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Nexperia USA Inc. BAT42LSYL
- Part No.:
- BAT42LSYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-882
- Datasheet:
-
BAT42LSYL.pdf
- Description:
- DIODE SCHOTTKY 40V 200MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,997
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Product details
Overview
BAT42LSYL from Nexperia is a general-purpose Schottky diode in a DFN1006BD-2 (SOD882BD) leadless SMD package with side-wettable flanks, rated for 200 mA forward current and 40 V reverse voltage, with 600 mV typical forward voltage at 200 mA and 25 °C, used for ultra-high-speed switching and low-voltage rectification in space-constrained portable electronics.
For engineers reviewing the BAT42LSYL datasheet, BAT42LSYL pinout, BAT42LSYL application, or BAT42LSYL equivalent, this page delivers verified electrical parameters, thermal resistance values, cathode-marked pin configuration, AOI-compatible packaging, and real-world use cases in protection circuits and blocking diode implementations.
Technical Context
The BAT42LSYL employs a planar Schottky barrier structure optimized for low forward voltage and fast recovery, enabling sub-10 ns reverse recovery times without minority carrier storage. Its junction-to-ambient thermal resistance is 375 K/W in free air and 205 K/W on a 1 cm² cathode pad - critical for thermal management in high-density PCB layouts.
Designed for pulsed operation (tp ≤ 300 µs, duty cycle δ ≤ 0.02), it maintains stable VF across -40 °C to 125 °C ambient, with IR ≤ 10 µA at VR = 40 V and Tamb = 25 °C, and Cd = 20 pF at VR = 1 V / 1 MHz - supporting high-frequency clamping and RF bypass applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward current (IF) | 200 mA continuous - supports compact power rail protection without heatsinking in low-power IoT nodes |
| Reverse voltage (VR) | 40 V maximum - suitable for 24 V industrial control inputs and USB-powered system clamping |
| Forward voltage (VF) | 600 mV at IF = 200 mA - reduces conduction loss by ~40% vs. standard silicon diodes in 3.3 V/5 V rails |
| Reverse current (IR) | 10 µA at VR = 40 V - ensures minimal leakage in battery-backed backup paths and signal isolation |
| Diode capacitance (Cd) | 20 pF at VR = 1 V / 1 MHz - enables effective high-frequency noise suppression in ESD-critical interfaces |
| Junction temperature (Tj) | 150 °C max - allows operation in sealed enclosures with limited airflow, such as smart sensors |
Pinout & Package
DFN1006BD-2 (SOD882BD) is a 2-terminal, leadless plastic package measuring 1.0 mm × 0.6 mm × 0.47 mm with side-wettable flanks for automated optical inspection of solder joints. The cathode is marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to lower-potential node; marking bar identifies this terminal for correct orientation during placement |
| 2 | Anode (A) | Connected to higher-potential node; current flows from Pin 2 to Pin 1 under forward bias |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1.0 mm × 0.6 mm body - saves >70% board area vs. SOD-123, enabling miniaturized wearables and hearing aids |
| Side-wettable flanks | Facilitates AOI verification of solder joint integrity - eliminates manual inspection in high-volume consumer assembly |
| Low thermal resistance | 205 K/W with 1 cm² cathode copper pad - sustains 200 mA continuous current without derating at 85 °C ambient |
| Pulsed current capability | 3 A non-repetitive peak (tp = 8 ms) - handles inrush surges in USB-C hot-swap circuits and load-switch turn-on transients |
Applications
| USB Power Path Protection | IoT Sensor Signal Clamping |
|---|---|
Use Scenario: Preventing backfeed and overvoltage damage when dual-power sources (battery + USB) share a common rail. IC Role / Device Role / Timing Role: Blocking diode isolating power domains with minimal forward drop. Use Value: 600 mV VF avoids 3.3 V rail collapse during USB insertion; 40 V VR withstands transient spikes up to ±30 V. |
Use Scenario: Limiting analog sensor output voltage to MCU ADC input range (0–3.3 V) during ESD events. IC Role / Device Role / Timing Role: Fast-clamp diode shunting excess voltage to VDD or GND. Use Value: Sub-10 ns recovery and 20 pF capacitance preserve signal integrity up to 10 MHz without loading. |
| Portable Device Battery Charging | Low-Power Microcontroller Reset Circuit |
Use Scenario: OR-ing diode in single-cell Li-ion charger path to prevent reverse current when main supply drops. IC Role / Device Role / Timing Role: Forward-biased rectifier enabling power source selection. Use Value: 200 mA rating matches typical charging IC output; 0.6 mm width fits narrow battery connector traces. |
Use Scenario: Debouncing and voltage-level translation in push-button reset circuits tied to 1.8 V or 3.3 V logic. IC Role / Device Role / Timing Role: Level-shifting clamp protecting reset pin from overvoltage during button press. Use Value: 10 µA IR prevents DC leakage that could delay reset assertion; 150 °C Tj supports reflow and operational reliability. |
Availability
BAT42LSYL is available at Aetrix Electronics and suitable for USB power path protection, IoT sensor signal clamping, and portable device battery charging requiring stable component supply across high-mix, low-volume production runs.
