|
|
Surface Mount Fuses 6.3 Amp AC 125V / DC 125V
- CCF1F6.3TTE
- KOA Speer
-
1:
$1.36
-
1,000In Stock
|
Mouser Part No
660-CCF1F6.3TTE
|
KOA Speer
|
Surface Mount Fuses 6.3 Amp AC 125V / DC 125V
|
|
1,000In Stock
|
|
|
$1.36
|
|
|
$1.05
|
|
|
$0.877
|
|
|
$0.81
|
|
|
$0.617
|
|
|
View
|
|
|
$0.73
|
|
|
$0.674
|
|
|
$0.569
|
|
|
$0.512
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1F
|
Surface Mount Fuses
|
Fast Blow
|
6.3 A
|
125 VAC
|
125 VDC
|
50 A at 125 VAC, 50 A at 125 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
11.4 mOhms
|
|
|
|
Surface Mount Fuses 8 Amp AC 125V / DC 125V
- CCF1F8TTE
- KOA Speer
-
1:
$1.38
-
5In Stock
|
Mouser Part No
660-CCF1F8TTE
|
KOA Speer
|
Surface Mount Fuses 8 Amp AC 125V / DC 125V
|
|
5In Stock
|
|
|
$1.38
|
|
|
$1.06
|
|
|
$0.878
|
|
|
$0.812
|
|
|
$0.592
|
|
|
View
|
|
|
$0.731
|
|
|
$0.698
|
|
|
$0.569
|
|
|
$0.512
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1F
|
Surface Mount Fuses
|
Fast Blow
|
8 A
|
125 VAC
|
125 VDC
|
50 A at 125 VAC, 50 A at 125 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
9.5 mOhms
|
|
|
|
Surface Mount Fuses 630mA AC 125V/DC 60V
- CCF1N0.63TTE
- KOA Speer
-
1:
$1.75
-
429In Stock
|
Mouser Part No
660-CCF1N0.63TTE
|
KOA Speer
|
Surface Mount Fuses 630mA AC 125V/DC 60V
|
|
429In Stock
|
|
|
$1.75
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.749
|
|
|
View
|
|
|
$0.924
|
|
|
$0.883
|
|
|
$0.723
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Fast Blow
|
630 mA
|
125 VAC
|
60 VDC
|
50 A
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
390 mOhms
|
|
|
|
Surface Mount Fuses 2A AC 125V/DC 60V
- CCF1N2TTE
- KOA Speer
-
1:
$1.46
-
3,558In Stock
|
Mouser Part No
660-CCF1N2TTE
|
KOA Speer
|
Surface Mount Fuses 2A AC 125V/DC 60V
|
|
3,558In Stock
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.802
|
|
|
View
|
|
|
$0.924
|
|
|
$0.852
|
|
|
$0.723
|
|
|
$0.663
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
2 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
42.9 mOhms
|
|
|
|
Surface Mount Fuses 15 Amp AC 65V / DC 65V
- CCF1F15TTE
- KOA Speer
-
1:
$1.10
-
220In Stock
|
Mouser Part No
660-CCF1F15TTE
|
KOA Speer
|
Surface Mount Fuses 15 Amp AC 65V / DC 65V
|
|
220In Stock
|
|
|
$1.10
|
|
|
$1.01
|
|
|
$0.835
|
|
|
$0.771
|
|
|
$0.588
|
|
|
View
|
|
|
$0.692
|
|
|
$0.639
|
|
|
$0.517
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1F
|
Surface Mount Fuses
|
Fast Blow
|
15 A
|
65 VAC
|
65 VDC
|
50 A at 65 VAC, 50 A at 65 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
3.5 mOhms
|
|
|
|
Surface Mount Fuses 5 Amp AC 125V / DC 125V
- CCF1F5TTE
- KOA Speer
-
1:
$1.38
-
667In Stock
|
Mouser Part No
660-CCF1F5TTE
|
KOA Speer
|
Surface Mount Fuses 5 Amp AC 125V / DC 125V
|
|
667In Stock
|
|
|
$1.38
|
|
|
$1.24
|
|
|
$1.05
|
|
|
$0.97
|
|
|
$0.741
|
|
|
View
|
|
|
$0.873
|
|
|
$0.805
|
|
|
$0.651
|
|
|
$0.612
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1F
|
Surface Mount Fuses
|
Fast Blow
|
5 A
