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SMA6F16A-M3/6A
Vishay General Semiconductor - Diodes Division
TVS DIODE 16VWM 29.5VC DO221AC
10057 Pcs New Original In Stock
29.5V Clamp 119A (8/20µs) Ipp Tvs Diode Surface Mount DO-221AC (SlimSMA)
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5.0 / 5.0
- (344 Ratings)
SMA6F16A-M3/6A
Product Overview
1015585
DiGi Electronics Part Number
SMA6F16A-M3/6A-DGManufacturer
Vishay General Semiconductor - Diodes Division
SMA6F16A-M3/6A
Description
TVS DIODE 16VWM 29.5VC DO221ACInventory
10057 Pcs New Original In Stock
29.5V Clamp 119A (8/20µs) Ipp Tvs Diode Surface Mount DO-221AC (SlimSMA)
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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SMA6F16A-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)
16V
Voltage - Breakdown (Min)
17.8V
Voltage - Clamping (Max) @ Ipp
29.5V
Current - Peak Pulse (10/1000µs)
119A (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
SMA6F16
Datasheet & Documents
HTML Datasheet
SMA6F16A-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)
de desembre 02, 2025
Je suis pleinement satisfait de leur support après-vente, c’est rassurant.
de desembre 02, 2025
DiGi Electronics’ dedication to customer satisfaction is evident in every interaction I have with them.
de desembre 02, 2025
I’m consistently impressed with how promptly they address my after-sales concerns.
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Frequently Asked Questions (FAQ)
Can the SMA6F16A-M3/6A be used as a direct replacement for the TPSMA6L16A in a high-temperature automotive environment, and what are the key differences in clamping performance under transient surges?
Yes, the SMA6F16A-M3/6A can serve as a functional replacement for the TPSMA6L16A in high-temperature environments due to its identical DO-221AC package and matching reverse standoff voltage (16V). However, the SMA6F16A-M3/6A has a tighter breakdown voltage range (min 17.8V) and a lower maximum clamping voltage (29.5V at Ipp) compared to typical TPSMA6L16A variants, which may clamp closer to 32V. This results in better protection for sensitive downstream components. Ensure PCB layout supports the 119A 8/20µs surge capability and verify thermal performance near the upper end of its 175°C TJ limit in under-hood applications.
How does the SMA6F16A-M3/6A perform in repetitive ESD events versus single high-energy transients, and what design precautions should be taken to avoid latent failure?
The SMA6F16A-M3/6A is rated for 4000W peak pulse power (8/20µs), making it robust for both ESD and surge events. However, repetitive ESD strikes below the peak rating can cause cumulative degradation if the diode doesn't fully recover thermally between events. To mitigate risk, ensure minimum trace inductance to maintain fast turn-on, use thermal relief pads to aid heat dissipation, and avoid placing the SMA6F16A-M3/6A in positions exposed to frequent human contact without upstream current-limiting resistors in signal paths. Monitor junction temperature in high-cycle scenarios to prevent parametric drift.
What are the key layout and thermal considerations when using the SMA6F16A-M3/6A in a compact surface-mount design with limited copper area?
Due to the SMA6F16A-M3/6A’s high peak current capability (119A), inadequate copper can lead to thermal overstress or inductance that delays clamping. Use at least 2 oz copper and connect the cathode/anode pads to large ground/power planes with multiple vias to improve heat dissipation and current handling. Avoid narrow traces; instead, use thermal land patterns per DO-221AC recommendations. In tightly packed boards, consider derating pulse handling by 20–30% below the 4000W rating if airflow or adjacent heat sources are uncontrolled.
Can the SMA6F16A-M3/6A reliably protect a 16V rail in a 24V industrial control system during load dump events, and what are the limitations?
The SMA6F16A-M3/6A is not ideal for protecting 16V rails in 24V systems during load dump, which can reach 40–100V for hundreds of milliseconds. Its 29.5V clamping voltage is too low relative to nominal 24V, risking conduction during normal operation, and its 4000W rating is intended for short pulses (8/20µs), not sustained energy. For such applications, pair the SMA6F16A-M3/6A with a series PTC or use a higher standoff TVS like SMAJ24A-TP for primary clamping. Use the SMA6F16A-M3/6A only for secondary ESD or fast transients downstream of a bulk regulator.
What are the failure mode risks of the SMA6F16A-M3/6A when subjected to sustained overvoltage slightly above 17.8V, and how does it compare to the SMAJ16A-TP in robustness?
If the SMA6F16A-M3/6A is exposed to sustained overvoltage above its 17.8V breakdown threshold, it may enter continuous conduction, leading to thermal runaway due to excessive power dissipation in the Zener region. Unlike the SMAJ16A-TP, which is designed for higher surge robustness (400W vs. 4000W peak), the SMA6F16A-M3/6A excels in transient handling but lacks safe operating area for prolonged overvoltage. To prevent failure, use upstream overvoltage detection or crowbar circuits. Avoid using the SMA6F16A-M3/6A as a voltage regulator; it is not intended for steady-state conduction.
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SMA6F16A-M3/6A CAD Models
Vishay General Semiconductor - Diodes Division SMA6F16A-M3/6A PCB symbols & footprints
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