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Nexperia USA Inc. PMEG4010ET-QR
- Part No.:
- PMEG4010ET-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PMEG4010ET-QR.pdf
- Description:
- PMEG4010ET-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,583
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Product details
Overview
PMEG4010ET-QR from Nexperia is a 1 A, 40 V automotive-qualified Schottky barrier rectifier in SOT23 package, featuring very low forward voltage (540–640 mV at 1 A), low reverse leakage (≤100 µA at 40 V), and integrated guard ring for stress protection. It serves as a low-loss unidirectional power switch in DC/DC converters, reverse polarity protection circuits, and low-voltage rectification stages in automotive body control modules and infotainment power supplies.
For engineers reviewing the PMEG4010ET-QR datasheet, PMEG4010ET-QR pinout, PMEG4010ET-QR application, or PMEG4010ET-QR equivalent, key selection criteria include its AEC-Q101 qualification, 540 mV typical VF at 1 A, 43–50 pF junction capacitance, thermal resistance of 300 K/W (junction-to-solder point), and SOT23 footprint compatibility with high-density PCB layouts.
Technical Context
This MEGA Schottky rectifier uses planar silicon technology with an integrated guard ring to enhance ruggedness against voltage transients and ESD stress-critical for automotive 12 V battery-fed systems. Its low VF enables >95% efficiency in 3.3 V/5 V buck converter outputs where conduction loss dominates.
The device operates with junction temperatures up to 150 °C and supports repetitive peak forward current up to 5 A (tp ≤ 1 ms) and non-repetitive surge up to 9 A (tp = 8 ms), making it suitable for load dump and cold-crank transient conditions in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Voltage (VF) | 540–640 mV at 1 A - reduces conduction loss in 5 V/3.3 V rail rectification by ~30% vs. standard Schottkys. |
| Reverse Voltage (VR) | 40 V - supports 12 V automotive systems with margin for load dump (ISO 7637-2 Pulse 5a: +75 V). |
| Reverse Leakage (IR) | 30–100 µA at 40 V, 25 °C - ensures minimal standby power loss in always-on vehicle modules. |
| Junction Capacitance (Cd) | 43–50 pF at 1 V, 1 MHz - enables fast switching in <1 MHz DC/DC controllers without excessive ringing. |
| Thermal Resistance (Rth(j-sp)) | 120 K/W - allows 420 mW dissipation with <50 °C rise above solder point on 1 cm² cathode pad. |
| Peak Forward Surge (IFSM) | 9 A (8 ms square wave) - withstands automotive cold-crank surges without degradation. |
| AEC-Q101 Qualified | Stress-tested per automotive discrete semiconductor standard - validated for under-hood temperature cycling and humidity exposure. |
Pinout & Package
Encapsulated in SOT23 (TO-236AB) package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, surface-mount compatible with reflow and wave soldering per IPC-7095.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Input terminal for forward current flow; connects to higher-potential side (e.g., input rail or battery+). |
| 2 | Not Connected (n.c.) | Internally isolated; must remain unconnected on PCB to avoid parasitic coupling or thermal path disruption. |
| 3 | Cathode (K) | Output terminal; ties to load ground or regulated output node; primary thermal path to PCB copper. |
Key Features
| Feature | Design Value |
|---|---|
| Guard Ring Integration | Enhances voltage stability and ESD robustness (HBM ≥2 kV) without increasing VF - critical for automotive module reliability. |
| Low Thermal Resistance | Rth(j-sp) = 120 K/W enables 420 mW power handling with minimal board area - ideal for space-constrained ECU designs. |
| Automotive Qualification | AEC-Q101 qualified across temperature range −65 °C to +150 °C - eliminates need for additional qualification testing in Tier-1 BOMs. |
| Small-Signal Switching Speed | Capacitance <50 pF and zero recovery time enable clean turn-off in 500 kHz–1 MHz synchronous rectifier replacements. |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Delivery Input Protection |
|---|---|
Use Scenario: Reverse polarity protection on 12 V supply input to BCM microcontroller and CAN transceiver rails. IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage during battery jump-start misconnection. Use Value: 540 mV VF limits voltage drop to <0.6 V at 1 A, preserving >95% input voltage for downstream LDOs and MCU logic. |
Use Scenario: Input OR-ing diode in dual-source USB-C PD adapter to prevent backfeed between primary and backup supplies. IC Role / Device Role / Timing Role: Low-loss power path selector enabling seamless source handover without voltage glitch. Use Value: 43 pF capacitance minimizes high-frequency noise injection into PD controller analog sensing inputs. |
| Infotainment System DC/DC Converter Output | Telematics GPS/GLONASS LNA Power Rail |
Use Scenario: Secondary-side rectification in 5 V buck converter powering display backlight drivers and audio codecs. IC Role / Device Role / Timing Role: High-efficiency synchronous rectifier replacement in continuous conduction mode (CCM) operation. Use Value: 100 µA max IR at 40 V ensures <0.5 mW standby loss - extends battery runtime in parked vehicle monitoring mode. |
