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Diodes Incorporated DFLS1100-7
- Part No.:
- DFLS1100-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLS1100-7.pdf
- Description:
- DIODE SCHOTTKY 100V 1A PWRDI123
- Quantity:
- Payment:
- Shipping:
Inventory:46,757
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Product details
Overview
DFLS1100-7 from Diodes Incorporated is a 1.0A, 100V high-voltage Schottky barrier rectifier in POWERDI®123 package, optimized for automotive polarity protection and recirculating diode applications. It delivers VF ≤ 0.77 V at 1.0 A (25°C), IR ≤ 0.35 µA at 100 V (25°C), and withstands IFSM = 50 A surge current. Its guard ring die construction enhances transient robustness in 12 V/24 V vehicle subsystems.
For engineers reviewing the DFLS1100-7 datasheet, DFLS1100-7 pinout, DFLS1100-7 application, or DFLS1100-7 equivalent, key selection criteria include low forward voltage for thermal efficiency in space-constrained PCB layouts, AEC-Q101 qualification status (for Q variant), and validated performance under -55°C to +175°C junction temperature range.
Technical Context
This Schottky rectifier uses a planar guard ring die structure to suppress edge breakdown and improve dV/dt immunity (10,000 V/µs). Its interlocking clip design enables high surge current handling without bond wire failure, critical for inductive load switching in engine control units and body electronics.
Thermal resistance RθJA = 125 °C/W (FR-4, 2 oz Cu) and RθJC = 21 °C/W confirm efficient heat transfer to PCB copper pads. Total capacitance CT = 36 pF at 5 V enables fast switching with minimal ringing in DC-DC flyback snubbers and reverse-polarity protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum blocking voltage before avalanche conduction; supports 24 V automotive systems with 4× safety margin. |
| IF(AV) | 1.0 A - Continuous forward current rating at TC = +160°C; defines steady-state power delivery capability. |
| VF max | 0.77 V @ 1.0 A, 25°C - Low conduction loss reduces thermal stress in compact power rails. |
| IR max | 0.35 µA @ 100 V, 25°C - Ultra-low leakage preserves battery standby life in always-on modules. |
| IFSM | 50 A @ 8.3 ms - Withstands motor stall or solenoid de-energization surges without degradation. |
| TJ range | -55°C to +175°C - Validated operation across full automotive under-hood temperature envelope. |
| RθJC | 21 °C/W - Enables direct thermal coupling to copper pour for passive cooling in cost-sensitive designs. |
Pinout & Package
Package: POWERDI®123 - Surface-mount, single-ended anode-cathode configuration with cathode band marking. Molded green compound (UL 94V-0), 0.01 g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction path | Connected to power source or inductive load return; requires adequate copper area for thermal dissipation. |
| Cathode | Output terminal for forward conduction path | Marked with band; ties to system ground or load input; serves as primary thermal interface to PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown and improves dV/dt immunity to 10,000 V/µs for reliable operation in noisy automotive environments. |
| Interlocking clip design | Enables 50 A non-repetitive surge current handling without bond wire lift-off during inductive kick events. |
| Low VF (0.77 V @ 1 A) | Reduces conduction loss by >30% vs. standard silicon rectifiers, lowering thermal footprint in sealed enclosures. |
| Green compound & RoHS3 compliance | Meets automotive environmental standards: <900 ppm Br/Cl, <1000 ppm Sb, lead-free matte tin finish. |
Applications
| Engine Control Unit (ECU) Polarity Protection | Body Control Module (BCM) Reverse-Voltage Clamp |
|---|---|
Use Scenario: Prevents damage from battery cable reversal during service or jump-starting in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed between battery input and main power rail. Use Value: 100 V VRRM withstands load dump transients; 0.35 µA IR minimizes quiescent drain on vehicle battery. |
Use Scenario: Clamps reverse voltage spikes induced by relay coil de-energization in door lock or lighting drivers. IC Role / Device Role / Timing Role: Recirculating diode across inductive loads to suppress L·di/dt voltage spikes. Use Value: 50 A IFSM handles worst-case relay coil energy; 36 pF CT limits RF emission during switching. |
| ADAS Camera Power Input Protection | Start-Stop System Auxiliary Rail Clamp |
Use Scenario: Safeguards 5 V/3.3 V camera module power inputs against reverse connection during assembly or field repair. IC Role / Device Role / Timing Role: Polarity guard at front-end of DC-DC converter input stage. Use Value: -55°C to +175°C TJ range ensures reliability in hot under-hood locations; green compound meets OEM material traceability requirements. |
