My Inquiry
My Account
Nexperia USA Inc. PMEG4020EP-QX
- Part No.:
- PMEG4020EP-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
PMEG4020EP-QX.pdf
- Description:
- DIODE SCHOTTKY 40V 2A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PMEG4020EP-QX from Nexperia is a 40 V, 2 A planar Schottky barrier rectifier with integrated guard ring for stress protection, housed in a SOD128 (CFP5) surface-mount package. It delivers low forward voltage (430–490 mV at 2 A, 25 °C), high power capability via clip-bond technology, and AEC-Q101 qualification - deployed in automotive DC-DC converters for reverse polarity protection and low-voltage rectification.
For engineers reviewing the PMEG4020EP-QX datasheet, PMEG4020EP-QX pinout, PMEG4020EP-QX application, or PMEG4020EP-QX equivalent, key selection criteria include its 40 V VR rating, 2 A IF(AV), 430–490 mV VF at full load, 25–100 µA IR at 40 V, and thermal resistance of 60 K/W (junction-to-solder point on ceramic PCB).
Technical Context
This Schottky rectifier uses a planar die structure with an integrated guard ring to enhance ruggedness against electrical overstress and transient voltage spikes. Its clip-bond construction reduces thermal resistance and improves current handling versus wire-bonded equivalents.
Designed for automotive-grade reliability, it operates across −55 °C to +150 °C junction temperature and supports both reflow and wave soldering. The device exhibits low capacitance (95 pF at 10 V, 1 MHz) and fast switching with negligible reverse recovery charge - critical for high-frequency SMPS efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 40 V - Maximum blocking voltage before breakdown; defines usable input range in 12 V/24 V automotive systems. |
| IF(AV) (Avg Forward Current) | 2 A - Continuous DC or pulsed current capacity at Tsp ≤ 140 °C; enables compact 2 A power rail designs. |
| VF (Forward Voltage) | 430–490 mV @ 2 A, 25 °C - Low conduction loss directly improves system efficiency and reduces heatsink requirements. |
| IR (Reverse Current) | 25–100 µA @ 40 V, 25 °C - Low leakage preserves battery life in always-on automotive modules. |
| Rth(j-sp) (Junction-to-Solder Point) | 60 K/W - Enables effective heat transfer from cathode tab to PCB copper; critical for sustained 2 A operation on ceramic substrates. |
| Cd (Diode Capacitance) | 95 pF @ 10 V, 1 MHz - Minimizes switching losses and EMI in >100 kHz DC-DC topologies. |
Pinout & Package
The PMEG4020EP-QX is packaged in a SOD128 (CFP5) surface-mount plastic case measuring 3.8 mm × 2.6 mm × 1.0 mm, featuring a flat lead profile optimized for automated assembly and thermal performance. Cathode-side marking bar enables rapid orientation verification during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Primary current exit path; thermally connected to large copper pad for heat dissipation; marked by bar on package. |
| 2 (A) | Anode | Current entry terminal; smaller pad area; electrically isolated from heatsinking plane. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including engine control units and body electronics. |
| Clip-bond construction | Reduces bond wire inductance and thermal resistance vs. wire-bonded diodes, supporting higher peak currents (50 A IFSM). |
| Integrated guard ring | Improves edge termination robustness against voltage transients and humidity-induced surface leakage. |
| SOD128 footprint compatibility | Enables drop-in replacement in existing layouts designed for industry-standard 4 mm pitch, 2-terminal SMD rectifiers. |
Applications
| Automotive Body Control Module (BCM) | 12 V Automotive DC-DC Converter |
|---|---|
Use Scenario: Reverse polarity protection on 12 V supply input to microcontroller-based lighting and door module PCBs. IC Role / Device Role / Timing Role: Unidirectional current gate placed upstream of LDOs and CAN transceivers to prevent damage from battery misconnection. Use Value: 430–490 mV VF minimizes voltage drop and self-heating during normal operation; AEC-Q101 ensures field reliability over 15-year vehicle lifetime. |
Use Scenario: Output rectification in synchronous buck converter powering ADAS camera modules. IC Role / Device Role / Timing Role: Low-loss freewheeling diode replacing MOSFET body diode in non-synchronous mode or assisting synchronous rectification. Use Value: 95 pF capacitance and fast switching reduce ringing and EMI; 2 A IF(AV) supports 1.8 A output with 10% margin at 105 °C ambient. |
| Infotainment Power Supply | Start-Stop System Auxiliary Rail |
Use Scenario: Low-voltage rectification in USB-C PD adapter secondary side delivering 5 V/3 A to infotainment head unit. IC Role / Device Role / Timing Role: Secondary-side Schottky rectifier in flyback or LLC topology, operating at 100–300 kHz switching frequency. Use Value: Low VF and 60 K/W Rth(j-sp) enable stable 2 A operation without forced air cooling on standard FR4 PCBs. |
Use Scenario: Input protection and rectification in 48 V auxiliary power supply for start-stop motor control logic. IC Role / Device Role / Timing Role: Clamp and rectify regenerated energy during regenerative braking events; handles repetitive 50 A IFSM surges. Use Value: Guard ring and clip-bond design withstand repeated load dump transients up to ISO 7637-2 Pulse 5a; 150 °C Tj rating supports under-hood mounting. |
