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Nexperia USA Inc. PMEG4020CER-QX
- Part No.:
- PMEG4020CER-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
PMEG4020CER-QX.pdf
- Description:
- 40 V, 2 A SCHOTTKY RECTIFIER IN
- Quantity:
- Payment:
- Shipping:
Inventory:292
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Product details
Overview
PMEG4020CER-QX from Nexperia is a 40 V, 2 A planar Schottky barrier rectifier in CFP3 (SOD123W) surface-mount package, designed for low-voltage rectification and reverse polarity protection in automotive power rails. It delivers VF = 500–570 mV at IF = 2 A and Tj = 25 °C, supports 175 °C junction temperature, and is qualified to AEC-Q101.
For engineers reviewing the PMEG4020CER-QX datasheet, PMEG4020CER-QX pinout, PMEG4020CER-QX application, or PMEG4020CER-QX equivalent, key selection criteria include forward voltage at 2 A, reverse leakage at 125 °C, thermal resistance to solder point (130 K/W), and AEC-Q101 qualification status for automotive deployment.
Technical Context
This Schottky rectifier uses a planar die structure with clip-bond interconnection to minimize parasitic inductance and enhance thermal conduction from junction to cathode tab. Its low VF and fast recovery (trr ≤ 5.5 ns) stem from optimized metal-semiconductor interface and shallow junction depth.
The device operates within a 175 °C maximum junction temperature limit and exhibits thermally stable reverse current-6–25 mA at VR = 40 V and Tj = 125 °C-enabling reliable use in under-hood DC/DC converters where ambient temperatures exceed 105 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 40 V - Maximum blocking voltage before breakdown; sets upper limit for input rail protection in 24 V automotive systems. |
| IF(AV) (Avg. Forward Current) | 2 A - Sustained DC current capability at Tsp ≤ 166 °C on standard FR4 PCB; sufficient for auxiliary 5 V/3.3 V SMPS outputs. |
| VF @ 2 A, 25 °C | 500–570 mV - Low conduction loss enabling >95% efficiency in high-frequency buck converters. |
| IR @ 40 V, 125 °C | 6–25 mA - Controlled leakage ensures minimal standby power loss in always-on vehicle modules. |
| Rth(j-sp) | 130 K/W - Thermal resistance from junction to solder point on 1 cm² cathode pad; enables direct thermal coupling to PCB ground plane. |
| trr (Ramp Recovery) | 5.5 ns - Fast switching minimizes reverse recovery loss in 500 kHz–1 MHz SMPS designs. |
| Qrr | 2.1 nC - Low stored charge reduces EMI and gate driver stress in synchronous rectifier configurations. |
Pinout & Package
Encapsulated in CFP3 (SOD123W) plastic SMD package: 2.6 mm × 1.7 mm × 1.0 mm body, flat leads, single-sided copper mounting footprint. Cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Main current exit path; large-area tab provides primary thermal conduction path to PCB copper pour. |
| 2 | Anode (A) | Current entry terminal; smaller pad area reflects lower thermal duty versus cathode. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 500–570 mV at 2 A ensures <1.14 W conduction loss, critical for thermally constrained automotive ECUs. |
| Clip-bond construction | Eliminates wire bonds to reduce parasitic inductance (<0.5 nH) and improve current sharing in parallel configurations. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTGB, HTRB, and temperature cycling per JESD22-A108. |
| Small flat SMD package | SOD123W footprint allows high-density layout in space-constrained ADAS camera modules and infotainment power supplies. |
Applications
| Automotive Body Control Module (BCM) | Infotainment Power Supply |
|---|---|
Use Scenario: Reverse polarity protection on 12 V battery input rail of BCM subassembly. IC Role / Device Role / Timing Role: Unidirectional current valve preventing damage during jump-start misconnection. Use Value: 40 V VR rating withstands load-dump transients up to 35 V; 2 A IF(AV) supports peak module current draw without derating. | Use Scenario: Output rectification in 5 V/3 A buck converter powering display logic and audio amplifiers. IC Role / Device Role / Timing Role: High-frequency synchronous rectifier replacement with zero recovery delay. Use Value: 5.5 ns trr and 2.1 nC Qrr reduce switching losses by ~30% vs. standard PN diodes at 1 MHz operation. |
| ADAS Camera Module | Electric Power Steering (EPS) MCU Supply |
Use Scenario: Low-loss 3.3 V post-regulation from intermediate 5 V rail in compact camera housing. IC Role / Device Role / Timing Role: Secondary-side Schottky rectifier in isolated flyback or buck-boost topology. Use Value: 500 mV VF at 1 A keeps self-heating below 0.5 °C/W on 1 cm² pad-critical for sealed thermal environment. | Use Scenario: Input rectification for 3.3 V LDO feeding EPS microcontroller and CAN transceiver. IC Role / Device Role / Timing Role: Primary DC input protection and filtering element upstream of switching regulator. Use Value: AEC-Q101 qualification ensures compliance with ISO 26262 ASIL-B functional safety requirements for power domain integrity. |
