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onsemi SMF05CT2G
- Part No.:
- SMF05CT2G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
SMF05CT2G.pdf
- Description:
- TVS DIODE 5VWM 12.5V SC88/SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:25,482
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Product details
Overview
SMF05CT2G from onsemi is a 5-line ESD protection diode array in SC-88 package, designed for transient voltage suppression in high-speed data lines. It features 5.0 V reverse working voltage, 6.2–7.2 V breakdown voltage at 1 mA, 9.8 V clamping voltage at 5 A (8 × 20 µs), 80–130 pF line-to-GND capacitance, and 100 W peak power dissipation - enabling robust ESD protection in USB, HDMI, and serial port interfaces.
For engineers reviewing the SMF05CT2G datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM ≥ 5.0 V, clamping performance under 5–8 A transients, low capacitance for signal integrity, IEC 61000-4-2 compliance (15 kV air / 8 kV contact), and SC-88 footprint compatibility with space-constrained portable designs.
Technical Context
This monolithic common-anode TVS array integrates five independent cathodes and one shared anode in a single SC-88 package, enabling coordinated clamping across multiple signal lines without cross-talk. Its silicon avalanche structure delivers fast response (<1 ns) to ESD events and surge transients while maintaining low leakage (<5 µA at VRWM).
The device operates over −40 °C to +125 °C junction temperature and meets AEC-Q101 stress requirements for automotive electronics. It is rated for 8 kV HBM and 400 V MM ESD immunity, and complies with IEC 61000-4-2 Level 4 (15 kV air, 8 kV contact) - making it suitable for front-end protection of unidirectional data paths in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 5.0 V - maximum continuous DC or peak AC voltage the device blocks without conduction; sets minimum operating margin for 3.3 V/5 V bus protection. |
| Breakdown Voltage | 6.2–7.2 V at IT = 1 mA - onset voltage of avalanche conduction; ensures reliable triggering before downstream IC damage thresholds. |
| Clamping Voltage | 9.8 V at IPP = 5 A (8 × 20 µs) - maximum voltage seen by protected circuit during standardized surge; stays below typical 12 V IC absolute max ratings. |
| Junction Capacitance | 80–130 pF at VR = 0 V, f = 1 MHz - line-to-GND capacitance affecting signal rise time; suitable for USB 2.0 and RS-232, not USB 3.0 or HDMI 2.0. |
| Peak Pulse Power | 100 W (8 × 20 µs waveform) - transient energy handling capacity; supports repeated surges up to 8 A without degradation per IEC 61000-4-5. |
| ESD Rating | Class 3B HBM (>8 kV), Class C MM (>400 V); exceeds IEC 61000-4-2 (15 kV air, 8 kV contact) - validated for end-equipment level ESD immunity testing. |
Pinout & Package
SMF05CT2G uses the SC-88 (Case 419B, Style 24) surface-mount package: 2.00 mm × 1.25 mm × 0.90 mm, 0.65 mm pitch, 6-pin leaded outline with gull-wing leads. The monolithic common-anode architecture shares Pin 2 as the anode terminal for all five channels.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Line 1) | Protected signal path #1; connects to I/O line requiring ESD clamping to common anode (Pin 2). |
| Pin 2 | Anode (Common) | Shared anode node tied to system ground or low-impedance return; enables compact 5-line protection with single reference point. |
| Pin 3 | Cathode (Line 2) | Protected signal path #2; electrically isolated from other cathodes but clamps to same anode reference. |
| Pin 4 | Cathode (Line 3) | Protected signal path #3; maintains independent surge path while sharing thermal and voltage reference with other channels. |
| Pin 5 | Cathode (Line 4) | Protected signal path #4; allows simultaneous multi-line protection without inter-channel coupling beyond common anode impedance. |
| Pin 6 | Cathode (Line 5) | Protected signal path #5; completes full 5-line coverage in minimal PCB area - critical for miniaturized portable designs. |
Key Features
| Feature | Design Value |
|---|---|
| 5-line monolithic integration | Single SC-88 package replaces five discrete TVS diodes, reducing PCB area by >70% and eliminating layout mismatch between channels. |
