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Nexperia USA Inc. SL02X
- Part No.:
- SL02X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- -
- Datasheet:
-
SL02X.pdf
- Description:
- SL02/SOD123FL/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:6,460
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Product details
Overview
SL02X from Nexperia is a surface-mount Schottky barrier diode in SOD123FL package, rated for 20 V reverse voltage and 2 A average forward current, with low 0.45 V typical forward voltage at 1 A, optimized for DC-DC converter output rectification and USB power path protection.
For engineers reviewing the SL02X datasheet, SL02X pinout, SL02X application, or SL02X equivalent, key selection criteria include its 2 A continuous current capability, 0.45 V VF @ 1 A, 20 V VR, thermal resistance of 125 K/W (junction-to-ambient), and compatibility with standard reflow profiles per JEDEC J-STD-020.
Technical Context
The SL02X employs a planar Schottky junction structure on silicon, enabling fast switching with negligible reverse recovery charge (Qrr ≈ 0 nC), making it suitable for high-frequency synchronous rectification up to 1 MHz. Its low forward voltage drop directly reduces conduction losses in 3.3 V and 5 V power rails.
Thermally, the SOD123FL package provides a defined thermal path via two copper terminals and exposed metal under the cathode stripe; the device is characterized at TJ = 150 °C maximum, with derating applied above TA = 75 °C per the published thermal curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR - Repetitive Peak Reverse Voltage | 20 V - Maximum allowable DC or peak AC reverse bias before breakdown; sets upper limit for input/output rail separation in buck converters. |
| IF(AV) - Average Forward Current | 2 A - Continuous DC current rating at TC = 75 °C; defines usable current capacity in PCB-constrained thermal environments. |
| VF - Forward Voltage | 0.45 V @ IF = 1 A - Measured voltage drop across anode-cathode at 1 A; determines conduction loss (Pcond ≈ 0.45 W per diode at 1 A). |
| IR - Reverse Leakage Current | 100 µA @ VR = 20 V, TJ = 125 °C - Small leakage ensures minimal standby power loss in always-on circuits like battery backup paths. |
| RθJA - Junction-to-Ambient Thermal Resistance | 125 K/W - Measured on standard 1 oz Cu FR-4 pad; used to calculate temperature rise (ΔT = Pdiss × RθJA) for layout thermal validation. |
| Package | SOD123FL - 2-terminal surface-mount plastic package (3.0 × 1.9 × 1.0 mm); supports automated placement and reflow soldering per JEDEC J-STD-020. |
Pinout & Package
SOD123FL is a 2-terminal surface-mount package with cathode-indicated marking (band) on one end. The body measures 3.0 mm × 1.9 mm × 1.0 mm, with nominal terminal pitch of 3.2 mm and seated height of 0.99 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck topology); must be routed with low-inductance trace for EMI control. |
| Cathode | Forward current exit / polarity reference | Marked by band; connects to output rail or ground return; serves as thermal and electrical reference plane in layout. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.45 V @ 1 A - Reduces power loss by >30% vs. comparable 1N5819 (VF ≈ 0.6 V), improving efficiency in portable 5 V systems. |
| Fast switching with zero Qrr | Qrr ≈ 0 nC - Eliminates reverse recovery loss and associated ringing, simplifying EMI filter design in SMPS. |
| SOD123FL footprint compatibility | JEDEC-standard 3.0 × 1.9 mm outline - Enables drop-in replacement for legacy SOD-123 parts without PCB redesign. |
| High surge current rating | IFSM = 50 A @ 8.3 ms - Withstands inrush and transient overloads in hot-swap and load-switch applications. |
Applications
| USB Power Delivery Input Protection | 5 V Buck Converter Output Rectification |
|---|---|
Use Scenario: Prevents reverse current flow from VBUS into host when external power is disconnected, while minimizing voltage drop during normal operation. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed between USB-C port and system PMIC input. Use Value: 0.45 V VF ensures ≥4.55 V delivered to PMIC at 1 A, meeting USB PD 3.0 minimum VBUS regulation tolerance. | Use Scenario: Rectifies switched node output in non-synchronous buck regulator powering FPGA I/O banks. IC Role / Device Role / Timing Role: Freewheeling diode conducting during low-side switch off-time. Use Value: Zero Qrr eliminates switching node voltage spikes >10 V, reducing need for snubbers and easing EMI compliance testing. |
| Industrial Sensor Node Battery Backup Path | Automotive Body Control Module Load Switch |
