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Nexperia USA Inc. PMEG3005EGWX
- Part No.:
- PMEG3005EGWX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
PMEG3005EGWX.pdf
- Description:
- DIODE SCHOTTKY 30V 500MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:5,861
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Product details
Overview
PMEG3005EGWX from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, rated at 30 V reverse voltage and 0.5 A average forward current, featuring low 380 mV typical forward voltage and 40 µA typical reverse leakage - deployed in low-voltage DC-DC converters and reverse polarity protection circuits.
For engineers reviewing the PMEG3005EGWX datasheet, PMEG3005EGWX pinout, PMEG3005EGWX application, or PMEG3005EGWX equivalent, key selection criteria include VF vs. IF trade-off at 500 mA, thermal resistance to solder point (190 K/W), SOD123 footprint compatibility, and junction temperature derating above 125 °C.
Technical Context
This Schottky diode uses a planar silicon structure with an integrated guard ring to suppress edge breakdown and improve reliability under transient overvoltage stress. Its low VF stems from optimized metal-semiconductor interface design, enabling high efficiency in 3.3 V and 5 V rail rectification.
Thermal performance is defined by two critical paths: Rth(j-a) = 310 K/W (free air) and Rth(j-sp) = 190 K/W (to cathode solder point on FR4), with pulsed IFRM = 7 A and non-repetitive IFSM = 10 A capability - confirming suitability for switching regulator freewheeling and clamping roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 30 V maximum reverse voltage - sets upper limit for blocking capability in buck converter catch diodes and reverse protection. |
| IF(AV) | 0.5 A average forward current - defines continuous conduction rating at Tsp ≤ 145 °C with 50 % duty cycle square wave. |
| VF @ 500 mA | 380 mV typical - enables <150 mW conduction loss at full load, critical for thermally constrained portable power designs. |
| IR @ 30 V | 40 µA typical - ensures minimal standby leakage in battery-powered systems with reverse polarity protection. |
| Cd @ 1 V | 55–70 pF - low junction capacitance supports high-frequency switching (>1 MHz) without excessive capacitive turn-on loss. |
| Rth(j-sp) | 190 K/W - quantifies thermal path to cathode pad; enables accurate PCB copper area sizing for thermal management. |
| Tj max | 150 °C - maximum junction temperature; requires derating above ambient 120 °C per thermal characteristics curves. |
Pinout & Package
Encapsulated in the compact SOD123 surface-mount plastic package (2.675 mm × 1.6 mm × 1.15 mm), with cathode marked by a bar on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Output terminal for forward conduction; marking bar identifies this pin; connects to lower-potential node in rectification path. |
| 2 (A) | Anode | Input terminal for forward conduction; connects to higher-potential node (e.g., switch node in buck topology). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated guard ring | Suppresses edge-related avalanche breakdown, improving robustness against voltage transients and layout-induced field crowding. |
| Low VF (380 mV typ.) | Reduces forward conduction loss by >40 % versus standard PN diodes at 500 mA, directly extending battery life in portable DC-DC stages. |
| SOD123 footprint | Enables high-density placement with standardized reflow land pattern (2.36 mm × 1.11 mm cathode pad) per Nexperia's recommended layout. |
| 150 °C Tj max | Supports operation in thermally demanding environments such as enclosed industrial power modules without forced cooling. |
| 40 µA IR @ 30 V | Limits reverse-bias power dissipation to <1.2 µW, preserving quiescent current integrity in always-on sensor nodes. |
Applications
| DC-DC Converter Freewheeling | Reverse Polarity Protection |
|---|---|
Use Scenario: Used as the synchronous rectifier or freewheeling diode in 3.3 V/5 V buck converters operating at 500 kHz–2 MHz. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side switch off-time. Use Value: 380 mV VF minimizes conduction loss, while 70 pF Cd avoids switching loss penalties at high frequencies. |
Use Scenario: Placed in series with VIN to block reverse input connection in USB-powered peripherals and IoT sensors. IC Role / Device Role / Timing Role: Series-blocking diode preventing damage when external supply is connected with inverted polarity. Use Value: 40 µA IR ensures <1 µW standby loss; 30 V VR accommodates 24 V industrial inputs with margin. |
| Low-Voltage Rectification | Clamp Diode in Signal Lines |
Use Scenario: Rectifying auxiliary 3.3 V bias rails derived from transformer-coupled windings in isolated AC-DC adapters. IC Role / Device Role / Timing Role: Low-drop rectifier converting AC winding output to regulated DC bias. Use Value: 0.5 A IF(AV) supports up to 500 mA bias loads; 150 °C Tj rating allows operation near hot power components. |
