Nickel Advantages in Tin-Plated Terminals

Having a nickel underlayer contact finish helps prevent zinc (Zn) migration on the surface, which can help reduce PC board soldering temperatures. Nickel underlayer or a tin-nickel finish helps ensure a good surface contact usually free of rust or oxidization.

A solid nickel contact finish would be better as it would provide increased contact performance. A solid nickel contact is another great option, however would require increased soldering temperatures along with a higher price.

Reference:
https://www.digikey.com/en/product-highlight/t/te-connectivity-amp/faston-250

See also:
Soldering Stainless Steel with Electronics Solder
Solder Sleeve Solderability?

Summary

36-3547-ND
WM19887-ND
3M157218-ND
60705-1-ND
36-3545-ND
36-3546-ND
298-16696-ND
298-16708-ND
A122466-ND
298-14414-ND
A111992-ND
298-11517-ND
298-16676-ND
298-10016-ND
A114155-ND,2266-63771-1-ND
A111495TR-ND,A111495CT-ND
298-10281-ND
298-16677-ND
298-10279-ND
3M157217-ND
298-14420-ND
298-16707-ND
298-19728-ND
A29946-ND
A107198TR-ND,A107198CT-ND
A100757TR-ND,A100757CT-ND
A122317-ND
A106560-ND
298-11414-2-ND,298-11414-1-ND
A122985TR-ND,A122985CT-ND
A111265TR-ND,A111265CT-ND
298-10023-ND
298-16688-ND
298-16670-ND
A27905TR-ND,A27905CT-ND
298-14425-ND
A111548TR-ND,A111548CT-ND
A130978-ND
A141561TR-ND,A141561CT-ND
A110891TR-ND,A110891CT-ND
A111510TR-ND,A111510CT-ND
298-20670-2-ND
A107930TR-ND,A107930CT-ND
298-10010-ND
A111380TR-ND,A111380CT-ND
A111262TR-ND,A111262CT-ND,2266-521011-1-ND
WM19888-ND
A137017TR-ND,A137017CT-ND
A29941TR-ND,A29941CT-ND
2266-1742841-1TR-ND,A107926TR-ND,A107926CT-ND
A121720TR-ND,A121720CT-ND
A100795TR-ND,A100795CT-ND
298-10542-ND
A111061TR-ND,A111061CT-ND
A141566TR-ND,A141566CT-ND
A141565TR-ND,A141565CT-ND
298-10024-ND
298-10003-ND
A24739TR-ND,A24739CT-ND
A111535TR-ND,A111535CT-ND
A100793TR-ND,A100793CT-ND
298-16697-ND
A111396TR-ND,A111396CT-ND
298-10017-ND
A121722TR-ND,A121722CT-ND
298-10030-ND
A121721TR-ND,A121721CT-ND
298-14408-ND
A141556TR-ND,A141556CT-ND
298-20459-2-ND,298-20459-1-ND
A136107-ND
A125038TR-ND,A125038CT-ND
298-11419-2-ND,298-11419-1-ND
A122972TR-ND,A122972CT-ND
36-3572-ND
A100685TR-ND,A100685CT-ND
A27591TR-ND,A27591CT-ND
A110904TR-ND,A110904CT-ND
A141576TR-ND,A141576CT-ND
A104114TR-ND,A104114CT-ND
A141555TR-ND,A141555CT-ND
A105486TR-ND,A105486CT-ND
A107929TR-ND,A107929CT-ND
A136993TR-ND,A136993CT-ND
A121723TR-ND,A121723CT-ND
A107192TR-ND,A107192CT-ND
A141564TR-ND,A141564CT-ND
A121724TR-ND,A121724CT-ND
A27607TR-ND,A27607CT-ND
2266-2178438-1TR-ND,A121719TR-ND,A121719CT-ND
2266-282349-1TR-ND,A135911TR-ND,A135911CT-ND
A131011TR-ND,A131011CT-ND
A135415TR-ND,A135415CT-ND
298-16661-ND
298-16662-ND
2266-726388-3-ND,726388-3-ND
298-21175-ND
298-10009-ND
298-14405-ND
298-16656-ND
298-21127-ND
A27709TR-ND,2266-42373-3-ND
A27668TR-ND,A27668CT-ND,2266-42563-9-ND
298-16668-ND
298-16667-ND
A111564TR-ND,A111564CT-ND,2266-63892-1-ND
298-10015-ND
2266-1742583-1TR-ND,1742583-1-ND
298-19711-ND
2266-1969447-1-ND,A107715-ND
2266-160855-2TR-ND,160855-2-ND
3547
192030379
HT-73F-250-32
60705-1
3545
3546
EDV14-250M-L
EDV18-250M-Q
61960-1
DV10-250M-L
1217002-1
DNF14-250FIMB-D
EDNF14250FIMB-L
D18-250MB-M
63771-1
63522-1
DNF18-250FIM-M
EDNF14250FIMB-Q
DNF14-250FIM-M
HT-72F-250-32
DV14-250MB-C
EDV18-250M-L
DV18-250MB-MY
42559-1
5-160432-3
62050-2
170330-2
2-160304-4
DNF14-250FIM-2K
170324-2
521087-1
DNF14-250M-C
EDV10-250M-Q
EDNF10250FIMB-Q
63301-1
DV18-250MB-CY
63757-2
1-160773-0
2825084-1
1217006-1
63604-1
DPF18-250FIM-2K
1742899-1
D14-250MB-M
61945-2
521011-1
192030390
1742594-1
63674-1
1742841-1
2178299-1
63850-1
DNF10-250FIMB-Q
1742198-1
2238106-1
2238105-1
DNF14-250M-M
D10-250M-D
41531-1
63696-1
63688-1
EDV14-250M-Q
62336-2
DNF10-250M-D
2178301-1
DNF18-250M-M
2178300-1
DPF18-250FIM-L
2238178-1
DNF10-250FIMB-K
4-1377174-6
1742626-1
DNF14-250FIMB-K
160389-3
3572
60621-1
42579-1
1217102-1
2238143-1
63963-1
2238177-1
6-160432-3
1742883-1
63316-3
2178423-1
4-160256-2
2238141-1
2178439-1
42404-1
2178438-1
282349-1
160807-2
2-160759-9
ED14-250MB-L
ED14-250MB-Q
726388-3
DV14-250MB-M
D14-250MB-C
DPF14-250FIM-L
ED10-250M-Q
DNF14-250M-E
42373-3
42563-9
ED18-250MB-Q
ED18-250MB-L
63892-1
D18-250MB-C
1742583-1
DNF14-250FIM-E
1969447-1
160855-2