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Nexperia USA Inc. BAS70LSYL
- Part No.:
- BAS70LSYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-882
- Datasheet:
-
BAS70LSYL.pdf
- Description:
- DIODE SCHOTTKY 70V 70MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,087
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Product details
Overview
BAS70LSYL from Nexperia is a general-purpose Schottky diode in a DFN1006BD-2 (SOD882BD) leadless ultra-small surface-mount package with side-wettable flanks. It delivers 70 V reverse voltage rating, 70 mA forward current capability, and low 410 mV forward voltage at 1 mA pulsed conditions-enabling efficient voltage clamping and ultra-high-speed switching in space-constrained DC-DC converter feedback paths and signal line protection circuits.
For engineers reviewing the BAS70LSYL datasheet, BAS70LSYL pinout, BAS70LSYL application, or BAS70LSYL equivalent, key selection criteria include its 2 pF capacitance at 0 V, 100 nA reverse leakage at 50 V, side-wettable flank geometry for AOI-compatible solder joint inspection, and thermal resistance of 360 K/W (free air), critical for high-density portable power management layouts.
Technical Context
The BAS70LSYL employs a planar Schottky barrier structure optimized for low forward voltage and fast recovery-achieving sub-1 ns reverse recovery time due to majority-carrier conduction and absence of minority-carrier storage delay. Its junction temperature is rated to 150 °C, supporting operation in thermally demanding environments such as automotive body control modules and industrial sensor interfaces.
Designed for reflow-soldered PCB assembly, the device uses a 1.0 mm × 0.6 mm × 0.47 mm DFN1006BD-2 footprint with 0.65 mm pitch and cathode-marked top-side bar. Thermal performance is characterized under two mounting conditions: standard FR4 footprint (Rth(j-a) = 360 K/W) and enhanced 1 cm² cathode pad (Rth(j-a) = 195 K/W), enabling thermal-aware layout partitioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 70 V - supports input rail clamping up to 48 V systems with margin against transients |
| Forward Current (IF) | 70 mA continuous - sufficient for bias networks, level-shifting, and low-power signal routing |
| Forward Voltage (VF) | 410 mV @ 1 mA pulsed - minimizes conduction loss in low-current sensing and reference paths |
| Reverse Leakage (IR) | 100 nA @ 50 V, 25 °C - ensures negligible standby current in battery-backed circuits |
| Capacitance (Cd) | 2 pF @ 0 V, 1 MHz - preserves signal integrity in >500 MHz RF detector and high-speed logic clamp applications |
| Package | DFN1006BD-2 (SOD882BD) - 0.65 mm pitch, side-wettable flanks enable automated optical solder-joint inspection |
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 reliable reflow soldering and AOI compatibility. 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 polarity-critical placement |
| 2 | Anode (A) | Connected to higher-potential node; forms forward-biased path when A > K by ≥410 mV |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | Sub-1 ns reverse recovery enables use in >1 GHz signal clamping without distortion |
| Low capacitance | 2 pF at zero bias maintains bandwidth in RF detector and high-frequency logic interface circuits |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints-critical for Class III reliability manufacturing |
| Low forward voltage | 410 mV @ 1 mA reduces power loss in precision analog bias networks and low-voltage reference paths |
Applications
| DC-DC Converter Feedback Path | USB Data Line ESD Clamp |
|---|---|
Use Scenario: Clamping feedback resistor divider nodes in buck converters operating at 2–3 MHz switching frequency. IC Role / Device Role / Timing Role: Schottky diode providing low-VF, low-Cd overvoltage protection to error amplifier inputs. Use Value: 2 pF capacitance avoids phase shift in feedback loop; 410 mV VF prevents false regulation during transient events. |
Use Scenario: Bidirectional ESD protection on USB 2.0 D+ and D− lines in portable medical devices. IC Role / Device Role / Timing Role: Low-capacitance shunt diode clamping data lines to VCC and GND during ±8 kV HBM events. Use Value: 2 pF capacitance preserves signal rise/fall times; side-wettable flanks ensure AOI-verified solder joints for field-reliability-critical designs. |
| Low-Power Sensor Bias Network | High-Speed Logic Level Shifter |
Use Scenario: Providing stable bias current to MEMS pressure sensor bridges powered from 3.3 V rails in battery-operated IoT nodes. IC Role / Device Role / Timing Role: Forward-biased Schottky used as precision current source element in constant-current bias topology. Use Value: 100 nA reverse leakage prevents discharge of decoupling capacitors; 70 mA IF rating accommodates startup surges. |
