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Nexperia USA Inc. BAS16W-QX
- Part No.:
- BAS16W-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS16W-QX.pdf
- Description:
- BAS16W-Q/SOT323/SC-70
- Quantity:
- Payment:
- Shipping:
Inventory:8,501
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Product details
Overview
BAS16W-QX from Nexperia is a high-speed switching diode in SOT323 (SC-70) package, rated for 100 V repetitive peak reverse voltage, 4 ns reverse recovery time, and 175 mA DC forward current. It serves as a fast-switching signal path component in automotive power management and interface circuits where low capacitance (1.5 pF) and low leakage (<0.5 µA at 80 V) are critical.
For engineers reviewing the BAS16W-QX datasheet, BAS16W-QX pinout, BAS16W-QX application, or BAS16W-QX equivalent, key selection criteria include trr ≤ 4 ns, VR = 100 V, AEC-Q101 qualification, SOT323 footprint compatibility, and anode/cathode/no-connect terminal configuration.
Technical Context
This discrete silicon switching diode uses a planar epitaxial construction optimized for rapid carrier recombination, enabling sub-4 ns reverse recovery under IF = IR = 10 mA test conditions with 100 Ω load. Its junction-to-ambient thermal resistance is 625 K/W on FR4 PCB, supporting operation up to 150 °C junction temperature.
The device features a single-diode structure with Pin 1 = anode, Pin 2 = not connected, Pin 3 = cathode - confirmed by Nexperia's official pinning diagram and SC-70 mechanical outline. No internal series resistor or integrated protection circuitry is present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR / VRRM | 100 V - maximum continuous and repetitive reverse blocking voltage; defines safe operating range in clamping and flyback paths |
| trr | 4 ns - measured at IF = IR = 10 mA, RL = 100 Ω; enables >100 MHz switching in digital logic and data line protection |
| IR @ 80 V | 0.5 µA at 25 °C - ultra-low leakage preserves signal integrity in high-impedance bias networks |
| Cd @ 0 V | 1.5 pF at 1 MHz - minimizes capacitive loading on high-frequency signal lines and clock distribution paths |
| VF @ 10 mA | 855 mV - low forward drop reduces conduction loss in level-shifting and OR-ing applications |
| Ptot | 200 mW at Tamb ≤ 25 °C - sets practical power handling limit for continuous operation without heatsinking |
Pinout & Package
Package: SOT323 (SC-70), 3-terminal surface-mount plastic package measuring 2.0 mm × 1.25 mm × 0.95 mm with 1.3 mm lead pitch and standard FR4 reflow footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connects to higher-potential node in rectification or clamping configurations |
| 2 | Not Connected (n.c.) | Internally unconnected metal trace; must remain floating - no PCB trace or solder mask bridge permitted |
| 3 | Cathode (K) | Forward current exit point; ties to lower-potential node or ground reference in switching paths |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards |
| trr ≤ 4 ns | Enables clean edge transitions in 50–100 MHz digital signal routing and pulse shaping circuits |
| Low Cd = 1.5 pF | Reduces signal distortion and crosstalk in high-speed data bus termination and ESD protection networks |
| IF = 175 mA DC rating | Supports sustained current in low-power logic-level translation and microcontroller I/O protection |
| VR = 100 V with low IR | Permits use in 48 V automotive subsystems and industrial 24/48 V supply rail monitoring without derating |
Applications
| Automotive CAN Transceiver Protection | USB 2.0 Data Line Clamping |
|---|---|
|
Use Scenario: Placed across CAN_H/CAN_L differential pair to suppress ESD transients and inductive spikes during bus arbitration. IC Role / Device Role: Fast-switching clamp diode absorbing ±15 kV HBM ESD events while maintaining <1.5 pF parasitic capacitance. Use Value: Prevents false triggering and latch-up in ISO 11898-2 compliant transceivers without degrading 1 Mbps signal rise/fall times. |
Use Scenario: Integrated into USB 2.0 upstream port D+ and D− lines to shunt ESD energy before reaching the PHY IC. IC Role / Device Role: Low-capacitance bidirectional clamping element meeting IEC 61000-4-2 Level 4 requirements. Use Value: Maintains signal integrity at 480 Mbps by limiting added capacitance to ≤1.5 pF per line and responding within 4 ns. |
| Microcontroller GPIO Level Shifting | Industrial Sensor Signal Conditioning |
|
Use Scenario: Used in passive OR-ing configuration between 3.3 V MCU I/O and 5 V peripheral control lines. IC Role / Device Role: Unidirectional isolation diode enabling voltage domain bridging without backfeed. Use Value: Delivers 855 mV VF at 10 mA to minimize logic-high voltage drop while supporting 175 mA peak drive capability. |
