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Diodes Incorporated DFLS230Q-7
- Part No.:
- DFLS230Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLS230Q-7.pdf
- Description:
- DIODE SCHOTTKY 30V 2A PWRDI123
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
DFLS230Q from Diodes Incorporated is a 2.0A, 30V surface-mount Schottky barrier rectifier in PowerDI123 package, featuring 0.49V max forward voltage at 2.0A and 1.0mA max reverse leakage at 30V. It delivers ultra-low power loss for automotive polarity protection and recirculating diode applications, with AEC-Q101 qualification and IATF16949 manufacturing.
For engineers reviewing the DFLS230Q datasheet, DFLS230Q pinout, DFLS230Q application, or DFLS230Q equivalent, key selection criteria include its 40A non-repetitive surge rating, 17ns reverse recovery time, thermal resistance of 55°C/W (on 1-inch² 2oz copper), ESD HBM rating of 4000V, and compliance with automotive change control requirements.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced failure and patented interlocking clip design to sustain 40A single-half-sine surge current without bond wire lift-off. Its low VF (0.36–0.49V) and 75pF capacitance at 10V enable high-efficiency DC/DC output rectification and fast-switching flyback snubbing.
Rated for -55°C to +125°C operation, it achieves 55°C/W junction-to-ambient thermal resistance on a 1-inch² 2oz copper pad-critical for under-hood automotive modules where ambient temperatures exceed 105°C and power density constraints limit heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (V) | 30 V - Maximum blocking voltage; ensures safe operation in 24V automotive systems with load dump transients up to ±35V. |
| IF(AV) (A) | 2.0 A - Continuous DC forward current; supports sustained 24V/2A power rail protection without derating below 105°C ambient. |
| VF MAX (V) | 0.49 V @ 2.0A - Low conduction loss reduces power dissipation to ≤0.98W, minimizing thermal stress in compact PCB layouts. |
| IR MAX (mA) | 1.0 mA @ 30V - Low leakage preserves battery standby life in always-on vehicle modules such as body control units. |
| tRR (ns) | 17 ns - Fast switching enables use in high-frequency (>100kHz) synchronous rectifier circuits and PWM-driven inductive loads. |
| RθJA (°C/W) | 55 °C/W - Measured on 1-inch² 2oz copper pad; allows direct thermal coupling to ground plane without external heatsink in space-constrained ECUs. |
| ESD HBM | 4000 V - Robust electrostatic immunity meets ISO 10605 requirements for assembly-line handling and in-vehicle EMI environments. |
Pinout & Package
Package: PowerDI123 - ultra-small surface-mount plastic package (1.78mm × 3.70mm × 0.98mm), UL 94V-0 rated, moisture sensitivity level 1, matte tin annealed terminals solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input | Connected to power source side (e.g., battery+); internal copper leadframe provides low-inductance path for surge current. |
| Cathode | Forward current output / reverse blocking terminal | Marked by cathode band; large-area tab enables efficient heat transfer to PCB copper; serves as primary thermal interface. |
Key Features
| Feature | Design Value |
|---|---|
| Patented interlocking clip design | Enables 40A IFSM surge capability without bond wire failure-critical for motor driver recirculation paths. |
| Guard ring die construction | Suppresses edge breakdown during voltage transients, extending lifetime in 12V/24V automotive power nets with ISO 7637-2 pulses. |
| Low VF (0.36V typ @ 1A) | Reduces conduction loss by >30% vs. standard silicon rectifiers, enabling smaller thermal pads and higher power density in ADAS camera modules. |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling (-55°C to +125°C), mechanical shock, and board-level reliability testing. |
| Halogen & antimony free | Meets automotive "Green" standards (<900ppm Br+Cl, <1000ppm Sb), supporting OEM sustainability compliance and end-of-life recycling. |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Power Protection |
|---|---|
Use Scenario: Polarity reversal protection on 12V main supply input to BCM microcontroller and CAN transceivers. IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage from incorrect battery connection during service. Use Value: 0.49V VF limits voltage drop to <2% at 2A, preserving brown-out margin for 3.3V LDOs while surviving 40A jump-start surges. |
Use Scenario: Recirculating diode across fuel injector solenoid coil in 24V diesel ECU. IC Role / Device Role / Timing Role: Freewheeling path for inductive kickback energy during PWM turn-off. Use Value: 17ns tRR minimizes voltage overshoot and EMI; 75pF CT reduces radiated emissions in engine bay near sensitive sensors. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Output rectifier in buck converter supplying 5V to image sensor and ISP ASIC. IC Role / Device Role / Timing Role: High-efficiency DC/DC output stage operating at 500kHz switching frequency. Use Value: 0.36V typical VF at 1A cuts conduction loss by 65% vs. Si diode, reducing thermal load in sealed camera housing. |
