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Nexperia USA Inc. PMEG4005AEA/M5X
- Part No.:
- PMEG4005AEA/M5X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PMEG4005AEA/M5X.pdf
- Description:
- DIODE SCHOTTKY 40V 500MA SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:5,332
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Product details
Overview
PMEG4005AEA from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, rated at 40 V reverse voltage and 0.5 A continuous forward current, featuring a typical forward voltage of 420 mV at 500 mA and reverse leakage under 100 µA at 40 V - deployed in low-voltage DC/DC converters and polarity protection circuits.
For engineers reviewing the PMEG4005AEA datasheet, PMEG4005AEA pinout, PMEG4005AEA application, or PMEG4005AEA equivalent, key selection criteria include ultra-low VF performance, SOD323 package thermal resistance (Rth(j-sp) = 210 K/W), surge current capability (IFSM = 10 A), and cathode-marked anode-cathode polarity alignment in space-constrained PCB layouts.
Technical Context
This Schottky diode uses a planar silicon structure with an integrated guard ring to enhance ruggedness against transient overvoltage and electrostatic stress. Its low-barrier metal-semiconductor junction delivers fast switching (no minority-carrier storage) and minimal forward conduction loss.
The device operates within a junction temperature range of −65 °C to 150 °C and is characterized for stable performance across ambient temperatures from −65 °C to 150 °C, with thermal resistance from junction to solder point specified at 210 K/W on standard FR4 PCB layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - maximum blocking capability without breakdown in reverse bias, suitable for 3.3 V–24 V rail clamping and input protection. |
| Forward Current (IF) | 0.5 A continuous - supports sustained load current in compact power rails without derating at Tamb ≤ 70 °C. |
| Forward Voltage (VF) | 420–470 mV @ 500 mA - reduces conduction loss by >30% vs. standard PN diodes, critical for efficiency in battery-powered systems. |
| Reverse Leakage (IR) | 30–100 µA @ 40 V - enables low-quiescent-current operation in always-on voltage clamp or backup supply paths. |
| Diode Capacitance (Cd) | 43–50 pF @ 1 V - limits high-frequency noise coupling and ensures clean switching in MHz-range DC/DC feedback paths. |
| Surge Current (IFSM) | 10 A @ 8 ms - withstands inrush and fault transients in USB-powered peripherals and hot-swap circuits. |
| Junction-to-Solder Thermal Resistance | 210 K/W - enables direct thermal path to copper pour, supporting >0.4 W dissipation in minimal footprint layouts. |
Pinout & Package
Encapsulated in a SOD323 (SC-76) surface-mount plastic package measuring 1.7 mm × 1.25 mm × 0.95 mm with 1.3 mm lead pitch and cathode-marked top-side bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Negative terminal; marked by visible bar on package top; connects to ground or lower-potential node in rectification/clamp paths. |
| 2 | Anode (A) | Positive terminal; ties to input rail or switched node; polarity must be verified before placement to prevent reverse conduction failure. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low forward voltage | 420 mV typ. @ 500 mA - cuts forward power loss to <210 mW, enabling higher efficiency in sub-1 W converters. |
| Integrated guard ring | Enhances ESD robustness (HBM > 8 kV) and transient immunity - eliminates need for external TVS in many low-energy protection schemes. |
| Small SMD footprint | SOD323 package occupies only 2.1 mm² board area - ideal for wearables, IoT sensors, and multi-rail PMIC output stages. |
| High surge current rating | 10 A non-repetitive peak - sustains USB inrush, capacitor charging spikes, and load-dump events without parametric shift. |
Applications
| USB Power Input Protection | Low-Voltage DC/DC Output Rectification |
|---|---|
Use Scenario: Preventing damage from reversed USB cable insertion or faulty host port polarity in portable devices. IC Role / Device Role / Timing Role: Unidirectional current gate placed between USB VBUS and system input rail. Use Value: Blocks reverse current with <100 µA leakage while adding only 420 mV drop - preserving >95% of 5 V input under full 500 mA load. | Use Scenario: Rectifying synchronous buck converter output in 3.3 V or 1.8 V point-of-load supplies. IC Role / Device Role / Timing Role: Freewheeling diode replacing MOSFET body diode in asynchronous designs. Use Value: Reduces conduction loss by ~35% vs. standard Si diode, improving light-load efficiency and easing thermal design in dense layouts. |
| Voltage Clamping in Signal Lines | Inverse Polarity Protection for Coin Cell Backup |
