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Vishay General Semiconductor - Diodes Division SMA6F110A-M3/H
- Part No.:
- SMA6F110A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F110A-M3/H.pdf
- Description:
- 600W,110V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,991
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Product details
Overview
SMA6F110A-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 110 V stand-off voltage (VWM), 122–135 V breakdown voltage (VBR), 177 V maximum clamping voltage (VC) at 3.4 A (10/1000 μs), 600 W peak pulse power rating, and IEC 61000-4-2 Level 4 ESD immunity (15 kV air / 8 kV contact).
For engineers reviewing the SMA6F110A-M3/H datasheet, SMA6F110A-M3/H pinout, SMA6F110A-M3/H application, or SMA6F110A-M3/H equivalent, key selection criteria include clamping performance under 10/1000 μs surge, thermal derating on FR4 PCB, unidirectional polarity, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on consumer, industrial, and telecom signal lines.
Technical Context
This TVS diode operates as a voltage-clamped overvoltage protection device, leveraging Zener avalanche breakdown to divert transient energy away from downstream ICs or MOSFETs. Its unidirectional configuration provides forward conduction only during positive surges relative to cathode, with reverse leakage current limited to ≤0.2 μA at 110 V stand-off voltage and junction temperature up to +175 °C.
The device uses a silicon planar junction structure optimized for low dynamic resistance (RD = 12.4 Ω typical), enabling precise clamping response across surge currents from 1 A to 3.4 A (10/1000 μs). Thermal resistance junction-to-ambient is 120–150 °C/W on standard FR4 PCB, supporting stable operation under repetitive transient stress when mounted per JEDEC 51-2A footprint guidelines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 122 V / 135 V at 1 mA - Ensures reliable turn-on above system operating voltage with margin |
| VC @ IPPM | 177 V at 3.4 A (10/1000 μs) - Limits voltage seen by protected circuit during standardized surge |
| PPPM (10/1000 μs) | 600 W - Sustains single high-energy transients without failure on typical PCB layout |
| ID @ VWM | ≤ 0.2 μA - Negligible leakage current preserves signal integrity and power efficiency |
| TJ max. | +175 °C - Enables use in high-temperature industrial environments without derating |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV air / 8 kV contact - Meets stringent end-equipment ESD immunity requirements |
Pinout & Package
Package: SlimSMA (DO-221AC), surface-mount, halogen-free, RoHS-compliant, MSL Level 1, matte tin-plated leads, 0.95 mm typical height, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (reverse-biased side) | Connected to protected line; conducts surge current to ground when V > VBR |
| Cathode | Reference terminal (marked with band) | Connected to system ground or lower-potential rail; defines unidirectional clamping polarity |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (0.95 mm height) | Enables use in space-constrained portable and ultra-thin electronics without compromising board clearance |
| Peak pulse power: 600 W (10/1000 μs) | Provides robust protection against common industrial and automotive load-dump transients |
| Dynamic resistance: 12.4 Ω | Ensures tight clamping voltage control across varying surge amplitudes for predictable circuit protection |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling |
| IEC 61000-4-2 Level 4 ESD rating | Meets end-product compliance requirements for handheld and field-deployable equipment |
Applications
| Industrial Motor Control | Telecom Power Interface |
|---|---|
Use Scenario: Protecting gate drivers and microcontrollers from inductive kickback during relay or solenoid switching in PLC modules. IC Role / Device Role: Unidirectional TVS placed between MOSFET gate and source to clamp negative-going transients. Use Value: Prevents gate oxide damage and logic upset by limiting voltage to ≤177 V during 3.4 A 10/1000 μs surges. | Use Scenario: Safeguarding Ethernet PHY power rails and data lines against lightning-induced surges in outdoor base stations. IC Role / Device Role: Standoff-rated TVS on 12 V bias rail upstream of DC-DC converter input. Use Value: Maintains 110 V operating margin while clamping 600 W transients to prevent regulator latch-up or capacitor rupture. |
| Automotive Body Control Module | Consumer Appliance Sensor Hub |
Use Scenario: Shielding LIN bus transceivers and MCU I/O pins from battery dump and load-switch noise in door module ECUs. IC Role / Device Role: Unidirectional TVS on 12 V supply line feeding microcontroller peripherals. Use Value: Withstands 175 °C junction temperature and meets AEC-Q200-relevant thermal cycling durability via SlimSMA package robustness. | Use Scenario: Guarding analog sensor inputs (e.g., temperature, humidity) against ESD events during user interaction in smart home hubs. IC Role / Device Role: Low-leakage (≤0.2 μA) TVS on signal path between sensor and ADC input. Use Value: Preserves measurement accuracy while passing IEC 61000-4-2 Level 4 contact discharge (8 kV) without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F110A-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" | Identical protection function; suited for high-volume automated assembly requiring larger reels | Select SMA6F110A-M3/6B when optimizing for feeder change frequency and minimizing line stoppages in mass production. |
| SMA6F100A-M3/H | Lower VWM (100 V) and VBR (111–123 V); clamps at 162 V (3.7 A); same package and thermal specs | Better suited for 90–100 V nominal systems where tighter clamping margin is required | Choose SMA6F100A-M3/H if system operating voltage is ≤100 V and lower clamping voltage is prioritized over headroom. |
Compared with SMA6F110A-M3/H, SMA6F110A-M3/6B offers identical protection performance with higher reel quantity for throughput-critical lines, while SMA6F100A-M3/H trades 10 V stand-off margin for 15 V lower clamping voltage-making it preferable in lower-voltage rails where overvoltage headroom is constrained.