Use Scenario: Clamping diode across H-bridge MOSFETs in 48V EPS motor driver. IC Role / Device Role / Timing Role: Transient energy sink during regenerative braking and phase commutation. Use Value: Guard ring die withstands repetitive 30V transients; 55°C/W RθJA maintains <115°C junction temp at 2A continuous. |
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 (Vishay) | Same 30V/2A rating but TO-220AC package; VF = 0.52V @ 2A; RθJA = 50°C/W (with heatsink only). | Requires external heatsink and through-hole mounting; unsuitable for high-density SMT automotive PCBs. | Select only when legacy TO-220 footprint compatibility or higher surge margin (60A IFSM) is required. |
| SS23 (ON Semiconductor) | SOD-123 package; 30V/2A; VF = 0.5V @ 2A; RθJA = 180°C/W; no AEC-Q101 qualification. | Limited to consumer/industrial use; insufficient thermal performance and reliability for under-hood deployment. | Acceptable only for cost-sensitive non-automotive designs where ambient stays below 60°C and surge events are absent. |
Compared with SB230-E3/54 and SS23, DFLS230Q uniquely combines AEC-Q101 qualification, PowerDI123 SMT form factor, 55°C/W thermal resistance, and 40A surge rating-making it the only option qualified for space-constrained, thermally demanding automotive power rails.
Availability
DFLS230Q is available at Aetrix Electronics and suitable for automotive body control modules, engine control units, ADAS camera power supplies, and electric power steering systems requiring stable component supply and full AEC-Q101 traceability.
Supply support for DFLS230Q 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 DFLS230Q belongs to Diodes' automotive-qualified Schottky rectifier product line, engineered specifically for high-reliability power conversion and protection in harsh-temperature, high-surge automotive subsystems.
FAQ
Is DFLS230Q suitable for 48V mild-hybrid automotive systems?
No. Its 30V VR rating makes it appropriate for 12V and 24V nominal systems only. For 48V architectures, Diodes offers the DFLS345Q (45V) and DFLS360Q (60V) in the same PowerDI123 package with matching AEC-Q101 qualification and thermal performance.
What is the maximum recommended PCB copper area for optimal thermal performance?
For best thermal performance, Diodes specifies a 1-inch² (25.4mm × 25.4mm) 2oz copper pad under the cathode tab, achieving RθJA = 55°C/W. Smaller pads increase thermal resistance linearly-e.g., a 0.5-inch² pad raises RθJA to ~110°C/W per datasheet Note 8.
Does DFLS230Q require derating when used in capacitive-load applications?
Yes. Per datasheet maximum ratings, average forward current must be derated by 20% for capacitive loads due to higher peak currents during charging cycles. At 25°C ambient, IF(AV) is limited to 1.6A-not 2.0A-when driving bulk capacitance directly after rectification.
Can DFLS230Q replace standard silicon rectifiers like 1N5819 in existing designs?
Yes, with electrical and layout verification. Its lower VF improves efficiency, but its 75pF capacitance is ~2× higher than 1N5819's 35pF-potentially increasing EMI in high-frequency switching circuits. Layout must maintain short traces and avoid routing near sensitive analog nodes.
DFLS230Q-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:
- 490 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 30 V
- Capacitance @ Vr, F:
- 75pF @ 10V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
- Operating Temperature - Junction:
- -55°C ~ 125°C
DFLS230Q-7 FAQ
1.How can I place an order for DFLS230Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLS230Q-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 DFLS230Q-7 reliable?
The price and inventory of DFLS230Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLS230Q-7 is usually 5 days.
3.What payment methods are accepted for DFLS230Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLS230Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLS230Q-7?
DFLS230Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLS230Q-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 DFLS230Q-7?
For technical support, including DFLS230Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLS230Q-7 requirements.
6.How does Aetrix verify that DFLS230Q-7 is sourced from the original manufacturer or authorized distributors?
All DFLS230Q-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 DFLS230Q-7 meets industry standards.
7.What is the process for return or replacement of DFLS230Q-7?
All DFLS230Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLS230Q-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 DFLS230Q-7 part is unused and in its original packaging.
Return procedure for DFLS230Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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