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STMicroelectronics SMA6F5.0A-TR
- Part No.:
- SMA6F5.0A-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F5.0A-TR.pdf
- Description:
- TVS DIODE 5VWM 13.4VC SMAFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:3,112
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Product details
Overview
SMA6F5.0A-TR from STMicroelectronics is a unidirectional Transil™ TVS diode in SMAflat (DO-221AC) package, designed for electrostatic discharge and transient overvoltage protection in low-leakage, high-reliability applications. It features 5.0 V stand-off voltage, 6.74 V max clamping voltage at 10 A (10/1000 µs), 0.2 µA leakage at 25 °C, and 175 °C maximum junction temperature - deployed in industrial power supplies and automotive body control modules.
For engineers reviewing the SMA6F5.0A-TR datasheet, SMA6F5.0A-TR pinout, SMA6F5.0A-TR application, or SMA6F5.0A-TR equivalent, key selection criteria include clamping voltage margin at 10 A, thermal resistance (20 °C/W junction-to-leads), unidirectional polarity marking, JEDEC DO-221AC footprint compliance, and IEC 61000-4-2 Level 4 ESD robustness (15 kV air / 8 kV contact).
Technical Context
This device uses planar junction technology to achieve low dynamic resistance (0.029 Ω) and stable breakdown behavior across temperature. Its unidirectional configuration enables asymmetric surge handling with cathode-banded polarity, supporting DC-biased signal and power rail protection where reverse conduction must be blocked.
The SMAflat package integrates non-exposed pad construction per IPC 7531, minimizing PCB area while maintaining thermal performance via 20 °C/W junction-to-leads resistance. Operation up to 175 °C junction temperature supports use in thermally constrained environments such as enclosed SMPS and under-hood automotive electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage | 5.0 V - Maximum continuous reverse voltage before significant conduction begins; sets minimum operating margin for 5 V systems. |
| Breakdown Voltage | 6.40–7.07 V @ 1 mA - Confirmed voltage range at rated test current; ensures predictable turn-on during transients. |
| Clamping Voltage | 9.2 V @ 10 A (10/1000 µs) - Peak voltage seen by protected circuit during 600 W surge; defines safety margin for downstream ICs. |
| Leakage Current | 0.2 µA @ 5.0 V, 25 °C - Enables low-power standby operation without battery drain or signal distortion. |
| Peak Pulse Power | 600 W (10/1000 µs), 4 kW (8/20 µs) - Supports IEC 61000-4-4 surge immunity testing and lightning-induced transient suppression. |
| Junction Temperature | -55 to +175 °C - Allows deployment in extended-temperature industrial and automotive under-hood locations without derating. |
| Thermal Resistance | 20 °C/W (junction-to-leads) - Determines thermal rise under sustained surge duty; informs PCB copper pour design for reliability. |
Pinout & Package
Package: SMAflat (JEDEC DO-221AC), surface-mount, non-exposed pad, cathode indicated by band. Dimensions: 4.80–5.60 mm length (E), 2.25–2.95 mm width (D), 0.90–1.10 mm height (A), compliant with IPC 7531 footprint standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected line side; conducts during positive transients when cathode is biased higher. |
| Cathode (banded end) | Reverse-biased reference terminal | Connected to ground or lower-potential rail; defines polarity and clamping reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Low clamping voltage | 9.2 V at 10 A (10/1000 µs) - Reduces stress on 5 V logic and analog ICs during surge events. |
| High junction temperature rating | 175 °C max Tj - Enables reliable operation in sealed enclosures and near heat sources without thermal shutdown. |
| Ultra-low leakage | 0.2 µA @ VRM - Preserves battery life in always-on IoT sensors and avoids false triggering in high-impedance interfaces. |
| IEC 61000-4-2 Level 4 certified | 15 kV air / 8 kV contact discharge - Meets industrial and automotive ESD immunity requirements out-of-box. |
| ECOPACK®2 compliance | RoHS-compliant, halogen-free, UL94V-0 flammability - Supports environmental compliance for global OEM programs. |
Applications
| Industrial Power Supplies | Automotive Body Control Modules |
|---|---|
Use Scenario: Protecting 5 V microcontroller I/O lines and CAN transceiver power rails from load dump and ESD in 24 V systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between supply rail and ground, triggered within nanoseconds of transient onset. Use Value: Clamps surges to ≤9.2 V, preserving MCU reset logic integrity and preventing latch-up during ISO 7637-2 pulse 5a events. | Use Scenario: Safeguarding LIN bus transceivers and door module sensors against ESD from human contact in cabin environments. IC Role / Device Role / Timing Role: Standoff-limited transient suppressor on LIN data line, leveraging 5.0 V VRM to match bus voltage tolerance. Use Value: 0.2 µA leakage prevents bus pull-down, while 15 kV air discharge rating meets ISO 10605 Class 3B requirements. |
| Smart Meter Front-End Circuits | Industrial PLC Digital I/O Cards |