Use Scenario: Protects 12 V auxiliary circuits (e.g., HVAC blower, infotainment) during engine restart voltage sag and rebound. IC Role / Device Role / Timing Role: Bidirectional clamp using series-back-to-back configuration or standalone reverse-blocking element. Use Value: 0.77 V VF maintains regulation headroom for buck converters during cold cranking (6.5 V min); RθJC = 21 °C/W supports thermal stability without heatsink. |
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 | VRRM = 100 V, IF(AV) = 1.0 A, VF = 0.85 V @ 1 A (25°C), RθJA = 150 °C/W | Higher VF increases conduction loss; less suitable for thermally constrained PCBs. | Select when legacy footprint compatibility outweighs thermal efficiency needs. |
| SS110H | VRRM = 100 V, IF(AV) = 1.0 A, VF = 0.72 V @ 1 A (25°C), but no AEC-Q101 qualification or guard ring | Lacks automotive transient robustness; not approved for safety-critical modules. | Acceptable only for commercial-grade consumer power supplies with lower reliability demands. |
Compared with SB1100-TB and SS110H, DFLS1100-7 provides superior thermal performance (RθJA = 125 °C/W), lower VF (0.77 V), and automotive-grade reliability via guard ring and IATF 16949 manufacturing-making it optimal for ECU, BCM, and ADAS power protection where long-term field stability is mandatory.
Availability
DFLS1100-7 is available at Aetrix Electronics and suitable for automotive polarity protection, recirculating diode, and switching diode applications requiring stable component supply across production lifecycles.
Supply support for DFLS1100-7 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 DFLS1100 belongs to Diodes' POWERDI® Schottky rectifier product line, engineered specifically for high-reliability automotive power management where low VF, high surge tolerance, and extended temperature operation are essential.
FAQ
Is DFLS1100-7 qualified for automotive use?
No-the DFLS1100-7 is the commercial-grade version. Only the DFLS1100Q-7 variant carries AEC-Q101 qualification, PPAP capability, and is manufactured in IATF 16949 certified facilities. The -7 suffix indicates tape-and-reel packaging but does not imply automotive qualification.
What is the thermal pad layout recommendation for DFLS1100-7?
Diodes specifies a minimum 2 oz copper pad layout for optimal thermal performance. Recommended dimensions are provided in the PowerDI123 package outline (E = 3.5–3.9 mm, E1 = 2.6–3.0 mm, D = 1.63–1.93 mm). Use thermal vias under the cathode tab to enhance heat transfer to inner layers.
Can DFLS1100-7 replace a standard PN-junction rectifier in existing designs?
Yes-if VRRM and IF(AV) requirements match. Its Schottky architecture eliminates reverse recovery time (trr ≈ 0 ns), reducing EMI and enabling higher-frequency operation. However, verify IR at elevated temperatures, as Schottky leakage rises faster than PN diodes above 85°C.
What does the "POWERDI®123" package designation indicate?
POWERDI®123 is Diodes' proprietary surface-mount package: 3-pin compatible footprint (anode, cathode, thermal tab), 1.78 mm × 3.70 mm body size, and optimized thermal path through the cathode tab. It is not pin-compatible with SMA or SOD-123 but offers lower RθJA than those packages.
DFLS1100-7 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
- Operating Temperature - Junction:
- -55°C ~ 175°C
DFLS1100-7 FAQ
1.How can I place an order for DFLS1100-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLS1100-7 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 DFLS1100-7 reliable?
The price and inventory of DFLS1100-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLS1100-7 is usually 5 days.
3.What payment methods are accepted for DFLS1100-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLS1100-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLS1100-7?
DFLS1100-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLS1100-7 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 DFLS1100-7?
For technical support, including DFLS1100-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLS1100-7 requirements.
6.How does Aetrix verify that DFLS1100-7 is sourced from the original manufacturer or authorized distributors?
All DFLS1100-7 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 DFLS1100-7 meets industry standards.
7.What is the process for return or replacement of DFLS1100-7?
All DFLS1100-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLS1100-7, 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 DFLS1100-7 part is unused and in its original packaging.
Return procedure for DFLS1100-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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