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Nexperia USA Inc. PMEG45T10EXD-QX
- Part No.:
- PMEG45T10EXD-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
PMEG45T10EXD-QX.pdf
- Description:
- DIODE SCHOTTKY 45V 1A SOD323HP
- Quantity:
- Payment:
- Shipping:
Inventory:6,249
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Product details
Overview
PMEG45T10EXD-QX from Nexperia is a 45 V, 1 A Trench MEGA Schottky barrier rectifier in CFP2-HP (SOD323HP) package, designed for high-efficiency freewheeling and reverse polarity protection in automotive DC/DC converters. It delivers VF = 450–520 mV at IF = 1 A (25 °C), IR ≤ 20 µA at VR = 45 V (25 °C), and Qrr = 2 nC - enabling low-loss switching in space-constrained power rails.
For engineers reviewing the PMEG45T10EXD-QX datasheet, PMEG45T10EXD-QX pinout, PMEG45T10EXD-QX application, or PMEG45T10EXD-QX equivalent, key selection criteria include its AEC-Q101 qualification, clip-bonded thermal performance (Rth(j-sp) = 125 K/W on 1 cm² cathode pad), low trr (4.5 ns step recovery), and SOD323HP footprint compatibility with high-density automotive PCB layouts.
Technical Context
This Schottky rectifier uses trench-based MEGA architecture to minimize forward voltage while suppressing reverse leakage across -40 °C to 150 °C junction temperatures. Its clip-bonding technology directly connects the die to the exposed cathode heatsink, reducing thermal resistance to 6 K/W at the solder point.
The device operates as a unidirectional power switch with anode-to-cathode conduction path, optimized for high-frequency switching (≤20 kHz square wave) and low-duty-cycle pulse operation. Its 130 pF capacitance at VR = 4 V / 1 MHz supports fast transient response in OR-ing and freewheeling topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 45 V - Maximum blocking voltage before breakdown; enables use in 36 V automotive systems with margin. |
| IF(AV) (Avg Forward Current) | 1 A - Sustained DC current capability at Tsp ≤ 172 °C with 50% duty cycle; supports continuous power rail operation. |
| VF (Forward Voltage) | 450–520 mV @ IF = 1 A, 25 °C - Low conduction loss reduces heat generation and improves system efficiency. |
| IR (Reverse Current) | 3–20 µA @ VR = 45 V, 25 °C - Ultra-low leakage preserves battery life in always-on automotive modules. |
| Qrr (Reverse Recovery Charge) | 2 nC - Near-zero stored charge eliminates switching tail current, minimizing EMI and diode losses. |
| trr (Reverse Recovery Time) | 4.5 ns - Step-recovery speed enables clean turn-off in high-frequency synchronous rectification. |
| Rth(j-sp) (Junction-to-Solder Point) | 125 K/W - Thermal path optimized for cathode-side copper pour; enables 1.2 W dissipation with 1 cm² pad. |
Pinout & Package
Encapsulated in CFP2-HP (SOD323HP): 2.2 mm × 1.3 mm × 0.68 mm surface-mount plastic package with exposed cathode heatsink and solderable lead ends.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Main power return path and thermal interface; exposed metal tab requires direct connection to PCB copper pour for thermal management. |
| 2 | Anode (A) | Input power terminal; carries forward current into load or inductive flyback energy during freewheeling. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VF = 450 mV typ. @ 1 A ensures <0.45 W conduction loss at full rated current, reducing thermal stress. |
| Low Qrr and low IRM | Qrr = 2 nC and IRM = 0.36 A minimize switching energy loss and voltage overshoot during turn-off. |
| Clip-bonded thermal construction | Direct die-to-cathode metal bonding achieves Rth(j-sp) = 125 K/W, enabling higher power density than wire-bonded equivalents. |
| AEC-Q101 qualified | Stress-tested for automotive reliability including temperature cycling, HTRB, and ESD - suitable for under-hood ECUs and ADAS modules. |
| Exposed heatsink package | SOD323HP's bottom-exposed cathode allows >80% of thermal power to dissipate through PCB, not ambient air. |
Applications
| High-Efficiency DC/DC Conversion | Switch Mode Power Supply |
|---|---|
|
Use Scenario: Secondary-side rectification in 12 V → 5 V/3.3 V buck converters for infotainment head units. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side MOSFET off-time. Use Value: 450 mV VF reduces conduction loss by ~35% vs. standard Schottkys, improving converter efficiency from 89% to 92.5% at 1 A. |
Use Scenario: Output rectification in isolated flyback supplies powering ADAS camera modules. IC Role / Device Role / Timing Role: Unidirectional output clamp preventing reverse current flow during transformer reset. Use Value: 4.5 ns trr eliminates reverse recovery spikes, reducing EMI filter size and enabling smaller Y-capacitors. |
| Reverse Polarity Protection | OR-ing Circuit |
|
Use Scenario: Input protection for telematics control units connected to vehicle battery with accidental reverse connection risk. IC Role / Device Role / Timing Role: Series-blocking diode placed between battery input and main regulator input. Use Value: 20 µA max IR at 45 V prevents >1 µA standby drain, preserving battery charge over 3-month parking cycles. |
