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onsemi SZNSQA6V8AW5T2G
- Part No.:
- SZNSQA6V8AW5T2G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
SZNSQA6V8AW5T2G.pdf
- Description:
- TVS DIODE 5VWM 13VC SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:8,961
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Product details
Overview
SZNSQA6V8AW5T2G from onsemi is a unidirectional ESD protection diode array designed for CAN/LIN bus line protection. It features a 5 V stand-off 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 IEC 61000-4-2 Level 4 (±8 kV contact) ESD compliance - deployed in automotive body control modules and industrial serial interface nodes.
For engineers reviewing the SZNSQA6V8AW5T2G 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, SC-88A footprint compatibility, and unidirectional configuration for asymmetric signal rails.
Technical Context
This device integrates four independent unidirectional ESD protection diodes in a single SC-88A package, each configured with anode-to-rail and cathode-to-ground topology. It operates within −40 °C to +125 °C junction temperature range and supports transient suppression per IEC 61000-4-2 and MIL-STD-883C Class 3 standards.
The diode array delivers 20 W peak pulse power (8/20 µs waveform), 380 mW steady-state power per diode, and thermal resistance of 327 °C/W (Junction-to-Ambient). Its breakdown voltage is specified at 6.4–7.1 V (1 mA test current), ensuring reliable turn-on before downstream IC damage thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 5 V - Maximum continuous reverse voltage before significant leakage; sets safe operating margin below bus nominal voltage. |
| Clamping Voltage (VC) | 13 V @ 1.6 A - Peak voltage seen by protected IC during IEC 61000-4-2 ESD event; limits stress on CAN transceiver I/O. |
| Breakdown Voltage (VBR) | 6.8 V (typ) @ 1 mA - Confirmed turn-on threshold; ensures conduction before 5 V rail overvoltage damages connected logic. |
| Junction Capacitance (CJ) | 12 pF @ 0 V - Low parasitic loading on high-speed CAN/LIN lines; preserves signal edge integrity up to ~10 Mbps. |
| ESD Rating | ±8 kV contact per IEC 61000-4-2 Level 4 - Validated immunity to human-body-model-like discharges in end-equipment testing. |
| Leakage Current (IR) | <1 µA @ 5 V - Negligible standby power draw; avoids battery drain in always-on automotive modules. |
| Package | SC-88A (SOT-353) - 5-pin surface-mount outline with 1.25 mm × 2.1 mm footprint; enables compact placement near connectors. |
Pinout & Package
SC-88A package (Case 419A-02), 5-terminal leadless SMT outline with gull-wing leads. Pin 1 marked by dot or bevel; device orientation follows JEDEC standard for SOT-353.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input terminal for first protected line; connects to CAN_H or LIN bus trace prior to transceiver input. |
| 2 | Cathode 1 | Ground return path for Line 1; ties directly to system ground plane to minimize inductance in ESD current path. |
| 3 | Anode 2 | Input terminal for second protected line; used for CAN_L or auxiliary signal line requiring matched clamping. |
| 4 | Cathode 2 | Shared ground node for Lines 2–4; common cathode connection reduces PCB routing complexity. |
| 5 | Cathode 3 / Cathode 4 | Terminal shared by third and fourth diodes; completes unidirectional protection paths for dual-rail or multi-line interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Four independent unidirectional diodes | Enables discrete protection of CAN_H, CAN_L, LIN, and wake-up line without cross-talk or shared impedance. |
| Low clamping voltage (13 V) | Keeps transient voltage below typical 16 V absolute maximum rating of automotive CAN transceivers (e.g., TJA1042). |
| 12 pF junction capacitance | Supports bit rates up to 1 Mbps CAN FD and 20 kbps LIN without measurable rise-time degradation. |
| Pb-free and RoHS-compliant | Meets automotive ELV Directive and IPC-J-STD-020 moisture sensitivity level 1 (MSL1) for reflow compatibility. |
| −40 °C to +125 °C operation | Validated for under-hood and cabin-mounted ECUs where ambient temperature exceeds 85 °C. |
Applications
| Automotive CAN Bus Node | Industrial LIN Master Interface |
|---|---|
|
Use Scenario: Protection of CAN_H/CAN_L differential pair in body control module against ESD events during service or connector mating. IC Role / Device Role: Front-end transient suppressor placed between connector and CAN transceiver (e.g., SN65HVD230). Use Value: Prevents latch-up or gate oxide rupture in transceiver I/O cells by limiting voltage to ≤13 V during ±8 kV contact discharge. |
Use Scenario: ESD hardening of LIN bus in HVAC control unit exposed to technician handling and cable flexing. IC Role / Device Role: Unidirectional clamp on LIN signal line referenced to local ground, upstream of LIN transceiver (e.g., MC33661). Use Value: Maintains <12 pF loading to preserve 20 kbps timing margins while meeting ISO 10605 25 kV air-gap requirement via system-level design. |
| Medical Equipment Serial Port | POS Terminal RS-485 Interface |
|
Use Scenario: Surge protection for RS-232 debug port on patient monitor where operator touch introduces ESD risk. IC Role / Device Role: Single-line protector on TX/RX lines using two channels of SZNSQA6V8AW5T2G in split-anode configuration. Use Value: Achieves IEC 61000-4-2 Level 4 compliance without adding series resistance that degrades slew rate. |
Use Scenario: Transient suppression on RS-485 A/B lines in retail payment terminal subjected to frequent cable swaps and static buildup. IC Role / Device Role: Dual-line unidirectional clamp protecting differential pair while preserving common-mode rejection ratio. Use Value: Limits clamping asymmetry to <0.5 V between A and B lines, preventing false logic states during ESD-induced common-mode noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NUP4105MR6T1G | Quad unidirectional; 5.5 V VRWM, 14.5 V VC @ 1 A, 15 pF; SOT-553 package (smaller footprint, higher thermal resistance) | Lower peak current rating (1 A vs. 1.6 A); suitable for lower-energy interfaces like I²C or SMBus | Select when board space is constrained and peak surge energy is ≤15 W; verify thermal derating above 70 °C ambient. |
| TPD4E001DPYR | Quad unidirectional; 5 V VRWM, 12 V VC @ 1 A, 8 pF; X2SON-8 package (0.8 mm × 1.3 mm) | Lower capacitance improves >25 Mbps USB 2.0 eye diagram margin but lacks automotive temperature validation | Prefer for consumer electronics with tight layout constraints; avoid in AEC-Q200-qualified automotive modules. |
Compared with NUP4105MR6T1G and TPD4E001DPYR, SZNSQA6V8AW5T2G offers higher peak pulse current handling (1.6 A), validated −40 °C to +125 °C operation, and SC-88A mechanical robustness - making it optimal for automotive CAN/LIN where reliability under thermal cycling and high-energy transients is critical.
