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Nexperia USA Inc. PMEG4005AESFYL
- Part No.:
- PMEG4005AESFYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
PMEG4005AESFYL.pdf
- Description:
- DIODE SCHOTT 40V 500MA DSN0603-2
- Quantity:
- Payment:
- Shipping:
Inventory:20,267
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Product details
Overview
PMEG4005AESFYL from Nexperia is a 40 V, 0.5 A low forward voltage Schottky barrier rectifier in a DSN0603-2 (SOD962-2) leadless chip-scale package, designed for ultra-compact DC-to-DC conversion and mobile LED backlighting. It delivers typ. VF = 250 mV at IF = 10 mA, typ. IR = 3 µA at VR = 10 V, and trr < 1.25 ns - enabling high-efficiency, high-speed switching in space-constrained power rails.
For engineers reviewing the PMEG4005AESFYL datasheet, PMEG4005AESFYL pinout, PMEG4005AESFYL application, or PMEG4005AESFYL equivalent, key selection criteria include its 0.3 mm profile, cathode-marked 2-terminal layout, thermal resistance Rth(j-sp) = 40 K/W, and suitability for low-voltage rectification where VF minimization directly improves system efficiency.
Technical Context
This MEGA Schottky rectifier uses a planar silicon structure with integrated guard ring for robust stress protection under transient conditions. Its ultra-low VF stems from optimized metal-semiconductor interface design, while sub-nanosecond trr confirms true majority-carrier conduction without minority-carrier storage delay.
Thermal performance is defined by solder-point coupling: Rth(j-sp) = 40 K/W enables direct junction-to-pad heat transfer, and the 0.6 × 0.3 × 0.3 mm body supports reflow-compatible mounting on FR4 or ceramic PCBs with minimal footprint impact.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 40 V maximum reverse voltage - sets safe operating limit in 3.3 V/5 V/12 V rail clamping and flyback snubbing |
| IF(AV) | 0.5 A average forward current - supports continuous operation in portable DC-DC converters up to ~1 W output |
| VF | 250 mV typical at 10 mA - reduces conduction loss by >40% vs. standard Schottkys in low-current bias paths |
| IR | 3 µA typical at 10 V - minimizes leakage-induced battery drain in always-on mobile subsystems |
| trr | 1.25 ns typical - eliminates switching tail current, critical for >1 MHz synchronous rectifier timing |
| Package | DSN0603-2 (SOD962-2), 0.6 × 0.3 × 0.3 mm - fits 0201-class footprints with 0.25 mm pitch, enabling ultra-dense layout |
| Rth(j-sp) | 40 K/W - allows direct thermal path to copper pour, supporting 0.71 A peak current with controlled Tj rise |
Pinout & Package
DSN0603-2 (SOD962-2) is a 2-terminal, leadless chip-scale package with 0.3 mm nominal height and cathode-indicating marking bar. The device mounts directly via solder terminations on anode and cathode pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Output node for forward conduction; marked side of package - connects to regulated output or ground return path |
| 2 | Anode (A) | Input node for forward conduction - ties to input rail or switch node in buck/flyback topologies |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Prevents edge breakdown under voltage transients, improving reliability in unregulated input stages |
| 0.3 mm profile | Enables stacking under connectors or beneath thin-film shields in slim mobile designs |
| Low Cd = 7 pF at VR = 10 V | Minimizes capacitive coupling noise in high-dv/dt switching nodes and RF-sensitive sections |
| FR4-compatible thermal design | Delivers 0.5 A IF(AV) on standard PCBs without thermal vias - simplifies layout for cost-sensitive designs |
| Marking bar identification | Unambiguous cathode polarity visible under optical inspection - reduces assembly error in automated placement |
Applications
| Mobile LED Backlighting | USB-C Power Delivery Clamp |
|---|---|
Use Scenario: Driving white LEDs from 3.3 V or 5 V boost converter outputs in smartphones and wearables. IC Role / Device Role / Timing Role: Low-loss freewheeling diode in boost inductor path, conducting during switch-off phase. Use Value: 250 mV VF reduces forward drop by ≥150 mV vs. legacy Schottkys, extending battery runtime by measurable % in display-active cycles. | Use Scenario: Reverse-polarity and overvoltage protection at USB-C receptacle inputs. IC Role / Device Role / Timing Role: Clamp diode shunting fault energy into VBUS or GND, activated within nanoseconds of overvoltage event. Use Value: 1.25 ns trr ensures clamping action precedes IC-level protection triggers, preventing damage to Type-C controller or PD PHY. |
| Wearable Sensor Power Rail | Low-Power IoT Node Buck Converter |
