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Description
WELWYN RC55Y-100KBI Through Hole Resistor, 100 kohm, 350 V, Axial Leaded, 250 mW, � 0.1%, RC SeriesThe RC55Y 100KBI is a precision Metal Film Resistor with solder coated copper wire. A metal film is deposited onto a high quality ceramic former. Nickel plated steel caps are force fitted to the former and termination wires are welded to the caps. The resistor is adjusted to value by a helical cut in the film and the body is protected with a specially formulated epoxy coating. CECC released products with low TCRs over a wide resistance range 0. 05%
The RC55Y-100KBI is a precision Metal Film Resistor with solder-coated copper wire. A metal film is deposited onto a high quality ceramic former. Nickel-plated steel caps are force fitted to the former and termination wires are welded to the caps. The resistor is adjusted to value by a helical cut in the film and the body is protected with a specially formulated epoxy coating.
- CECC released products with low
- TCRs over a wide resistance range
- 0.05% Resistance tolerance down
- Express delivery available
- Low noise and negligible voltage coefficient
- Screened parts available for critical applications
- 5ppm/�C Temperature coefficient of resistance down
- Options for RoHS compliant and lead bearing wire finishes
Applications
Industrial
Product details
| Temperature Coefficient | � 15ppm/�C |
| Power Rating | 250mW |
| Resistor Element Material | Metal Film |
| Automotive Qualification Standard | - |
| Resistance | 100kohm |
| Resistance Tolerance | � 0.1% |
| Product Range | RC Series |
| Resistor Case Style | Axial Leaded |
| Voltage Rating | 350V |
Other details
| Brand | WELWYN |
| Part Number | RC55Y-100KBI |
| Quantity | Each |
| Technical Data Sheet EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
New Fave
Set name: UltraCool Pillow, Standard - Medium/Firm Firmness, Item length width: 30.0 Inches
Love It so far... Its cool and comfortable... just the right firmness
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2025
★★★★★ 3
Doesn’t stay cool long
Set name: UltraCool Pillow, Standard - Soft/Medium Firmness, Item length width: 30.0 Inches
The pillow was a little softer than I expected. It’s cool at first but at least for me heats up fast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2024
★★★★★ 2
too soft, useless. but cool, kindah
Set name: UltraCool Pillow, Standard - Medium/Firm Firmness, Item length width: 30.0 Inches
the problem with these "cooling" pillows is any cooling effect is almost completely negated by a pillow case. this particular pillow is cool to the touch, but completely useless as it flattens out completely, way too soft I think for anyone. I would not recommend this "NASA" pillow for anyone for anything. Maybe for 10 bucks, but certainly not what they ask for this. I did keep it though. It is "cool" but only for a moment and your flipping it around like any other pillow. also way too soft. BUt, it has been cool enough to get me back to sleep.
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Reviewed in the United States on May 29, 2025
★★★★★ 5
Fantastic pillows
Set name: UltraCool Pillow 2-Pack, King - Medium/Firm, Item length width: 40.0 Inches
I cannot say enough how happy I am with these pillows. Truly amazing. I put REST pillowcases on them and they are constantly cool/cold.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 11, 2025
★★★★★ 5
Love it
Set name: UltraCool Pillow, King - Soft/Medium Firmness, Item length width: 40.0 Inches
I really like this pillow!! It’s a nice medium fluff. I do think it feels cooler. And, when you flip to the “cool side of the pillow” it’s realllly chilly. It’s very long - it sticks out of my king size pillowcase a little bit - but not enough to be bothered by it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2023
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