Use Scenario: Limiting transient overvoltage on I²C, UART, or GPIO lines exposed to ESD or inductive kickback. IC Role / Device Role / Timing Role: Clamp diode tied between signal line and local ground or rail. Use Value: Activates at ~420 mV forward drop, limiting excursion to safe levels before IC input structures are stressed - no timing delay or propagation skew. | Use Scenario: Protecting microcontroller RTC or SRAM during main power loss using CR2032 coin cell. IC Role / Device Role / Timing Role: Series-blocking diode isolating backup battery from main system rail. Use Value: Adds only 420 mV drop at 10 µA typical backup current - extending usable battery life beyond 5 years while preventing backfeed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40050MUTBG | Same SOD323 package, VF = 450 mV typ. @ 500 mA, IR = 50 µA max @ 40 V, Rth(j-a) = 420 K/W | Higher thermal resistance limits power handling in unventilated enclosures | Select when sourcing diversity is required and board-level thermal relief is available. |
| Diodes Inc. AP1505W5-7 | SOD323 package, VR = 40 V, IF = 0.5 A, VF = 430 mV typ. @ 500 mA, Cd = 45 pF | Identical capacitance and VF but lacks guard ring - lower ESD tolerance (HBM = 4 kV) | Prefer for cost-sensitive consumer designs where ESD exposure is controlled. |
Compared with NSS40050MUTBG and AP1505W5-7, PMEG4005AEA offers superior thermal performance (Rth(j-sp) = 210 K/W) and integrated guard ring for enhanced reliability in industrial and portable environments - making it optimal where board space, efficiency, and ruggedness are jointly constrained.
Availability
PMEG4005AEA is available at Aetrix Electronics and suitable for USB power protection, low-voltage DC/DC rectification, voltage clamping, and inverse polarity protection requiring stable component supply and consistent SOD323 packaging.
Supply support for PMEG4005AEA 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, mobile, and computing markets.
The PMEG4005AEA belongs to Nexperia's Schottky rectifier product line, engineered specifically for ultra-low VF operation in space- and efficiency-critical power management applications.
FAQ
What is the maximum junction temperature for continuous operation?
The PMEG4005AEA has a maximum junction temperature of 150 °C, validated per IEC 60134 Absolute Maximum Ratings. Continuous operation at this limit requires thermal design ensuring Rth(j-a) ≤ 300 K/W or use of solder-point thermal relief; derating is recommended above 125 °C ambient.
Can PMEG4005AEA replace a standard PN diode in a 3.3 V LDO output stage?
Yes - its 420 mV forward voltage at 500 mA reduces dropout by ~550 mV versus a typical 1N4148 (VF ≈ 970 mV), improving regulation margin and enabling tighter output tolerance. However, reverse leakage (up to 100 µA) exceeds PN diodes and must be verified against LDO quiescent current specs.
Is the SOD323 package compatible with standard reflow profiles?
Yes - Nexperia specifies compatibility with JEDEC J-STD-020D reflow profiles. Peak temperature must not exceed 260 °C for ≤ 30 seconds, with ramp rates ≤ 3 °C/s. The SOD323 footprint shown in Figure 5 (solder lands: 0.5 mm × 0.6 mm, 1.5 mm center spacing) ensures reliable wetting and coplanarity.
Does the marking 'E3' correspond to the full part number?
Yes - 'E3' is the unique top-side marking for PMEG4005AEA per Table 4 of the datasheet. It appears adjacent to the cathode bar on the SOD323 package and is used for visual verification and automated optical inspection (AOI) during assembly.
PMEG4005AEA/M5X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 470 mV @ 500 mA
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- 150°C (Max)
PMEG4005AEA/M5X FAQ
1.How can I place an order for PMEG4005AEA/M5X through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4005AEA/M5X 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 PMEG4005AEA/M5X reliable?
The price and inventory of PMEG4005AEA/M5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4005AEA/M5X is usually 5 days.
3.What payment methods are accepted for PMEG4005AEA/M5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4005AEA/M5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4005AEA/M5X?
PMEG4005AEA/M5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4005AEA/M5X 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 PMEG4005AEA/M5X?
For technical support, including PMEG4005AEA/M5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4005AEA/M5X requirements.
6.How does Aetrix verify that PMEG4005AEA/M5X is sourced from the original manufacturer or authorized distributors?
All PMEG4005AEA/M5X 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 PMEG4005AEA/M5X meets industry standards.
7.What is the process for return or replacement of PMEG4005AEA/M5X?
All PMEG4005AEA/M5X units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4005AEA/M5X, 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 PMEG4005AEA/M5X part is unused and in its original packaging.
Return procedure for PMEG4005AEA/M5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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