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Vishay General Semiconductor - Diodes Division SMA6F58A-M3/H
- Part No.:
- SMA6F58A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F58A-M3/H.pdf
- Description:
- 600W,58V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,103
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Product details
Overview
SMA6F58A-M3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SlimSMA (DO-221AC) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR), 93.8 V maximum clamping voltage at 3.53 A (10/1000 μs), 600 W peak pulse power, and IEC 61000-4-2 level 4 ESD immunity (15 kV air / 8 kV contact).
For engineers reviewing the SMA6F58A-M3/H datasheet, SMA6F58A-M3/H pinout, SMA6F58A-M3/H application, or SMA6F58A-M3/H equivalent, this device is selected for robust overvoltage protection on DC power rails and signal lines in industrial sensor interfaces, telecom power inputs, and automotive control modules where low-profile mounting and high surge resilience are required.
Technical Context
This TVS diode operates as a unidirectional Zener-based clamp, activating above its 58 V stand-off threshold to shunt transient energy to ground. Its dynamic resistance of 6.4 Ω (typ.) ensures rapid voltage limiting during 10/1000 μs surges up to 3.53 A, while maintaining low leakage current (≤0.2 μA at VWM) at normal operating conditions.
The device is rated for junction temperatures from –55 °C to +175 °C and meets MSL level 1 per J-STD-020 with 260 °C lead-free reflow compatibility. Its SlimSMA (DO-221AC) package delivers a typical height of 0.95 mm, enabling use in space-constrained PCB layouts without compromising thermal performance on FR4 boards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse working voltage before clamping begins |
| VBR min/max | 64.4 V / 71.2 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on margin |
| VC @ IPP | 93.8 V at 3.53 A (10/1000 μs) - Clamping voltage defining worst-case rail overshoot during surge |
| PPPM (10×1000 μs) | 600 W - Surge energy handling capacity for standard lightning waveform compliance |
| ESD rating | IEC 61000-4-2 level 4: 15 kV air / 8 kV contact - Validated electrostatic discharge resilience |
| Package | SlimSMA (DO-221AC) - 0.95 mm profile, halogen-free, RoHS-compliant, MSL level 1 |
| TJ max | +175 °C - Enables operation in under-hood automotive or high-temperature industrial environments |
Pinout & Package
SlimSMA (DO-221AC) is a two-terminal surface-mount package with cathode indicated by a color band. The device has no internal circuitry beyond the Zener junction; terminals serve purely as anode and cathode connections for unidirectional clamping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to protected line | Common connection to DC rail or signal trace requiring transient suppression |
| Cathode | Current exit point during reverse clamping; connected to ground reference | Low-inductance path to system ground essential for effective surge diversion |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile | 0.95 mm typical height enables placement beneath connectors or in tight board stacks |
| Automated placement compatible | Matte tin-plated leads meet J-STD-002 solderability and JESD22-B102 reliability standards |
| High-energy clamping | 600 W (10/1000 μs) and 4 kW (8/20 μs) ratings support IEC 61000-4-5 surge immunity testing |
| Robust ESD protection | Passes IEC 61000-4-2 level 4 - eliminates need for additional ESD components on exposed ports |
| Industrial-grade reliability | M3 suffix denotes halogen-free, RoHS-compliant construction and JESD201 class 2 whisker resistance |
Applications
| Industrial Sensor Interface | Telecom Power Input |
|---|---|
Use Scenario: Protecting analog output lines of temperature/pressure sensors in factory automation PLCs exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ADC input to clamp transients before signal conditioning circuitry. Use Value: Prevents ADC saturation and microcontroller reset events caused by >1 kV fast-rising transients on 24 V supply-coupled signal paths. | Use Scenario: Safeguarding primary-side DC-DC converter inputs in VoIP gateways subjected to AC mains surge coupling and Ethernet port ESD events. IC Role / Device Role / Timing Role: Stand-off-rated TVS installed across 48 V input rail to limit voltage excursions during 10/1000 μs surges up to 600 W. Use Value: Maintains stable 48 V bus operation during combined lightning-induced surges and contact-mode ESD, avoiding brownout resets. |
| Automotive Body Control Module | Consumer USB-C Power Delivery |
Use Scenario: Shielding LIN bus transceivers and window lift motor drivers in BCMs from load dump and jump-start transients. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to clamp 12 V rail spikes exceeding 58 V within nanoseconds. Use Value: Ensures functional safety compliance by limiting rail voltage to ≤93.8 V during 3.53 A transients, protecting downstream CAN/LIN ICs. | Use Scenario: Adding secondary-level surge protection on VBUS lines of USB-C PD adapters after primary MOV filtering. IC Role / Device Role / Timing Role: Fast-response unidirectional suppressor placed between PD controller and buck converter input to handle residual 8/20 μs surges. Use Value: Provides precise 58 V clamping threshold aligned with USB PD 3.0 specification limits, preventing overvoltage damage to silicon controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F58A-M3/6B | Same electrical specs; differs only in tape-and-reel packaging (14,000 pcs/reel vs. 3,500 pcs/reel) and package code "6B" instead of "H" | No functional difference; intended for high-volume automated assembly requiring larger reels | Select SMA6F58A-M3/6B when optimizing for SMT line efficiency with bulk reel feeding |
| SMA6F60A-M3/H | Higher VWM (60 V) and VBR (66.7–73.7 V); clamping voltage 96.8 V at 3.73 A; otherwise identical SlimSMA package and surge ratings | Better suited for 60 V nominal systems (e.g., certain telecom or industrial 48 V+ rails) where tighter margin above operating voltage is needed | Choose SMA6F60A-M3/H if design requires ≥2 V headroom above 58 V nominal rail or must meet stricter VBR tolerance bands |
Compared with SMA6F58A-M3/H, SMA6F58A-M3/6B offers identical protection performance with higher reel quantity for production throughput, while SMA6F60A-M3/H provides elevated voltage thresholds for systems operating closer to 60 V, enabling more precise clamping alignment without sacrificing surge capability or footprint.
