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Diodes Incorporated DFLS1100Q-7
- Part No.:
- DFLS1100Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLS1100Q-7.pdf
- Description:
- DIODE SCHOTTKY 100V 1A PWRDI123
- Quantity:
- Payment:
- Shipping:
Inventory:29,547
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Product details
Overview
DFLS1100Q-7 from Diodes Incorporated is an AEC-Q101 qualified 100 V, 1.0 A high-voltage Schottky barrier rectifier in POWERDI®123 package, featuring 0.77 V max forward voltage at 1.0 A and 0.35 µA max reverse leakage at 100 V/25°C. It serves as polarity protection, recirculating, or switching diode in automotive power rails and DC-DC converters.
For engineers reviewing the DFLS1100Q-7 datasheet, DFLS1100Q-7 pinout, DFLS1100Q-7 application, or DFLS1100Q-7 equivalent, key selection criteria include its 100 V reverse rating, low VF for thermal efficiency, AEC-Q101 qualification, 50 A surge capability, and green RoHS-compliant POWERDI®123 footprint.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced avalanche failure and patented interlocking clip design to sustain 50 A non-repetitive surge current (8.3 ms half-sine). Its low 0.77 V VF at 1.0 A reduces conduction loss in 12 V/24 V automotive systems.
Thermal resistance junction-to-soldering is 7 °C/W, enabling operation up to +175°C junction temperature. Reverse leakage remains ≤0.35 µA at 100 V/25°C and ≤0.35 mA at 100 V/125°C - critical for battery-sensitive polarity protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Withstands peak reverse transients in 24 V automotive systems without breakdown. |
| IF(AV) | 1.0 A - Sustains continuous forward current in compact power rail protection paths. |
| VF max | 0.77 V @ 1.0 A, 25°C - Minimizes power loss (≤0.77 W) and self-heating in space-constrained layouts. |
| IR max | 0.35 µA @ 100 V, 25°C - Ensures negligible standby current drain in always-on vehicle modules. |
| IFSM | 50 A @ 8.3 ms - Handles load dump and inductive kickback surges per ISO 7637-2. |
| RθJS | 7 °C/W - Enables efficient heat transfer to PCB copper pad, supporting high ambient operation. |
| TJ range | –55°C to +175°C - Meets under-hood temperature requirements for engine control and lighting modules. |
Pinout & Package
Package: POWERDI®123 - surface-mount, single-cathode-band marking, 3-pin outline (anode/cathode/thermal tab), 0.01 g weight, UL 94V-0 molding compound, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current terminal | Connected to source side (e.g., battery+) in polarity protection; carries full load current. |
| Cathode (Lead 2, marked with band) | Output current terminal | Connected to load side; low-VF path enables reverse-current blocking during fault conditions. |
| Thermal Tab (Exposed cathode pad) | Thermal and electrical cathode extension | Soldered directly to PCB copper pour for enhanced heat dissipation and lower RθJA. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown during fast dv/dt transients (10,000 V/µs rated), improving system-level ESD/EMI robustness. |
| Interlocking clip design | Enables 50 A IFSM surge handling without bond wire lift-off - critical for alternator load dump survival. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing - supports PPAP documentation. |
| Green "Halogen- & Antimony-Free" | Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies OEM environmental compliance mandates (e.g., BMW GS95024). |
| POWERDI®123 footprint | 0.98 mm height, 3.70 mm × 1.78 mm body - enables high-density layout while maintaining >0.4 mm creepage for 100 V isolation. |
Applications
| Automotive Polarity Protection | DC-DC Converter Output Rectification |
|---|---|
Use Scenario: Protects infotainment head units and ADAS ECUs from reverse-battery connection during service. IC Role / Device Role / Timing Role: Unidirectional current gate placed between battery input and main power rail. Use Value: Blocks reverse current with <0.35 µA leakage at 100 V, preventing damage while adding <0.77 V drop only during normal operation. |
Use Scenario: Rectifies synchronous buck converter output in 12 V → 5 V/3.3 V supplies for microcontrollers. IC Role / Device Role / Timing Role: Low-loss freewheeling path during high-side FET off-time. Use Value: 0.77 V VF minimizes conduction loss vs. silicon diodes, improving efficiency by ~3% at 1 A load. |
| Engine Control Module Recirculation | LED Headlamp Switching Protection |
Use Scenario: Suppresses inductive kickback from fuel injector solenoids and ignition coils. IC Role / Device Role / Timing Role: Snubber diode across inductive load, clamping flyback voltage to safe levels. Use Value: 50 A IFSM and 10,000 V/µs dv/dt rating ensure reliable energy absorption without avalanche degradation. |
