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PRODUCT CHANGE NOTIFICATION
Users should verify that the described changes will not impact the performance of the product in their specic applications.
MAGNETICS
IC2190
Model SRN4018 Series Semi-shielded Power Inductors
Package Cover Tape Change
Riverside, California – August 3, 2021 – In the spirit of continuous improvement, eective February 5, 2022, Bourns will change the package cover
tape from Pressure Sensitive Adhesive (PSA) to Universal Cover Tape (UCT) for Model SRN4018 Series Semi-shielded Power Inductors. The Universal
Cover Tape allows the removal of the middle section of cover tape while the adhesive edges remain attached to the carrier. This new cover tape may
reduce an end user’s assembly downtime associated with poor cover tape sealing and adhesive contamination that may occur with PSA cover tape. A
list of aected part numbers is included below.
Current Package Cover Tape Revised Package Cover Tape
SRN4018-8R2Y
SRN4018-1R0Y
SRN4018-1R2Y
SRN4018-1R5Y
SRN4018-2R2M
SRN4018-2R7M
SRN4018-3R3M
SRN4018-4R7M
SRN4018-6R8M
SRN4018-100M
SRN4018-150M
SRN4018-220M
SRN4018-330M
SRN4018-470M
SRN4018-680M
SRN4018-101M
SRN4018-151M
SRN4018-221M
SRN4018-331M
Aected Part Numbers
9.30 ± 0.10
(.366 ± .004)
9.30 ± 0.10
(.366 ± .004)
7.70 ± 0.10
(.303 ± .004)
1.00 ± 0.20
(.039 ± .008)
0.80 ± 0.10
(.031 ± .004)
0.80 ± 0.10
(.031 ± .004)
1.00 ± 0.20
(.039 ± .008)
0.45 +0.25/-0.10
(.018 +.010/-.004)
0.45 +0.25/-0.10
(.018 +.010/-.004)
Dimensions:
Current Package Cover Tape Revised Package Cover Tape
The form, t, function, quality and reliability of the inductor are not aected with the change of package cover tape. The quality of the package cover
tape should be improved.
Implementation dates are as follows:
Date that manufacturing of products with existing package cover tape will cease: February 5, 2022
Date that deliveries of products with modied package cover tape will begin: February 6, 2022
First date code using the above changes: 2206
If you have any questions or need additional information, please feel free to contact Customer Service/Inside Sales.
Model SRN4018 Series Semi-shielded Power Inductors
August 3, 2021
Page 2 of 2
Features Current Package Cover Tape Revised Package Cover Tape
Material PET Polystylene
Color Grey Transparent
Thickness (mm) 0.062 0.060
Antistatic ≤ 10
9
10
7
– 10
12
Tensile strength ≥ 29.4N/mm
2
≥ 6N/mm
2
Peeling strength 20 – 80g 15 – 60g