Use Scenario: Mounted at analog sensor output stage to block reverse leakage current in 4–20 mA loop-powered transmitters. IC Role / Device Role: Reverse-biased blocking diode ensuring <0.5 µA leakage at 80 V ambient temperature extremes. Use Value: Preserves 16-bit measurement accuracy over –40 °C to +125 °C ambient by eliminating thermally induced offset drift. |
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 MMBD1201LT1G | trr = 3.5 ns (typ), VR = 100 V, but VF = 1.1 V @ 10 mA - 29% higher forward drop | Higher VF increases power loss in battery-powered sensor nodes; same SOT-23-3 footprint | Select when absolute minimum trr is prioritized over forward efficiency in pulsed applications |
| Vishay SMBD1600T1G | trr = 4 ns (max), VR = 80 V, IR = 0.1 µA @ 75 V - lower reverse rating, tighter leakage spec | Not suitable for 48 V automotive systems requiring 100 V VR margin; better for precision analog guard rings | Prefer where ultra-low leakage dominates over voltage headroom, e.g., high-Z instrumentation front ends |
Compared with MMBD1201LT1G and SMBD1600T1G, BAS16W-QX delivers balanced performance: 4 ns trr with 855 mV VF and full 100 V VR rating - making it optimal for automotive and industrial designs needing both speed and robustness without footprint change.
Availability
BAS16W-QX is available at Aetrix Electronics and suitable for automotive infotainment power sequencing, USB 2.0 interface protection, and industrial 4–20 mA transmitter designs requiring stable component supply and AEC-Q101 compliance.
Supply support for BAS16W-QX 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 essential semiconductors for automotive, industrial, mobile, and computing markets.
The BAS16W-QX belongs to Nexperia's AEC-Q101-qualified high-speed switching diode product line, engineered specifically for automotive signal integrity and transient suppression in harsh environments.
FAQ
Is BAS16W-QX pin-compatible with BAS16 or BAS21 diodes?
No. BAS16W-QX uses SOT323 (3-pin, n.c. on Pin 2), whereas BAS16 is in SOT23 (3-pin, all connected) and BAS21 is in SOD-123 (2-pin). Pin mapping, thermal pad layout, and package dimensions differ - direct substitution requires PCB redesign.
What is the maximum allowable PCB trace width for the n.c. pin (Pin 2)?
Pin 2 must remain electrically isolated: no copper trace, solder mask opening, or thermal relief should contact it. The recommended land pattern (per Fig. 8) specifies 0.55 mm solder paste aperture and zero connectivity - any trace coupling risks parasitic coupling or assembly shorts.
Does BAS16W-QX support wave soldering?
Yes. Nexperia provides dedicated wave soldering footprint (Fig. 9) with 1.425 mm × 0.9 mm lands and preferred transport direction alignment. Peak temperature must not exceed 260 °C for ≤5 s, and flux residue must be compatible with halogen-free cleaning processes.
How does thermal resistance change when mounted on 2-layer vs. 4-layer PCB?
Rth(j-a) improves from 625 K/W (FR4, 1-layer copper) to ~350 K/W on 4-layer boards with inner ground/power planes and thermal vias. Rth(j-sp) remains ~300 K/W regardless of layer count, as it reflects die-to-solder-joint conduction, not board-level dissipation.
BAS16W-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 175mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 150 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 500 nA @ 80 V
- Capacitance @ Vr, F:
- 1.5pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
- Operating Temperature - Junction:
- 150°C
BAS16W-QX FAQ
1.How can I place an order for BAS16W-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS16W-QX 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 BAS16W-QX reliable?
The price and inventory of BAS16W-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS16W-QX is usually 5 days.
3.What payment methods are accepted for BAS16W-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS16W-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS16W-QX?
BAS16W-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS16W-QX 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 BAS16W-QX?
For technical support, including BAS16W-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS16W-QX requirements.
6.How does Aetrix verify that BAS16W-QX is sourced from the original manufacturer or authorized distributors?
All BAS16W-QX 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 BAS16W-QX meets industry standards.
7.What is the process for return or replacement of BAS16W-QX?
All BAS16W-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAS16W-QX, 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 BAS16W-QX part is unused and in its original packaging.
Return procedure for BAS16W-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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