Use Scenario: Prevents reverse current flow when LED matrix drivers are powered down asymmetrically. IC Role / Device Role / Timing Role: Back-to-back blocking element in multi-string LED power distribution. Use Value: 100 V VRRM withstands transient spikes from PWM dimming circuits; green compound meets OEM halogen-free specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB1100-TB | Same 100 V/1 A rating but TO-277 package; higher RθJA (150 °C/W), no AEC-Q101 qualification. | Not suitable for automotive under-hood use; limited to commercial-grade industrial power supplies. | Select only if cost is primary concern and AEC-Q101/PPAP not required. |
| SS110H | 100 V/1 A, SMA package; VF = 0.85 V @ 1 A; IR = 0.5 µA @ 100 V; no guard ring or interlocking clip. | Lacks surge robustness for load dump; higher VF increases thermal stress in sealed LED housings. | Acceptable for low-cost consumer DC-DC, but avoid where ISO 7637-2 immunity is mandated. |
Compared with SB1100-TB and SS110H, DFLS1100Q-7 uniquely combines AEC-Q101 qualification, 50 A surge rating, and 0.77 V VF in a thermally optimized POWERDI®123 package - making it the only choice for production automotive polarity protection and recirculation where reliability and space constraints intersect.
Availability
DFLS1100Q-7 is available at Aetrix Electronics and suitable for automotive polarity protection, DC-DC converter output rectification, and engine control module recirculation requiring stable component supply and full AEC-Q101 traceability.
Supply support for DFLS1100Q-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 DFLS1100Q-7 belongs to Diodes' automotive-qualified Schottky rectifier product line, engineered specifically for high-reliability 12 V/24 V vehicle subsystems demanding low VF, high surge tolerance, and zero-halogen compliance.
FAQ
What is the maximum junction temperature for DFLS1100Q-7?
The DFLS1100Q-7 has a specified operating junction temperature range of –55°C to +175°C. This rating is validated per AEC-Q101 stress tests and supported by its 7 °C/W RθJS thermal resistance, allowing reliable operation in under-hood environments such as engine control units and headlamp modules.
Is DFLS1100Q-7 pin-compatible with DFLS1100-7?
Yes - DFLS1100Q-7 and DFLS1100-7 share identical POWERDI®123 package dimensions, pinout, and solder pad layout. The 'Q' suffix denotes automotive qualification (AEC-Q101, PPAP-capable, IATF 16949 manufacturing), while the base part is commercial grade; both are mechanically interchangeable.
Does DFLS1100Q-7 require derating for capacitive loads?
Yes - per the datasheet, average forward current must be derated by 20% when used with capacitive loads. At 25°C ambient, IF(AV) drops from 1.0 A to 0.8 A to prevent excessive peak charging currents that could exceed the 50 A IFSM limit or cause localized heating.
How does the guard ring construction improve reliability?
The guard ring die structure surrounds the active Schottky junction to distribute electric field gradients during high dv/dt events, preventing premature edge breakdown. This extends device lifetime under repetitive transients like ISO 7637-2 Pulse 5a (load dump) and improves ESD robustness in automated assembly environments.
DFLS1100Q-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- POWERDI®123
- 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:
- 1 µA @ 100 V
- Capacitance @ Vr, F:
- 36pF @ 5V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
- Operating Temperature - Junction:
- -55°C ~ 175°C
DFLS1100Q-7 FAQ
1.How can I place an order for DFLS1100Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLS1100Q-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 DFLS1100Q-7 reliable?
The price and inventory of DFLS1100Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLS1100Q-7 is usually 5 days.
3.What payment methods are accepted for DFLS1100Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLS1100Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLS1100Q-7?
DFLS1100Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLS1100Q-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 DFLS1100Q-7?
For technical support, including DFLS1100Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLS1100Q-7 requirements.
6.How does Aetrix verify that DFLS1100Q-7 is sourced from the original manufacturer or authorized distributors?
All DFLS1100Q-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 DFLS1100Q-7 meets industry standards.
7.What is the process for return or replacement of DFLS1100Q-7?
All DFLS1100Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLS1100Q-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 DFLS1100Q-7 part is unused and in its original packaging.
Return procedure for DFLS1100Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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