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Diodes Incorporated DFLS130LQ-7
- Part No.:
- DFLS130LQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLS130LQ-7.pdf
- Description:
- DIODE SCHOTTKY 30V 1A PWRDI123
- Quantity:
- Payment:
- Shipping:
Inventory:14,710
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Product details
Overview
DFLS130LQ from Diodes Incorporated is a 1.0A, 30V surface-mount Schottky barrier rectifier in PowerDI123 package, featuring 0.36V max forward voltage at 1.5A and 1.0mA max reverse leakage at 30V. It delivers low power loss for automotive polarity protection and recirculating diode applications, qualified to AEC-Q101 with IATF 16949 manufacturing.
For engineers reviewing the DFLS130LQ datasheet, DFLS130LQ pinout, DFLS130LQ application, or DFLS130LQ equivalent, key selection criteria include its 50A non-repetitive surge rating, 10°C/W junction-to-solder thermal resistance, RoHS- and halogen-free "Green" construction, and suitability for space-constrained automotive power rails requiring high efficiency and transient robustness.
Technical Context
This Schottky rectifier uses guard ring die construction to enhance transient immunity and withstand repetitive voltage spikes common in automotive 12V systems. Its interlocking clip design enables high surge current handling (50A IFSM) without bond wire failure, critical for inductive load switching.
The device operates across –40°C to +125°C junction temperature range and achieves 0.21V typical VF at 0.1A, supporting low-voltage drop requirements in battery-sensitive circuits. Total capacitance is 76pF at 10V reverse bias, minimizing switching noise in DC/DC feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (V) | 30 V - Maximum blocking voltage compatible with 12V automotive systems including load dump transients. |
| IF(AV) (A) | 1.0 A - Continuous forward current rating at TJ = +121°C, suitable for sustained power rail protection. |
| VF MAX (V) | 0.36 V @ 1.5A - Low conduction loss reduces heat generation in compact PCB layouts. |
| IR MAX (mA) | 1.0 mA @ 30V - Low leakage preserves battery standby life in always-on vehicle modules. |
| RθJS (°C/W) | 10 °C/W - Efficient thermal path from die to solder joint enables direct PCB copper pad cooling. |
| IFS M (A) | 50 A - Withstands single half-sine surge events like motor commutation spikes without degradation. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors including HTGB, HTRB, and TCT. |
Pinout & Package
Package: PowerDI123 - Surface-mount, 3-pin, cathode-band marked, molded plastic case with matte tin annealed copper leadframe; UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input | Connected to power source side (e.g., battery positive); accepts up to 1.0A continuous forward current. |
| Cathode | Forward current output / reverse blocking terminal | Connected to load side; provides low-VF path during conduction and blocks 30V reverse voltage. |
| Cathode Tab | Thermal & electrical connection | Exposed metal tab on bottom surface serves as primary heat sink interface and electrically tied to cathode. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient voltage immunity per AEC-Q101 stress tests without external TVS. |
| Interlocking clip design | Enables 50A surge current handling while eliminating bond wire fatigue failure modes. |
| Lead-free, halogen-free "Green" compound | Meets EU RoHS 3 (2015/863/EU), <900ppm Br/Cl, <1000ppm Sb - compliant for global automotive supply chains. |
| PPAP-capable manufacturing | Produced in IATF 16949-certified facilities with full change control documentation for Tier-1 automotive programs. |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Power Input |
|---|---|
Use Scenario: Reverse polarity protection on 12V main power input to prevent damage during battery jump-start misconnection. IC Role / Device Role / Timing Role: Unidirectional current gate placed between battery feed and downstream LDOs/PMICs. Use Value: 0.36V VF minimizes voltage drop under 1A load, preserving regulation margin for sensitive microcontrollers. |
Use Scenario: Recirculation path for fuel injector solenoid coil energy dissipation during PWM turn-off. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback to protect driver MOSFETs. Use Value: 50A IFSM rating handles peak flyback currents without thermal runaway or parameter shift. |
| ADAS Camera Power Supply | Infotainment USB Charging Port |
Use Scenario: Input protection for 5V/3.3V camera module power rails exposed to CAN/LIN bus coupling noise. IC Role / Device Role / Timing Role: Low-capacitance (76pF) blocking diode isolating noisy supply domains. Use Value: Low CT reduces high-frequency noise injection into image sensor analog supply lines. |
