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STMicroelectronics SMM4F6.0A-TR
- Part No.:
- SMM4F6.0A-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-222AA
- Datasheet:
-
SMM4F6.0A-TR.pdf
- Description:
- TVS DIODE 6VWM 13.7VC DO222-AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,761
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Product details
Overview
SMM4F6.0A-TR from STMicroelectronics is a unidirectional 400 W transient voltage suppression diode designed for primary-level ESD and surge protection in low-voltage DC power rails and I/O lines. It features a stand-off voltage of 6.0 V, clamping voltage of 10.3 V at 38.8 A (10/1000 µs), leakage current ≤10 µA at 25 °C, and operates up to 175 °C junction temperature - ideal for automotive body control modules and industrial sensor interfaces.
For engineers reviewing the SMM4F6.0A-TR datasheet, SMM4F6.0A-TR pinout, SMM4F6.0A-TR application, or SMM4F6.0A-TR equivalent, key selection criteria include its 10.3 V clamping performance at 38.8 A, 0.85 mm flat STmite package, IEC 61000-4-2 ±30 kV contact/air discharge compliance, and thermal robustness to 175 °C for under-hood and high-reliability embedded deployments.
Technical Context
This TVS diode uses planar silicon technology to achieve low leakage (<10 µA at VRM) and stable breakdown behavior across temperature (αT = 5.9 × 10⁻⁴ /°C). Its unidirectional configuration enables integration on positive-rail protection paths without reverse-bias conduction concerns.
The device delivers 400 W peak pulse power (10/1000 µs) at 25 °C ambient and sustains up to 160 W at Tj = 175 °C, with dynamic resistance of 0.076 Ω enabling precise clamping control during fast transients like ISO 7637-2 pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 6.0 V - Maximum continuous reverse operating voltage before significant leakage or conduction begins. |
| Breakdown Voltage (VBR) | 6.65–7.35 V @ 1 mA - Confirmed voltage range where avalanche conduction initiates reliably. |
| Clamping Voltage (VCL) | 10.3 V @ 38.8 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge event. |
| Peak Pulse Power (PPP) | 400 W (10/1000 µs) - Sustained surge energy handling capability at 25 °C ambient. |
| Leakage Current (IRM) | ≤10 µA @ 6.0 V, 25 °C - Ensures minimal loading on low-power sensor supply rails. |
| Junction Temperature Range | −55 °C to +175 °C - Enables deployment in engine compartments and industrial enclosures without derating. |
| ESD Robustness | ±30 kV (IEC 61000-4-2, contact & air) - Meets automotive and industrial immunity requirements out-of-box. |
Pinout & Package
STmite Flat surface-mount package: 2-terminal unidirectional diode in ultra-thin 0.85 mm profile (A = 0.80–0.95 mm, D = 1.75–2.05 mm, E = 3.60–3.90 mm), JEDEC-compliant footprint, matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; defines forward direction for unidirectional clamping. |
| Cathode | High-side connection point | Connected to protected line (e.g., 5 V rail); conducts surge current toward ground when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Flat STmite package height | 0.85 mm - Enables use in space-constrained PCB layouts including portable and automotive ECUs. |
| High-temperature operation | 175 °C max junction temperature - Eliminates need for thermal derating in hot environments. |
| Low dynamic resistance | 0.076 Ω - Minimizes clamping voltage overshoot during high-current transients (e.g., load dump). |
| IEC 61000-4-2 Level 4 compliance | ±30 kV contact/air discharge - Passes full automotive EMC test without external filtering. |
| Planar silicon construction | Stable VBR vs. temperature (αT = 5.9 × 10⁻⁴ /°C) - Predictable clamping across operating range. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs from battery load dump and ESD events in vehicle door modules. IC Role / Device Role / Timing Role: Primary unidirectional TVS clamp on 12 V supply input and LIN signal line. Use Value: Clamps surges to ≤10.3 V while sustaining 38.8 A, preventing latch-up or damage to 5 V tolerant transceivers. | Use Scenario: Safeguarding analog output lines (4–20 mA) and digital I/O of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff-rated TVS on sensor supply and signal traces exposed to relay switching noise. Use Value: 6.0 V VRM matches common sensor supply rails; 0.076 Ω RD ensures fast response to <100 ns transients. |
| USB-C Power Delivery Port | Smart Meter Communication Interface |
Use Scenario: Secondary overvoltage protection on VBUS line downstream of primary protection, guarding USB PD controller ICs. IC Role / Device Role / Timing Role: Fast-clamping TVS placed adjacent to PD controller to suppress residual transients after front-end filtering. Use Value: 10.3 V clamping aligns with 5 V logic tolerance of PD controllers; 0.85 mm height avoids interference with connector stacking. | Use Scenario: Protecting RS-485 transceivers and microcontroller UART pins in utility smart meters subjected to lightning-induced surges on communication lines. IC Role / Device Role / Timing Role: Unidirectional TVS on differential data lines and isolated power rails. Use Value: 400 W rating handles 8/20 µs surges per IEC 61000-4-5; 175 °C rating supports sealed meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A | DO-214AC package (2.7 mm height), 400 W rating, VBR = 6.67–7.37 V, VCL = 10.5 V @ 38.3 A | Larger footprint and height; less suitable for ultra-thin designs | Select when board space allows taller profile and legacy DO-214AC assembly is preferred. |
| 1.5SMC6.0A | DO-214AB package (2.4 mm height), 1500 W rating, VBR = 6.67–7.37 V, VCL = 10.3 V @ 145 A | Higher power but larger size; higher leakage (50 µA max) | Choose only if >1 kW surge immunity is required and thermal mass permits larger case. |
Compared with SMAJ6.0A and 1.5SMC6.0A, the SMM4F6.0A-TR provides identical clamping performance in a 65% lower profile package, enabling direct replacement in space-critical automotive and portable designs without sacrificing ESD or surge margin.
