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Diodes Incorporated PDS340Q-13
- Part No.:
- PDS340Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
PDS340Q-13.pdf
- Description:
- DIODE SCHOTTKY 40V 3A POWERDI5
- Quantity:
- Payment:
- Shipping:
Inventory:5,312
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Product details
Overview
PDS340Q-13 from Diodes Incorporated is a 40 V, 3 A automotive-grade Schottky barrier rectifier in PowerDI-5 package, featuring 0.49 V max forward voltage at 3 A and 500 µA max reverse leakage at 40 V and +25°C. It serves as polarity protection, freewheeling, and switching diode in low-voltage DC/DC converters and engine control units.
For engineers reviewing the PDS340Q-13 datasheet, PDS340Q-13 pinout, PDS340Q-13 application, or PDS340Q-13 equivalent, key selection criteria include its AEC-Q101 qualification, 90 A non-repetitive surge rating, thermal resistance of 6.0 °C/W (junction-to-solder point), and compatibility with high-frequency, low-loss power conversion topologies.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced failure and supports continuous operation from –55°C to +150°C. Its low VF (0.45 V typ. @ 3 A, +25°C) and low IR (15 µA typ. @ 40 V, +25°C) directly reduce conduction loss and standby power dissipation in 12 V automotive systems.
The PowerDI-5 package integrates an exposed heat sink on the bottom side, enabling 6.0 °C/W junction-to-solder-point thermal resistance when mounted on FR-4 PCB with recommended pad layout. Pin configuration mandates electrical connection of left and right terminals on PCB for optimal current sharing and thermal path integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (V) | 40 V - Maximum DC blocking voltage; defines safe operating range in 12 V/24 V automotive bus clamping and reverse polarity protection. |
| IO (A) | 3 A - Continuous average forward current; supports steady-state load handling in ECU power rails and LED drivers. |
| VF MAX (V) | 0.49 V @ 3 A, +25°C - Low conduction loss enables >92% efficiency in 5–12 V buck converter freewheel paths. |
| IR MAX (µA) | 500 µA @ 40 V, +25°C - Minimal leakage preserves battery life in always-on vehicle modules. |
| IFSM (A) | 90 A @ 8.3 ms - Withstands inrush and load dump transients per ISO 7637-2 without degradation. |
| RθJS (°C/W) | 6.0 - Enables direct thermal coupling to PCB copper; critical for sustained 3 A operation without heatsink. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronics including temperature cycling, HTRB, and ESD. |
Pinout & Package
Package: PowerDI-5 - Surface-mount, thermally enhanced plastic package with exposed bottom-side heat sink. Dimensions: 3.966 mm × 6.51 mm × 1.10 mm (L × W × A). Terminals: Matte tin–annealed copper leadframe; left and right pins must be electrically joined on PCB for rated current and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Left) | Current entry point | Connected to input rail or switch node; requires minimum 1.8 mm × 1.1 mm copper pad per datasheet. |
| Cathode (Right) | Current exit point | Connected to ground or return path; requires larger 6.5 mm × 5.0 mm thermal pad for RθJS optimization. |
| Heat Sink (Bottom) | Thermal interface | Exposed copper area forms primary thermal path to PCB; not electrically isolated. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown during voltage transients; extends reliability under ISO 7637-2 pulse 5a/b conditions. |
| AEC-Q101 qualification | Validated for automotive underhood environments including 1000-hr HTOL at +150°C and 1000-cycle temperature cycling (–55°C to +150°C). |
| Lead-free, halogen-free "Green" | Complies with RoHS 3 (2015/863/EU); Br+Cl <1500 ppm, Sb <1000 ppm - meets Tier 1 supplier environmental requirements. |
| PPAP capability | Supports Production Part Approval Process documentation including FAI, control plans, and MSA for OEM production release. |
Applications
| Engine Control Unit (ECU) Polarity Protection | Automotive LED Headlamp Driver |
|---|---|
Use Scenario: Prevents damage from battery cable reversal during service or jump-start events in 12 V ECU power inputs. IC Role / Device Role / Timing Role: Unidirectional current gate placed between battery connector and main DC/DC input stage. Use Value: 0.49 V VF limits voltage drop to <0.5 V at 3 A, preserving >11.5 V supply headroom for microcontroller operation. | Use Scenario: Freewheeling path for inductive current in constant-current LED driver buck stages. IC Role / Device Role / Timing Role: Synchronous rectification alternative with zero recovery time and minimal switching loss. Use Value: 90 A IFSM withstands lamp short-circuit transients; 500 µA IR prevents parasitic drain in sleep mode. |
| Start-Stop System DC/DC Converter | Body Control Module (BCM) Reverse Battery Protection |