Use Scenario: Shielding metering IC analog inputs and RTC backup lines from induced surges on AC mains-connected PCBs. IC Role / Device Role / Timing Role: Low-capacitance (typ. 1000 pF @ 1 V) unidirectional clamp on 5 V reference rails. Use Value: Maintains signal fidelity during 600 W transients due to <0.03 Ω dynamic resistance and minimal voltage overshoot. | Use Scenario: Protecting optocoupler input LEDs and isolated GPIO lines in DIN-rail mounted controllers exposed to factory EMI. IC Role / Device Role / Timing Role: Primary-level TVS on 5 V isolated supply outputs, coordinated with secondary-side filtering. Use Value: 175 °C Tj rating allows uninterrupted operation in cabinets exceeding 85 °C ambient, avoiding thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Same SMA package, but 400 W peak power (10/1000 µs); higher clamping voltage (11.2 V @ 10 A) | Limited to lower-energy transients; less margin for 5 V logic protection | Select when cost sensitivity outweighs clamping performance and thermal stress is low |
| SMCJ5.0A | Higher power (1500 W), larger SMC (DO-214AB) package; clamping voltage 10.8 V @ 10 A | Requires more PCB area; better suited for primary-side AC/DC input protection | Choose for higher-surge environments where board space permits larger footprint |
Compared with SMAJ5.0A and SMCJ5.0A, the SMA6F5.0A-TR delivers superior clamping (9.2 V vs. ≥10.8 V) and thermal capability (175 °C vs. 150 °C) in the same compact SMAflat outline, making it optimal for space-constrained, high-temperature 5 V rail protection.
Availability
SMA6F5.0A-TR is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, smart meter front-end circuits, and industrial PLC digital I/O cards requiring stable component supply and long-term lifecycle support.
Supply support for SMA6F5.0A-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, designing and manufacturing analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
The SMA6F Transil™ series targets high-reliability transient protection in thermally demanding applications, emphasizing low leakage, high junction temperature operation, and IEC/MIL-standard ESD robustness for next-generation power electronics.
FAQ
What is the maximum clamping voltage of SMA6F5.0A-TR at 10 A (10/1000 µs)?
The maximum clamping voltage is 9.2 V at 10 A for a 10/1000 µs waveform, measured per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Does SMA6F5.0A-TR support bidirectional transient suppression?
No - SMA6F5.0A-TR is a unidirectional TVS diode, with polarity marked by a cathode band. It conducts only during positive transients relative to its cathode. For bidirectional protection, ST offers the SMA6F5.0A variant's symmetrical counterpart, SMA6F5.0CA, which clamps both polarities.
How does the SMAflat package differ from standard SMA (DO-214AC)?
The SMAflat (DO-221AC) has a reduced height profile (0.90–1.10 mm vs. ~2.3 mm for DO-214AC) and non-exposed thermal pad, enabling tighter stacking and improved mechanical stability in automated assembly. Its footprint matches IPC 7531, but thermal resistance is optimized for lead-based conduction rather than pad-based sinking.
Is SMA6F5.0A-TR qualified for automotive applications?
While not AEC-Q200 qualified, SMA6F5.0A-TR meets ISO 10605 (25 kV HBM) and IEC 61000-4-2 Level 4 ESD requirements, and operates up to 175 °C - making it suitable for non-safety-critical automotive subsystems like body electronics and infotainment power rails, subject to customer qualification.
SMA6F5.0A-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-221AC, SMA Flat Leads
- Series:
- SMA6F, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 298A (8/20µs)
- Power - Peak Pulse:
- 600W
- 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:
- SMAflat
SMA6F5.0A-TR FAQ
1.How can I place an order for SMA6F5.0A-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F5.0A-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 SMA6F5.0A-TR reliable?
The price and inventory of SMA6F5.0A-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6F5.0A-TR is usually 5 days.
3.What payment methods are accepted for SMA6F5.0A-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F5.0A-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F5.0A-TR?
SMA6F5.0A-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F5.0A-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 SMA6F5.0A-TR?
For technical support, including SMA6F5.0A-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F5.0A-TR requirements.
6.How does Aetrix verify that SMA6F5.0A-TR is sourced from the original manufacturer or authorized distributors?
All SMA6F5.0A-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 SMA6F5.0A-TR meets industry standards.
7.What is the process for return or replacement of SMA6F5.0A-TR?
All SMA6F5.0A-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F5.0A-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 SMA6F5.0A-TR part is unused and in its original packaging.
Return procedure for SMA6F5.0A-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F5.0A-TR Tags
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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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D12V0L1B2LP-7B
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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