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The SMA4F Transil series are designed to protect sensitive circuits against transient surges.
The planar technology makes it compatible with high-end circuits where low leakage current and high junction temperature are required to provide long term reliability and stability.
Key Features
- Peak pulse power: 400 W (10/1000 μs) and 2.5 kW (8/20 μs)
- Flat and thin package: 1 mm
- Stand-off voltage range from 5 V to 188 V
- Unidirectional type
- Low leakage current: 0.2 μA at 25 °C and 1 μA at 85 °C
- Operating Tj max: 175 °C
- High power capability at Tj max.: up to 200 W (10/1000 µs)
- Lead finishing: matte tin plating
Sample & Buy
| Part Number | Stand-off voltage (V) (nom) | Directionality | Package | Packing Type | Marketing Status | ECCN (US) | Country of Origin | Budgetary Price (US$)*/Qty | Order from ST | Order from Distributors |
|---|---|---|---|---|---|---|---|---|---|---|
| SMA4F22A | 22 | Uni-Directional | SMA Flat | Tape And Reel | Active | EAR99 | MOROCCO | 0.062 / 1k | Get sample | Check Availability |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
Featured Videos
Introduction to surges – EOS and ESD – definition, standards, effects and root cause
Design Tools
Mobile Applications
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Picture Part number Manufacturer Description 
ST Protection Finder ST Protection product finder application for Android, iOS and Wandoujia Part NumberProtection product finder application for Android, iOS and Wandoujia
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| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| SMA4F22A | Active | SMA Flat | Industrial | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