Supply support for BAT42LSYL 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with leadership in efficiency, miniaturization, and manufacturability.
The BAT42LSYL belongs to Nexperia's general-purpose Schottky diode product line, engineered for space-constrained, low-loss applications in consumer, computing, and industrial electronics where size, leakage, and forward voltage are critical.
FAQ
Is BAT42LSYL suitable for automotive applications?
No. BAT42LSYL is not AEC-Q200 qualified and lacks automotive-grade screening, temperature cycling validation, or extended lifetime testing. It is specified for commercial and industrial use only, with operating ambient range of -55 °C to 150 °C but no automotive qualification documentation or test reports provided by Nexperia.
What is the significance of side-wettable flanks in DFN1006BD-2?
Side-wettable flanks expose solderable metal along the vertical edges of the DFN1006BD-2 package, enabling automated optical inspection (AOI) systems to verify solder fillet formation and joint quality - a critical capability for zero-defect manufacturing in high-volume portable electronics assembly lines.
How does BAT42LSYL compare to BAT54S in footprint and performance?
BAT42LSYL uses DFN1006BD-2 (1.0 mm × 0.6 mm), while BAT54S uses SOT-323 (2.2 mm × 1.35 mm) - BAT42LSYL occupies ~75% less area. Electrically, BAT42LSYL has lower VF (600 mV vs. ~800 mV at 200 mA) and lower Cd (20 pF vs. ~40 pF), but BAT54S offers dual-diode configuration and higher VR (60 V).
Can BAT42LSYL be used in reverse-biased ESD protection?
No - BAT42LSYL is not designed or characterized for ESD protection. Its reverse breakdown is not controlled, and it lacks specified IEC 61000-4-2 ratings. For ESD clamping, dedicated TVS diodes like PESD5V0S1BA should be used; BAT42LSYL functions only as a forward-biased rectifier or clamping diode in active bias configurations.
BAT42LSYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 600 mV @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 40 V
- Capacitance @ Vr, F:
- 20pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
- Operating Temperature - Junction:
- 150°C
BAT42LSYL FAQ
1.How can I place an order for BAT42LSYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT42LSYL 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 BAT42LSYL reliable?
The price and inventory of BAT42LSYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT42LSYL is usually 5 days.
3.What payment methods are accepted for BAT42LSYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT42LSYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT42LSYL?
BAT42LSYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT42LSYL 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 BAT42LSYL?
For technical support, including BAT42LSYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT42LSYL requirements.
6.How does Aetrix verify that BAT42LSYL is sourced from the original manufacturer or authorized distributors?
All BAT42LSYL 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 BAT42LSYL meets industry standards.
7.What is the process for return or replacement of BAT42LSYL?
All BAT42LSYL units undergo pre-shipment inspection (PSI). If there is an issue with BAT42LSYL, 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 BAT42LSYL part is unused and in its original packaging.
Return procedure for BAT42LSYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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