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Nexperia USA Inc. PMEG3002AEB-QX
- Part No.:
- PMEG3002AEB-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
PMEG3002AEB-QX.pdf
- Description:
- PMEG3002AEB-Q/SOD523/SC-79
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
PMEG3002AEB-QX from Nexperia is a 30 V, 200 mA planar Schottky barrier diode with integrated guard ring for stress protection, housed in an ultra-small SOD523 (SC-79) package. It delivers a typical forward voltage of 420 mV at 200 mA, reverse leakage under 10 µA at 10 V, and 20–25 pF capacitance at 1 V - optimized for low-loss rectification and polarity protection in space-constrained automotive power rails.
For engineers reviewing the PMEG3002AEB-QX datasheet, PMEG3002AEB-QX pinout, PMEG3002AEB-QX application, or PMEG3002AEB-QX equivalent, key selection criteria include its AEC-Q101 qualification, 450 K/W junction-to-ambient thermal resistance on FR4, low-VF performance across 0.1–200 mA, and cathode-marked SC-79 footprint compatibility with high-density PCB layouts.
Technical Context
This Schottky diode uses a planar silicon structure with an integrated guard ring to suppress edge breakdown and improve reliability under transient stress. Its low forward voltage stems from optimized metal-semiconductor interface design, enabling efficient conduction at sub-1 V bias while maintaining stable reverse characteristics up to 30 V.
Thermal performance is defined for free-air and FR4-mounted conditions, with junction temperature limited to 125 °C and storage rated to 150 °C. The device operates with pulsed test conditions (tp ≤ 300 µs, duty cycle δ ≤ 0.02), reflecting its suitability for high-frequency switching rather than continuous DC conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Voltage (VF) | 420–480 mV at 200 mA pulse: enables <100 mW conduction loss in 3.3 V/5 V rail clamping and reverse-polarity protection circuits |
| Reverse Voltage (VR) | 30 V maximum: supports use in 24 V automotive systems with margin against load-dump transients |
| Reverse Leakage (IR) | 2.5–10 µA at 10 V: ensures minimal standby current in always-on battery-connected modules |
| Diode Capacitance (Cd) | 20–25 pF at 1 V, 1 MHz: preserves signal integrity in low-voltage data-line clamping applications |
| Junction-to-Ambient Rth | 450 K/W on FR4: defines thermal derating for sustained 150–200 mA operation in unheatsinked layouts |
| Peak Forward Current (IFSM) | 1 A for 8.3 ms half-sine: withstands automotive cold-crank surge events without failure |
Pinout & Package
Package: SOD523 (SC-79), plastic surface-mount package measuring 1.2 mm × 0.8 mm × 0.6 mm; marking bar denotes cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to lower-potential node; marking bar on package body identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to higher-potential node; forms forward-biased path when anode > cathode by ≥0.42 V |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Suppresses edge-related avalanche and improves long-term reliability under repetitive voltage stress |
| AEC-Q101 qualification | Validated for automotive-grade temperature cycling, humidity, and mechanical shock per discrete semiconductor standard |
| Ultra-low VF across wide current range | 130–480 mV from 0.1 mA to 200 mA: reduces power loss in both standby and active states |
| SOD523 footprint | 1.2 mm × 0.8 mm area: enables placement in tight spaces such as camera modules, ADAS sensors, and infotainment USB ports |
Applications
| Automotive Body Control Module (BCM) | USB Type-C Port Protection |
|---|---|
Use Scenario: Reverse-polarity protection on 12 V supply input to microcontroller-based door lock actuator driver. IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage during battery cable misconnection. Use Value: 420 mV VF limits voltage drop to <0.5% of nominal rail, preserving MCU brown-out margin and reducing heat in sealed enclosure. |
Use Scenario: VBUS line clamping and overvoltage suppression in automotive infotainment USB-C receptacle. IC Role / Device Role / Timing Role: Low-capacitance shunt diode limiting transient excursions above 5.5 V. Use Value: 25 pF capacitance avoids signal degradation on SuperSpeed differential pairs; 30 V rating covers worst-case hot-swap overshoot. |
| DC/DC Converter Output Rectification | Low-Power Sensor Node Power Path |
Use Scenario: Synchronous rectifier replacement in 3.3 V buck converter powering radar front-end ASIC. IC Role / Device Role / Timing Role: Freewheeling diode conducting during high-side switch off-time. Use Value: Sub-500 mV VF cuts conduction loss by >40% vs. standard silicon diode, improving light-load efficiency by 2–3 percentage points. |
Use Scenario: Isolation diode between coin-cell backup and main Li-ion supply in telematics GPS module. IC Role / Device Role / Timing Role: Prevents backfeed from primary battery into backup cell during normal operation. Use Value: 2.5 µA max IR at 3 V extends 220 mAh coin-cell life beyond 10 years in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB521S-30T2R | Higher VF (450–550 mV @ 200 mA); same SOD-523 package; no AEC-Q101 qualification | Acceptable for industrial consumer power rails but not certified for automotive underhood use | Select only if AEC-Q101 compliance is not required and 30 mV higher VF is tolerable in thermal budget |
| SD103AW-7-F | Lower IF rating (200 mA avg, 500 mA peak); 40 V VR; larger SOD-123 package (3.7 mm × 1.6 mm) | Offers higher voltage margin but occupies >5× board area; unsuitable for ultra-dense layouts | Choose when 40 V rating is mandatory and PCB real estate is not constrained |
Compared with RB521S-30T2R and SD103AW-7-F, PMEG3002AEB-QX uniquely combines AEC-Q101 qualification, 30 V/200 mA rating, and SOD523 size - making it the only option qualified for automotive interior electronics where space, reliability, and regulatory compliance are jointly critical.
