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Nexperia USA Inc. PMEG2005ET,215
- Part No.:
- PMEG2005ET,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PMEG2005ET,215.pdf
- Description:
- DIODE SCHOTTKY 20V 500MA TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:54,166
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Product details
Overview
PMEG2005ET,215 from Nexperia is a planar Schottky barrier rectifier with integrated guard ring for stress protection, rated at 20 V reverse voltage and 0.5 A forward current, featuring a typical forward voltage of 355 mV at 500 mA, housed in a SOT23 surface-mount package. It serves as a low-loss anode-cathode switching element in compact DC/DC converters and polarity protection circuits.
For engineers reviewing the PMEG2005ET,215 datasheet, PMEG2005ET,215 pinout, PMEG2005ET,215 application, or PMEG2005ET,215 equivalent, key selection criteria include its ultra-low VF (≤390 mV), 20 V VR rating, SOT23 footprint compatibility, thermal resistance (300 K/W on 1 cm² cathode pad), and non-automotive qualification status.
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 junction design, enabling high conduction efficiency at low currents (10–500 mA).
The device exhibits low reverse leakage (≤200 µA at 20 V, 25 °C) and modest junction capacitance (66–80 pF at 1 V), making it suitable for high-frequency rectification where switching loss and capacitive loading must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 20 V - Maximum blocking capability without breakdown; defines usable input range in low-voltage power rails. |
| Forward Current (IF) | 0.5 A continuous - Sustained conduction capacity; supports up to 500 mA DC load in thermally managed layouts. |
| Forward Voltage (VF) | 355 mV typ. @ 500 mA - Enables <0.2 W conduction loss at full rated current, critical for >90% efficiency in 3.3 V/5 V DC/DC stages. |
| Reverse Leakage (IR) | 40 µA typ. @ 20 V - Low standby loss; preserves battery life in always-on low-power systems. |
| Junction Capacitance (Cd) | 66 pF typ. @ 1 V - Limits high-frequency displacement current; maintains fast turn-off in PWM-controlled buck stages. |
| Thermal Resistance (Rth(j-a)) | 300 K/W - Achievable with 1 cm² cathode copper pad; enables ~120 °C junction rise at 420 mW dissipation. |
Pinout & Package
Encapsulated in a standard SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), the PMEG2005ET,215 features three terminals with Pin 2 internally unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Positive terminal for forward conduction; connects to input/high-side rail in polarity protection or rectification paths. |
| 2 | Not Connected (n.c.) | No internal bond; must remain floating-no PCB trace or solder mask opening required. |
| 3 | Cathode (K) | Negative terminal; ties to ground or output node; primary thermal path via large copper pad per datasheet layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Suppresses edge electric field concentration, improving surge robustness and long-term reliability under repetitive voltage transients. |
| Ultra-low VF at 500 mA | 355 mV typical-reduces conduction loss by >40% versus standard Schottkys in same package, directly boosting light-load efficiency. |
| SOT23 footprint compatibility | Standard 3-pin SMD outline enables drop-in replacement in space-constrained designs without layout revision. |
| Low IR at 20 V | 40 µA typical reverse leakage-minimizes quiescent drain in battery-backed or energy-harvesting applications. |
Applications
| USB Power Input Protection | Point-of-Load DC/DC Output Rectification |
|---|---|
|
Use Scenario: Prevents damage from reversed USB cable insertion in portable devices. IC Role / Device Role / Timing Role: Unidirectional current gate placed between USB connector and system input rail. Use Value: 355 mV VF ensures <175 mW loss at 500 mA, avoiding thermal derating while maintaining >4.8 V output under full load. |
Use Scenario: Freewheeling path in synchronous buck converter output stage. IC Role / Device Role / Timing Role: Secondary rectifier conducting during low-side FET off-time. Use Value: 66 pF capacitance limits ringing and EMI; low IR avoids output rail drift during light-load discontinuous conduction mode. |
| Low-Power Sensor Node Supply | Industrial IoT Battery Backup Path |
|
Use Scenario: Supplies regulated 3.3 V to wireless sensor MCU from coin-cell or energy-harvesting source. IC Role / Device Role / Timing Role: Reverse-polarity blocking diode in supply path before LDO or DC/DC input. Use Value: 40 µA max IR at 20 V prevents >1% self-discharge in multi-year deployments; SOT23 fits 2.5 mm² board area budgets. |
Use Scenario: Isolates main supply from backup supercapacitor or Li-ion cell in programmable logic controllers. IC Role / Device Role / Timing Role: OR-ing diode enabling seamless switchover without voltage dip or backfeed. Use Value: 20 V VR rating accommodates 12 V nominal systems with 30% tolerance; 300 K/W Rth(j-a) allows operation at 75 °C ambient without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB520S-30T1G | 30 V VR, 200 mA IF, VF = 370 mV @ 100 mA - higher voltage rating but lower current capacity. | Better suited for 24 V industrial inputs; insufficient for sustained 500 mA loads. | Select when system VR margin exceeds 20 V and peak current stays below 200 mA. |
| SS12 | 20 V VR, 1 A IF, VF = 500 mV @ 1 A - higher current, higher VF, DO-214AC package. | Requires larger PCB area; conduction loss doubles at 500 mA vs. PMEG2005ET. | Choose only if 1 A surge capability is mandatory and SOT23 size constraint is relaxed. |
Compared with RB520S-30T1G and SS12, the PMEG2005ET,215 uniquely balances 20 V/0.5 A rating, ultra-low VF (355 mV), and SOT23 footprint-making it optimal for space-limited, efficiency-critical 3.3–5 V systems where thermal management is constrained.
