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onsemi NSQA6V8AW5T2G
- Part No.:
- NSQA6V8AW5T2G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NSQA6V8AW5T2G.pdf
- Description:
- TVS DIODE 5VWM 13VC SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:31,470
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Product details
Overview
NSQA6V8AW5T2G from onsemi is a unidirectional ESD protection diode array designed for CAN/LIN bus line protection. It features a 5 V standoff voltage, 13 V clamping voltage at 1.6 A peak pulse current, <1 µA reverse leakage at 5 V, 12–15 pF junction capacitance (0 V bias), and operates from −40 °C to +125 °C in SC-88A package. It delivers IEC 61000-4-2 Level 4 (±8 kV contact) ESD protection for automotive and industrial serial interfaces.
For engineers reviewing the NSQA6V8AW5T2G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage under IEC 61000-4-2 stress, low capacitance for high-speed bus integrity, unidirectional configuration matching CAN/LIN polarity, and SC-88A footprint compatibility with space-constrained PCB layouts.
Technical Context
This device integrates four independent unidirectional ESD protection diodes in a single SC-88A (SOT-353) package. Each channel provides bidirectional surge suppression via internal Zener-based clamping architecture optimized for transient overvoltage events on low-voltage data lines.
It supports CAN/LIN physical layer compliance by maintaining signal integrity through low 6.7–9.5 pF capacitance at 3 V bias and fast response to ESD pulses per IEC 61000-4-2, with clamping voltage measured directly across the diode during full waveform capture-not inferred from peak current alone.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage | 5 V - Ensures no conduction during normal CAN/LIN bus operation (typically 0–5 V differential) |
| Clamping Voltage | 13 V @ 1.6 A - Limits transient voltage to safe level for downstream transceivers during 8/20 µs surges |
| ESD Rating | ±8 kV contact per IEC 61000-4-2 Level 4 - Meets automotive and industrial immunity requirements |
| Junction Capacitance | 12–15 pF @ 0 V - Minimizes signal distortion on 125 kbps–1 Mbps CAN buses |
| Leakage Current | <1 µA @ 5 V - Prevents measurable DC loading on bias-sensitive LIN receivers |
| Operating Temp | −40 °C to +125 °C - Supports under-hood and industrial control environment deployment |
| Package | SC-88A (SOT-353) - 5-pin, 2.1 × 1.25 mm footprint for high-density routing near connectors |
Pinout & Package
NSQA6V8AW5T2G uses the SC-88A (SOT-353) surface-mount package with 5 terminals. Pin assignment follows Style 5: Pin 1 = Cathode, Pin 2 = Common Anode, Pin 3 = Cathode 2, Pin 4 = Cathode 3, Pin 5 = Cathode 4 - enabling four independent unidirectional protection paths sharing one anode node.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 | Output terminal for protected line 1; connects to CAN_H or LIN bus trace |
| 2 | Common Anode | Shared ground reference for all four diodes; ties to system GND or chassis |
| 3 | Cathode 2 | Output terminal for protected line 2; used for CAN_L or secondary LIN line |
| 4 | Cathode 3 | Output terminal for protected line 3; supports multi-line systems like LIN clusters |
| 5 | Cathode 4 | Output terminal for protected line 4; enables compact protection of quad-channel interfaces |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional 4-channel array | Enables discrete protection of four separate low-voltage data lines without cross-talk or shared cathode impedance |
| Low 13 V clamping at 1.6 A | Prevents damage to 5 V-tolerant CAN/LIN transceivers during ISO 7637-2 pulse 1/2a/3a events |
| 6.7–9.5 pF capacitance at 3 V bias | Maintains signal rise/fall time integrity on 125 kbps–1 Mbps buses without edge degradation |
| SC-88A footprint | Reduces board area by >60% versus four discrete SOD-323 diodes while preserving thermal performance |
| Pb-free & RoHS compliant | Meets EU Directive 2011/65/EU and automotive ELV requirements for end-of-life recyclability |
Applications
| Automotive CAN Bus Node | LIN Cluster Interface |
|---|---|
Use Scenario: Protection of CAN_H/CAN_L lines at ECU connector entry points exposed to load dump and ESD. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between connector and CAN transceiver input pins. Use Value: Clamps transients to ≤13 V while adding only 12 pF capacitance-preserving CAN bit timing and common-mode rejection. | Use Scenario: ESD hardening of LIN master/slave nodes in body control modules with multiple sensors. IC Role / Device Role / Timing Role: Four-channel line protector sharing one ground node to reduce component count on LIN sub-bus branches. Use Value: Enables single-device protection of up to four LIN slave lines (e.g., door module switches, seat position sensors) without layout duplication. |
| Industrial Serial Port | Medical Equipment Data Link |
Use Scenario: Surge protection for RS-485/RS-232 ports on PLC I/O modules operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: Standoff-clamp diode array placed before level translators to prevent latch-up in interface ICs. Use Value: Withstands repeated ±8 kV ESD strikes while maintaining <1 µA leakage-avoiding false triggers in high-impedance receive circuits. | Use Scenario: Protecting USB-to-serial debug interfaces and sensor telemetry lines in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on isolated data lines connecting patient monitors to host PCs. Use Value: 9.5 pF max capacitance at 3 V ensures <1% signal attenuation at 1 MHz-critical for accurate analog sensor digitization timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E05U06DQAR | Lower 5.5 V clamping at 1 A; 0.5 pF lower capacitance; dual-channel only | Requires two devices for four-line coverage; better suited for USB 2.0 or HDMI | Select when ultra-low capacitance (<6 pF) is prioritized over channel count and cost-per-line |
| SP1004-04UTG | Higher 15 V clamping at 1.2 A; 18 pF capacitance; same SC-88A package | Marginally higher clamping may stress 5 V transceivers; higher capacitance limits >500 kbps use | Choose if legacy design validation already covers 15 V clamping margin and board space is identical |
Compared with TPD4E05U06DQAR and SP1004-04UTG, NSQA6V8AW5T2G offers optimal balance of four-channel integration, 13 V clamping safety margin, and 12 pF capacitance-making it preferred for new CAN/LIN designs where board area and ESD robustness are co-constrained.
