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Nexperia USA Inc. BAS516-QX
- Part No.:
- BAS516-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BAS516-QX.pdf
- Description:
- BAS516-Q/SOD523/SC-79
- Quantity:
- Payment:
- Shipping:
Inventory:7,335
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Product details
Overview
BAS516-QX from Nexperia is a high-speed switching diode in SOD523 (SC-79) package, rated for 100 V repetitive peak reverse voltage, 4 ns reverse recovery time, and qualified to AEC-Q101 for automotive use. It serves as a fast unidirectional current switch in signal routing, clamping, and protection circuits within infotainment power supplies and body control modules.
For engineers reviewing the BAS516-QX datasheet, BAS516-QX pinout, BAS516-QX application, or BAS516-QX equivalent, key selection criteria include trr ≤ 4 ns at IF = 10 mA, VR = 100 V, IR ≤ 0.5 µA at VR = 80 V, and thermal resistance Rth(j-sp) = 120 K/W - all critical for high-frequency switching integrity and thermal reliability in space-constrained automotive PCBs.
Technical Context
The BAS516-QX employs a planar epitaxial silicon structure optimized for low charge storage and minimal minority carrier lifetime, enabling sub-4 ns reverse recovery under standardized test conditions (IF = 10 mA, IR = 10 mA, RL = 100 Ω, IR(meas) = 1 mA). Its junction temperature rating of 150 °C supports operation in under-hood environments.
Designed for surface-mount reflow assembly on FR4 PCBs with single-sided copper, the device delivers 500 mW total power dissipation at solder point temperature ≤ 90 °C and exhibits 1 pF capacitance at VR = 0 V / f = 1 MHz - essential for RF-sensitive signal path isolation and EMI suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VRRM) | 100 V - supports 48 V automotive systems with 2× safety margin against transients |
| Reverse Recovery Time (trr) | 4 ns - enables reliable switching up to ~85 MHz in pulse shaping and sample-and-hold circuits |
| Forward Voltage (VF) | 855 mV @ IF = 10 mA - minimizes conduction loss in low-voltage logic-level clamping |
| Reverse Leakage (IR) | 0.5 µA @ VR = 80 V, 25 °C - ensures stable biasing in high-impedance sensor interfaces |
| Diode Capacitance (Cd) | 1 pF @ VR = 0 V, 1 MHz - preserves signal edge fidelity in >1 GHz RF detector front-ends |
| Junction-to-Solder Point Rth | 120 K/W - allows direct thermal coupling to cathode pad for localized heat extraction |
| Package | SOD523 (SC-79), 1.2 × 0.8 × 0.6 mm - fits 0201 footprint constraints in ADAS camera modules |
Pinout & Package
Encapsulated in ultra-small SOD523 (SC-79) plastic SMD package with 2 leads, 1.2 mm × 0.8 mm × 0.6 mm body dimensions and tin-plated terminations compatible with lead-free reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Primary heat path: soldered directly to PCB copper pour for thermal management; polarity reference for reverse-biased protection |
| 2 | Anode (A) | Current entry point during forward conduction; connects to source-side rail in clamp or OR-ing configurations |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22-A114 |
| Low trr with controlled tail | 4 ns recovery with minimal current tail ensures clean switching edges in PWM gate drivers |
| Ultra-low Cd | 1 pF capacitance prevents signal loading in high-Z analog multiplexer outputs |
| Low IR across temperature | ≤ 50 µA at VR = 80 V / Tj = 150 °C maintains accuracy in battery monitoring dividers |
Applications
| Automotive Infotainment Power Sequencing | ADAS Camera Signal Clamping |
|---|---|
Use Scenario: Isolating 5 V/3.3 V domain power rails during cold-cranking transients in head unit MCU subsystems. IC Role / Device Role / Timing Role: High-speed OR-ing diode preventing backfeed while sustaining <4 ns turn-off to avoid rail collapse during microsecond-scale voltage dips. Use Value: Enables deterministic power-up sequencing without external controllers, reducing BOM count by one discrete IC. |
Use Scenario: Protecting CMOS image sensor I/O pins from ESD and overvoltage during hot-plug insertion in surround-view systems. IC Role / Device Role / Timing Role: Low-capacitance clamping diode shunting transients to ground before they exceed 1.2 V absolute max rating. Use Value: 1 pF Cd preserves >100 MHz video bandwidth; AEC-Q101 rating ensures field durability beyond 10,000 mating cycles. |
| Body Control Module Logic-Level Translation | Electric Power Steering (EPS) Gate Driver Protection |
Use Scenario: Level-shifting 12 V wake-up signals to 3.3 V microcontroller GPIOs in door module ECUs. IC Role / Device Role / Timing Role: Fast-switching interface diode blocking reverse leakage while passing <100 ns pulses with <10 mV droop. Use Value: 0.5 µA IR at 80 V eliminates false wake-ups; SOD523 footprint saves 60% board area vs. SOT23 alternatives. |
