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onsemi SZSMF12CT1G
- Part No.:
- SZSMF12CT1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
SZSMF12CT1G.pdf
- Description:
- TVS DIODE 12VWM 23VC SC88/SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,008
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Product details
Overview
SZSMF12CT1G from onsemi is a 5-line ESD and transient voltage protection diode array in SC-88 package, featuring 12 V reverse working voltage (VRWM), 21 V clamping voltage at 3 A pulse, and 100 W peak power dissipation (8 × 20 µs). It employs monolithic common-anode architecture for line-level surge suppression in high-speed data interfaces.
For engineers reviewing the SZSMF12CT1G datasheet, pinout, applications, or equivalent options, this device is selected for automotive-grade ESD protection where IEC 61000-4-2 ±15 kV air/±8 kV contact compliance, low leakage (<0.1 µA at 12 V), and sub-60 pF line-to-ground capacitance are critical.
Technical Context
The SZSMF12CT1G implements a single common-anode, five-cathode monolithic silicon array optimized for bidirectional transient suppression across five independent signal lines. Its breakdown voltage (13.3–15 V) ensures robust margin above the 12 V VRWM rating while maintaining fast response to ESD events.
Designed per AEC-Q101, it supports automotive electronics with −40 °C to +125 °C junction operation, UL 94 V-0 flammability rating, and Pb-free SC-88 packaging. The 0.65 mm pitch, 2.00 × 1.25 × 0.90 mm outline enables compact placement near connectors or high-speed ports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12 V - Maximum continuous DC or peak operating voltage the protected line can sustain without conduction |
| VBR (min) | 13.3 V - Ensures reliable turn-on before damage threshold of downstream ICs in 12 V systems |
| VC @ IPP = 3 A | 21 V - Clamped voltage during 8 × 20 µs surge; stays below typical 24 V rail tolerance limits |
| IPP (max) | 6.0 A - Peak pulse current handling capacity under standardized surge waveform |
| CJ (max) | 60 pF - Low line-to-ground capacitance preserves signal integrity in USB 2.0, CAN, or UART interfaces |
| ESD HBM | 16 kV - Exceeds Class 3B requirement; protects against human-body discharge in handheld and automotive assembly |
| IEC 61000-4-2 | ±15 kV air / ±8 kV contact - Full compliance with industrial and automotive immunity standards |
Pinout & Package
Package: SC-88 (Case 419B, Style 24), 6-pin surface-mount, 2.00 × 1.25 × 0.90 mm, 0.65 mm pitch, Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Line 1 protected path - connects to first I/O trace requiring ESD clamp to common anode |
| 2 | Anode | Common anode node - ties all five cathodes to system ground or low-impedance return path |
| 3 | Cathode | Line 2 protected path - independent clamping for second signal line (e.g., TX/RX pair) |
| 4 | Cathode | Line 3 protected path - supports multi-line interface such as parallel bus or camera interface |
| 5 | Cathode | Line 4 protected path - enables protection of auxiliary control lines (e.g., reset, interrupt) |
| 6 | Cathode | Line 5 protected path - completes full 5-line coverage; matches pin assignment in SMF family datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic common-anode array | Single-die integration of five TVS paths reduces board area vs discrete diodes and ensures matched thermal behavior |
| 100 W peak power (8 × 20 µs) | Withstands high-energy transients from load dump or inductive switching without degradation |
| AEC-Q101 qualified | Validated for automotive under-hood and infotainment applications with extended temperature and reliability testing |
| UL 94 V-0 flammability rating | Meets safety requirements for enclosed consumer and automotive enclosures under fault conditions |
| SZ prefix designation | Indicates automotive-specific process controls, site qualification, and PPAP capability per customer requirements |
Applications
| Automotive Infotainment | Industrial Ethernet Port |
|---|---|
|
Use Scenario: Protecting HDMI, USB, and audio interface lines in head units and display modules exposed to ESD during service or user interaction. IC Role / Device Role / Timing Role: ESD transient suppressor placed at connector entry point, clamping fast-rising discharges before reaching SoC or PHY ICs. Use Value: 60 pF max capacitance avoids signal distortion on 480 Mbps USB 2.0 links; ±8 kV contact rating meets ISO 10605 requirements. |
Use Scenario: Safeguarding RJ45 PHY interface pins in programmable logic controllers and field IO modules subject to lightning-induced surges. IC Role / Device Role / Timing Role: Line-level TVS array shunting transients on differential pairs and management signals (MDIO, reset). Use Value: 21 V clamping at 3 A ensures PHY ICs (e.g., DP83848) remain within absolute maximum ratings during 1 kV/2 kV surge tests. |
| Automotive Body Control Module | Medical Handheld Device |
|
Use Scenario: Shielding LIN bus, sensor inputs, and switch matrix lines in BCMs from battery transients and ESD in vehicle assembly plants. IC Role / Device Role / Timing Role: Five-channel protector covering multiple low-speed digital and analog sensor lines sharing common ground return. Use Value: Common-anode architecture minimizes PCB routing complexity and eliminates need for five separate ground vias. |
Use Scenario: Securing touchscreen, button, and serial debug interfaces in portable diagnostic tools subjected to repeated human contact discharge. IC Role / Device Role / Timing Role: Primary ESD barrier at front-panel connectors, rated for >16 kV HBM to prevent latch-up in microcontroller GPIOs. Use Value: 0.1 µA max leakage at 12 V prevents battery drain in always-on medical devices with multi-year shelf life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF12CT1G | Same electrical specs and SC-88 package but lacks SZ prefix; not AEC-Q101 qualified or PPAP capable | Approved for commercial/industrial use only; excluded from automotive production BOMs requiring PPAP documentation | Select SMF12CT1G for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
| TPD4E001DRYR | 4-line array (not 5-line); 12 V VRWM; 15 pF typ capacitance; lower 35 W peak power; same SC-70 package | Better suited for ultra-high-speed interfaces (e.g., USB 3.0, MIPI) due to lower capacitance, but covers fewer lines per device | Choose TPD4E001DRYR when minimizing line capacitance is prioritized over channel count and peak power handling |
Compared with SMF12CT1G, SZSMF12CT1G adds automotive qualification and process traceability; versus TPD4E001DRYR, it trades lower capacitance for higher surge robustness and one additional protected line-critical for cost-optimized 5-signal port protection in automotive ECUs.
