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Diodes Incorporated PDS1045Q-13
- Part No.:
- PDS1045Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
PDS1045Q-13.pdf
- Description:
- SCHOTTKY RECTIFIER PDI5 T&R 5K
- Quantity:
- Payment:
- Shipping:
Inventory:2,924
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Product details
Overview
PDS1045Q-13 from Diodes Incorporated is a 10A, 45V Schottky barrier rectifier in PowerDI5 package, featuring 0.51V max forward voltage at 10A/25°C, 0.6mA max reverse leakage at 45V/125°C, and AEC-Q101 qualification for automotive power conversion circuits including DC-DC output rectification and freewheeling in engine control units.
For engineers reviewing the PDS1045Q-13 datasheet, PDS1045Q-13 pinout, PDS1045Q-13 application, or PDS1045Q-13 equivalent, key selection criteria include low VF for efficiency-critical 12V/24V automotive systems, high IFSM (275A) for load dump surge resilience, thermal resistance (RθJA = 18°C/W on 2"×2" Al board), and RoHS/Green compliance for Tier-1 supply chain requirements.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced avalanche breakdown and sustain reliable operation under repetitive surge conditions. Its low barrier height enables sub-0.45V forward drop at 5A/25°C while maintaining 45V blocking capability.
The device operates across -55°C to +150°C junction temperature range and exhibits 0.3mA IR at 35V/100°C - critical for maintaining low standby loss in always-on vehicle modules. Thermal performance is optimized for direct-mount on aluminum PCBs with RθJA = 18°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for system bus voltage tolerance. |
| IO | 10 A - Continuous average forward current at TA = +25°C on 2"×2" Al board; defines steady-state power delivery capacity. |
| VF Max | 0.51 V @ 10A/25°C - Directly determines conduction loss (Pcond ≈ IO × VF); enables >92% efficiency in 12V buck converters. |
| IFSM | 275 A @ 8.3ms - Single half-sine surge rating; supports load dump immunity per ISO 7637-2 Pulse 5a in automotive ECUs. |
| IR Max | 0.6 mA @ 45V/125°C - Reverse leakage at worst-case condition; ensures minimal quiescent drain in battery-connected circuits. |
| RθJA | 18 °C/W (on 2"×2" Al board) - Enables 5.5W power dissipation at ΔT = 100°C; allows compact heatsinkless layout in space-constrained modules. |
Pinout & Package
Package: PowerDI5 - surface-mount, 3-terminal molded plastic package with matte tin-plated copper leadframe; UL 94V-0 rated, moisture sensitivity level 3, weight 0.096g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry point | Connected to switching node (e.g., MOSFET drain) in synchronous rectifier or freewheeling path. |
| Cathode (K) | Forward current exit point | Connected to output rail or ground return; polarity-marked on top surface as "S1045". |
| Case / Exposed Pad | Thermal and electrical common | Internally tied to cathode; must be soldered to thermal pad for RθJA = 18°C/W performance. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge avalanche during voltage transients, enabling robust operation in noisy automotive environments without external snubbers. |
| Very low forward voltage drop | 0.45V typ @ 10A/25°C reduces conduction loss by ≥35% vs. standard silicon rectifiers, directly improving system efficiency. |
| AEC-Q101 qualified | Validated for automotive use with PPAP capability and IATF16949 manufacturing - required for power stages in ADAS, body control, and infotainment modules. |
| Halogen & antimony free | Meets <900ppm Br, <900ppm Cl, <1000ppm Sb limits - satisfies EU ELV Directive and OEM green material specifications. |
Applications
| Automotive DC-DC Converters | Engine Control Unit (ECU) Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in 12V-to-5V/3.3V buck converters powering microcontrollers and sensors. IC Role / Device Role / Timing Role: Schottky rectifier replacing synchronous MOSFETs where gate drive complexity is prohibitive. Use Value: 0.51V VF max minimizes power loss at 10A output, enabling >93% peak efficiency without active cooling. | Use Scenario: Flyback diode across inductive loads (fuel injectors, solenoids) in ECU power stages. IC Role / Device Role / Timing Role: Freewheeling path for stored magnetic energy during MOSFET turn-off. Use Value: 275A IFSM withstands repetitive inductive kickback surges without degradation over 15-year vehicle life. |
| On-Board Charger (OBC) Auxiliary Supplies | Battery Management System (BMS) Polarity Protection |