Use Scenario: Output rectification in 48 V–12 V bidirectional DC/DC converters used in mild hybrid vehicles. IC Role / Device Role / Timing Role: High-efficiency output diode replacing MOSFET synchronous rectifiers where gate drive complexity is prohibitive. Use Value: 0.45 V VF typ. at +125°C maintains conduction loss below 1.4 W at 3 A, reducing thermal load on compact converters. | Use Scenario: Isolates BCM from reverse-connected battery during maintenance or faulty installation. IC Role / Device Role / Timing Role: Series-blocking diode in main 12 V input rail with fail-safe open-circuit behavior on reverse bias. Use Value: 40 V VR rating exceeds 12 V system's worst-case load dump (up to 35 V), ensuring robust blocking without avalanche stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB340-E3/52T (Vishay) | Same 40 V/3 A rating but TO-277 package; RθJA = 75 °C/W (FR-4); no AEC-Q101 qualification. | Limited to industrial/commercial use; unsuitable for PPAP-managed automotive programs. | Select only if AEC-Q101 and PPAP are not required and board space allows TO-277 footprint. |
| SS34H (ON Semiconductor) | 40 V/3 A, SMA package; VF = 0.52 V max @ 3 A; RθJA = 80 °C/W; AEC-Q101 qualified but no PPAP support. | Acceptable for non-PPAP automotive designs; higher VF increases conduction loss by ~60 mW at 3 A. | Choose when cost sensitivity outweighs thermal and process compliance requirements. |
Compared with SB340-E3/52T and SS34H, PDS340Q-13 uniquely combines AEC-Q101 qualification, PPAP capability, PowerDI-5's 6.0 °C/W RθJS, and 0.49 V VF - making it the only option for thermally constrained, production-release automotive modules requiring full OEM compliance.
Availability
PDS340Q-13 is available at Aetrix Electronics and suitable for automotive engine control units, LED lighting drivers, start-stop DC/DC converters, and body control modules requiring stable component supply across multi-year production cycles.
Supply support for PDS340Q-13 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 high-reliability automotive and industrial power conversion, emphasizing low VF, AEC-Q101 compliance, and thermally optimized packages for space-constrained applications.
FAQ
What is the maximum junction temperature for continuous operation?
The PDS340Q-13 has an operating junction temperature range of –55°C to +150°C. For continuous 3 A operation, thermal design must ensure TJ remains ≤ +150°C using the 6.0 °C/W RθJS value and measured solder point temperature. Derating curves in Figure 5 show ambient temperature limits decrease linearly above +70°C.
Is the PowerDI-5 package lead-free and RoHS compliant?
Yes. The PDS340Q-13 features matte tin–annealed leadframe finish and green molding compound compliant with EU RoHS 2015/863/EU (RoHS 3), containing <900 ppm bromine, <900 ppm chlorine, and <1000 ppm antimony. Full compliance documentation is available via Diodes Incorporated's quality portal.
How should the left and right pins be routed on the PCB?
The left (anode) and right (cathode) pins must be electrically connected to separate copper nets, but both require dedicated thermal pads tied to internal ground or power planes. Per datasheet note, left and right pins are *not* internally shorted - external PCB traces must maintain isolation while providing independent current paths and thermal relief.
Does PDS340Q-13 support reflow soldering per J-STD-020?
Yes. The device is rated for moisture sensitivity level 1 per J-STD-020 and supports standard Pb-free reflow profiles (peak 260°C, 20–40 sec above 217°C). Recommended pad layouts for FR-4 and polyimide PCBs are published in Diodes' package outline documents.
PDS340Q-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 490 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -55°C ~ 150°C
PDS340Q-13 FAQ
1.How can I place an order for PDS340Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDS340Q-13 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 PDS340Q-13 reliable?
The price and inventory of PDS340Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDS340Q-13 is usually 5 days.
3.What payment methods are accepted for PDS340Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDS340Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDS340Q-13?
PDS340Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDS340Q-13 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 PDS340Q-13?
For technical support, including PDS340Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDS340Q-13 requirements.
6.How does Aetrix verify that PDS340Q-13 is sourced from the original manufacturer or authorized distributors?
All PDS340Q-13 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 PDS340Q-13 meets industry standards.
7.What is the process for return or replacement of PDS340Q-13?
All PDS340Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with PDS340Q-13, 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 PDS340Q-13 part is unused and in its original packaging.
Return procedure for PDS340Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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