Availability
NSQA6V8AW5T2G is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, medical telemetry links, and consumer electronics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NSQA6V8AW5T2G 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
onsemi is a global semiconductor supplier delivering energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, medical, and IoT applications.
The NSQA6V8AW5T2G belongs to onsemi's ESD protection diode family engineered specifically for high-reliability data line hardening in automotive and industrial networks-emphasizing low clamping, predictable capacitance, and compact multichannel packaging.
FAQ
What is the primary circuit role of the NSQA6V8AW5T2G?
The NSQA6V8AW5T2G serves as a unidirectional ESD and surge protection device for four independent low-voltage data lines. Its circuit role is to clamp transient overvoltages-such as those from IEC 61000-4-2 ESD events or ISO 7637-2 load dump-to a safe level (≤13 V) while remaining non-conductive during normal 5 V bus operation. The NSQA6V8AW5T2G achieves this using integrated Zener-based diode structures tied to a common anode, making it ideal for CAN, LIN, and other 5 V serial interfaces.
Does the NSQA6V8AW5T2G support bidirectional signal lines like standard CAN differential pairs?
No-the NSQA6V8AW5T2G is strictly unidirectional and configured with a common anode and four separate cathodes. It protects each line against positive transients relative to ground, making it suitable for single-ended lines such as LIN or individual CAN_H/CAN_L traces when used in pairs. For true bidirectional differential protection, two NSQA6V8AW5T2G devices or a dedicated bidirectional array would be required. The NSQA6V8AW5T2G datasheet explicitly specifies unidirectional operation and does not support symmetrical clamping on both polarities.
What is the maximum allowable junction temperature for continuous operation of the NSQA6V8AW5T2G?
The NSQA6V8AW5T2G has a specified operating junction temperature range of −40 °C to +125 °C. This maximum of +125 °C applies under steady-state conditions with appropriate PCB copper pour and thermal relief. Derating begins above 25 °C ambient at 3.05 mW/°C per diode (or 12.2 mW/°C total for all four channels), based on its 327 °C/W junction-to-ambient thermal resistance. The NSQA6V8AW5T2G must be mounted on FR4 with minimum pad size to meet this rating, as confirmed in the onsemi datasheet.
How does the NSQA6V8AW5T2G achieve IEC 61000-4-2 Level 4 compliance?
The NSQA6V8AW5T2G achieves IEC 61000-4-2 Level 4 compliance (±8 kV contact discharge) through verified clamping behavior captured via oscilloscope waveform analysis-not theoretical calculation. Per onsemi Application Note AND8307/D, the device's voltage across terminals is measured in real time during full ESD pulse injection, confirming clamping stays ≤13 V throughout the event. This empirical validation-documented in Figures 1 and 2 of the NSQA6V8AW5T2G datasheet-ensures repeatable protection without reliance on system-level filtering or layout-dependent performance.
Is the NSQA6V8AW5T2G pin-compatible with other devices in the NSQA6V8AW5T2 series?
Yes-the NSQA6V8AW5T2G shares identical SC-88A pinout and package dimensions with other members of the NSQA6V8AW5T2 series, including NSQA12VAW5T2G. Both use Style 5 pin assignment (cathode-anode-cathode-cathode-cathode) and the same 5-pin SOT-353 outline. However, electrical parameters differ: NSQA6V8AW5T2G has 5 V standoff and 13 V clamping, while NSQA12VAW5T2G has 9 V standoff and 23 V clamping. The NSQA6V8AW5T2G is not functionally interchangeable without verifying system voltage margins.
NSQA6V8AW5T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 13V
- Current - Peak Pulse (10/1000µs):
- 1.6A (8/20µs)
- Power - Peak Pulse:
- 20W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 12pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-88A (SC-70-5/SOT-353)
NSQA6V8AW5T2G FAQ
1.How can I place an order for NSQA6V8AW5T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NSQA6V8AW5T2G 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 NSQA6V8AW5T2G reliable?
The price and inventory of NSQA6V8AW5T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NSQA6V8AW5T2G is usually 5 days.
3.What payment methods are accepted for NSQA6V8AW5T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NSQA6V8AW5T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NSQA6V8AW5T2G?
NSQA6V8AW5T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NSQA6V8AW5T2G 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 NSQA6V8AW5T2G?
For technical support, including NSQA6V8AW5T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NSQA6V8AW5T2G requirements.
6.How does Aetrix verify that NSQA6V8AW5T2G is sourced from the original manufacturer or authorized distributors?
All NSQA6V8AW5T2G 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 NSQA6V8AW5T2G meets industry standards.
7.What is the process for return or replacement of NSQA6V8AW5T2G?
All NSQA6V8AW5T2G units undergo pre-shipment inspection (PSI). If there is an issue with NSQA6V8AW5T2G, 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 NSQA6V8AW5T2G part is unused and in its original packaging.
Return procedure for NSQA6V8AW5T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NSQA6V8AW5T2G Tags
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ESD9B5.0ST5G
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D12V0L1B2LP-7B
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PESD2V0Y1BSFYL
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