Availability
SMA6F110A-M3/H is available at Aetrix Electronics and suitable for industrial motor control, telecom power interface, automotive body control modules, and consumer appliance sensor hubs requiring stable component supply and long-term obsolescence management.
Supply support for SMA6F110A-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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and rugged packaging.
The SMA6F series is part of Vishay's TRANSZORB® TVS platform, 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 SMA6F110A-M3/H under a 10/1000 μs surge?
The SMA6F110A-M3/H has a maximum clamping voltage (VC) of 177 V when subjected to a 3.4 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions at TA = 25 °C and ensures predictable overvoltage limiting for downstream components. The SMA6F110A-M3/H maintains this clamping performance across its specified operating temperature range, supported by its 12.4 Ω dynamic resistance.
Is the SMA6F110A-M3/H suitable for lead-free reflow soldering processes?
Yes, the SMA6F110A-M3/H is rated for lead-free reflow with a maximum peak temperature of 260 °C and complies with MSL Level 1 per J-STD-020. Its matte tin-plated terminals meet J-STD-002 and JESD22-B102 solderability standards, and the device passes JESD201 Class 2 whisker testing. The SMA6F110A-M3/H requires no pre-baking prior to SMT assembly under standard conditions.
How does the SMA6F110A-M3/H differ from bidirectional TVS diodes?
The SMA6F110A-M3/H is unidirectional and functions only as a reverse-biased Zener clamp-conducting surge current from anode to cathode when reverse voltage exceeds VBR. Unlike bidirectional variants, it does not suppress positive transients on the cathode side. This makes the SMA6F110A-M3/H ideal for DC-biased lines like power rails or single-ended signal paths where polarity is fixed and forward conduction must be avoided.
What is the thermal resistance of the SMA6F110A-M3/H on a standard FR4 PCB?
The SMA6F110A-M3/H exhibits a typical junction-to-ambient thermal resistance (RθJA) of 120–150 °C/W when mounted on a standard FR4 PCB with 2 oz. copper and JEDEC 51-2A footprint. This value supports continuous power dissipation up to 1.0 W at 25 °C ambient and derates linearly above that temperature, enabling reliable operation in industrial enclosures up to +85 °C ambient.
Can the SMA6F110A-M3/H replace SMA6F110A-M3/6B in a design?
Yes, the SMA6F110A-M3/H and SMA6F110A-M3/6B share identical electrical, thermal, and mechanical specifications-the only difference is packaging format (3,500 pcs/reel on 7″ tape vs. 14,000 pcs/reel on 13″ tape) and associated package code suffix. No PCB layout, schematic, or performance changes are needed when substituting SMA6F110A-M3/H for SMA6F110A-M3/6B, as both use the same SlimSMA (DO-221AC) footprint and marking.
SMA6F110A-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):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 3.4A
- 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)
SMA6F110A-M3/H FAQ
1.How can I place an order for SMA6F110A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F110A-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 SMA6F110A-M3/H reliable?
The price and inventory of SMA6F110A-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 SMA6F110A-M3/H is usually 5 days.
3.What payment methods are accepted for SMA6F110A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F110A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F110A-M3/H?
SMA6F110A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F110A-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 SMA6F110A-M3/H?
For technical support, including SMA6F110A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F110A-M3/H requirements.
6.How does Aetrix verify that SMA6F110A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMA6F110A-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 SMA6F110A-M3/H meets industry standards.
7.What is the process for return or replacement of SMA6F110A-M3/H?
All SMA6F110A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F110A-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 SMA6F110A-M3/H part is unused and in its original packaging.
Return procedure for SMA6F110A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F110A-M3/H Tags
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