|
125 VAC
|
125 VDC
|
50 A at 125 VAC, 50 A at 125 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
15.3 mOhms
|
|
|
|
Surface Mount Fuses 800mA AC 125V/DC 60V
- CCF1N0.8TTE
- KOA Speer
-
1:
$1.46
-
935In Stock
|
Mouser Part No
660-CCF1N0.8TTE
|
KOA Speer
|
Surface Mount Fuses 800mA AC 125V/DC 60V
|
|
935In Stock
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.802
|
|
|
View
|
|
|
$0.942
|
|
|
$0.87
|
|
|
$0.624
|
|
|
$0.62
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
800 mA
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
250 mOhms
|
|
|
|
Surface Mount Fuses 1.6A AC 125V/DC 60V
- CCF1N1.6TTE
- KOA Speer
-
1:
$1.46
-
575In Stock
|
Mouser Part No
660-CCF1N1.6TTE
|
KOA Speer
|
Surface Mount Fuses 1.6A AC 125V/DC 60V
|
|
575In Stock
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.784
|
|
|
View
|
|
|
$0.924
|
|
|
$0.852
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
1.6 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
59.3 mOhms
|
|
|
|
Surface Mount Fuses 10A AC 125V/DC 60V
- CCF1N10TTE
- KOA Speer
-
1:
$1.46
-
553In Stock
|
Mouser Part No
660-CCF1N10TTE
|
KOA Speer
|
Surface Mount Fuses 10A AC 125V/DC 60V
|
|
553In Stock
|
|
|
$1.46
|
|
|
$1.26
|
|
|
$1.07
|
|
|
$0.991
|
|
|
$0.802
|
|
|
View
|
|
|
$0.902
|
|
|
$0.841
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
10 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
7.5 mOhms
|
|
|
|
Surface Mount Fuses 12A AC 65V/DC 65V
- CCF1N12TTE
- KOA Speer
-
1:
$1.38
-
770In Stock
|
Mouser Part No
660-CCF1N12TTE
|
KOA Speer
|
Surface Mount Fuses 12A AC 65V/DC 65V
|
|
770In Stock
|
|
|
$1.38
|
|
|
$1.27
|
|
|
$1.05
|
|
|
$0.97
|
|
|
$0.731
|
|
|
View
|
|
|
$0.89
|
|
|
$0.852
|
|
|
$0.666
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
12 A
|
65 VAC
|
65 VDC
|
50 A at 65 VAC, 50 A at 65 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
4.5 mOhms
|
|
|
|
Surface Mount Fuses 1A AC 125V/DC 60V
- CCF1N1TTE
- KOA Speer
-
1:
$1.46
-
8In Stock
-
2,000Expected 2/3/2026
|
Mouser Part No
660-CCF1N1TTE
|
KOA Speer
|
Surface Mount Fuses 1A AC 125V/DC 60V
|
|
8In Stock
2,000Expected 2/3/2026
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.784
|
|
|
View
|
|
|
$0.924
|
|
|
$0.852
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
1 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
90.4 mOhms
|
|
|
|
Surface Mount Fuses 2.5A AC 125V/DC 60V
- CCF1N2.5TTE
- KOA Speer
-
1:
$1.46
-
424In Stock
|
Mouser Part No
660-CCF1N2.5TTE
|
KOA Speer
|
Surface Mount Fuses 2.5A AC 125V/DC 60V
|
|
424In Stock
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.784
|
|
|
View
|
|
|
$0.924
|
|
|
$0.852
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
2.5 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
36.6 mOhms
|
|
|
|
Surface Mount Fuses 3.15A AC 125V/DC 60V
- CCF1N3.15TTE
- KOA Speer
-
1:
$1.46
-
626In Stock
|
Mouser Part No
660-CCF1N3.15TTE
|
KOA Speer
|
Surface Mount Fuses 3.15A AC 125V/DC 60V
|
|
626In Stock
|
|
|
$1.46
|