Use Scenario: OR-ing diode in dual-input (USB-A + USB-C) charging circuit to prevent backfeed. IC Role / Device Role / Timing Role: Forward-biased isolation element enabling seamless source selection. Use Value: 0.21V typical VF at 0.1A ensures minimal voltage loss during low-current standby mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB130-E3/54 (Vishay) | Same 30V/1A rating but TO-277 package; higher RθJA (120°C/W); no AEC-Q101 qualification. | Limited to industrial/commercial use; unsuitable for PPAP-driven automotive designs. | Select only for cost-sensitive non-automotive applications where thermal performance allows larger footprint. |
| SS13 (ON Semiconductor) | 30V/1A, SMA package; VF = 0.45V @ 1A; IR = 0.5mA @ 30V; not AEC-Q101 qualified. | Higher conduction loss increases thermal load; lacks automotive reliability validation. | Acceptable for consumer-grade DC/DC inputs where surge immunity and long-term stability are secondary. |
Compared with SB130-E3/54 and SS13, DFLS130LQ offers superior thermal resistance (10°C/W vs. ≥120°C/W), lower VF (0.36V vs. ≥0.45V), and full AEC-Q101 compliance-making it the only choice for production automotive power rail protection requiring PPAP traceability and IATF 16949 sourcing.
Availability
DFLS130LQ is available at Aetrix Electronics and suitable for automotive body control modules, engine control units, ADAS camera power supplies, and infotainment USB charging ports requiring stable component supply with full automotive qualification traceability.
Supply support for DFLS130LQ 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 DFLS130LQ belongs to Diodes' Automotive-Grade Schottky Rectifier product line, engineered specifically for high-reliability 12V vehicle subsystems demanding AEC-Q101 qualification, low VF, and robust surge capability.
FAQ
Is DFLS130LQ suitable for 24V truck applications?
No. Its 30V VRRM rating provides only 6V margin above nominal 24V systems, insufficient for ISO 7637-2 load dump transients (up to 35V). For 24V platforms, Diodes recommends DFLS240LQ (40V rating) or equivalent higher-VR devices with ≥10V safety margin.
What is the recommended PCB pad layout for thermal performance?
Diodes specifies a 1"x1" copper pad on FR-4 with 75% cathode-side coverage for optimal RθJA (180°C/W). For best thermal results, use the official PowerDI123 pad layout from diodes.com/package-outlines.html, including thermal vias under the cathode tab connected to internal ground planes.
Does DFLS130LQ require derating at elevated ambient temperatures?
Yes. At TA = +85°C, IF(AV) must be reduced to ~0.65A per the derating curve in DS37060 Rev. 2–2, due to thermal limits at TJ = +121°C. Derating follows linear interpolation between 25°C (1.0A) and 121°C (0A) using RθJA = 180°C/W on standard FR-4.
Can DFLS130LQ replace older DFLS130 models in existing designs?
Yes, DFLS130LQ is a direct replacement for legacy DFLS130 variants with identical electrical specs and PowerDI123 footprint. The "LQ" suffix denotes enhanced AEC-Q101 qualification and green material compliance; no layout or firmware changes are required for migration.
DFLS130LQ-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):
- 30 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 360 mV @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 30 V
- Capacitance @ Vr, F:
- 76pF @ 10V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
- Operating Temperature - Junction:
- -40°C ~ 125°C
DFLS130LQ-7 FAQ
1.How can I place an order for DFLS130LQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLS130LQ-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 DFLS130LQ-7 reliable?
The price and inventory of DFLS130LQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLS130LQ-7 is usually 5 days.
3.What payment methods are accepted for DFLS130LQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLS130LQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLS130LQ-7?
DFLS130LQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLS130LQ-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 DFLS130LQ-7?
For technical support, including DFLS130LQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLS130LQ-7 requirements.
6.How does Aetrix verify that DFLS130LQ-7 is sourced from the original manufacturer or authorized distributors?
All DFLS130LQ-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 DFLS130LQ-7 meets industry standards.
7.What is the process for return or replacement of DFLS130LQ-7?
All DFLS130LQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLS130LQ-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 DFLS130LQ-7 part is unused and in its original packaging.
Return procedure for DFLS130LQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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