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Nexperia USA Inc. BAS21LS-QYL
- Part No.:
- BAS21LS-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-882
- Datasheet:
-
BAS21LS-QYL.pdf
- Description:
- DIODE GP 200V 250MA DFN1006BD-2
- Quantity:
- Payment:
- Shipping:
Inventory:8,924
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Product details
Overview
BAS21LS-QYL from Nexperia is a high-speed switching diode in a leadless DFN1006BD-2 (SOD882BD) package, rated for 200 V reverse voltage, 250 mA forward current, and 50 ns reverse recovery time, with 2 pF capacitance and 100 nA leakage at 200 V - used in automotive-grade voltage clamping and reverse polarity protection circuits.
For engineers reviewing the BAS21LS-QYL datasheet, BAS21LS-QYL pinout, BAS21LS-QYL application, or BAS21LS-QYL equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance values, side-wettable flank geometry, and AOI-compatible packaging details essential for automotive PCB layout and reliability validation.
Technical Context
This discrete silicon switching diode employs a planar epitaxial construction optimized for fast turn-off in high-frequency DC-DC converters and ESD-critical signal lines. Its low trr (≤50 ns) and low Cd (≤2 pF) enable clean transient response in clamp circuits operating up to several MHz.
The device is qualified to AEC-Q101 with guaranteed operation from −55 °C to +150 °C junction temperature and features side-wettable flanks for automated optical inspection of solder joints on FR4 PCBs with standard 0.65 mm pitch footprints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VRRM) | 250 V peak - supports robust overvoltage clamping in 24 V automotive systems without breakdown. |
| Forward Current (IF) | 250 mA continuous - sufficient for signal-level switching and low-power rail protection. |
| Reverse Recovery Time (trr) | 50 ns max - enables reliable operation in >1 MHz switching nodes without excessive switching loss. |
| Diode Capacitance (Cd) | 2 pF at 0 V - minimizes signal distortion and loading in high-impedance analog or RF-adjacent paths. |
| Reverse Leakage (IR) | 100 nA at 200 V, 25 °C - ensures negligible standby power loss in battery-sensitive applications. |
| Thermal Resistance (Rth(j-a)) | 375 K/W on standard FR4 - defines derating curve for ambient temperatures above 70 °C. |
| Package | DFN1006BD-2 (SOD882BD), 1.0 × 0.6 × 0.47 mm - ultra-small footprint with side-wettable flanks for AOI-capable reflow assembly. |
Pinout & Package
Encapsulated in a leadless DFN1006BD-2 (SOD882BD) plastic package with side-wettable flanks, cathode marked on top surface; dimensions: 1.0 mm × 0.6 mm × 0.47 mm, 0.65 mm pitch, compatible with IPC-7351B standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to higher-potential node during reverse bias; marking side on top surface identifies this terminal. |
| 2 | Anode (A) | Connected to lower-potential node; forward conduction occurs when A is ≥0.7 V above K. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood and infotainment applications per stress test requirements for discrete semiconductors. |
| Side-wettable flanks | Enables automated optical inspection of solder fillet integrity on both lateral edges - critical for zero-defect automotive manufacturing. |
| Ultra-low capacitance | 2 pF at 0 V reverse bias - preserves signal edge rate in high-speed data lines and reduces crosstalk in dense routing. |
| Low leakage at high temperature | 100 µA max at VR = 200 V and Tj = 150 °C - maintains clamping effectiveness in hot under-hood environments. |
| High VRRM/VR margin | 250 V repetitive peak rating exceeds 200 V DC blocking requirement - provides 25 % safety margin against transients. |
Applications
| Automotive Reverse Polarity Protection | High-Speed Signal Clamping |
|---|---|
Use Scenario: Protecting 12 V/24 V ECUs from battery misconnection during service or assembly. IC Role / Device Role / Timing Role: Discrete series diode placed between battery input and system ground return path. Use Value: Blocks reverse current flow while adding <1.25 V forward drop at 200 mA - avoids fuse blowout and preserves downstream regulator input range. |
Use Scenario: Limiting voltage excursions on CAN FD or LIN bus lines exposed to ESD or load dump. IC Role / Device Role / Timing Role: Shunt diode tied between signal line and local ground or supply rail. Use Value: Responds within 50 ns to clamp transients up to 250 V peak without distorting 2+ Mbps data edges due to 2 pF capacitance. |
| DC-DC Converter Snubber | Low-Power Logic-Level Translation |
Use Scenario: Suppressing voltage spikes across synchronous rectifier MOSFETs in buck converters operating at 500 kHz–2 MHz. IC Role / Device Role / Timing Role: Fast-recovery diode in RCD snubber network across primary-side switch. Use Value: Low trr prevents reverse recovery oscillation; 250 V rating withstands reflected flyback voltages in 24 V input designs. |