Availability
PMEG3002AEB-QX is available at Aetrix Electronics and suitable for automotive body control modules, USB-C port protection circuits, and low-power sensor node power paths requiring stable component supply with full traceability and long-lifecycle support.
Supply support for PMEG3002AEB-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 high-volume, high-reliability essential semiconductors including logic, discretes, MOSFETs, and ESD protection devices.
This diode belongs to Nexperia's AEC-Q101-qualified Schottky portfolio, engineered specifically for automotive power management where low forward voltage, small footprint, and stress resilience are mandatory.
FAQ
Is PMEG3002AEB-QX suitable for continuous DC operation at 200 mA?
No - the 200 mA rating is specified under pulsed conditions (tp ≤ 300 µs, δ ≤ 0.02). For continuous operation, thermal limits require derating: at 25 °C ambient on FR4, maximum sustainable DC current is ~65 mA to stay within 125 °C junction temperature given its 450 K/W Rth(j-a).
What does the "B1" marking on the device indicate?
The "B1" top-side marking is the manufacturer-specific code for PMEG3002AEB-QX per Nexperia's ordering information table. It is not a date code or lot identifier - it uniquely identifies this diode variant in the SOD523 package with AEC-Q101 qualification and specified electrical parameters.
Can PMEG3002AEB-QX replace a standard PN-junction diode in a 5 V rail clamp?
Yes - its 30 V reverse rating and 420 mV forward voltage provide superior performance versus a typical 1N4148 (VF ≈ 700–1000 mV, VR = 100 V). However, verify that 30 V meets system overvoltage margin requirements, as the lower VR trades off voltage headroom for lower conduction loss.
Does the guard ring affect solder reflow profile requirements?
No - the guard ring is a process-level structural feature and does not alter thermal sensitivity. PMEG3002AEB-QX follows standard JEDEC J-STD-020D reflow guidelines for plastic SMD packages: peak temperature 260 °C, time above 217 °C ≤ 60 seconds, ramp rate ≤ 3 °C/s - matching the SOD523 footprint shown in Figure 6 of the datasheet.
PMEG3002AEB-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 480 mV @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 10 V
- Capacitance @ Vr, F:
- 20pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
- Operating Temperature - Junction:
- 125°C
PMEG3002AEB-QX FAQ
1.How can I place an order for PMEG3002AEB-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG3002AEB-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 PMEG3002AEB-QX reliable?
The price and inventory of PMEG3002AEB-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG3002AEB-QX is usually 5 days.
3.What payment methods are accepted for PMEG3002AEB-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG3002AEB-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG3002AEB-QX?
PMEG3002AEB-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG3002AEB-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 PMEG3002AEB-QX?
For technical support, including PMEG3002AEB-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG3002AEB-QX requirements.
6.How does Aetrix verify that PMEG3002AEB-QX is sourced from the original manufacturer or authorized distributors?
All PMEG3002AEB-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 PMEG3002AEB-QX meets industry standards.
7.What is the process for return or replacement of PMEG3002AEB-QX?
All PMEG3002AEB-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG3002AEB-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 PMEG3002AEB-QX part is unused and in its original packaging.
Return procedure for PMEG3002AEB-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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