Use Scenario: ESD clamp on 3.3 V I²C or UART lines, shunting transients to ground or rail. IC Role / Device Role / Timing Role: Fast-turn-on clamp limiting signal line voltage to safe levels during ESD events. Use Value: Sub-ns response time and low VF ensure clamping threshold stays below IC absolute maximum ratings. |
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 NSSR0530MX | Same SOD123 package; VF = 420 mV @ 500 mA (40 mV higher); IR = 25 µA @ 30 V (15 µA lower). | Better leakage performance but higher conduction loss - preferred where standby current dominates over active efficiency. | Select when ultra-low IR is prioritized over VF in battery cutoff or energy harvesting circuits. |
| Vishay SS32HE3/5BT | SOD123 package; IF(AV) = 3 A (6× higher); VF = 500 mV @ 500 mA (120 mV higher); VR = 20 V (10 V lower). | Higher current rating but reduced voltage margin - suitable for 12 V systems with surge tolerance needs. | Choose for higher-current 12 V DC-DC outputs where 30 V blocking is unnecessary and thermal headroom is available. |
Compared with NSSR0530MX and SS32HE3/5BT, PMEG3005EGWX delivers optimal balance of low VF, moderate IR, and 30 V VR in the smallest SOD123 footprint - making it ideal for space-constrained 3.3/5 V power rails where both efficiency and voltage margin matter.
Availability
PMEG3005EGWX is available at Aetrix Electronics and suitable for low-voltage rectification, reverse polarity protection, and high-efficiency DC-to-DC conversion requiring stable component supply across production volumes and long-lifecycle programs.
Supply support for PMEG3005EGWX 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 - high-volume, high-reliability discrete, logic, and MOSFET devices engineered for automotive, industrial, and consumer applications.
PMEG3005EGWX belongs to Nexperia's Schottky rectifier product line, designed specifically for high-efficiency, low-voltage power conversion in space-constrained and thermally sensitive applications.
FAQ
What is the maximum allowable junction temperature for PMEG3005EGWX?
The absolute maximum junction temperature is 150 °C, as specified in the Limiting Values table. Operation above this temperature risks permanent degradation. Derating is required above ambient 120 °C, and thermal design must account for Rth(j-sp) = 190 K/W to the cathode solder point on FR4 PCB.
Is PMEG3005EGWX automotive qualified?
No - the datasheet explicitly states this device was changed to "non-automotive" status in revision v.2 (2023). It is not qualified to AEC-Q101 and lacks automotive-grade screening, traceability, or guaranteed PPAP support. Automotive designs require Nexperia's -Q suffix variants.
How does the integrated guard ring affect reliability?
The guard ring mitigates electric field crowding at the die edge, raising the effective reverse breakdown voltage and improving immunity to localized overstress. This extends operational lifetime under repetitive voltage transients and reduces early-life failure rates in unregulated input applications.
Can PMEG3005EGWX replace a standard PN rectifier in a 5 V buck converter?
Yes - its 380 mV VF at 500 mA reduces conduction loss by ~65 % versus a typical PN diode (VF ≈ 1.1 V), directly improving efficiency and reducing thermal load. However, verify reverse recovery behavior is not needed (Schottky has no minority-carrier storage), and confirm layout accommodates SOD123 footprint.
PMEG3005EGWX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 430 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 150 µA @ 30 V
- Capacitance @ Vr, F:
- 55pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- 150°C (Max)
PMEG3005EGWX FAQ
1.How can I place an order for PMEG3005EGWX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG3005EGWX 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 PMEG3005EGWX reliable?
The price and inventory of PMEG3005EGWX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG3005EGWX is usually 5 days.
3.What payment methods are accepted for PMEG3005EGWX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG3005EGWX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG3005EGWX?
PMEG3005EGWX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG3005EGWX 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 PMEG3005EGWX?
For technical support, including PMEG3005EGWX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG3005EGWX requirements.
6.How does Aetrix verify that PMEG3005EGWX is sourced from the original manufacturer or authorized distributors?
All PMEG3005EGWX 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 PMEG3005EGWX meets industry standards.
7.What is the process for return or replacement of PMEG3005EGWX?
All PMEG3005EGWX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG3005EGWX, 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 PMEG3005EGWX part is unused and in its original packaging.
Return procedure for PMEG3005EGWX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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