Use Scenario: Level-shifting GPIO signals between 3.3 V microcontrollers and 5 V peripherals in body control modules. IC Role / Device Role / Timing Role: Passive open-drain pull-up diode enabling bidirectional logic translation. Use Value: 100 nA leakage at 200 V ensures no measurable DC loading on 3.3 V rails; 1.1 V VF at 100 mA supports clean logic thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSVRBAS21WT1G | Same DFN1006BD-2 package, but rated for 250 V VRRM and 100 ns trr; 3 pF Cd. | Higher voltage margin but slower recovery - suitable where speed is secondary to clamping headroom. | Select when VRRM > 250 V is required and trr > 50 ns is acceptable in the target circuit. |
| Vishay VS-2EDH02-M3/84A | SOD-523 package (1.2 × 0.8 mm), 200 V VR, 150 mA IF, 4 ns trr, 1.5 pF Cd. | Smaller trr and Cd, but lower current rating and non-AEC-Q101 qualified. | Choose only for non-automotive, ultra-high-speed (<10 MHz) signal paths where 150 mA IF suffices. |
Compared with NSVRBAS21WT1G and VS-2EDH02-M3/84A, BAS21LS-QYL uniquely balances AEC-Q101 compliance, 50 ns speed, 250 mA current, and side-wettable flanks - making it the only option qualified for automated optical inspection in production automotive PCBAs requiring both reliability and manufacturability.
Availability
BAS21LS-QYL is available at Aetrix Electronics and suitable for automotive reverse polarity protection, high-speed signal clamping, and DC-DC converter snubber circuits requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for BAS21LS-QYL 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 components and advanced packaging technologies.
BAS21LS-QYL belongs to Nexperia's AEC-Q101-qualified high-speed switching diode product line, engineered specifically for automotive signal integrity, power rail protection, and space-constrained PCB layouts demanding AOI compatibility.
FAQ
Is BAS21LS-QYL pin-compatible with BAS21LT?
No. BAS21LS-QYL uses the DFN1006BD-2 (SOD882BD) package with side-wettable flanks and a 0.65 mm pitch, whereas BAS21LT is in SOT-23 with 2.3 mm pitch and three terminals. The pin count, footprint, and thermal performance differ fundamentally - direct substitution requires PCB redesign.
What is the maximum allowable PCB copper area for thermal relief at 250 mA continuous?
At 250 mA continuous forward current, junction temperature rise is limited by Rth(j-a) = 375 K/W on standard FR4. To maintain Tj ≤125 °C at 70 °C ambient, the effective thermal pad must reduce Rth(j-a) to ≤220 K/W - achieved using a 1 cm² cathode-side copper pour with 70 µm thickness and tin plating, per datasheet condition [2].
Does BAS21LS-QYL support reflow soldering per JEDEC J-STD-020?
Yes. The DFN1006BD-2 package is qualified for lead-free reflow per JEDEC J-STD-020D, with peak temperature up to 260 °C for ≤30 seconds. The side-wettable flanks are designed to meet IPC-A-610 Class 3 solder fillet criteria when using the recommended footprint (Fig. 10) and standard stencil aperture design.
Can BAS21LS-QYL be used in place of a Schottky diode for 3.3 V rail clamping?
Only if reverse recovery behavior is acceptable. Unlike Schottky diodes (zero trr), BAS21LS-QYL has 50 ns trr - which may cause brief reverse conduction during fast transitions. For 3.3 V rail clamping where speed is critical, a Schottky like PMEG2005AEJ offers lower VF and no recovery tail, but lacks AEC-Q101 qualification and 200 V rating.
BAS21LS-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 200 V
- Capacitance @ Vr, F:
- 2pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
- Operating Temperature - Junction:
- 150°C
BAS21LS-QYL FAQ
1.How can I place an order for BAS21LS-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS21LS-QYL 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 BAS21LS-QYL reliable?
The price and inventory of BAS21LS-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS21LS-QYL is usually 5 days.
3.What payment methods are accepted for BAS21LS-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS21LS-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS21LS-QYL?
BAS21LS-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS21LS-QYL 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 BAS21LS-QYL?
For technical support, including BAS21LS-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS21LS-QYL requirements.
6.How does Aetrix verify that BAS21LS-QYL is sourced from the original manufacturer or authorized distributors?
All BAS21LS-QYL 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 BAS21LS-QYL meets industry standards.
7.What is the process for return or replacement of BAS21LS-QYL?
All BAS21LS-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BAS21LS-QYL, 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 BAS21LS-QYL part is unused and in its original packaging.
Return procedure for BAS21LS-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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