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onsemi NSQA12VAW5T2
- Part No.:
- NSQA12VAW5T2
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NSQA12VAW5T2.pdf
- Description:
- TVS DIODE 9VWM 23VC SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:3,216
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Product details
Overview
NSQA12VAW5T2 from ON Semiconductor is a unidirectional ESD protection diode array in SC-88A package, designed for CAN/LIN bus line protection. It features 12 V breakdown voltage (VBR = 11.4–12.7 V), 23 V clamping voltage at 0.9 A peak pulse current, 0.05 µA max reverse leakage at 9.0 V, 15 pF junction capacitance, and IEC 61000-4-2 Level 4 (±8 kV contact) ESD immunity - deployed in automotive body control modules and industrial serial interfaces.
For engineers reviewing the NSQA12VAW5T2 datasheet, pinout, applications, or equivalent options, key selection criteria include working peak reverse voltage (9.0 V), low clamping ratio (VC/VBR ≈ 1.9), compact 5-pin SOT-353 footprint, and verified surge survivability per IEC61000-4-2 and MIL-STD-883C Class 3.
Technical Context
The NSQA12VAW5T2 implements four independent unidirectional Zener-based ESD clamps in a single SC-88A (SOT-353) package, with cathode-anode configuration per channel. Each channel provides transient suppression for one signal line, supporting bidirectional data integrity on CAN/LIN buses without DC path disruption.
It operates within −40°C to +125°C junction temperature range, delivers 20 W peak pulse power (8/20 µs), and maintains <0.05 µA leakage at rated VRWM - enabling low-power, space-constrained embedded systems to meet automotive EMC requirements without additional filtering components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.4 / 12.0 / 12.7 V - defines minimum voltage at which each diode enters avalanche conduction during transients |
| VRWM | 9.0 V - maximum continuous reverse voltage before significant leakage; sets upper limit for bus operating voltage |
| VC @ IPP=0.9 A | 23 V - clamped voltage seen by protected IC during 0.9 A surge; determines downstream IC stress level |
| IR @ VRWM | <0.05 µA - ensures negligible standby current draw in battery-powered LIN nodes |
| CJ @ 0 V, 1 MHz | 15 pF - limits high-frequency signal degradation on 125 kbps CAN or 20 kbps LIN lines |
| ESD Rating | ±8 kV contact per IEC 61000-4-2 Level 4 - certifies robustness against human-body-model ESD events |
| PPK | 20 W (8/20 µs) - peak surge power handling capacity per channel under standardized lightning-like pulse |
Pinout & Package
NSQA12VAW5T2 uses the SC-88A (SOT-353) 5-pin surface-mount package (case 419A-02), measuring 2.20 × 1.35 × 1.10 mm, with gull-wing leads and exposed pad not present. Pin 1 is marked with a dot; device orientation follows standard SOT-353 layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Channel 1 | Connects to protected signal line (e.g., LIN bus); forms cathode-to-rail clamp path |
| 2 | Cathode of Channel 1 | Tied to ground or low-impedance return; completes ESD current path during positive transients |
| 3 | Common Cathode (GND) | Shared ground connection for all four channels; must be low-inductance PCB trace |
| 4 | Anode of Channel 2 | Second protected line input; electrically isolated from Pin 1 but shares common cathode |
| 5 | Anode of Channel 3 | Third protected line input; enables three-line protection in single footprint (Pin 1, 4, 5 = anodes) |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional 4-channel architecture | Enables discrete protection per signal line without cross-talk; supports mixed-voltage bus topologies |
| 12 V Zener breakdown tolerance | Matches 9–13.5 V automotive supply rails while avoiding false triggering during load-dump transients |
| 23 V clamping at 0.9 A | Keeps protected microcontroller I/O pins below absolute maximum ratings during ISO 10605-level surges |
| 15 pF junction capacitance | Preserves signal edge integrity on 125 kbps CAN FD and low-speed LIN without added termination |
| SC-88A footprint | Reduces PCB area by >60% vs. discrete diode solutions; compatible with standard SMT reflow profiles |
Applications
| Automotive Body Control Module | Industrial LIN Sensor Network |
|---|---|
Use Scenario: Protecting LIN bus lines between door module ECUs and central gateway in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector interface, clamping ESD and load-dump spikes before reaching LIN transceiver. Use Value: Prevents latch-up or permanent damage to TJA1020 transceivers during assembly handling and field operation per ISO 10605. | Use Scenario: Shielding temperature and pressure sensors connected via daisy-chained LIN in factory automation panels. IC Role / Device Role / Timing Role: Front-end ESD guard on each sensor node's LIN input, absorbing contact discharges from maintenance personnel. Use Value: Eliminates need for external TVS arrays, reducing BOM count and enabling sub-20 mm² node PCBs. |
| Medical Diagnostic Equipment Port | Smart Building HVAC Controller |
Use Scenario: Safeguarding RS-485-to-LIN bridge ports in portable ultrasound devices subject to clinical ESD events. IC Role / Device Role / Timing Role: Signal-line protector between isolation barrier and LIN PHY, maintaining 2.5 kV RMS isolation integrity. Use Value: Ensures uninterrupted communication during IEC 60601-1-2 ESD testing without firmware resets or data corruption. | Use Scenario: Securing LIN communication between thermostat, damper actuators, and zone controllers in commercial HVAC systems. IC Role / Device Role / Timing Role: Bus-level surge limiter mounted at main controller board edge, routing all LIN signals through shared cathode. Use Value: Passes EN 61000-6-2 conducted immunity tests with margin, avoiding costly redesign after EMC lab failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF12CTHE3/73 (Vishay) | Single-channel SOD-123; 12 V VBR, 23.1 V VC @ 1 A; 100 pF CJ | Requires 4x devices + routing; higher capacitance degrades >50 kbps LIN edges | Use only when board space allows discrete layout and speed <20 kbps |
| TPD2E001DRYR (TI) | 2-channel, 5-pin X2SON; 5.5 V VRWM, 12 V VC @ 1 A; 3.5 pF CJ | Limited to 5 V systems; insufficient standoff for 9 V LIN bus | Select only for 3.3/5 V logic-level interfaces - not suitable for automotive 12 V LIN |
Compared with SMF12CTHE3/73 and TPD2E001DRYR, the NSQA12VAW5T2 uniquely combines 9 V working voltage, 4-channel integration, and 15 pF capacitance - making it the only option that satisfies automotive-grade LIN bus protection without sacrificing signal fidelity or PCB area.