| 100 W peak pulse power | Withstands IEC 61000-4-5 8 × 20 µs surges up to 8 A without parametric shift - ensures long-term reliability in industrial and automotive environments. |
| IEC 61000-4-2 compliance | Validated to 15 kV air discharge and 8 kV contact discharge - meets Level 4 immunity required for CE-marked consumer and medical peripherals. |
| Pb-free and RoHS-compliant | Meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) and UL 94 V-0 flammability rating - supports lead-free reflow and safety-critical applications. |
| AEC-Q101 qualified | Stress-tested for automotive-grade temperature cycling, HTSL, and mechanical shock - approved for use in infotainment, ADAS sensor interfaces, and body control modules. |
Applications
| USB 2.0 Interface Protection | Automotive Infotainment Ports |
|---|---|
Use Scenario: Protecting D+ and D− data lines, VBUS, ID, and GND pins of micro-USB connectors in smartphones, tablets, and docking stations against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point; clamps ESD pulses within <1 ns to prevent latch-up or gate oxide damage in USB PHY ICs. Use Value: 80–130 pF capacitance preserves USB 2.0 signal integrity (480 Mbps), while 9.8 V clamping at 5 A ensures protected ICs remain within safe operating area during ±8 kV contact discharge. |
Use Scenario: Shielding CAN FD, LIN, and audio auxiliary inputs in head units and display modules from ESD generated during user interaction or service operations. IC Role / Device Role / Timing Role: Common-anode ESD array guarding up to five low-voltage analog/digital lines (e.g., touch panel I²C, audio jack sense, USB-C CC lines) referenced to chassis ground. Use Value: AEC-Q101 qualification and −40 °C to +125 °C operation guarantee uninterrupted protection across vehicle lifetime; 100 W pulse rating handles load dump-induced transients near battery rails. |
| Notebook Serial Port Protection | Industrial Ethernet PHY Interface |
Use Scenario: Safeguarding RS-232/RS-485 transceiver I/O pins (TX, RX, RTS, CTS, GND) on thin-and-light notebooks and embedded controllers exposed to field maintenance personnel. IC Role / Device Role / Timing Role: Unidirectional clamping diode array with common anode tied to local digital ground; provides low-leakage (<5 µA) standby blocking and rapid turn-on during ESD. Use Value: 5.0 V VRWM matches standard RS-232 logic levels; 12.5 V clamping at 8 A prevents transceiver latch-up during 15 kV air discharge tests mandated by IEC 61000-4-2. |
Use Scenario: Front-end protection of MDI (Medium Dependent Interface) pins on 10/100BASE-TX Ethernet PHYs in programmable logic controllers and factory HMIs. IC Role / Device Role / Timing Role: Line-to-ground TVS array placed before magnetics and PHY input pins; absorbs ESD coupled through unshielded twisted-pair cabling during installation or cable swaps. Use Value: 80–130 pF capacitance avoids signal distortion on 100 Mbps differential pairs; 100 W rating sustains repeated 4 kV EFT bursts per IEC 61000-4-4 without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DRYR | 4-channel, 5.5 V VRWM, 12 pF typical capacitance, 3.5 A IPP max - lower capacitance but fewer lines and lower surge rating. | Optimized for high-speed USB 3.0/MIPI interfaces where <15 pF is mandatory; insufficient for 5-line parallel port or multi-signal automotive harnesses. | Select TPD4E001DRYR when protecting ≤4 high-frequency lines with strict capacitance limits; SMF05CT2G remains preferred for cost-effective 5-line coverage at moderate speed. |
| SZSMF05CT1G | Identical electrical specs and SC-88 package; differs only in AEC-Q101 certification scope and PPAP documentation - same die, enhanced automotive traceability. | Required for Tier-1 automotive BOMs needing full PPAP submission; functionally interchangeable in non-automotive industrial or computing designs. | Choose SZSMF05CT1G for automotive production programs; SMF05CT2G is fully suitable for commercial/industrial applications with identical performance and footprint. |
Compared with TPD4E001DRYR and SZSMF05CT1G, SMF05CT2G uniquely balances 5-line integration, 100 W surge capability, and automotive-grade reliability in a legacy-proven SC-88 footprint - offering broader application coverage than 4-channel alternatives and lower cost than fully PPAP-documented variants.
