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SMA6F11A-M3/6A
Vishay General Semiconductor - Diodes Division
TVS DIODE 11VWM 21.5VC DO221AC
10298 Pcs New Original In Stock
21.5V Clamp 172A (8/20µs) Ipp Tvs Diode Surface Mount DO-221AC (SlimSMA)
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5.0 / 5.0
- (461 Ratings)
SMA6F11A-M3/6A
Product Overview
1019324
DiGi Electronics Part Number
SMA6F11A-M3/6A-DGManufacturer
Vishay General Semiconductor - Diodes Division
SMA6F11A-M3/6A
Description
TVS DIODE 11VWM 21.5VC DO221ACInventory
10298 Pcs New Original In Stock
21.5V Clamp 172A (8/20µs) Ipp Tvs Diode Surface Mount DO-221AC (SlimSMA)
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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SMA6F11A-M3/6A Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
Tape & Reel (TR)
Series
TransZorb®
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
11V
Voltage - Breakdown (Min)
12.2V
Voltage - Clamping (Max) @ Ipp
21.5V
Current - Peak Pulse (10/1000µs)
172A (8/20µs)
Power - Peak Pulse
4000W (4kW)
Power Line Protection
No
Applications
General Purpose
Capacitance @ Frequency
-
Operating Temperature
-55°C ~ 175°C (TJ)
Mounting Type
Surface Mount
Package / Case
DO-221AC, SMA Flat Leads
Supplier Device Package
DO-221AC (SlimSMA)
Base Product Number
SMA6F11
Datasheet & Documents
HTML Datasheet
SMA6F11A-M3/6A-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Standard Package
3,500
Alternative Parts
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Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
物流速度真是超乎預期，購物體驗非常順暢，讓我感受到他們的專業與用心。
Dec 02, 2025
Der Versandprozess verlief unglaublich zügig, und die Verpackung war umweltgerecht. Sehr professionell.
Dec 02, 2025
I appreciate the durability of this product, which has endured daily use without deterioration.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the SMA6F11A-M3/6A for 12V automotive load dump protection?
When designing in the SMA6F11A-M3/6A for 12V automotive systems, a key risk is underestimating transient energy during load dump events, which can exceed 4000W. While the SMA6F11A-M3/6A has a 4kW peak pulse rating, it's rated for 8/20µs surges, whereas load dumps follow a slower 40ms–400ms waveform. This mismatch means the SMA6F11A-M3/6A may overheat even if peak power seems within spec. Always pair it with a robust thermal design or consider a hybrid protection scheme using a series current-limiting device. Verify performance under actual system-level surge testing per ISO 7637-2, as the SMA6F11A-M3/6A alone may not sustain repeated high-energy events.
How does the SMA6F11A-M3/6A compare to SMAJ11A-13-F in high-temperature industrial applications?
The SMA6F11A-M3/6A and SMAJ11A-13-F both handle 11V standoff and similar clamping voltages, but the SMA6F11A-M3/6A offers superior high-temperature performance with a junction rating up to 175°C versus 150°C for the SMAJ11A-13-F. In high-ambient environments like industrial motor drives or outdoor enclosures, the SMA6F11A-M3/6A's higher temperature tolerance reduces thermal derating concerns and improves long-term reliability. Additionally, the SMA6F11A-M3/6A has a tighter breakdown voltage range and is part of Vishay’s TransZorb® series, known for tighter process control. For designs operating above 125°C ambient, prefer the SMA6F11A-M3/6A with proper PCB thermal relief design.
Can the SMA6F11A-M3/6A be used as a drop-in replacement for TPSMA6L11A in a space-constrained consumer electronics design?
The SMA6F11A-M3/6A and TPSMA6L11A share the same DO-221AC (SlimSMA) package and electrical specs, making them functionally interchangeable. However, the SMA6F11A-M3/6A typically has lower production lead times and better global availability than the TPSMA6L11A, which is critical for volume manufacturing. One design consideration is that Vishay’s SMA6F11A-M3/6A specifies clamping performance at 8/20µs, while some TI parts like the TPSMA6L11A are tested at 10/1000µs—ensure your surge test regime matches datasheet conditions. Verify board land pattern compatibility and consider that the SMA6F11A-M3/6A has MSL 1 (unlimited), simplifying assembly handling versus moisture-sensitive alternatives.
What PCB layout practices should be followed when integrating the SMA6F11A-M3/6A for optimal ESD and surge protection?
To maximize protection effectiveness, place the SMA6F11A-M3/6A as close as possible to the entry point of transient threats (e.g., connectors or ports). Use wide, short traces to minimize inductance—avoid vias between the TVS and protected line. For the SMA6F11A-M3/6A, connect the cathode to a solid ground plane with multiple thermal vias to enhance heat dissipation during surge events. Keep sensitive high-impedance nodes away from TVS switching transients. Since the SMA6F11A-M3/6A has a clamping voltage of 21.5V max, ensure downstream components can tolerate this level briefly. A ground ring or shielding may be needed in high-noise environments to prevent secondary coupling.
What reliability concerns should be addressed when using the SMA6F11A-M3/6A in long-life industrial equipment?
For long-life industrial systems, the main reliability risk with the SMA6F11A-M3/6A is cumulative degradation from repeated sub-clamping threshold transients. While the device can handle up to 172A (8/20µs), frequent surges—even below breakdown—can cause gradual parameter shifts. Monitor leakage current trends in testing to detect early aging. Operate the SMA6F11A-M3/6A with margin: avoid continuous voltages above 11V standoff, especially at elevated temperatures, to prevent accelerated wear-out. Leverage its -55°C to 175°C operating range, but ensure PCB materials and solder joints support this span. The SMA6F11A-M3/6A’s RoHS3 compliance and MSL 1 rating support long-term storage and reflow reliability, making it suitable for field-deployed systems requiring 10+ year lifespans.
Quality Assurance (QC)
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SMA6F11A-M3/6A CAD Models
Vishay General Semiconductor - Diodes Division SMA6F11A-M3/6A PCB symbols & footprints
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