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-2EYH02-M3/5BT | Same 40 V VR, 2 A IF(AV), but VF = 490–550 mV @ 2 A; TO-277 package (larger footprint, higher Rth(j-a)). | Lacks AEC-Q101 qualification; not validated for automotive underhood use. | Prefer for industrial non-automotive SMPS where cost is prioritized over qualification and thermal density. |
| ON Semiconductor NSR20F40NXT5G | 40 V VR, 2 A IF(AV), VF = 450–510 mV @ 2 A; SOD-123FL package (smaller, no clip-bond, Rth(j-sp) ~100 K/W). | Qualified to AEC-Q101 but lacks guard ring; lower surge robustness in load-dump scenarios. | Acceptable for interior automotive modules with lower transient exposure; avoid in engine bay or BCM inputs. |
Compared with VS-2EYH02-M3/5BT and NSR20F40NXT5G, the PMEG4020EP-QX uniquely combines AEC-Q101 qualification, clip-bond thermal performance (60 K/W), and integrated guard ring - making it the only option suitable for high-reliability 12 V/24 V automotive rectification where space, efficiency, and transient immunity are jointly constrained.
Availability
PMEG4020EP-QX is available at Aetrix Electronics and suitable for automotive body control modules, 12 V DC-DC converters, and infotainment power supplies requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101-compliant sourcing.
Supply support for PMEG4020EP-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 essential semiconductors - high-volume, high-reliability discrete, logic, and MOSFET devices engineered for automotive, industrial, and computing applications.
The PMEG4020EP-QX belongs to Nexperia's AEC-Q101-qualified Schottky rectifier product line, developed specifically to replace legacy wire-bonded diodes in space-constrained automotive power rails while improving thermal performance and transient robustness.
FAQ
Is PMEG4020EP-QX compatible with lead-free reflow soldering profiles?
Yes. The device is qualified for both lead-free reflow (per J-STD-020) and wave soldering. Its SOD128 package withstands peak temperatures up to 260 °C for 30 seconds, and the internal clip-bond structure remains mechanically stable under thermal cycling stress typical of automotive manufacturing.
What is the maximum allowable solder point temperature during operation?
The datasheet specifies Tsp ≤ 140 °C for continuous 2 A operation. This limit ensures junction temperature stays within the 150 °C absolute maximum, accounting for Rth(j-sp) = 60 K/W on ceramic PCBs. Exceeding 140 °C risks accelerated degradation of the Schottky metallization interface.
Does the guard ring affect the device's reverse recovery behavior?
No - Schottky diodes have no minority-carrier storage, so reverse recovery time is effectively zero. The guard ring solely enhances voltage standoff stability and surface leakage immunity under humidity or contamination; it does not introduce minority carriers or alter switching dynamics.
Can PMEG4020EP-QX be used in parallel configurations for higher current?
Not recommended without external balancing. While VF matching is tight (±30 mV at 2 A), thermal coupling differences between parallel devices cause current hogging. For >2 A applications, select a single higher-rated part (e.g., PMEG6020ER-QX) or implement active current sharing.
PMEG4020EP-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-128
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 490 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Capacitance @ Vr, F:
- 250pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128/CFP5
- Operating Temperature - Junction:
- 150°C
PMEG4020EP-QX FAQ
1.How can I place an order for PMEG4020EP-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG4020EP-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 PMEG4020EP-QX reliable?
The price and inventory of PMEG4020EP-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG4020EP-QX is usually 5 days.
3.What payment methods are accepted for PMEG4020EP-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG4020EP-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG4020EP-QX?
PMEG4020EP-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG4020EP-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 PMEG4020EP-QX?
For technical support, including PMEG4020EP-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG4020EP-QX requirements.
6.How does Aetrix verify that PMEG4020EP-QX is sourced from the original manufacturer or authorized distributors?
All PMEG4020EP-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 PMEG4020EP-QX meets industry standards.
7.What is the process for return or replacement of PMEG4020EP-QX?
All PMEG4020EP-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMEG4020EP-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 PMEG4020EP-QX part is unused and in its original packaging.
Return procedure for PMEG4020EP-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMEG4020EP-QX Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