Use Scenario: OR-ing diode between primary Li-ion battery and supercapacitor backup supply in wireless sensor nodes. IC Role / Device Role / Timing Role: Automatic power-path selector ensuring seamless switchover without microcontroller intervention. Use Value: 100 µA IR at 125 °C limits self-discharge to <0.1% per day, extending shelf life of sealed units. | Use Scenario: Reverse-polarity and backfeed protection for 12 V lighting loads controlled by low-side MOSFET drivers. IC Role / Device Role / Timing Role: Series protection diode on load supply line, upstream of driver IC. Use Value: 50 A IFSM withstands 12 V battery jump-start transients, preventing latch-up in downstream CAN transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR20F20HT1G | Same 20 V/2 A rating but VF = 0.52 V @ 1 A; RθJA = 135 K/W; SOD-123 package (slightly larger footprint) | Higher VF increases conduction loss by ~16% in 1 A continuous use; less thermally efficient at high ambient | Prefer SL02X where board space and thermal margin are constrained. |
| Vishay VS-2EDH02HM3/85A | 20 V/2 A, VF = 0.42 V @ 1 A, but in SMA package (4.5 × 2.7 mm); higher RθJA = 150 K/W | Lower VF offers marginal efficiency gain, but larger footprint and worse thermal performance limit high-density designs | Prefer SL02X for compact, thermally demanding layouts; choose Vishay only if SMA is already standardized. |
Compared with NSR20F20HT1G and VS-2EDH02HM3/85A, the SL02X delivers optimal balance of low VF (0.45 V), compact SOD123FL footprint, and superior thermal resistance (125 K/W), making it preferred for space-constrained 5 V power rails requiring consistent efficiency above 75 °C ambient.
Availability
SL02X is available at Aetrix Electronics and suitable for USB power delivery input protection, 5 V buck converter output rectification, and industrial sensor node battery backup paths requiring stable component supply and long-term manufacturability.
Supply support for SL02X 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, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The SL02X belongs to Nexperia's Schottky diode portfolio designed specifically for high-efficiency, low-voltage DC-DC power conversion in space- and thermally-constrained applications.
FAQ
What is the maximum junction temperature rating for SL02X?
The SL02X is rated for a maximum junction temperature (TJ) of 150 °C. This rating is validated under specified thermal conditions and must be maintained via proper PCB copper area and ambient temperature control. Derating begins at TA = 75 °C, with linear reduction to zero current at 150 °C ambient when mounted on standard JEDEC test board.
Does SL02X support lead-free reflow soldering?
Yes, SL02X is qualified for lead-free reflow soldering per JEDEC J-STD-020, with peak temperature up to 260 °C for ≤ 30 seconds. The recommended stencil thickness is 0.1 mm, and the footprint dimensions (4.4 × 2.2 mm) match standard SOD123FL land patterns published in Nexperia's package documentation.
Is SL02X suitable for reverse polarity protection in 12 V automotive circuits?
No - SL02X has a 20 V VR rating, which is insufficient for automotive 12 V systems subject to load dump transients (up to 40 V). It is appropriate only for protected 5 V or 3.3 V subsystems. For full 12 V reverse polarity protection, a 40 V or higher VR Schottky diode such as PDS340-13 is required.
How does SL02X compare to standard PN-junction diodes like 1N4007 in switching applications?
SL02X replaces 1N4007 only in low-voltage, high-frequency applications. Unlike the 1N4007 (1000 V VR, slow recovery), SL02X offers zero reverse recovery charge, 0.45 V VF, and 20 V VR - making it ideal for 5 V buck converters but unsuitable for line-powered rectification or high-voltage blocking.
SL02X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- -
- Voltage - DC Reverse (Vr) (Max):
- -
- Current - Average Rectified (Io):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -
SL02X FAQ
1.How can I place an order for SL02X through Aetrix?
Please submit a Request for Quotation (RFQ) for SL02X 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 SL02X reliable?
The price and inventory of SL02X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SL02X is usually 5 days.
3.What payment methods are accepted for SL02X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SL02X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SL02X?
SL02X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SL02X 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 SL02X?
For technical support, including SL02X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SL02X requirements.
6.How does Aetrix verify that SL02X is sourced from the original manufacturer or authorized distributors?
All SL02X 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 SL02X meets industry standards.
7.What is the process for return or replacement of SL02X?
All SL02X units undergo pre-shipment inspection (PSI). If there is an issue with SL02X, 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 SL02X part is unused and in its original packaging.
Return procedure for SL02X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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