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Diodes Incorporated DFLS230LQ-7
- Part No.:
- DFLS230LQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLS230LQ-7.pdf
- Description:
- DIODE SCHOTTKY 30V 2A PWRDI123
- Quantity:
- Payment:
- Shipping:
Inventory:4,227
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Product details
Overview
DFLS230LQ from Diodes Incorporated is a 2.0A, 30V surface-mount Schottky barrier rectifier in PowerDI123 package, featuring 0.42V max forward voltage at 2.0A, 1.0mA max reverse leakage at 30V, and AEC-Q101 qualification for automotive polarity protection and recirculating diode applications.
For engineers reviewing the DFLS230LQ datasheet, DFLS230LQ pinout, DFLS230LQ application, or DFLS230LQ equivalent, this part supports high-reliability automotive power management where low VF, surge robustness (33A IFSM), and PPAP-capable manufacturing are required.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced failure and patented interlocking clip design to sustain 33A non-repetitive surge current under 8.3ms half-sine waveform. Its low RθJS of 10°C/W enables efficient thermal transfer from junction to solder joint.
Rated for −40°C to +125°C operating temperature and qualified per AEC-Q101, it delivers stable performance in engine control units and body electronics where ambient temperatures exceed 105°C and reliability under vibration/thermal cycling is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before breakdown; defines safe blocking capability in 12V/24V automotive systems. |
| IF(AV) | 2.0 A - Average forward current rating; supports continuous DC loads such as LED drivers or ECU power rails. |
| VF max | 0.42 V @ 2.0A - Low conduction loss reduces heat generation and improves system efficiency in high-duty-cycle switching paths. |
| IR max | 1.0 mA @ 30V - Reverse leakage threshold ensures minimal standby power drain in always-on vehicle modules. |
| IFSM | 33 A - Peak surge current handling; withstands load dump transients and inductive kickback without failure. |
| RθJS | 10 °C/W - Junction-to-solder thermal resistance; enables direct thermal coupling to PCB copper for passive cooling in space-constrained layouts. |
Pinout & Package
Package: PowerDI123 - Surface-mount plastic package with exposed cathode tab for thermal and electrical connection; UL 94V-0 rated, moisture sensitivity level 1, 0.01g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/power source side; requires minimum 1.05mm pad width for solder reliability. |
| Cathode | Forward current exit / common return | Exposed metal tab serves as primary thermal path and electrical return; must be soldered to ≥2.4mm × 1.5mm copper area. |
| Cathode Band | Polarity indicator | Visible marking on molded body identifies cathode terminal; critical for correct orientation during automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown during voltage transients, extending lifetime in noisy automotive environments. |
| Interlocking clip design | Enables 33A surge current capacity without bond wire lift-off or thermal delamination. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, mechanical shock, and humidity testing per JESD47. |
| Halogen- and antimony-free "Green" compound | Meets EU RoHS 3 and automotive ELV directives with <900ppm Br, <900ppm Cl, <1000ppm Sb. |
Applications
| Engine Control Unit (ECU) Polarity Protection | Body Control Module (BCM) Recirculation |
|---|---|
Use Scenario: Prevents reverse battery connection damage in 12V ECU power inputs subjected to jump-start conditions. IC Role / Device Role / Timing Role: Unidirectional blocking device placed in series with main power rail; conducts only during correct polarity. Use Value: 0.42V VF minimizes voltage drop across protection path, preserving >11.5V supply headroom at 2A load. | Use Scenario: Suppresses back-EMF from solenoid actuators (e.g., door locks, mirror adjusters) in BCM outputs. IC Role / Device Role / Timing Role: Freewheeling path for inductive energy dissipation; clamps voltage spike to ≤30V. Use Value: 33A IFSM handles repeated 25A coil turn-off surges without degradation over 100k cycles. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Provides clean, low-noise DC input to image sensor power regulators in rear-view and surround-view cameras. IC Role / Device Role / Timing Role: Input rectifier and noise filter; low CT (76pF) minimizes RF coupling into analog imaging circuits. Use Value: 76pF capacitance at 10V reverse bias reduces high-frequency ripple injection into LDO inputs. | Use Scenario: Isolates Hall-effect sensor supply from EPS motor drive noise in torque-sensing subsystems. IC Role / Device Role / Timing Role: Reverse-polarity safeguard on 5V sensor rail; operates continuously at −40°C to +125°C ambient. Use Value: Guaranteed operation across full AEC-Q100 Grade 0 range ensures signal integrity during cold cranking and under-hood thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB230-E3/54 | Higher VF (0.52V @ 2A), TO-277 package, no AEC-Q101 qualification | Lacks automotive qualification; suitable for industrial power supplies but not PPAP-controlled vehicle programs | Select when cost is prioritized over automotive compliance and thermal performance is less constrained. |