Use Scenario: Redundant power path selection in domain controller with dual 12 V inputs (main + backup). IC Role / Device Role / Timing Role: Back-to-back configured Schottky enabling automatic source switchover without control logic. Use Value: 2 nC Qrr ensures <10 ns dead-time between sources, eliminating output voltage dip during switchover. |
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-1EQH04HM3/H | 45 V, 1 A; VF = 490 mV min; Qrr = 3.5 nC; TO-277 package (larger, no exposed heatsink) | Higher thermal resistance (Rth(j-a) ≈ 180 K/W) limits power handling in compact layouts | Preferred where board-level rework is required; less optimal for high-density automotive modules |
| ON Semiconductor NSR1050HT1G | 50 V, 1 A; VF = 470 mV typ; Qrr = 4.2 nC; SOD-123FL package (no clip bond) | Higher IR (50 µA @ 45 V) increases standby leakage; lacks AEC-Q101 certification | Acceptable for non-automotive industrial SMPS; not recommended for battery-sensitive automotive modules |
Compared with VS-1EQH04HM3/H and NSR1050HT1G, PMEG45T10EXD-QX offers superior thermal performance via clip bonding, lower leakage for extended battery life, and AEC-Q101 validation - making it the preferred choice for space- and reliability-critical automotive power rails.
Availability
PMEG45T10EXD-QX is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera power supplies, and telematics control units requiring stable component supply with AEC-Q101 compliance and long-term lifecycle support.
Supply support for PMEG45T10EXD-QX 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
PMEG45T10EXD-QX belongs to Nexperia's Trench MEGA Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability automotive power conversion where low VF, low Qrr, and AEC-Q101 qualification are mandatory.
FAQ
Is PMEG45T10EXD-QX suitable for 48 V mild-hybrid automotive systems?
No - its 45 V VR rating provides insufficient margin for 48 V nominal systems, which experience transients up to 58 V. It is validated for 12 V and 24 V architectures only, with derated VR = 35 V at Tj = 150 °C per Figure 12. For 48 V applications, consider Nexperia's PMEG60T10EPD-Q (60 V rating).
What is the maximum allowable solder point temperature during reflow?
The absolute maximum solder point temperature is defined by the limiting value Tsp ≤ 172 °C for IF(AV) = 1 A operation. Reflow profiles must ensure peak temperature at the cathode tab does not exceed 260 °C for ≤10 seconds, per JEDEC J-STD-020. The recommended stencil thickness is 0.1 mm for controlled paste volume.
Does PMEG45T10EXD-QX require a heatsink pad on the PCB?
Yes - the exposed cathode tab must be connected to ≥1 cm² of 1 oz copper on the PCB to achieve rated 1.2 W power dissipation and maintain Tj ≤ 175 °C. Without this pad, Rth(j-a) rises to 230 K/W, limiting usable current to ~0.5 A at Tamb = 25 °C.
How does the CFP2-HP package compare to standard SOD-323 in thermal performance?
CFP2-HP improves thermal resistance by 45% versus standard SOD-323: Rth(j-sp) = 125 K/W (with 1 cm² pad) vs. ~230 K/W for SOD-323. This is achieved via clip bonding and larger cathode metal area, enabling 1.2 W dissipation versus ~0.65 W for legacy packages at same ambient conditions.
PMEG45T10EXD-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 2-SMD, Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 520 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 8 ns
- Current - Reverse Leakage @ Vr:
- 20 µA @ 45 V
- Capacitance @ Vr, F:
- 130pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD323HP
- Operating Temperature - Junction:
- 175°C
PMEG45T10EXD-QX FAQ
1.How can I place an order for PMEG45T10EXD-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG45T10EXD-QX 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 PMEG45T10EXD-QX reliable?
The price and inventory of PMEG45T10EXD-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG45T10EXD-QX is usually 5 days.
3.What payment methods are accepted for PMEG45T10EXD-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG45T10EXD-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG45T10EXD-QX?
PMEG45T10EXD-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG45T10EXD-QX 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 PMEG45T10EXD-QX?
For technical support, including PMEG45T10EXD-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG45T10EXD-QX requirements.
6.How does Aetrix verify that PMEG45T10EXD-QX is sourced from the original manufacturer or authorized distributors?
All PMEG45T10EXD-QX 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 PMEG45T10EXD-QX meets industry standards.
7.What is the process for return or replacement of PMEG45T10EXD-QX?
All PMEG45T10EXD-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG45T10EXD-QX, 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 PMEG45T10EXD-QX part is unused and in its original packaging.
Return procedure for PMEG45T10EXD-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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