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Vishay General Semiconductor - Diodes Division SMA6F58A-M3/I
- Part No.:
- SMA6F58A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F58A-M3/I.pdf
- Description:
- 600W,58V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,979
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Product details
Overview
SMA6F58A-M3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SlimSMA (DO-221AC) package, designed for clamping voltage transients on power and signal lines. It features 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR), 93.8 V maximum clamping voltage at 6.4 A (10/1000 μs), 600 W peak pulse power, and IEC 61000-4-2 level 4 ESD protection (15 kV air / 8 kV contact).
For engineers reviewing the SMA6F58A-M3/I datasheet, SMA6F58A-M3/I pinout, SMA6F58A-M3/I application, or SMA6F58A-M3/I equivalent, key selection criteria include clamping performance under 10/1000 μs surge, thermal derating above 25 °C, unidirectional polarity, SlimSMA footprint compatibility, and industrial-grade halogen-free RoHS compliance.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, activating when reverse voltage exceeds VBR to divert transient current away from downstream ICs or MOSFETs. Its low dynamic resistance (6.4 Ω) ensures tight clamping control, while its 175 °C max junction temperature supports operation in high-ambient industrial environments.
The device uses Zener-based avalanche breakdown with a temperature coefficient of +10.4 × 10⁻⁴/°C, enabling predictable VBR drift over temperature. Its 0.95 mm profile and matte tin-plated leads meet J-STD-002 solderability and JESD201 class 2 whisker resistance requirements for automated SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - Ensures reliable turn-on margin above VWM for robust surge response |
| VC @ IPPM | 93.8 V at 6.4 A (10/1000 μs) - Limits downstream voltage stress during common lightning/surge events |
| PPPM (10/1000 μs) | 600 W - Sustains standard IEC 61000-4-5 surge energy without failure |
| ID @ VWM | 0.2 μA - Negligible leakage current preserves battery life and signal integrity in low-power circuits |
| ESD Rating | IEC 61000-4-2 level 4: 15 kV air / 8 kV contact - Protects against human-body model discharges in end-user environments |
| Package | SlimSMA (DO-221AC), 0.95 mm height - Enables ultra-thin PCB designs and high-density layout |
Pinout & Package
Package: SlimSMA (DO-221AC), surface-mount, unidirectional, cathode indicated by color band. Dimensions: 4.15–4.35 mm length × 2.50–2.70 mm width × 0.95 mm height. Molding compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during clamping | Connected to protected line (e.g., VBUS, signal trace); conducts surge current to ground when V > VBR |
| Cathode | Current exit during clamping | Connected to system ground; polarity marking (band) prevents reverse installation in unidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SlimSMA package | 0.95 mm height enables use in space-constrained consumer and portable electronics |
| High peak pulse power | 600 W (10/1000 μs) and 4 kW (8/20 μs) handles both slow and fast transients per IEC standards |
| Industrial-grade reliability | M3 suffix confirms halogen-free, RoHS-compliant, JESD201 class 2 whisker resistance, and MSL level 1 rating |
| Precision clamping | Dynamic resistance of 6.4 Ω minimizes voltage overshoot during high-current surges |
| Thermal robustness | 175 °C max junction temperature supports operation in automotive under-hood and industrial motor-control environments |
Applications
| USB Power Delivery Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 5 V–20 V USB PD input rails from load dump and hot-swap transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBUS and GND to clamp surges before they reach buck converter or USB controller. Use Value: 93.8 V clamping at 6.4 A limits stress on 24 V-rated input stages while maintaining <0.2 μA leakage for standby efficiency. | Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins against battery reverse connection and alternator load dump. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply rail and LIN signal line to absorb 100 V/50 ms transients per ISO 7637-2. Use Value: 58 V VWM matches nominal 12 V system with sufficient margin; 175 °C TJ max ensures reliability in engine compartment ambient conditions. |
| Industrial Sensor Signal Conditioning | Telecom Ethernet PHY Protection |
Use Scenario: Shielding analog sensor outputs (e.g., 4–20 mA loop, RS-485) from ESD and inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential signal pairs to suppress transients without distorting 100 kHz–1 MHz sensor bandwidth. Use Value: Sub-1 pF junction capacitance (typical, per family data) preserves signal integrity; 8 kV contact ESD rating meets IEC 61000-4-2 for field-serviceable equipment. | Use Scenario: Guarding 2.5 V/3.3 V Ethernet PHY I/O pins against lightning-induced surges on PoE-enabled ports. IC Role / Device Role / Timing Role: Primary clamping device on MDI lines, coordinated with secondary GDT or polymer PTC for multi-stage protection. Use Value: 600 W 10/1000 μs rating absorbs IEEE 802.3af PoE surge test energy; SlimSMA footprint allows placement directly at connector for shortest path to ground. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F58A-M3/H | Same electrical specs; differs only in tape-and-reel packaging (3500 pcs vs. 14000 pcs per reel) | No functional difference; H variant uses 7" reel, I variant uses 13" reel | Select SMA6F58A-M3/I for high-volume production requiring larger reels and reduced changeover frequency |
| SMAJ58A-M3/5B | Higher clamping voltage (93.6 V vs. 93.8 V), same VWM/VBR, but in larger SMA (DO-214AC) package (2.4 mm height) | Less suitable for ultra-low-profile designs; higher thermal resistance (RθJA = 160 °C/W vs. 120–150 °C/W) | Choose SMA6F58A-M3/I where board height ≤1.0 mm is mandatory and thermal budget is constrained |
Compared with SMA6F58A-M3/H, the I suffix offers higher reel quantity for production efficiency; compared with SMAJ58A-M3/5B, SMA6F58A-M3/I delivers identical protection performance in 61% less vertical space and improved thermal coupling on FR4 PCBs.