Availability
SZSMF12CT1G is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial Ethernet equipment, and medical handheld devices requiring stable component supply with full AEC-Q101 compliance and long-term lifecycle support.
Supply support for SZSMF12CT1G 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 management, analog, sensors, and ESD protection solutions for automotive, industrial, and computing markets.
SZSMF12CT1G belongs to the SMF-series transient voltage suppression array product line, engineered specifically for high-reliability ESD and surge protection in automotive electronics with stringent qualification and process control requirements.
FAQ
What is the primary function of the SZSMF12CT1G?
The SZSMF12CT1G is a 5-line ESD and transient voltage protection diode array designed to safeguard sensitive electronic interfaces from electrostatic discharge and surge events. Its monolithic common-anode structure allows simultaneous protection of five independent signal lines while maintaining low capacitance and fast response. The SZSMF12CT1G is commonly deployed at I/O connectors in automotive and industrial systems to prevent damage to downstream ICs.
Does the SZSMF12CT1G meet automotive qualification standards?
Yes, the SZSMF12CT1G is AEC-Q101 qualified and PPAP capable, with the "SZ" prefix indicating automotive-specific process controls, site qualification, and enhanced traceability. It operates across −40 °C to +125 °C junction temperature and complies with IEC 61000-4-2 (±15 kV air, ±8 kV contact) and ISO 10605 requirements-making it suitable for production automotive ECUs and infotainment modules.
What is the clamping voltage of the SZSMF12CT1G under surge conditions?
The SZSMF12CT1G has a maximum clamping voltage (VC) of 21 V at 3 A peak pulse current (8 × 20 µs waveform) and 23 V at 6 A. This ensures that protected circuitry remains within safe operating limits during transient events. These values are measured per JEDEC standards and confirmed in the official onsemi datasheet for SZSMF12CT1G, enabling accurate system-level surge margin analysis.
How does the SZSMF12CT1G differ from the SMF12CT1G?
The SZSMF12CT1G and SMF12CT1G share identical electrical specifications and SC-88 packaging, but the SZ prefix denotes automotive-grade manufacturing controls, AEC-Q101 qualification, and PPAP capability-requirements not met by the standard SMF12CT1G. The SZSMF12CT1G is intended for automotive production environments where process traceability and reliability validation are mandatory.
What package type and pin configuration does the SZSMF12CT1G use?
The SZSMF12CT1G uses the SC-88 (Case 419B, Style 24) package-a 6-pin, surface-mount outline measuring 2.00 × 1.25 × 0.90 mm with 0.65 mm lead pitch. Pin 1 is Cathode (Line 1), Pin 2 is Common Anode, Pins 3–6 are Cathodes for Lines 2–5 respectively. This pinout is explicitly defined in the onsemi SMF05C/D datasheet and verified for SZSMF12CT1G.
SZSMF12CT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 5
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V (Max)
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 23V
- Current - Peak Pulse (10/1000µs):
- 6A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 40pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-88/SC70-6/SOT-363
SZSMF12CT1G FAQ
1.How can I place an order for SZSMF12CT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZSMF12CT1G 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 SZSMF12CT1G reliable?
The price and inventory of SZSMF12CT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZSMF12CT1G is usually 5 days.
3.What payment methods are accepted for SZSMF12CT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZSMF12CT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZSMF12CT1G?
SZSMF12CT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZSMF12CT1G 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 SZSMF12CT1G?
For technical support, including SZSMF12CT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZSMF12CT1G requirements.
6.How does Aetrix verify that SZSMF12CT1G is sourced from the original manufacturer or authorized distributors?
All SZSMF12CT1G 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 SZSMF12CT1G meets industry standards.
7.What is the process for return or replacement of SZSMF12CT1G?
All SZSMF12CT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZSMF12CT1G, 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 SZSMF12CT1G part is unused and in its original packaging.
Return procedure for SZSMF12CT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZSMF12CT1G Tags
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ESD9B5.0ST5G
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D12V0L1B2LP-7B
Diodes Incorporated
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