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Diodes Incorporated DFLS1200Q-7
- Part No.:
- DFLS1200Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLS1200Q-7.pdf
- Description:
- DIODE SCHOTTKY 200V 1A PWRDI123
- Quantity:
- Payment:
- Shipping:
Inventory:40,203
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Product details
Overview
DFLS1200Q-7 from Diodes Incorporated is a 200 V, 1.0 A AEC-Q101-qualified Schottky barrier rectifier in PowerDI123 package, featuring 0.85 V max forward voltage at 1.0 A and 2 μA max reverse leakage at 200 V, designed for polarity protection and recirculating diode functions in automotive power rails.
For engineers reviewing the DFLS1200Q-7 datasheet, DFLS1200Q-7 pinout, DFLS1200Q-7 application, or DFLS1200Q-7 equivalent, key selection criteria include its 40 A non-repetitive surge rating, 132 °C/W junction-to-ambient thermal resistance, RoHS- and halogen-free "Green" construction, and IATF 16949-certified manufacturing for mission-critical automotive systems.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced avalanche failure and patented interlocking clip design to sustain 40 A single-half-sine surge current without bond wire lift-off. Its low 0.85 V VF enables high-efficiency DC/DC output rectification in space-constrained automotive modules.
With 23 pF typical junction capacitance at 5 V and 200 V peak repetitive reverse voltage, it supports fast-switching applications up to ~1 MHz while maintaining stable blocking behavior across -55°C to +150°C operating range - validated per AEC-Q101 stress test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Sustains full-rated reverse voltage in automotive 24 V systems with margin against load dump transients. |
| IF(AV) | 1.0 A - Continuous forward current handling for compact body control module (BCM) power paths. |
| VF max | 0.85 V @ 1.0 A - Reduces conduction loss by >30% vs. standard PN rectifiers, lowering thermal stress on PCB. |
| IR max | 2 μA @ 200 V - Ensures minimal standby leakage in always-on vehicle networks (e.g., CAN wake-up circuits). |
| IFSM | 40 A @ 8.3 ms - Withstands motor stall or solenoid de-energization surges without degradation. |
| RθJA | 132 °C/W - Requires ≥2 oz copper pad for thermal compliance in ambient temperatures up to +105°C. |
| AEC-Q101 | Qualified - Validated for automotive under temperature cycling, HTRB, HTGB, and ESD testing per JEDEC standards. |
Pinout & Package
Package: PowerDI123 - surface-mount, 3-pin, cathode-band-marked plastic package with matte tin–annealed copper leadframe; UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input rail (e.g., battery+); requires thermal relief pad for solder joint reliability. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to load or ground return; serves as primary heat path to PCB via exposed tab. |
| Tab (Cathode) | Thermal and electrical cathode extension | Integral metal tab provides low-inductance, low-resistance cathode connection and primary thermal conduction path to PCB copper. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Prevents edge avalanche breakdown during voltage transients, enabling robust operation in noisy automotive environments. |
| Interlocking clip design | Eliminates bond wire fatigue under repeated surge stress, ensuring long-term reliability in motor drive recirculation paths. |
| Lead-free, halogen-free "Green" compound | Meets EU RoHS 3 (2015/863/EU) and automotive OEM material declarations with <900 ppm Br/Cl and <1000 ppm Sb. |
| IATF 16949 manufacturing | Guarantees process control, traceability, and PPAP documentation support for Tier 1 automotive supply chain requirements. |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Power Input |
|---|---|
Use Scenario: Reverse-polarity protection on 12 V/24 V supply input of BCM subassemblies. IC Role / Device Role / Timing Role: Unidirectional blocking element placed in series with main power rail. Use Value: Prevents catastrophic damage from accidental battery reversal while adding <0.85 V drop at full load. |
Use Scenario: Recirculating diode across fuel injector coil in 4-cylinder ECU. IC Role / Device Role / Timing Role: Freewheeling path for inductive kickback during transistor turn-off. Use Value: Limits voltage spike to ≤200 V and dissipates energy with 0.85 V conduction loss, reducing MOSFET stress. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Output rectification in isolated DC/DC converter supplying image sensor bias rails. IC Role / Device Role / Timing Role: High-frequency synchronous rectifier alternative in 500 kHz flyback secondary side. Use Value: Enables >92% efficiency at 1 A load with 23 pF junction capacitance minimizing switching node ringing. |
Use Scenario: Polarity protection for LIN bus transceiver power pins in EPS torque sensor assembly. IC Role / Device Role / Timing Role: Low-leakage series diode ensuring <2 μA standby current in always-on LIN nodes. Use Value: Extends system sleep-mode battery life while surviving automotive load dump pulses up to ISO 7637-2 Pulse 5a. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB1200-E3/54 (Vishay) | Same 200 V / 1.0 A rating but TO-277 package; higher RθJA (150 °C/W); no AEC-Q101 qualification. | Limited to industrial/non-automotive use due to lack of automotive qualification and lower surge rating (30 A). | Select only if AEC-Q101 is not required and board space allows larger TO-277 footprint. |
| SS120H (ON Semiconductor) | 200 V / 1.0 A, SMA package; VF = 0.87 V; IR = 5 μA; AEC-Q101 qualified but no IATF 16949 production evidence. | Suitable for cost-sensitive automotive modules where 3 μA extra leakage is acceptable and thermal budget permits SMA's higher RθJA. | Prefer when legacy SMA layout exists and full PPAP support is not mandated by OEM. |
Compared with SB1200-E3/54 and SS120H, DFLS1200Q-7 uniquely combines AEC-Q101 qualification, IATF 16949 manufacturing, 40 A surge capability, and PowerDI123's superior thermal performance - making it the only choice for new automotive designs requiring full Tier 1 compliance and high-reliability recirculation.