Availability
SMA6F58A-M3/I is available at Aetrix Electronics and suitable for USB PD interfaces, automotive body control modules, industrial sensor conditioning, telecom Ethernet PHY protection, and other applications requiring stable component supply with guaranteed long-term continuity.
Supply support for SMA6F58A-M3/I 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, TVS, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The SMA6FxxA series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in space-constrained, high-reliability industrial and automotive systems using the SlimSMA package.
FAQ
What is the maximum clamping voltage of the SMA6F58A-M3/I under a 10/1000 μs surge?
The SMA6F58A-M3/I has a maximum clamping voltage (VC) of 93.8 V at 6.4 A for a 10/1000 μs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during such transients. The SMA6F58A-M3/I maintains this clamping performance across its specified operating temperature range, with derating applied above TA = 25 °C per Figure 2 in the datasheet.
Does the SMA6F58A-M3/I support bidirectional transient protection?
No, the SMA6F58A-M3/I is a unidirectional TVS diode, intended for DC or single-polarity signal line protection. Its design includes a cathode band marking and asymmetric IV characteristics optimized for reverse-biased clamping only. For bidirectional applications such as AC lines or differential buses, a dedicated bidirectional variant like SMA6F58CA-M3/I must be selected instead of the SMA6F58A-M3/I.
What is the thermal resistance junction-to-ambient (RθJA) for the SMA6F58A-M3/I?
The SMA6F58A-M3/I has a typical RθJA of 120 °C/W and a maximum of 150 °C/W when mounted on a standard FR4 PCB with 2 oz. copper and the recommended pad layout. This value assumes JEDEC 51-2A test conditions and is critical for calculating safe power dissipation limits at elevated ambient temperatures. The SMA6F58A-M3/I's thermal performance is enhanced by its SlimSMA package's low profile and efficient heat spreading.
Is the SMA6F58A-M3/I compliant with RoHS and halogen-free standards?
Yes, the SMA6F58A-M3/I carries the "M3" suffix, which certifies it as halogen-free, RoHS-compliant, and qualified to industrial grade standards. It meets material compliance per Vishay document 99912 and passes JESD201 class 2 whisker testing. The molding compound is UL 94 V-0 rated, and the matte tin-plated terminals comply with J-STD-002 solderability requirements - all confirmed for the SMA6F58A-M3/I.
How does the voltage temperature coefficient affect the SMA6F58A-M3/I's breakdown voltage?
The SMA6F58A-M3/I has a positive voltage temperature coefficient (αT) of +10.4 × 10⁻⁴/°C, meaning its breakdown voltage increases linearly with junction temperature. At 85 °C, VBR rises approximately 6.2% above its 25 °C value (64.4–71.2 V), ensuring consistent clamping margin across the full -55 °C to +175 °C operating range. This behavior is modeled by VBR(TJ) = VBR(25°C) × [1 + αT × (TJ − 25)], as defined in the SMA6F58A-M3/I datasheet.
SMA6F58A-M3/I 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/I FAQ
1.How can I place an order for SMA6F58A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F58A-M3/I 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/I reliable?
The price and inventory of SMA6F58A-M3/I 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/I is usually 5 days.
3.What payment methods are accepted for SMA6F58A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F58A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F58A-M3/I?
SMA6F58A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F58A-M3/I 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/I?
For technical support, including SMA6F58A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F58A-M3/I requirements.
6.How does Aetrix verify that SMA6F58A-M3/I is sourced from the original manufacturer or authorized distributors?
All SMA6F58A-M3/I 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/I meets industry standards.
7.What is the process for return or replacement of SMA6F58A-M3/I?
All SMA6F58A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F58A-M3/I, 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/I part is unused and in its original packaging.
Return procedure for SMA6F58A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F58A-M3/I Tags
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