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Description
3M 3749-40 Ribbon Cable, Round Conductor Flat, Grey, 40 Core, 30 AWG, 0.051 mm�The 3749 series from 3M are round conductor flat cable. The ribbon cable has 30AWG solid conductors on 0. 025inch spacing that allows for mass termination. The Thermoplastic elastomer (TPE) insulation provides excellent transmission properties. Zippable for branching or discrete termination Meets SCSI 3 Fast 20 characteristic impedance requirements Gray colour insulation Tinned solid copper conductor Voltage rating of 150V Operating temperature range
The 3749 series from 3M are round conductor flat cable. The ribbon cable has 30AWG solid conductors on 0.025inch spacing that allows for mass termination. The Thermoplastic elastomer (TPE) insulation provides excellent transmission properties.
- Zippable for branching or discrete termination
- Meets SCSI-3 Fast-20 characteristic impedance requirements
- Gray colour insulation
- Tinned solid copper conductor
- Voltage rating of 150V
- Operating temperature range -40�C to +105�C
- 10 to 100 conductors based on ordering
- First conductor is identified by a blue marking on one edge of cable
- UL recognised (Style 20297) in FT2 flame retardant
- Close spacing permits higher signal density
Applications
Industrial, Power Management
Product details
| No. of Cores | 40Core |
| Reel Length (Metric) | - |
| Conductor Material | Tinned Copper |
| Pitch Spacing | 0.635mm |
| Jacket Material | TPE |
| Voltage Rating | 50V |
| Cable Width | 25.4mm |
| Reel Length (Imperial) | - |
| Product Range | 3749 Series |
| Wire Gauge | 30AWG |
| Jacket Colour | Grey |
| No. of Max Strands x Strand Size | Solid |
| Conductor Area CSA | 0.051mm� |
| Ribbon Cable Type | Flat Ribbon Cable |
Other details
| Brand | 3M |
| Part Number | 3749-40 |
| Quantity | 1 Metre |
| Technical Data Sheet EN |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.3 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Love these
Size: 80 Count (Pack of 3)
I love these for my toddler, they are bigger than regular wipes and have a soft side and a scrubbing side made with raised dots that are still soft on the skin. They are wet enough to do a great job and I like that there is no alcohol. Great value for the price and really sturdy quality. Diaper rash has lessened since we switched to these. I've ordered several times. Easy to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025
★★★★★ 5
Thick and big wipes
Size: 80 Count (Pack of 3)
Great quality and very moist. Great for cleaning up after a baby
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Best wipes I’ve ever used
Size: 10 Count (Pack of 6)
The price was so affordable I thought I might be disappointed. I’ve tried maybe 5 other brands and this is by FAR the best wipes and in perfect packaging for in home and travel use. The wipes are very thick, they do not break for ANYTHING I’m shocked. No fuzzy stringy debris like other wipes I’ve tried. Great for sensitive skin ! Will continue to buy.
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Reviewed in the United States on March 19, 2026
★★★★★ 4
Perfect Travel Wipes!
Size: 10 Count (Pack of 6)
These travel-size baby wipes are so nice! They’re thick, durable, and perfectly moist so you don’t need a bunch at once. Plus, the mini size is super cute and convenient for on-the-go.
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Reviewed in the United States on March 3, 2026
★★★★★ 5
Amazing quality wipes for difficult messes!
Size: 80 Count (Pack of 3)
The quality of these wipes are impeccable! They are thick and super strong with the best texture to help difficult clean ups if you know what I mean. It comes with so much too I swear it took forever to even finish one bag. These will definitely be a keeper in my rotation of baby wipes! If you haven’t tried them u definitely recommend you give them a try at least once to see what I’m talking about!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
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