Availability
SMM4F6.0A-TR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, USB-C power delivery systems, and smart meter communication interfaces requiring stable component supply and long-term lifecycle support.
Supply support for SMM4F6.0A-TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering intelligent power, sensing, and control solutions for automotive, industrial, and consumer markets.
The SMM4F series belongs to ST's STmite Flat TVS portfolio, engineered specifically for high-reliability, low-profile surge protection in thermally demanding and space-constrained applications such as automotive ECUs and industrial IoT edge nodes.
FAQ
What is the maximum clamping voltage of SMM4F6.0A-TR under a 10/1000 µs surge?
The maximum clamping voltage is 10.3 V at 38.8 A for a 10/1000 µs waveform, measured at 25 °C ambient. This value increases with junction temperature at a coefficient of 5.9 × 10⁻⁴ /°C, reaching approximately 11.2 V at 125 °C junction temperature per datasheet calculation.
Is SMM4F6.0A-TR suitable for bidirectional signal line protection?
No - it is a unidirectional TVS diode intended for DC power rail or single-polarity signal protection. For bidirectional lines such as USB D+/D− or RS-485, a bidirectional variant like SMM4F6.0C-TR (not offered in this series) or alternate part must be used.
Does SMM4F6.0A-TR meet automotive AEC-Q200 stress testing requirements?
While not AEC-Q200 qualified per se, the device meets critical automotive-grade reliability standards including J-STD-020 MSL level 1, JESD22-B102 E3 solderability, and IEC 61000-4-2 ±30 kV ESD - making it widely deployed in non-safety-critical automotive modules where qualification is customer-validated.
What is the recommended PCB footprint for SMM4F6.0A-TR?
The official ST-recommended footprint has pad length 2.04 mm, pad width 0.75 mm, spacing 0.85 mm, and copper area per pad ≥0.7 cm² to maintain thermal resistance ≤2.5 °C/W - critical for sustaining 160 W power dissipation at 175 °C junction temperature.
SMM4F6.0A-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-222AA
- Series:
- SMM4F, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.7V
- Current - Peak Pulse (10/1000µs):
- 170A (8/20µs)
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- STmite Flat (DO222-AA)
SMM4F6.0A-TR FAQ
1.How can I place an order for SMM4F6.0A-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMM4F6.0A-TR 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 SMM4F6.0A-TR reliable?
The price and inventory of SMM4F6.0A-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMM4F6.0A-TR is usually 5 days.
3.What payment methods are accepted for SMM4F6.0A-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMM4F6.0A-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMM4F6.0A-TR?
SMM4F6.0A-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMM4F6.0A-TR 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 SMM4F6.0A-TR?
For technical support, including SMM4F6.0A-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMM4F6.0A-TR requirements.
6.How does Aetrix verify that SMM4F6.0A-TR is sourced from the original manufacturer or authorized distributors?
All SMM4F6.0A-TR 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 SMM4F6.0A-TR meets industry standards.
7.What is the process for return or replacement of SMM4F6.0A-TR?
All SMM4F6.0A-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMM4F6.0A-TR, 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 SMM4F6.0A-TR part is unused and in its original packaging.
Return procedure for SMM4F6.0A-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMM4F6.0A-TR Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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