Availability
SZNSQA6V8AW5T2G is available at Aetrix Electronics and suitable for automotive body control units, industrial LIN master nodes, and medical serial interface designs requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned reliability.
Supply support for SZNSQA6V8AW5T2G 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and logic solutions for automotive, industrial, cloud, and medical markets.
The NSQA6V8AW5T2 Series belongs to onsemi's transient voltage suppression portfolio, engineered specifically for high-reliability CAN/LIN bus protection in automotive ECUs where low clamping, low capacitance, and extended temperature operation are mandatory.
FAQ
What is the maximum operating temperature for SZNSQA6V8AW5T2G?
SZNSQA6V8AW5T2G has a specified operating junction temperature range of −40 °C to +125 °C. This rating is validated per onsemi's qualification testing and supports deployment in engine bay and transmission control modules where ambient temperatures exceed 105 °C. Derating begins above 25 °C per the published thermal resistance curve (327 °C/W).
Does SZNSQA6V8AW5T2G support bidirectional ESD protection?
No, SZNSQA6V8AW5T2G implements four unidirectional diodes - each anode-to-line and cathode-to-ground configuration. It does not provide symmetrical clamping for AC-coupled or bipolar signal lines. For bidirectional protection, consider onsemi's NUP2114 or similar dual-rail devices.
What is the IEC 61000-4-2 ESD performance of SZNSQA6V8AW5T2G?
SZNSQA6V8AW5T2G meets IEC 61000-4-2 Level 4: ±8 kV contact discharge and ±15 kV air discharge. Clamping voltage screenshots in the official datasheet confirm sustained voltage ≤13 V during full 8 kV contact pulses, enabling system-level pass without additional TVS stages.
Can SZNSQA6V8AW5T2G be used on a 3.3 V logic bus?
No - SZNSQA6V8AW5T2G has a 5 V stand-off voltage (VRWM) and 6.8 V typical breakdown voltage. Using it on a 3.3 V rail risks premature conduction and increased leakage. For 3.3 V interfaces, select a device with VRWM ≤3.3 V, such as SZESD9101P2T5G (3.3 V VRWM).
Is SZNSQA6V8AW5T2G pin-compatible with other SC-88A ESD arrays?
SZNSQA6V8AW5T2G uses Style 5 pinout (CATHODE / COMMON ANODE / CATHODE / CATHODE / CATHODE) per onsemi's marking diagram. It is not pin-compatible with Style 3 (dual-anode/dual-cathode) or Style 9 (quad-anode) SC-88A variants. Always verify pin assignment against the specific device datasheet before layout reuse.
SZNSQA6V8AW5T2G 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:
- -
- Capacitance @ Frequency:
- 12pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-88A (SC-70-5/SOT-353)
SZNSQA6V8AW5T2G FAQ
1.How can I place an order for SZNSQA6V8AW5T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNSQA6V8AW5T2G 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 SZNSQA6V8AW5T2G reliable?
The price and inventory of SZNSQA6V8AW5T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNSQA6V8AW5T2G is usually 5 days.
3.What payment methods are accepted for SZNSQA6V8AW5T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNSQA6V8AW5T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNSQA6V8AW5T2G?
SZNSQA6V8AW5T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNSQA6V8AW5T2G 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 SZNSQA6V8AW5T2G?
For technical support, including SZNSQA6V8AW5T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNSQA6V8AW5T2G requirements.
6.How does Aetrix verify that SZNSQA6V8AW5T2G is sourced from the original manufacturer or authorized distributors?
All SZNSQA6V8AW5T2G 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 SZNSQA6V8AW5T2G meets industry standards.
7.What is the process for return or replacement of SZNSQA6V8AW5T2G?
All SZNSQA6V8AW5T2G units undergo pre-shipment inspection (PSI). If there is an issue with SZNSQA6V8AW5T2G, 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 SZNSQA6V8AW5T2G part is unused and in its original packaging.
Return procedure for SZNSQA6V8AW5T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZNSQA6V8AW5T2G Tags
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ESD9B5.0ST5G
onsemi
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