Use Scenario: Supplying regulated 1.8 V or 2.5 V to MEMS accelerometers and BLE radios in hearables. IC Role / Device Role / Timing Role: Output rectifier in miniature synchronous buck, handling light-load discontinuous conduction mode. Use Value: 3 µA IR at 10 V limits quiescent leakage to <1 µA per rail - preserving microamp-level sleep current budgets. | Use Scenario: Secondary-side rectification in 3.3 V-output buck converters powering LPWAN modems. IC Role / Device Role / Timing Role: Freewheeling path during high-side FET off-time, carrying 0.1–0.5 A pulsed current. Use Value: 0.6 × 0.3 mm footprint allows placement adjacent to inductor without compromising EMI shielding coverage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB521S-40T1G | Higher VF (360 mV typ. @ 10 mA), same VR/IF rating, SOD-523 package (0.9 × 0.7 mm) | Larger footprint; less suitable for <0.5 mm pitch layouts | Select when board space permits larger package and slightly higher VF is acceptable for cost optimization |
| NSR0540HT1G | Lower VR (40 V same), higher IF(AV) (0.7 A), VF = 450 mV typ. @ 100 mA, SOD-123FL package (1.7 × 0.9 mm) | Higher conduction loss at light load; requires more PCB area | Select when peak current exceeds 0.5 A and thermal mass from larger package aids reliability under surge |
Compared with RB521S-40T1G and NSR0540HT1G, PMEG4005AESFYL provides the lowest VF in the smallest footprint - making it optimal for miniaturized, battery-critical designs where every millivolt and 0.1 mm² matters.
Availability
PMEG4005AESFYL is available at Aetrix Electronics and suitable for mobile LED backlighting, USB-C clamp circuits, wearable sensor power rails, and low-power IoT node buck converters requiring stable component supply across production lifecycles.
Supply support for PMEG4005AESFYL 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 semiconductors - delivering high-performance, reliable components for automotive, industrial, and consumer applications.
This device belongs to Nexperia's MEGA Schottky rectifier product line, engineered specifically for ultra-compact, high-efficiency power conversion in space- and power-constrained portable electronics.
FAQ
What is the maximum junction temperature for continuous operation?
The absolute maximum junction temperature is 150 °C. Under recommended operating conditions - including IF(AV) ≤ 0.5 A on FR4 PCB with standard footprint - junction temperature remains within safe limits when ambient stays below 100 °C or solder point temperature stays below 140 °C, per datasheet thermal derating curves.
Is PMEG4005AESFYL suitable for automotive applications?
No. This part is not AEC-Q200 qualified and lacks automotive-grade screening, temperature range validation, or failure-in-time (FIT) data. Nexperia explicitly states non-automotive qualification in the legal disclaimers; use only in consumer, industrial, or computing applications.
How does the guard ring improve reliability?
The integrated guard ring mitigates electric field crowding at the silicon periphery, suppressing premature edge breakdown during voltage transients or ESD events. This extends operational life in unregulated input stages and improves robustness against line surges in portable power supplies.
Can PMEG4005AESFYL replace a standard 1N5817 in a 5 V supply?
Only in low-current, space-constrained designs. While both are 40 V Schottkys, PMEG4005AESFYL has lower IF(AV) (0.5 A vs. 1 A) and requires reflow-compatible layout - it is not a drop-in replacement for through-hole or larger SMD diodes. Verify thermal margin and PCB footprint compatibility before substitution.
PMEG4005AESFYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 0201 (0603 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 820 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.25 ns
- Current - Reverse Leakage @ Vr:
- 80 µA @ 40 V
- Capacitance @ Vr, F:
- 18pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DSN0603-2
- Operating Temperature - Junction:
- 150°C (Max)
PMEG4005AESFYL FAQ
1.How can I place an order for PMEG4005AESFYL through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4005AESFYL 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 PMEG4005AESFYL reliable?
The price and inventory of PMEG4005AESFYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4005AESFYL is usually 5 days.
3.What payment methods are accepted for PMEG4005AESFYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4005AESFYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4005AESFYL?
PMEG4005AESFYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4005AESFYL 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 PMEG4005AESFYL?
For technical support, including PMEG4005AESFYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4005AESFYL requirements.
6.How does Aetrix verify that PMEG4005AESFYL is sourced from the original manufacturer or authorized distributors?
All PMEG4005AESFYL 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 PMEG4005AESFYL meets industry standards.
7.What is the process for return or replacement of PMEG4005AESFYL?
All PMEG4005AESFYL units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4005AESFYL, 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 PMEG4005AESFYL part is unused and in its original packaging.
Return procedure for PMEG4005AESFYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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