Availability
SMA6F58A-M3/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom power inputs, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA6F58A-M3/H 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and application-specific optimization.
The SMA6F series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in space-constrained, high-reliability applications across industrial, automotive, and communications infrastructure.
FAQ
What is the maximum clamping voltage of the SMA6F58A-M3/H under a 10/1000 μs surge?
The SMA6F58A-M3/H exhibits a maximum clamping voltage (VC) of 93.8 V at a peak pulse current (IPP) of 3.53 A for the standard 10/1000 μs waveform. This value is measured per the manufacturer's test conditions and defines the upper voltage limit imposed on the protected circuit during such a transient event. The SMA6F58A-M3/H maintains this clamping performance across its specified operating temperature range and is validated per JEDEC test methods.
Does the SMA6F58A-M3/H support lead-free reflow soldering?
Yes, the SMA6F58A-M3/H is qualified for lead-free reflow soldering with a maximum peak temperature of 260 °C, meeting J-STD-020 moisture sensitivity level (MSL) 1 requirements. Its matte tin-plated terminals comply with J-STD-002 for solderability and JESD22-B102 for intermetallic reliability. The SMA6F58A-M3/H is also certified to JESD201 class 2 for whisker resistance, ensuring long-term solder joint integrity in industrial and automotive applications.
How does the SMA6F58A-M3/H differ from bidirectional TVS diodes?
The SMA6F58A-M3/H is a unidirectional TVS diode, meaning it functions as a Zener clamp only in reverse bias and conducts forward like a standard diode. Unlike bidirectional variants, it does not suppress transients on both polarities of an AC signal. This makes the SMA6F58A-M3/H ideal for DC power rails and single-polarity signal lines where polarity is fixed and forward conduction is acceptable. Its unidirectional architecture provides lower leakage and sharper knee characteristics than equivalent bidirectional parts.
What is the thermal resistance junction-to-ambient (RθJA) for the SMA6F58A-M3/H on a standard PCB?
The SMA6F58A-M3/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on a standard FR4 PCB with 2 oz. copper and the recommended footprint per JEDEC 51-2A. This value increases to 150 °C/W maximum under worst-case board layout conditions. The RθJA directly impacts steady-state power dissipation capability: at TA = 25 °C, the SMA6F58A-M3/H supports 1.0 W continuous power, derating linearly above that ambient temperature.
Can the SMA6F58A-M3/H be used in automotive under-hood applications?
Yes, the SMA6F58A-M3/H is rated for an operating junction temperature range of –55 °C to +175 °C, making it suitable for under-hood automotive environments where ambient temperatures may exceed 125 °C. Its SlimSMA package is qualified to MSL level 1 and withstands multiple reflow cycles, while its halogen-free, RoHS-compliant construction meets automotive material compliance requirements. The SMA6F58A-M3/H is commonly deployed in body control modules and engine control interface circuits for transient suppression.
SMA6F58A-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-221AC, SMA Flat Leads
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.8V
- Current - Peak Pulse (10/1000µs):
- 6.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-221AC (SlimSMA)
SMA6F58A-M3/H FAQ
1.How can I place an order for SMA6F58A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F58A-M3/H 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 SMA6F58A-M3/H reliable?
The price and inventory of SMA6F58A-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6F58A-M3/H is usually 5 days.
3.What payment methods are accepted for SMA6F58A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F58A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F58A-M3/H?
SMA6F58A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F58A-M3/H 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 SMA6F58A-M3/H?
For technical support, including SMA6F58A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F58A-M3/H requirements.
6.How does Aetrix verify that SMA6F58A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMA6F58A-M3/H 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 SMA6F58A-M3/H meets industry standards.
7.What is the process for return or replacement of SMA6F58A-M3/H?
All SMA6F58A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F58A-M3/H, 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 SMA6F58A-M3/H part is unused and in its original packaging.
Return procedure for SMA6F58A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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