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Diodes Incorporated PDS540Q-13
- Part No.:
- PDS540Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
PDS540Q-13.pdf
- Description:
- DIODE SCHOTTKY 40V 5A POWERDI5
- Quantity:
- Payment:
- Shipping:
Inventory:4,218
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Product details
Overview
PDS540Q-13 from Diodes Incorporated is a 40 V, 5 A automotive-grade Schottky barrier rectifier in PowerDI5 package, with max forward voltage of 0.52 V at 5 A and 25°C, reverse leakage current ≤0.25 mA at 40 V/25°C, and qualified to AEC-Q101. It serves as polarity protection and freewheeling diode in 12 V automotive power rails.
For engineers reviewing the PDS540Q-13 datasheet, PDS540Q-13 pinout, PDS540Q-13 application, or PDS540Q-13 equivalent, key selection criteria include low VF for thermal efficiency in space-constrained engine control units, high IFSM (150 A) for load dump surge resilience, AEC-Q101 qualification for under-hood reliability, and PowerDI5 thermal resistance (RθJS = 4.0°C/W) for PCB-level thermal management.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced junction breakdown and supports continuous 5 A average forward current with derating above +75°C ambient. Its low 0.43–0.59 V forward voltage range across temperature and current conditions directly reduces conduction loss in DC-DC output stages.
The device exhibits 0.015–40 mA reverse leakage over –65°C to +150°C operating range and achieves 4.0°C/W junction-to-solder-point thermal resistance on FR-4 PCBs with recommended pad layout, enabling stable operation in high-temperature automotive environments without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse voltage before breakdown; defines safe blocking capability in 12 V automotive systems with load dump transients. |
| IF(AV) | 5 A - Continuous average forward current rating; supports high-current polarity protection in battery feed lines. |
| VF MAX | 0.52 V @ 5 A, 25°C - Low conduction loss enables >92% efficiency in 5 A freewheeling paths at room temperature. |
| IR MAX | 0.25 mA @ 40 V, 25°C - Tight leakage spec ensures minimal standby power drain in always-on vehicle modules. |
| IFSM | 150 A @ 8.3 ms - Withstands ISO 7637-2 Pulse 5a load dump surges without failure. |
| RθJS | 4.0 °C/W - Enables direct thermal coupling to PCB copper; critical for thermal design in compact ECU layouts. |
| TJ Range | –65°C to +150°C - Full automotive temperature coverage including under-hood hot zones and cold-cranking conditions. |
Pinout & Package
Package: PowerDI5 surface-mount package with exposed cathode thermal pad, molded green compound (UL 94V-0), matte tin–annealed copper leadframe, and 0.093 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to input side (e.g., battery+) in polarity protection; requires 2.7 mm × 1.6 mm minimum copper pad per datasheet Note 8. |
| Cathode | Forward current exit / reverse voltage reference terminal | Connected to system ground or load; large 9.4 mm × 7.2 mm thermal pad required for RθJS = 4.0°C/W performance. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Prevents edge breakdown during fast transient events (e.g., ISO 16750-2 pulses), improving long-term reliability in noisy automotive environments. |
| AEC-Q101 qualification | Validated for automotive use via stress testing including HTGB, HTRB, and temperature cycling-required for Tier 1 production release. |
| Lead-free, halogen- and antimony-free | Meets RoHS 2 and automotive "Green" standards (<900 ppm Br/Cl, <1000 ppm Sb); eliminates hazardous substance compliance risk in global vehicle programs. |
| PPAP-capable | Supports Production Part Approval Process documentation including control plans, PFMEAs, and dimensional reports for OEM supplier audits. |
Applications
| Engine Control Unit Polarity Protection | Body Control Module Freewheeling |
|---|---|
Use Scenario: Prevents reverse battery connection damage in 12 V ECU power inputs. IC Role / Device Role / Timing Role: Unidirectional current gate placed between battery feed and main regulator input. Use Value: 0.52 V VF minimizes voltage drop at 5 A, preserving ≥11.5 V supply headroom during cranking. | Use Scenario: Suppresses inductive kickback from door lock solenoids and window motor drivers. IC Role / Device Role / Timing Role: Freewheeling path for flyback energy dissipation during MOSFET turn-off. Use Value: 150 A IFSM handles repeated 100 A solenoid turn-off spikes without degradation. |
| ADAS Camera Power Rail | Start-Stop System Battery Interface |
