C - Minimizes standby leakage in battery-backed or energy-harvesting systems. |
| RθJA | 65 °C/W - Predicts ~65 K rise per watt dissipated on 1-inch² 2-oz copper; enables thermal modeling without simulation. |
| TJ range | −55°C to +175°C - Supports operation in under-hood automotive, industrial motor drives, and outdoor power equipment. |
| CT | 40 pF @ 5V, 1 MHz - Low junction capacitance preserves switching speed in high-frequency (>1 MHz) buck converter outputs. |
Pinout & Package
Package: U-DFN2020-2 (Type B), 2.0 mm × 2.0 mm × 0.5 mm, dual-terminal surface-mount package with NiPdAu-plated copper leadframe and cathode-marked top-side bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/source side; must be routed with low-inductance path for high di/dt freewheeling. |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by bar on top surface; ties to output/load node; requires thermal pad connection to PCB ground plane for heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown during voltage transients, enabling reliable operation in noisy DC-DC feedback loops. |
| Ultra-low VF (0.58 V typ @ 1A/125°C) | Reduces conduction loss by >30% vs. standard silicon diodes, directly improving efficiency in 5–12 V output converters. |
| Low IR (0.015 mA max @ 50V/85°C) | Preserves battery runtime in always-on IoT nodes by limiting quiescent current drain under partial reverse bias. |
| U-DFN2020-2 footprint | Occupies 4 mm² area - 75% smaller than SMA packages - enabling dense layout in USB-C PD adapters and wearables. |
| JEDEC-qualified reliability | Meets AEC-Q200 stress test requirements for high-reliability industrial use, including 1000-cycle temperature cycling. |
Applications
| USB Power Delivery Adapter | Industrial DC-DC Converter |
|---|---|
Use Scenario: Secondary-side rectification in 20–100 W GaN-based USB-C PD adapters. IC Role / Device Role / Timing Role: Synchronous rectifier replacement; conducts during low-side switch off-time to recover energy. Use Value: 0.77 V VF reduces secondary-side loss by ~0.77 W vs. Si diode, lowering adapter surface temperature by ≥8°C at full load. |
Use Scenario: Output rectification in isolated 24 V input, 5 V/3 A industrial buck-boost converters. IC Role / Device Role / Timing Role: Freewheel diode clamping inductor flyback energy during high-side switch off-phase. Use Value: 175°C TJ rating allows uninterrupted operation in enclosed enclosures with ambient up to 85°C without derating. |
| Portable Battery Charger | Automotive Body Control Module |
Use Scenario: Reverse-polarity protection and charging-path isolation in single-cell Li-ion power banks. IC Role / Device Role / Timing Role: Blocking diode preventing battery discharge into inactive USB ports or auxiliary rails. Use Value: 0.35 µA IR at 100V ensures <1 µA total leakage across 10 parallel paths, extending shelf life beyond 12 months. |
Use Scenario: Load-dump protection and ECU power-rail decoupling in 12 V automotive BCMs. IC Role / Device Role / Timing Role: Clamping diode absorbing inductive kickback from solenoid drivers and relay coils. Use Value: 40 A IFSM rating handles ISO 7637-2 Pulse 5a surges without degradation; qualified per AEC-Q200. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS12-E3/5AT (Vishay) | VF = 0.85 V @ 1A/25°C; larger SMA package (4.5 × 2.7 mm); RθJA = 120 °C/W. | Requires more board area and heatsinking; less suitable for ultra-thin adapters or wearables. | Select when legacy through-hole/SMA compatibility is required and thermal budget permits higher VF loss. |
| RB050M-30TR (ROHM) | VF = 0.52 V @ 1A/25°C; same U-DFN2020-2 package; but VRRM = 30 V only. | Limited to ≤24 V systems; unsuitable for 48 V industrial or PoE++ applications. | Select only for low-voltage (<30 V) high-efficiency designs where 100 V rating is unnecessary. |
Compared with SS12-E3/5AT and RB050M-30TR, SDM1100LP-7 uniquely balances 100 V rating, 0.77 V VF, and 2.0 × 2.0 mm footprint - making it optimal for next-gen compact, wide-input-range power supplies where size, voltage margin, and thermal performance are jointly constrained.
Availability
SDM1100LP-7 is available at Aetrix Electronics and suitable for USB-C PD adapters, industrial DC-DC converters, and portable battery chargers requiring stable component supply, JEDEC-qualified reliability, and RoHS-compliant green packaging.
Supply support for SDM1100LP-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 SDM1100LP-7 belongs to Diodes' high-efficiency Schottky rectifier product line, engineered specifically for space- and thermally constrained power conversion in consumer, industrial, and automotive-adjacent applications.
FAQ
What is the maximum allowable PCB copper area for thermal relief of SDM1100LP-7?
The datasheet specifies thermal resistance values based on mounting the device on a 1-inch² (645 mm²) 2-oz copper pad. Reducing pad area increases RθJA proportionally; for 250 mm² (0.4 inch²) pads, RθJA rises to ~95 °C/W. Thermal simulation or empirical testing is recommended for non-standard layouts.
Can SDM1100LP-7 replace a standard PN-junction diode in an existing 12 V buck converter?
Yes - its 100 V VRRM exceeds typical 12 V system transients, and 0.77 V VF provides immediate efficiency gain over 1N4007 (VF ≈ 1.1 V). However, verify layout clearance: the U-DFN2020-2 footprint differs from DO-214AC, requiring PCB redesign and solder mask optimization for thermal pad reflow.
Is SDM1100LP-7 qualified for automotive applications?
No - SDM1100LP-7 is not AEC-Q101 qualified. Diodes offers automotive-grade equivalents (e.g., SDM1100Q-7 with Q-suffix) that undergo PPAP, extended temperature validation, and IATF 16949 manufacturing controls. Use SDM1100LP-7 only in non-safety-critical commercial/industrial systems.
How does the guard ring structure improve reliability in high-noise environments?
The guard ring mitigates electric field crowding at the die periphery, raising the effective breakdown voltage during fast-rising transients (e.g., ISO 7637-2 pulses). This prevents localized avalanche and metallization damage, extending lifetime in motor drive or relay-switching applications with repetitive inductive spikes.
SDM1100LP-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 2-UDFN
- 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:
- 350 µA @ 100 V
- Capacitance @ Vr, F:
- 40pF @ 5V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2020-2
- Operating Temperature - Junction:
- -55°C ~ 175°C
SDM1100LP-7 FAQ
1.How can I place an order for SDM1100LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDM1100LP-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 SDM1100LP-7 reliable?
The price and inventory of SDM1100LP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDM1100LP-7 is usually 5 days.
3.What payment methods are accepted for SDM1100LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDM1100LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDM1100LP-7?
SDM1100LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDM1100LP-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 SDM1100LP-7?
For technical support, including SDM1100LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDM1100LP-7 requirements.
6.How does Aetrix verify that SDM1100LP-7 is sourced from the original manufacturer or authorized distributors?
All SDM1100LP-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 SDM1100LP-7 meets industry standards.
7.What is the process for return or replacement of SDM1100LP-7?
All SDM1100LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with SDM1100LP-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 SDM1100LP-7 part is unused and in its original packaging.
Return procedure for SDM1100LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDM1100LP-7 Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