Availability
DFLS1200Q-7 is available at Aetrix Electronics and suitable for automotive body electronics, engine management systems, and ADAS power supplies requiring stable component supply, full automotive qualification, and RoHS-compliant sourcing.
Supply support for DFLS1200Q-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, specializing in high-reliability components for automotive, industrial, and computing markets with over 50 years of power device expertise.
The DFLS1200Q-7 belongs to Diodes' Automotive-Grade Schottky Rectifier product line, engineered specifically for harsh-environment polarity protection, freewheeling, and OR-ing functions in 12 V/24 V vehicle architectures.
FAQ
Is DFLS1200Q-7 suitable for 48 V mild-hybrid automotive systems?
No. Its 200 V VRRM rating is optimized for 12 V/24 V architectures with load dump margins. For 48 V systems, Diodes recommends the DFLS2600Q (600 V) or DFLS3200Q (200 V with enhanced surge) - both AEC-Q101 qualified and validated for 48 V battery transient profiles per ISO 16750-2.
What is the recommended PCB pad layout for thermal performance?
Use the official PowerDI123 pad layout from Diodes' package outline document (PN: PDI123-001), featuring a 3.7 mm × 2.8 mm cathode thermal pad with ≥2 oz copper and 4 thermal vias (0.3 mm diameter, spaced ≤1 mm apart) connecting to inner ground plane - achieving ≤7 °C/W effective RθJS in production assemblies.
Does DFLS1200Q-7 require derating at elevated ambient temperatures?
Yes. Per Figure 4 in DS37057, average forward current must be linearly derated from 1.0 A at +25°C to 0.5 A at +105°C ambient. This is enforced by its 132 °C/W RθJA and 150°C maximum junction temperature - critical for under-hood ECU placement.
Can DFLS1200Q-7 replace standard PN rectifiers like 1N4007 in automotive designs?
Yes, with significant benefits: 0.85 V VF vs. ~1.1 V for 1N4007 reduces conduction loss by 23% at 1 A, lowers thermal rise, and eliminates reverse recovery noise. However, its 200 V rating matches 1N4007's 1000 V - so verify system transient limits before substitution in high-voltage legacy circuits.
DFLS1200Q-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):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 2 µA @ 200 V
- Capacitance @ Vr, F:
- 23pF @ 5V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
- Operating Temperature - Junction:
- -55°C ~ 150°C
DFLS1200Q-7 FAQ
1.How can I place an order for DFLS1200Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLS1200Q-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 DFLS1200Q-7 reliable?
The price and inventory of DFLS1200Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLS1200Q-7 is usually 5 days.
3.What payment methods are accepted for DFLS1200Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLS1200Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLS1200Q-7?
DFLS1200Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLS1200Q-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 DFLS1200Q-7?
For technical support, including DFLS1200Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLS1200Q-7 requirements.
6.How does Aetrix verify that DFLS1200Q-7 is sourced from the original manufacturer or authorized distributors?
All DFLS1200Q-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 DFLS1200Q-7 meets industry standards.
7.What is the process for return or replacement of DFLS1200Q-7?
All DFLS1200Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLS1200Q-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 DFLS1200Q-7 part is unused and in its original packaging.
Return procedure for DFLS1200Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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