Use Scenario: Bias feed isolation for GPS front-end low-noise amplifier to suppress RF coupling from adjacent cellular bands. IC Role / Device Role / Timing Role: DC blocking and RF decoupling element leveraging low junction capacitance and high VR rating. Use Value: 40 V VR rating accommodates transient spikes from antenna switching circuits while maintaining <50 pF RF shunt path. |
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-1EQH04-M3/5BT | 45 V VR, 1 A IF, VF = 550 mV typ. at 1 A; no AEC-Q101 qualification; SOD-123FL package. | Non-automotive industrial power supplies only; lacks guard ring and thermal performance validation for under-hood use. | Select when cost sensitivity outweighs automotive qualification and thermal margin requirements. |
| ON Semiconductor NSR1040HT1G | 40 V VR, 1 A IF, VF = 520 mV typ. at 1 A; AEC-Q101 qualified; SOD-123 package; Rth(j-a) = 350 K/W. | Same voltage/current specs but larger footprint and higher thermal resistance - requires larger copper area for same power handling. | Prefer when existing SOD-123 layout reuse is prioritized over board space and thermal optimization. |
Compared with VS-1EQH04-M3/5BT and NSR1040HT1G, PMEG4010ET-QR delivers superior thermal performance (120 K/W j-sp), smaller SOT23 footprint, and verified guard ring protection-making it optimal for high-reliability, space-constrained automotive power nodes where conduction loss and transient immunity are co-critical.
Availability
PMEG4010ET-QR is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power delivery input protection, infotainment DC/DC converters, and telematics LNA bias feeds requiring stable component supply and AEC-Q101 compliance.
Supply support for PMEG4010ET-QR 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 high-volume, high-reliability essential semiconductors - delivering discrete, logic, and MOSFET solutions optimized for automotive, industrial, and mobile applications.
PMEG4010ET-QR belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for low-VF, high-ruggedness automotive power management where efficiency, thermal density, and stress resilience are jointly mandated.
FAQ
Is PMEG4010ET-QR suitable for synchronous rectification replacement in 1 MHz DC/DC converters?
Yes. With 43–50 pF junction capacitance and zero reverse recovery time, PMEG4010ET-QR supports clean switching at 1 MHz without shoot-through risk or excessive EMI. Its 540 mV VF at 1 A maintains high efficiency even at light loads, and the SOT23 footprint aligns with common synchronous rectifier layouts.
What is the maximum continuous forward current at 105 °C ambient temperature?
At Tamb = 105 °C, derating applies: the absolute maximum IF remains 1 A per datasheet limiting values, but thermal design must ensure Tj ≤ 150 °C. With Rth(j-a) = 300 K/W, maximum continuous power dissipation is ~150 mW - corresponding to ~0.28 A at 540 mV VF. Board-level copper area directly impacts usable current.
Does the n.c. pin (Pin 2) require PCB trace removal or keep-out zone?
No. Pin 2 is internally not connected and electrically isolated. Standard SOT23 footprint adherence is sufficient; no trace removal or keep-out is needed. However, avoid routing sensitive analog signals beneath this pin to prevent capacitive coupling from adjacent traces.
How does the guard ring improve reliability in automotive environments?
The integrated guard ring mitigates edge breakdown under high dv/dt transients (e.g., load dump, alternator ripple) by redistributing electric field stress away from the active junction periphery. This increases effective VR margin and improves long-term reliability in temperature-cycled, vibration-prone under-hood locations - validated per AEC-Q101 HTRB and TC testing.
PMEG4010ET-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 640 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Capacitance @ Vr, F:
- 43pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
- Operating Temperature - Junction:
- 150°C
PMEG4010ET-QR FAQ
1.How can I place an order for PMEG4010ET-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4010ET-QR 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 PMEG4010ET-QR reliable?
The price and inventory of PMEG4010ET-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4010ET-QR is usually 5 days.
3.What payment methods are accepted for PMEG4010ET-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4010ET-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4010ET-QR?
PMEG4010ET-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4010ET-QR 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 PMEG4010ET-QR?
For technical support, including PMEG4010ET-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4010ET-QR requirements.
6.How does Aetrix verify that PMEG4010ET-QR is sourced from the original manufacturer or authorized distributors?
All PMEG4010ET-QR 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 PMEG4010ET-QR meets industry standards.
7.What is the process for return or replacement of PMEG4010ET-QR?
All PMEG4010ET-QR units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4010ET-QR, 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 PMEG4010ET-QR part is unused and in its original packaging.
Return procedure for PMEG4010ET-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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