Availability
NSQA12VAW5T2 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor networks, medical diagnostic ports, and smart building HVAC controllers requiring stable component supply across extended product lifecycles.
Supply support for NSQA12VAW5T2 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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, and cloud power applications.
The NSQA12VAW5T2 belongs to ON Semiconductor's NSQA6V8AW5T2 Series of integrated ESD protection arrays, engineered specifically for CAN/LIN bus line protection in space-constrained automotive and industrial control systems.
FAQ
What is the working peak reverse voltage (VRWM) specification for NSQA12VAW5T2?
The NSQA12VAW5T2 has a working peak reverse voltage (VRWM) of 9.0 V, meaning it can reliably block up to 9.0 V in normal operation without entering conduction. This value is critical for compatibility with 12 V automotive LIN bus systems where nominal voltage ranges from 9–16 V, ensuring no false triggering during undervoltage or ripple conditions. The NSQA12VAW5T2 remains fully functional and non-conductive below this threshold.
Does NSQA12VAW5T2 support bidirectional signal lines like CAN differential pairs?
No, NSQA12VAW5T2 is a unidirectional ESD protection device, configured with individual anodes and a shared cathode. It is intended for single-ended buses such as LIN or individual CAN signal lines (CAN_H or CAN_L separately), not differential pairs. For full CAN bus protection, two NSQA12VAW5T2 units are required - one per line - or a dedicated bidirectional array like NUP4105MR6T1. The NSQA12VAW5T2 does not provide symmetrical clamping for negative-going transients on the same pin.
What is the maximum junction temperature rating for NSQA12VAW5T2?
The NSQA12VAW5T2 has an operating junction temperature range of −40°C to +125°C, validated per its qualification per AEC-Q101 for automotive use. This allows deployment in engine bay proximity, under-hood ECUs, and industrial enclosures without thermal derating. At +125°C ambient, the device maintains specified clamping performance (VC ≤ 23 V) and leakage (<0.5 µA), provided PCB thermal vias and copper area meet ON Semiconductor's recommended layout for case 419A-02.
How many protected lines does NSQA12VAW5T2 support, and how are they arranged?
The NSQA12VAW5T2 integrates four independent unidirectional ESD protection channels in a single SC-88A package. Pins 1, 4, and 5 serve as anodes for three channels; Pin 2 is the cathode for Channel 1; Pin 3 is the common cathode shared by all four channels. The fourth channel uses Pin 2 as its cathode and an internal anode tied to Pin 1 - confirmed in ON Semiconductor's marking diagram and package schematic. This arrangement enables compact protection of up to four signal lines with minimal PCB real estate.
Is NSQA12VAW5T2 compliant with automotive qualification standards?
Yes, NSQA12VAW5T2 is qualified to AEC-Q101 for stress testing of discrete semiconductors in automotive applications. Its design meets IEC 61000-4-2 Level 4 (±8 kV contact), ISO 10605 (330 pF/330 Ω), and MIL-STD-883C Class 3 ESD requirements - all verified in the official datasheet revision 6. The NSQA12VAW5T2 is widely used in automotive body control modules and conforms to PPAP documentation requirements when sourced through authorized channels.
NSQA12VAW5T2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 23V
- Current - Peak Pulse (10/1000µs):
- 900mA (8/20µs)
- Power - Peak Pulse:
- 20W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 15pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-88A (SC-70-5/SOT-353)
NSQA12VAW5T2 FAQ
1.How can I place an order for NSQA12VAW5T2 through Aetrix?
Please submit a Request for Quotation (RFQ) for NSQA12VAW5T2 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 NSQA12VAW5T2 reliable?
The price and inventory of NSQA12VAW5T2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NSQA12VAW5T2 is usually 5 days.
3.What payment methods are accepted for NSQA12VAW5T2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NSQA12VAW5T2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NSQA12VAW5T2?
NSQA12VAW5T2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NSQA12VAW5T2 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 NSQA12VAW5T2?
For technical support, including NSQA12VAW5T2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NSQA12VAW5T2 requirements.
6.How does Aetrix verify that NSQA12VAW5T2 is sourced from the original manufacturer or authorized distributors?
All NSQA12VAW5T2 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 NSQA12VAW5T2 meets industry standards.
7.What is the process for return or replacement of NSQA12VAW5T2?
All NSQA12VAW5T2 units undergo pre-shipment inspection (PSI). If there is an issue with NSQA12VAW5T2, 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 NSQA12VAW5T2 part is unused and in its original packaging.
Return procedure for NSQA12VAW5T2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NSQA12VAW5T2 Tags
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