Availability
PMEG2005ET,215 is available at Aetrix Electronics and suitable for USB power protection, point-of-load DC/DC rectification, and low-power sensor node supply requiring stable component supply and consistent SOT23 packaging across production batches.
Supply support for PMEG2005ET,215 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 discrete and logic devices, with leadership in automotive-qualified and standard logic, MOSFETs, and diodes.
The PMEG2005ET,215 belongs to Nexperia's low-VF Schottky rectifier family, engineered specifically for efficiency-critical, space-constrained power management in consumer, computing, and industrial electronics-not qualified for automotive use.
FAQ
Is PMEG2005ET,215 qualified for automotive applications?
No. The datasheet explicitly states this part is "non-automotive qualified" and lacks AEC-Q101 certification. Automotive alternatives-such as the PMEG2005AEA,215 (Q-grade)-are available from Nexperia but differ in qualification, marking, and packaging. Use only Q-grade parts in vehicle systems.
What is the maximum allowable PCB temperature rise for continuous 0.5 A operation?
At 0.5 A and 355 mV VF, power dissipation is 177.5 mW. With Rth(j-a) = 300 K/W (on 1 cm² cathode pad), junction-to-ambient rise is ~53 °C. For a 125 °C max Tj and 70 °C ambient, the safe operating margin is 55 °C-well within limit. Derating begins above 100 °C ambient.
Can Pin 2 be grounded or left floating in layout?
Pin 2 is internally not connected (n.c.) per datasheet Table 2. It must remain electrically floating-no connection to ground, power, or signal traces. PCB land pattern may omit solder mask opening, but no routing or stitching is permitted.
How does the guard ring affect ESD robustness?
The integrated guard ring reduces electric field crowding at the silicon edge, raising the threshold for electrostatic discharge-induced junction failure. While not rated to IEC 61000-4-2, the structure improves survivability against human-body-model (HBM) events up to ±8 kV-verified in Nexperia's internal qualification testing.
PMEG2005ET,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 390 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 20 V
- Capacitance @ Vr, F:
- 66pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
- Operating Temperature - Junction:
- 150°C (Max)
PMEG2005ET,215 FAQ
1.How can I place an order for PMEG2005ET,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMEG2005ET,215 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 PMEG2005ET,215 reliable?
The price and inventory of PMEG2005ET,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMEG2005ET,215 is usually 5 days.
3.What payment methods are accepted for PMEG2005ET,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMEG2005ET,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMEG2005ET,215?
PMEG2005ET,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMEG2005ET,215 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 PMEG2005ET,215?
For technical support, including PMEG2005ET,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMEG2005ET,215 requirements.
6.How does Aetrix verify that PMEG2005ET,215 is sourced from the original manufacturer or authorized distributors?
All PMEG2005ET,215 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 PMEG2005ET,215 meets industry standards.
7.What is the process for return or replacement of PMEG2005ET,215?
All PMEG2005ET,215 units undergo pre-shipment inspection (PSI). If there is an issue with PMEG2005ET,215, 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 PMEG2005ET,215 part is unused and in its original packaging.
Return procedure for PMEG2005ET,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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