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Diodes Incorporated PDS340-13
- Part No.:
- PDS340-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
PDS340-13.pdf
- Description:
- DIODE SCHOTTKY 40V 3A POWERDI5
- Quantity:
- Payment:
- Shipping:
Inventory:20,116
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Product details
Overview
PDS340-13 from Diodes Incorporated is a 40 V, 3 A surface-mount Schottky barrier rectifier in the POWERDI®5 package, featuring 0.45 V forward voltage at 3 A and 15 µA reverse leakage at 40 V/25°C, optimized for low-voltage DC/DC conversion, free-wheeling in synchronous buck converters, and polarity protection in automotive body electronics.
For engineers reviewing the PDS340-13 datasheet, PDS340-13 pinout, PDS340-13 application, or PDS340-13 equivalent, key selection criteria include its 90 A non-repetitive surge rating, 6.0 °C/W junction-to-solder-point thermal resistance, AEC-Q101 qualification, and compatibility with FR-4 and polyimide PCB layouts per Diodes' AP02001 pad recommendations.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced avalanche failure and sustain high reliability under repetitive surge stress. Its low VF and low IR are achieved via optimized platinum-silicide metallization and shallow-junction epitaxial processing.
The device operates across –65°C to +150°C and supports derated forward current up to 2.5 A at +100°C ambient on FR-4 (2 oz Cu), with thermal performance varying by PCB material and pad geometry-60 °C/W on polyimide and 50 °C/W with enlarged cathode/anode pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage | 40 V - Maximum blocking capability without breakdown in reverse bias |
| Avg. Forward Current | 3 A - Continuous DC output current at TA = +25°C with recommended PCB layout |
| Forward Voltage | 0.45 V @ 3 A, 25°C - Enables <1.4 W conduction loss at rated load |
| Reverse Leakage | 15 µA @ 40 V, 25°C - Minimizes standby power loss in battery-backed systems |
| Surge Current | 90 A (8.3 ms half-sine) - Withstands inductive kickback in motor drive freewheeling |
| Junction–Solder Rθ | 6.0 °C/W - Enables direct thermal coupling to PCB copper for efficient heat extraction |
| AEC-Q101 Qualified | Yes - Validated for automotive under-hood applications per stress test requirements |
Pinout & Package
Package: POWERDI®5 - Surface-mount, 2-terminal plastic-molded package with exposed cathode pad (6.5 mm × 5.0 mm) and small anode pad (1.8 mm × 1.1 mm); UL 94V-0 rated, halogen/antimony-free "Green" compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction path | Connected to higher-potential node (e.g., switch node in buck converter) |
| Cathode | Output terminal for forward conduction path | Connected to output rail or ground return; large copper area required for thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Prevents edge avalanche during voltage transients, improving robustness in noisy automotive environments |
| Low VF at high temperature | 0.42 V @ 3 A, 125°C - Maintains efficiency in under-hood thermal conditions |
| High surge capability | 90 A single-half-sine - Supports reliable operation during motor startup or load dump events |
| RoHS & "Green" compliant | Meets EU RoHS 2 and halogen/antimony thresholds (<900 ppm Br/Cl, <1000 ppm Sb) |
Applications
| Automotive Body Control Module | Synchronous Buck Converter Output Stage |
|---|---|
Use Scenario: Polarity reversal protection on 12 V supply input to BCM microcontroller and CAN transceivers. IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage from incorrect battery connection. Use Value: 0.45 V VF minimizes voltage drop and heat generation during normal operation; AEC-Q101 ensures field reliability. | Use Scenario: Free-wheeling path in 5 V/3 A point-of-load regulator feeding infotainment SoC. IC Role / Device Role / Timing Role: Provides low-loss return path for inductor current when high-side MOSFET is off. Use Value: 6.0 °C/W RθJS enables stable operation at full load without heatsink on standard 2 oz FR-4. |
| USB-C Power Delivery Adapter | Industrial 24 V DC Power Input Protection |
Use Scenario: Output rectification in 20 V/3 A flyback secondary stage for USB-PD PPS compliance. IC Role / Device Role / Timing Role: Converts transformer AC output to regulated DC with minimal conduction loss. Use Value: 15 µA IR at 20 V ensures negligible standby leakage, critical for Energy Star efficiency certification. | Use Scenario: Reverse polarity protection on DIN-rail mounted PLC I/O module input. IC Role / Device Role / Timing Role: Blocks reverse-connected 24 V supply while passing forward current with low loss. Use Value: 90 A IFSM withstands repeated hot-plug surges common in factory floor maintenance. |