Use Scenario: Output rectification in auxiliary 400V-to-12V isolated supplies for OBC control logic. IC Role / Device Role / Timing Role: High-frequency rectifier operating at 100–300kHz switching frequencies. Use Value: Low junction capacitance (<12pF @ 0V) minimizes switching loss and EMI generation in high-frequency designs. | Use Scenario: Reverse-polarity protection at BMS main input terminals handling 12V/24V battery connections. IC Role / Device Role / Timing Role: Series-connected anode-in configuration blocking reverse current flow. Use Value: 0.6mA IR max at 125°C ensures <10µA leakage in hot under-hood environments, preserving battery standby life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-10BQ040-M3/45 | 40V VRRM, 0.49V VF max @ 10A/25°C, TO-277 package | Lacks AEC-Q101 qualification; not approved for automotive safety-critical systems | Select only for industrial/non-automotive use where 5V lower blocking margin is acceptable. |
| ON Semiconductor MBR1045CT | 45V VRRM, dual common-cathode configuration, TO-220AC package | Through-hole mounting; higher RθJA (50°C/W); no automotive qualification | Use only in legacy through-hole designs requiring dual-diode topology; not suitable for new SMT automotive platforms. |
Compared with VS-10BQ040-M3/45 and MBR1045CT, PDS1045Q-13 uniquely combines AEC-Q101 qualification, PowerDI5 SMT footprint, and 45V/10A rating - making it the only drop-in solution for next-generation automotive power modules requiring PPAP traceability and thermal performance on aluminum PCBs.
Availability
PDS1045Q-13 is available at Aetrix Electronics and suitable for automotive power conversion, engine control unit (ECU) freewheeling, and battery management system (BMS) polarity protection requiring stable component supply and long-term lifecycle assurance.
Supply support for PDS1045Q-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-reliability power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
The PowerDI® rectifier product line delivers high-current Schottky and fast recovery diodes in thermally enhanced surface-mount packages - engineered specifically for automotive power conversion, ECU protection, and EV charging auxiliary supplies.
FAQ
What is the maximum junction temperature rating for PDS1045Q-13?
The PDS1045Q-13 has an operating junction temperature range of -55°C to +150°C, verified per AEC-Q101 stress testing. This rating enables deployment in under-hood automotive locations such as engine compartments and transmission control modules where ambient temperatures exceed 105°C.
Is PDS1045Q-13 compatible with lead-free reflow soldering processes?
Yes - PDS1045Q-13 features matte tin annealed terminals compliant with J-STD-020 moisture sensitivity level 3 and qualified for peak reflow temperatures up to 260°C. The PowerDI5 package withstands standard Pb-free SAC305 profiles without delamination or solder joint failure.
Does PDS1045Q-13 require a heatsink in typical automotive applications?
No external heatsink is required when mounted on a 2"×2" aluminum PCB, where its RθJA = 18°C/W enables full 10A operation at TA ≤ 75°C. On FR-4 boards (RθJA = 85°C/W), derating to 2.5A is necessary - confirming thermal design must match the intended PCB substrate.
How does the guard ring construction improve reliability in automotive systems?
The guard ring die structure prevents premature edge breakdown during voltage transients like ISO 7637-2 Pulse 1 (inductive load dump) and Pulse 5a (alternator load dump). This eliminates need for external TVS clamping in many ECU power stages, reducing BOM count and board area.
PDS1045Q-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):
- 45 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 510 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 600 µA @ 45 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
PDS1045Q-13 FAQ
1.How can I place an order for PDS1045Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDS1045Q-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 PDS1045Q-13 reliable?
The price and inventory of PDS1045Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDS1045Q-13 is usually 5 days.
3.What payment methods are accepted for PDS1045Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDS1045Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDS1045Q-13?
PDS1045Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDS1045Q-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 PDS1045Q-13?
For technical support, including PDS1045Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDS1045Q-13 requirements.
6.How does Aetrix verify that PDS1045Q-13 is sourced from the original manufacturer or authorized distributors?
All PDS1045Q-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 PDS1045Q-13 meets industry standards.
7.What is the process for return or replacement of PDS1045Q-13?
All PDS1045Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with PDS1045Q-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 PDS1045Q-13 part is unused and in its original packaging.
Return procedure for PDS1045Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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