Use Scenario: Provides reverse polarity and ESD-robust input protection for 5 MP camera modules. IC Role / Device Role / Timing Role: First-line protection diode upstream of LDOs and image sensors. Use Value: 0.25 mA IR at 25°C limits standby current to <1 µA per module in multi-camera systems. | Use Scenario: Isolates auxiliary battery from main starter battery during regenerative braking cycles. IC Role / Device Role / Timing Role: Bidirectional isolation switch replacement in dual-battery architectures. Use Value: –65°C to +150°C TJ range ensures uninterrupted function during extreme cold cranking and hot soak conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB540-E3/54 | Same 40 V/5 A rating but TO-220AC package; RθJA ≈ 50°C/W (vs. 4.0°C/W junction-to-pad); no AEC-Q101 qualification. | Requires heatsink for 5 A continuous; unsuitable for automotive PPAP or under-hood mounting. | Select only for industrial non-automotive designs where thermal budget allows discrete heatsinking. |
| SS54HE3/57T | Same PowerDI5 footprint but 40 V/5 A with VF = 0.55 V @ 5 A/25°C; AEC-Q101 qualified; IR = 0.3 mA @ 40 V/25°C. | Higher leakage increases standby drain; identical thermal and mechanical compatibility. | Acceptable drop-in replacement if 0.05 V higher VF and 0.05 mA higher IR are tolerable in system power budget. |
Compared with SB540-E3/54, PDS540Q-13 delivers superior thermal performance and automotive qualification; versus SS54HE3/57T, it offers lower VF and IR at the cost of tighter manufacturing tolerance control.
Availability
PDS540Q-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera power supplies, and start-stop system battery interfaces requiring stable component supply across automotive production lifecycles.
Supply support for PDS540Q-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 delivers high-reliability, thermally optimized Schottky and standard diodes for automotive, industrial, and computing power systems, emphasizing AEC-Q101 compliance and board-level thermal efficiency.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The PDS540Q-13 has a rated operating junction temperature range of –65°C to +150°C. For continuous 5 A operation, thermal design must ensure TJ remains ≤+150°C using the specified RθJS = 4.0°C/W and appropriate PCB copper area. Derating begins at +75°C ambient per Figure 6.
Is the PowerDI5 package compatible with standard reflow profiles?
Yes-the PowerDI5 package is qualified for lead-free reflow per JEDEC J-STD-020, with moisture sensitivity level 1. Recommended peak reflow temperature is 260°C for ≤30 seconds, and preheat ramp rate should not exceed 3°C/s to avoid delamination.
Does PDS540Q-13 support bidirectional current flow?
No-it is a unidirectional Schottky rectifier. Current flows only from anode to cathode under forward bias; reverse bias blocks up to 40 V. It cannot replace a MOSFET-based ideal diode or active OR-ing controller for reverse-current prevention.
How does the guard ring structure improve transient robustness?
The guard ring surrounds the active junction to equalize electric field distribution at the silicon edge, preventing premature avalanche breakdown during fast-rising transients like ISO 7637-2 Pulse 1 or Pulse 5a. This extends device lifetime in electrically noisy automotive subsystems.
PDS540Q-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):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 520 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 250 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -65°C ~ 150°C
PDS540Q-13 FAQ
1.How can I place an order for PDS540Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDS540Q-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 PDS540Q-13 reliable?
The price and inventory of PDS540Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDS540Q-13 is usually 5 days.
3.What payment methods are accepted for PDS540Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDS540Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDS540Q-13?
PDS540Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDS540Q-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 PDS540Q-13?
For technical support, including PDS540Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDS540Q-13 requirements.
6.How does Aetrix verify that PDS540Q-13 is sourced from the original manufacturer or authorized distributors?
All PDS540Q-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 PDS540Q-13 meets industry standards.
7.What is the process for return or replacement of PDS540Q-13?
All PDS540Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with PDS540Q-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 PDS540Q-13 part is unused and in its original packaging.
Return procedure for PDS540Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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