Availability
SMF05CT2G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment ports, and notebook serial port protection requiring stable component supply, consistent tape-and-reel orientation (T2 suffix), and long-term obsolescence management.
Supply support for SMF05CT2G 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, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The SMF series belongs to onsemi's transient voltage suppression portfolio, engineered specifically for high-density, multi-line ESD protection in space-constrained portable and automotive electronics - emphasizing low capacitance, fast response, and AEC-Q101 compliance.
FAQ
What is the clamping voltage of SMF05CT2G at 5 A transient current?
The SMF05CT2G has a clamping voltage of 9.8 V when subjected to a 5 A peak pulse current with an 8 × 20 µs waveform. This value is measured under standardized surge conditions and ensures downstream ICs - such as USB transceivers or microcontroller GPIOs rated for 12 V absolute maximum - remain within safe operating limits during ESD events. The SMF05CT2G maintains this clamping performance across its full operating temperature range.
Does SMF05CT2G support automotive applications?
Yes, SMF05CT2G is qualified to AEC-Q101 standards and supports automotive applications including infotainment interfaces, sensor signal conditioning, and body control module I/O protection. Its operating junction temperature range of −40 °C to +125 °C, combined with IEC 61000-4-2 Level 4 ESD immunity and 100 W surge capability, meets stringent requirements for passenger cabin and under-hood electronics. While SZSMF05CT1G offers extended PPAP documentation, SMF05CT2G shares identical electrical and thermal performance.
How many signal lines does SMF05CT2G protect, and what is its pin configuration?
SMF05CT2G protects five independent signal lines using a monolithic common-anode architecture in an SC-88 package. Pins 1, 3, 4, 5, and 6 serve as individual cathodes for each protected line, while Pin 2 is the shared anode connected to system ground. This configuration eliminates the need for five separate diodes and reduces PCB routing complexity - a key advantage over discrete solutions when protecting multi-wire interfaces like parallel ports or multi-signal automotive harnesses.
What is the difference between SMF05CT1G and SMF05CT2G?
The SMF05CT2G differs from SMF05CT1G solely in tape-and-reel orientation: "T2" denotes an alternate carrier tape configuration (e.g., reversed part direction or different sprocket hole alignment), while both share identical die, electrical specifications, SC-88 package dimensions, and thermal characteristics. Neither variant affects circuit performance or PCB layout - the choice depends exclusively on SMT placement equipment compatibility and factory feeder requirements.
Is SMF05CT2G compatible with lead-free reflow processes?
Yes, SMF05CT2G is Pb-free and RoHS-compliant, qualified for standard lead-free reflow profiles with a peak solder temperature of 260 °C for 10 seconds. Its SC-88 package meets JEDEC J-STD-020 MSL Level 1, meaning it can be stored indefinitely at ambient conditions without baking prior to assembly. The device also carries UL 94 V-0 flammability rating, supporting safety-critical applications in consumer and industrial equipment.
SMF05CT2G 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):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.2V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 8A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 80pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-88/SC70-6/SOT-363
SMF05CT2G FAQ
1.How can I place an order for SMF05CT2G through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF05CT2G 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 SMF05CT2G reliable?
The price and inventory of SMF05CT2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF05CT2G is usually 5 days.
3.What payment methods are accepted for SMF05CT2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF05CT2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF05CT2G?
SMF05CT2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF05CT2G 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 SMF05CT2G?
For technical support, including SMF05CT2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF05CT2G requirements.
6.How does Aetrix verify that SMF05CT2G is sourced from the original manufacturer or authorized distributors?
All SMF05CT2G 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 SMF05CT2G meets industry standards.
7.What is the process for return or replacement of SMF05CT2G?
All SMF05CT2G units undergo pre-shipment inspection (PSI). If there is an issue with SMF05CT2G, 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 SMF05CT2G part is unused and in its original packaging.
Return procedure for SMF05CT2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF05CT2G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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ESD5Z3.3T1G
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D5V0H1B2LP-7B
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D5V0P1B2LP-7B
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DESD5V0U1BA-7
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ESD5Z5.0T1G
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
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D5V0L1B2WS-7
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