| SS23HE3_A/H | Same 30V/2A rating, SMA package, 0.45V VF, AEC-Q101 qualified | Lower surge rating (25A IFSM), smaller thermal pad area limits power dissipation in high-ambient designs | Choose for space-limited layouts where 33A surge margin is not required and board-level thermal relief is adequate. |
Compared with SB230-E3/54 and SS23HE3_A/H, DFLS230LQ offers superior thermal performance (RθJS = 10°C/W), higher surge robustness (33A), and verified PPAP readiness-making it the preferred choice for safety-critical automotive power nodes requiring long-term field reliability.
Availability
DFLS230LQ is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera power supplies, and electric power steering sensor interfaces requiring stable component supply across automotive production lifecycles.
Supply support for DFLS230LQ 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 PowerDI® rectifier product line targets automotive and industrial power conversion, emphasizing AEC-Q101 qualification, low VF, and thermally optimized packages for high-reliability DC/DC and protection circuits.
FAQ
Is DFLS230LQ suitable for 24V commercial vehicle applications?
Yes. With 30V VRRM and AEC-Q101 qualification, DFLS230LQ supports 24V nominal systems including trucks and buses. Its 125°C TJ rating and 33A surge capability handle load dump events up to ISO 7637-2 Pulse 5a, provided PCB thermal design meets Diodes' recommended pad layout.
What is the maximum allowable PCB copper area for the cathode tab?
Diodes specifies a minimum 2.40mm × 1.50mm copper pad (X1 × Y1) for optimal thermal performance. Larger copper areas improve RθJA but do not reduce RθJS, which is fixed by internal construction. Excessive copper may impede reflow profiling due to thermal mass imbalance.
Does DFLS230LQ require derating at elevated ambient temperatures?
Yes. At TA = 85°C, IF(AV) must be reduced to 1.3A per Figure 5 in DS37065 Rev. 3–2. Derating follows linear interpolation between 2.0A at 25°C and 0A at 125°C, based on its 60°C/W RθJA on GETEK test board.
Can DFLS230LQ replace through-hole rectifiers like 1N5822 in automotive designs?
Yes, with layout adaptation. DFLS230LQ matches 1N5822's 30V/3A rating but offers lower VF (0.42V vs. 0.55V) and surface-mount compatibility. Its PowerDI123 footprint requires redesign from DO-201AD, but delivers better thermal performance and AEC-Q101 compliance absent in legacy parts.
DFLS230LQ-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):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 420 mV @ 2 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
DFLS230LQ-7 FAQ
1.How can I place an order for DFLS230LQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLS230LQ-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 DFLS230LQ-7 reliable?
The price and inventory of DFLS230LQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLS230LQ-7 is usually 5 days.
3.What payment methods are accepted for DFLS230LQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLS230LQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLS230LQ-7?
DFLS230LQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLS230LQ-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 DFLS230LQ-7?
For technical support, including DFLS230LQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLS230LQ-7 requirements.
6.How does Aetrix verify that DFLS230LQ-7 is sourced from the original manufacturer or authorized distributors?
All DFLS230LQ-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 DFLS230LQ-7 meets industry standards.
7.What is the process for return or replacement of DFLS230LQ-7?
All DFLS230LQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLS230LQ-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 DFLS230LQ-7 part is unused and in its original packaging.
Return procedure for DFLS230LQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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