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-2EY20-M3/57T | Same 40 V/2 A rating but TO-277 package (larger footprint, higher Rth(j-a) = 175 K/W). | Lacks AEC-Q101 qualification; suitable only for industrial non-automotive use. | Select when board space permits larger package and automotive qualification is not required. |
| ON Semiconductor NSR20F40NXT5G | Lower VF (420 mV typ. @ 2 A) but higher IR (100 µA @ 25 °C); same SOD123W package. | Not AEC-Q101 qualified; reverse leakage limits use in high-temp always-on circuits. | Prefer for ultra-low VF priority in commercial-grade 24 V systems where leakage is less critical. |
Compared with VS-2EY20-M3/57T and NSR20F40NXT5G, PMEG4020CER-QX uniquely combines AEC-Q101 qualification, 130 K/W Rth(j-sp), and controlled 6–25 mA IR at 125 °C-making it the only choice for thermally demanding, safety-compliant automotive power rails.
Availability
PMEG4020CER-QX is available at Aetrix Electronics and suitable for automotive body control modules, infotainment power supplies, and ADAS camera modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PMEG4020CER-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 system functionality-efficiency, reliability, and miniaturization-with leadership in discrete, logic, and MOSFET technologies.
This device belongs to Nexperia's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for robust, low-loss power conversion in automotive electronic control units and safety-critical subsystems.
FAQ
Is PMEG4020CER-QX suitable for synchronous rectification?
No-it is a passive Schottky rectifier, not a MOSFET-based synchronous rectifier IC. However, its 5.5 ns trr and low Qrr make it an effective replacement for standard diodes in quasi-synchronous or freewheeling paths where gate drive complexity must be avoided.
What is the maximum allowable solder point temperature during reflow?
The absolute maximum solder point temperature is not specified, but the device is rated for Tsp ≤ 166 °C under continuous 2 A operation. Reflow profiles must comply with JEDEC J-STD-020, with peak temperature ≤ 260 °C for ≤ 30 seconds and no more than two reflows.
Does the marking 'N7' correspond to PMEG4020CER-QX?
Yes-per Nexperia's marking table, 'N7' is the unique top-side laser marking code for PMEG4020CER-QX in CFP3 (SOD123W) package, with the bar indicating the cathode terminal.
Can PMEG4020CER-QX replace a 30 V Schottky in a 24 V system?
Yes-its 40 V VR rating provides 67% headroom above nominal 24 V, accommodating ISO 7637-2 pulse 5a load dump transients (up to 35 V). Derating is unnecessary unless operating near 125 °C ambient with high ripple current.
PMEG4020CER-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123W
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 570 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 5.5 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 40 V
- Capacitance @ Vr, F:
- 113pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- 175°C
PMEG4020CER-QX FAQ
1.How can I place an order for PMEG4020CER-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4020CER-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 PMEG4020CER-QX reliable?
The price and inventory of PMEG4020CER-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4020CER-QX is usually 5 days.
3.What payment methods are accepted for PMEG4020CER-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4020CER-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4020CER-QX?
PMEG4020CER-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4020CER-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 PMEG4020CER-QX?
For technical support, including PMEG4020CER-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4020CER-QX requirements.
6.How does Aetrix verify that PMEG4020CER-QX is sourced from the original manufacturer or authorized distributors?
All PMEG4020CER-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 PMEG4020CER-QX meets industry standards.
7.What is the process for return or replacement of PMEG4020CER-QX?
All PMEG4020CER-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4020CER-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 PMEG4020CER-QX part is unused and in its original packaging.
Return procedure for PMEG4020CER-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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