|
|
$1.27
|
|
|
$1.07
|
|
|
$0.983
|
|
|
$0.771
|
|
|
View
|
|
|
$0.892
|
|
|
$0.831
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
3.15 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
26 mOhms
|
|
|
|
Surface Mount Fuses 4A AC 125V/DC 60V
- CCF1N4TTE
- KOA Speer
-
1:
$1.26
-
14In Stock
-
1,000Expected 16/2/2026
|
Mouser Part No
660-CCF1N4TTE
|
KOA Speer
|
Surface Mount Fuses 4A AC 125V/DC 60V
|
|
14In Stock
1,000Expected 16/2/2026
|
|
|
$1.26
|
|
|
$1.08
|
|
|
$0.915
|
|
|
$0.851
|
|
|
$0.657
|
|
|
View
|
|
|
$0.826
|
|
|
$0.82
|
|
|
$0.605
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
4 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
20.1 mOhms
|
|
|
|
Surface Mount Fuses 5A CHIP FUSE
- CCF1N5TTE
- KOA Speer
-
1:
$1.38
-
669In Stock
|
Mouser Part No
660-CCF1N5TTE
|
KOA Speer
|
Surface Mount Fuses 5A CHIP FUSE
|
|
669In Stock
|
|
|
$1.38
|
|
|
$1.27
|
|
|
$1.05
|
|
|
$0.97
|
|
|
$0.741
|
|
|
View
|
|
|
$0.873
|
|
|
$0.805
|
|
|
$0.666
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
5 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape
|
15.3 mOhms
|
|
|
|
Surface Mount Fuses 7A AC 125V/DC 60V
- CCF1N7TTE
- KOA Speer
-
1:
$1.46
-
723In Stock
|
Mouser Part No
660-CCF1N7TTE
|
KOA Speer
|
Surface Mount Fuses 7A AC 125V/DC 60V
|
|
723In Stock
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.784
|
|
|
View
|
|
|
$0.924
|
|
|
$0.852
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
7 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
10.5 mOhms
|
|
|
|
Surface Mount Fuses 10 Amp AC 125V / DC 125V
- CCF1F10TTE
- KOA Speer
-
1:
$1.38
-
6In Stock
|
Mouser Part No
660-CCF1F10TTE
|
KOA Speer
|
Surface Mount Fuses 10 Amp AC 125V / DC 125V
|
|
6In Stock
|
|
|
$1.38
|
|
|
$1.14
|
|
|
$0.895
|
|
|
$0.812
|
|
|
$0.50
|
|
|
View
|
|
|
$0.77
|
|
|
$0.585
|
|
|
$0.473
|
|
|
$0.47
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1F
|
Surface Mount Fuses
|
Fast Blow
|
10 A
|
125 VAC
|
125 VDC
|
50 A at 125 VAC, 50 A at 125 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
7.5 mOhms
|
|
|
|
Surface Mount Fuses 12 Amp AC 65V / DC 65V
- CCF1F12TTE
- KOA Speer
-
1:
$1.58
-
443In Stock
|
Mouser Part No
660-CCF1F12TTE
|
KOA Speer
|
Surface Mount Fuses 12 Amp AC 65V / DC 65V
|
|
443In Stock
|
|
|
$1.58
|
|
|
$1.14
|
|
|
$0.895
|
|
|
$0.812
|
|
|
$0.596
|
|
|
View
|
|
|
$0.77
|
|
|
$0.656
|
|
|
$0.539
|
|
|
$0.512
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1F
|
Surface Mount Fuses
|
Fast Blow
|
12 A
|
65 VAC
|
65 VDC
|
50 A at 65 VAC, 50 A at 65 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
4.5 mOhms
|
|
|
|
Surface Mount Fuses 7 Amp AC 125V / DC 125V
- CCF1F7TTE
- KOA Speer
-
1:
$1.26
-
990In Stock
|
Mouser Part No
660-CCF1F7TTE
|
KOA Speer
|
Surface Mount Fuses 7 Amp AC 125V / DC 125V
|
|
990In Stock
|
|
|
$1.26
|
|
|
$1.01
|
|
|
$0.878
|
|
|
$0.812
|
|
|
$0.624
|
|
|
View
|
|
|
$0.751
|
|
|
$0.735
|
|
|
$0.623
|
|
|
$0.578
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1F