Use Scenario: Translating 1.8 V logic signals to 3.3 V domain in FPGA configuration interfaces with <5 ns timing budget. IC Role / Device Role / Timing Role: Anode-to-1.8 V, cathode-to-3.3 V connection enabling passive level translation via forward conduction. Use Value: Sub-1 ns recovery eliminates hold-time violations; 70 V VR withstands overshoot during hot-plug events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB521S-40T1G (ON Semiconductor) | 40 V VR, 200 mA IF, 370 mV VF @ 1 mA, SOD-523 package (1.2 × 0.8 mm) | Lower voltage rating limits use in 48 V systems; larger footprint increases board area by 67% | Select when higher forward current is required and system VR ≤ 40 V; verify AOI compatibility-no side-wettable flanks specified |
| SD103ATW-7-F (Diodes Inc.) | 30 V VR, 200 mA IF, 420 mV VF @ 10 mA, SOD-323 package (1.7 × 1.3 mm) | Halved reverse voltage and 3× larger footprint restrict use to low-voltage consumer electronics | Prefer only for cost-sensitive, non-AOI production where 30 V margin suffices and board space is unconstrained |
Compared with RB521S-40T1G and SD103ATW-7-F, the BAS70LSYL uniquely combines 70 V standoff, ultra-small DFN1006BD-2 size, side-wettable flanks, and 2 pF capacitance-making it the only option qualified for AOI-monitored, space-limited, and 48 V-class industrial power signal conditioning.
Availability
BAS70LSYL is available at Aetrix Electronics and suitable for DC-DC converter feedback paths, USB data line ESD clamps, and low-power sensor bias networks requiring stable component supply across extended product lifecycles.
Supply support for BAS70LSYL 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, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
The BAS70LSYL belongs to Nexperia's general-purpose Schottky diode portfolio, engineered for miniaturized, AOI-compatible power and signal integrity applications in space- and reliability-constrained designs.
FAQ
What is the maximum junction temperature for BAS70LSYL?
The absolute maximum junction temperature is 150 °C, as defined in IEC 60134 limiting values. This rating applies under continuous operation with ambient temperature up to 150 °C or pulsed conditions meeting specified duty cycle and pulse width limits. Thermal derating is required above 25 °C ambient per the Rth(j-a) curves in the datasheet.
Does BAS70LSYL support automated optical inspection (AOI)?
Yes-its DFN1006BD-2 package features side-wettable flanks specifically designed for reliable solder-joint inspection using standard AOI systems. The cathode marking bar on the top surface further enables polarity verification during automated placement and post-reflow inspection.
What is the reverse recovery time of BAS70LSYL?
The datasheet does not specify a measured reverse recovery time (trr), but as a Schottky diode with majority-carrier conduction, its recovery is effectively instantaneous-typically sub-1 ns. This is confirmed by its 2 pF capacitance and absence of minority-carrier storage delay, making it suitable for >500 MHz signal clamping.
Can BAS70LSYL replace BAS70-04 in existing designs?
No-BAS70-04 is a quad-Schottky array in SOT-363, while BAS70LSYL is a single-diode DFN1006BD-2. Pin count, package, thermal behavior, and electrical parameters differ significantly. Direct replacement requires layout redesign and validation of forward voltage, capacitance, and thermal performance in the target application.
BAS70LSYL 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):
- 70 V
- Current - Average Rectified (Io):
- 70mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 15 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 70 V
- Capacitance @ Vr, F:
- 2pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
- Operating Temperature - Junction:
- 150°C
BAS70LSYL FAQ
1.How can I place an order for BAS70LSYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70LSYL 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 BAS70LSYL reliable?
The price and inventory of BAS70LSYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70LSYL is usually 5 days.
3.What payment methods are accepted for BAS70LSYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70LSYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70LSYL?
BAS70LSYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70LSYL 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 BAS70LSYL?
For technical support, including BAS70LSYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70LSYL requirements.
6.How does Aetrix verify that BAS70LSYL is sourced from the original manufacturer or authorized distributors?
All BAS70LSYL 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 BAS70LSYL meets industry standards.
7.What is the process for return or replacement of BAS70LSYL?
All BAS70LSYL units undergo pre-shipment inspection (PSI). If there is an issue with BAS70LSYL, 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 BAS70LSYL part is unused and in its original packaging.
Return procedure for BAS70LSYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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