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; VF = 0.52 V @ 3 A, 25°C; no AEC-Q101 qualification | Not qualified for automotive; suitable for industrial/commercial power supplies only | Select if AEC-Q101 not required and cost sensitivity outweighs 70 mV VF penalty |
| SS34 (ON Semiconductor) | 40 V/3 A; VF = 0.55 V @ 3 A, 25°C; RθJA = 75 °C/W on FR-4; no guard ring | Limited surge robustness; lower thermal performance limits continuous current in compact layouts | Choose only for space-constrained non-automotive designs where 0.1 V higher VF is acceptable |
Compared with SB340-E3/52T and SS34, PDS340-13 delivers superior thermal resistance (6.0 °C/W vs. ≥75 °C/W), lower forward voltage, and automotive-grade reliability-making it optimal for thermally demanding or safety-critical deployments.
Availability
PDS340-13 is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC power input protection, and USB-C PD adapter designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for PDS340-13 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, specializing in high-efficiency power management and signal integrity solutions for automotive, industrial, and consumer markets.
The PDS340 belongs to Diodes' POWERDI® Schottky rectifier product line, engineered specifically for high-reliability, low-loss DC/DC conversion and reverse polarity protection in space-constrained, thermally aggressive environments.
FAQ
What is the maximum allowable junction temperature for PDS340-13?
The absolute maximum junction temperature is +150°C, with continuous operation limited by thermal design. At 3 A load on FR-4 (2 oz Cu), junction temperature rises ~180°C above ambient-so derating to ≤2.5 A at +100°C ambient is required per Figure 5. Thermal performance improves significantly on polyimide PCBs or with enhanced pad layouts.
Does PDS340-13 require a heatsink in typical applications?
No external heatsink is required. Its 6.0 °C/W junction-to-solder-point thermal resistance allows full 3 A operation at +25°C ambient using Diodes' recommended pad layout on FR-4. At elevated ambient temperatures, thermal derating applies-e.g., 2.0 A at +70°C ambient per Figure 5's derating curve.
How does the guard ring construction improve reliability?
The guard ring mitigates electric field crowding at the silicon periphery, suppressing premature edge avalanche during voltage transients like load dump or ESD. This extends operational lifetime in automotive environments where repetitive 40 V+ spikes occur, and is verified through AEC-Q101 transient overload testing.
Can PDS340-13 be used in place of a standard PN junction rectifier?
Yes, but only where low forward voltage and fast switching are beneficial. Unlike PN diodes, PDS340-13 has no reverse recovery time and lower VF, reducing switching losses-but its 40 V VR limit and higher IR at elevated temperature make it unsuitable for high-voltage or high-temperature rectification where PN devices excel.
PDS340-13 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -65°C ~ 150°C
PDS340-13 FAQ
1.How can I place an order for PDS340-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDS340-13 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 PDS340-13 reliable?
The price and inventory of PDS340-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDS340-13 is usually 5 days.
3.What payment methods are accepted for PDS340-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDS340-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDS340-13?
PDS340-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDS340-13 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 PDS340-13?
For technical support, including PDS340-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDS340-13 requirements.
6.How does Aetrix verify that PDS340-13 is sourced from the original manufacturer or authorized distributors?
All PDS340-13 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 PDS340-13 meets industry standards.
7.What is the process for return or replacement of PDS340-13?
All PDS340-13 units undergo pre-shipment inspection (PSI). If there is an issue with PDS340-13, 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 PDS340-13 part is unused and in its original packaging.
Return procedure for PDS340-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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