Use Scenario: Snubbing Miller-induced spikes on high-side N-channel MOSFET gates in EPS motor drivers. IC Role / Device Role / Timing Role: Reverse-biased recovery diode absorbing gate charge during rapid dV/dt transitions. Use Value: 4 ns trr limits spike duration to <5 ns, preventing unintended gate turn-on and phase current imbalance. |
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 NSVRBAS516WT1G | Identical SOD523 package, trr = 4 ns, but VF = 950 mV @ 10 mA (100 mV higher); AEC-Q101 qualified | Higher forward drop increases conduction loss in battery-powered modules with tight efficiency budgets | Select when second-source assurance is required and VF tolerance > 900 mV is acceptable |
| Vishay VS-2EDH02HM3/85A | SOD-323 package (1.7 × 1.25 mm), trr = 3.5 ns, VR = 100 V, but not AEC-Q101 qualified | Larger footprint and non-automotive qualification limit use to industrial/commercial designs only | Choose for non-automotive applications needing marginally faster recovery and higher surge current (IFSM = 4 A) |
Compared with NSVRBAS516WT1G and VS-2EDH02HM3/85A, the BAS516-QX provides optimal balance of automotive qualification, ultra-small footprint, and lowest VF among AEC-Q101–compliant 4 ns diodes - making it preferred for space- and efficiency-critical vehicle networks.
Availability
BAS516-QX is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and body control units requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for BAS516-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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The BAS516-QX belongs to Nexperia's AEC-Q101–qualified high-speed diode product line, engineered specifically for robust signal integrity and thermal performance in automotive power management and interface protection circuits.
FAQ
Is BAS516-QX suitable for 48 V mild-hybrid vehicle architectures?
Yes. With VRRM = 100 V and AEC-Q101 qualification, the BAS516-QX supports 48 V system transients up to ±80 V per ISO 7637-2 Pulse 5a/b. Its 150 °C junction rating and 120 K/W thermal resistance ensure stable operation under hood temperatures exceeding 105 °C ambient.
What is the maximum allowable soldering temperature profile for BAS516-QX?
The device complies with JEDEC J-STD-020D for MSL1 handling. Peak reflow temperature must not exceed 260 °C for ≤ 30 seconds, with ramp rates ≤ 3 °C/s pre-peak and ≤ 6 °C/s post-peak. The cathode tab must be thermally anchored to ≥ 25 mm² copper pour for thermal compliance.
Does BAS516-QX support bidirectional ESD protection?
No. As a unidirectional diode, BAS516-QX provides clamping only in reverse bias (cathode to positive rail). For bidirectional protection, it must be paired with a second diode anode-to-rail. Its 1 pF capacitance and 4 ns trr make it ideal for the high-side leg in such dual-diode TVS configurations.
How does BAS516-QX perform under high-temperature reverse bias stress?
At VR = 80 V and Tj = 150 °C, IR remains ≤ 50 µA (per datasheet Table 7), confirming stable leakage behavior. This enables reliable use in battery monitoring dividers where drift must stay below 0.1% error over full automotive temperature range (-40 °C to 150 °C).
BAS516-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 150 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 500 nA @ 80 V
- Capacitance @ Vr, F:
- 1pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
- Operating Temperature - Junction:
- 150°C
BAS516-QX FAQ
1.How can I place an order for BAS516-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS516-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 BAS516-QX reliable?
The price and inventory of BAS516-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS516-QX is usually 5 days.
3.What payment methods are accepted for BAS516-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS516-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS516-QX?
BAS516-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS516-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 BAS516-QX?
For technical support, including BAS516-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS516-QX requirements.
6.How does Aetrix verify that BAS516-QX is sourced from the original manufacturer or authorized distributors?
All BAS516-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 BAS516-QX meets industry standards.
7.What is the process for return or replacement of BAS516-QX?
All BAS516-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAS516-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 BAS516-QX part is unused and in its original packaging.
Return procedure for BAS516-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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