|
Surface Mount Fuses
|
Fast Blow
|
7 A
|
125 VAC
|
125 VDC
|
50 A at 125 VAC, 50 A at 125 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
10.6 mOhms
|
|
|
|
Surface Mount Fuses 400mA AC 125V/DC 60V
- CCF1N0.4TTE
- KOA Speer
-
1:
$1.46
-
212In Stock
|
Mouser Part No
660-CCF1N0.4TTE
|
KOA Speer
|
Surface Mount Fuses 400mA AC 125V/DC 60V
|
|
212In Stock
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.784
|
|
|
View
|
|
|
$0.924
|
|
|
$0.852
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
400 mA
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
650 mOhms
|
|
|
|
Surface Mount Fuses 500mA AC 125V/DC 60V
- CCF1N0.5TTE
- KOA Speer
-
1:
$1.46
-
808In Stock
|
Mouser Part No
660-CCF1N0.5TTE
|
KOA Speer
|
Surface Mount Fuses 500mA AC 125V/DC 60V
|
|
808In Stock
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.784
|
|
|
View
|
|
|
$0.924
|
|
|
$0.852
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
500 mA
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
510 mOhms
|
|
|
|
Surface Mount Fuses 1.25A AC 125V/DC 60V
- CCF1N1.25TTE
- KOA Speer
-
1:
$1.46
-
609In Stock
|
Mouser Part No
660-CCF1N1.25TTE
|
KOA Speer
|
Surface Mount Fuses 1.25A AC 125V/DC 60V
|
|
609In Stock
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.784
|
|
|
View
|
|
|
$0.924
|
|
|
$0.852
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
1.25 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
75.9 mOhms
|
|
|
|
Surface Mount Fuses 6.3A AC 125V/DC 60V
- CCF1N6.3TTE
- KOA Speer
-
1:
$1.38
-
999Expected 6/4/2026
|
Mouser Part No
660-CCF1N6.3TTE
|
KOA Speer
|
Surface Mount Fuses 6.3A AC 125V/DC 60V
|
|
999Expected 6/4/2026
|
|
|
$1.38
|
|
|
$1.27
|
|
|
$1.05
|
|
|
$0.97
|
|
|
$0.741
|
|
|
View
|
|
|
$0.873
|
|
|
$0.805
|
|
|
$0.666
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
6.3 A
|
125 VAC
|
60 VDC
|
50 A at 125 VAC, 50 A at 60 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
11.4 mOhms
|
|
|
|
Surface Mount Fuses 15A AC 65V/DC 65V
- CCF1N15TTE
- KOA Speer
-
1:
$1.46
-
1,000Expected 6/4/2026
|
Mouser Part No
660-CCF1N15TTE
|
KOA Speer
|
Surface Mount Fuses 15A AC 65V/DC 65V
|
|
1,000Expected 6/4/2026
|
|
|
$1.46
|
|
|
$1.34
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$0.784
|
|
|
View
|
|
|
$0.924
|
|
|
$0.852
|
|
|
$0.689
|
|
|
$0.648
|
|
Min.: 1
Mult.: 1
|
|
|
CCF1N
|
Surface Mount Fuses
|
Medium / Normal Blow
|
15 A
|
65 VAC
|
65 VDC
|
50 A at 65 VAC, 50 A at 65 VDC
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel, Cut Tape, MouseReel
|
3.5 mOhms
|
|
|
|
Surface Mount Fuses 8A CHIP FUSE
- CCF1N8TTE
- KOA Speer
-
1,000:
$0.739
-
Non-Stocked Lead-Time 7 Weeks
|
Mouser Part No
660-CCF1N8TTE
|
KOA Speer
|
Surface Mount Fuses 8A CHIP FUSE
|
|
Non-Stocked Lead-Time 7 Weeks
|
|
|
$0.739
|
|
|
$0.738
|
|
|
$0.737
|
|
Min.: 1,000
Mult.: 1,000
|
|
|
CCF1N
|
Surface Mount Fuses
|
Fast Blow
|
8 A
|
125 VAC
|
60 VDC
|
|
2410 (6125 metric)
|
- 55 C
|
+ 125 C
|
Reel
|
9.5 mOhms
|
|
Singapore