|
|
RF Switch ICs .1-3.0GHz SPDT GaAs IL .9dB Max
- SKY13354-368LF
- Skyworks Solutions, Inc.
-
1:
$1.24
-
33,489In Stock
|
Mouser Part No
873-SKY13354-368LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs .1-3.0GHz SPDT GaAs IL .9dB Max
|
|
33,489In Stock
|
|
|
$1.24
|
|
|
$0.90
|
|
|
$0.815
|
|
|
$0.721
|
|
|
$0.599
|
|
|
View
|
|
|
$0.676
|
|
|
$0.649
|
|
|
$0.627
|
|
|
$0.573
|
|
Min.: 1
Mult.: 1
|
|
|
DPDT
|
100 MHz
|
3 GHz
|
0.55 dB
|
32 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
QFN-12
|
GaAs
|
|
SKY13354
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs 802.11b/g IL .3dB IP3=+43dBm typ.
- AS179-92LF
- Skyworks Solutions, Inc.
-
1:
$1.06
-
47,283In Stock
|
Mouser Part No
873-AS179-92LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs 802.11b/g IL .3dB IP3=+43dBm typ.
|
|
47,283In Stock
|
|
|
$1.06
|
|
|
$0.763
|
|
|
$0.69
|
|
|
$0.608
|
|
|
$0.502
|
|
|
View
|
|
|
$0.569
|
|
|
$0.545
|
|
|
$0.526
|
|
|
$0.481
|
|
Min.: 1
Mult.: 1
|
|
|
SPDT
|
20 MHz
|
4 GHz
|
0.5 dB
|
23 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
SC-88
|
GaAs
|
|
AS179
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs 1-6GHz SP3T Typ. IIP3 54dBm
- SKY13408-465LF
- Skyworks Solutions, Inc.
-
1:
$4.76
-
12,609In Stock
|
Mouser Part No
873-SKY13408-465LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs 1-6GHz SP3T Typ. IIP3 54dBm
|
|
12,609In Stock
|
|
|
$4.76
|
|
|
$3.17
|
|
|
$2.95
|
|
|
$2.59
|
|
|
$1.80
|
|
|
View
|
|
|
$2.47
|
|
|
$2.20
|
|
|
$1.86
|
|
|
$1.76
|
|
Min.: 1
Mult.: 1
|
|
|
SP3T
|
1 GHz
|
6 GHz
|
1.1 dB
|
24 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
QFN-12
|
GaAs
|
|
SKY13408
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs .3-2500MHz IL .3dB IP3 +43dBm
- AS183-92LF
- Skyworks Solutions, Inc.
-
1:
$2.97
-
16,820In Stock
|
Mouser Part No
873-AS183-92LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs .3-2500MHz IL .3dB IP3 +43dBm
|
|
16,820In Stock
|
|
|
$2.97
|
|
|
$1.92
|
|
|
$1.74
|
|
|
$1.47
|
|
|
$0.952
|
|
|
View
|
|
|
$1.38
|
|
|
$1.20
|
|
|
$1.03
|
|
|
$0.932
|
|
Min.: 1
Mult.: 1
|
|
|
SPDT
|
300 kHz
|
2.5 GHz
|
0.55 dB
|
13 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
SC-88
|
GaAs
|
|
AS183
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs .002-6GHz SPDT IL .35dB Iso 24dB
- SKY13587-378LF
- Skyworks Solutions, Inc.
-
1:
$1.79
-
11,310In Stock
|
Mouser Part No
873-SKY13587-378LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs .002-6GHz SPDT IL .35dB Iso 24dB
|
|
11,310In Stock
|
|
|
$1.79
|
|
|
$1.14
|
|
|
$1.02
|
|
|
$0.84
|
|
|
$0.533
|
|
|
View
|
|
|
$0.733
|
|
|
$0.694
|
|
|
$0.583
|
|
|
$0.487
|
|
Min.: 1
Mult.: 1
|
|
|
SPDT
|
20 MHz
|
6 GHz
|
0.35 dB
|
24 dB
|
- 40 C
|
+ 105 C
|
SMD/SMT
|
MLPD 6L
|
GaAs
|
|
SKY13587
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs SWITCH, SOI, SP2T
- SKYA21062
- Skyworks Solutions, Inc.
-
1:
$1.57
-
5,943In Stock
-
New At Mouser
|
Mouser Part No
873-SKYA21062
New At Mouser
|
Skyworks Solutions, Inc.
|
RF Switch ICs SWITCH, SOI, SP2T
|
|
5,943In Stock
|
|
|
$1.57
|
|
|
$0.956
|
|
|
$0.804
|
|
|
$0.609
|
|
|
$0.355
|
|
|
View
|
|
|
$0.527
|
|
|
$0.463
|
|
|
$0.386
|
|
|
$0.308
|
|
Min.: 1
Mult.: 1
|
|
|
SP3T
|
100 MHz
|
6 GHz
|
0.8 dB
|
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
QFN-12
|
|
|
SKY85781
|
Reel, Cut Tape
|
|
|
|
RF Switch ICs DPDT for automotive CV2X based upon SKY1
- SKY5A1007
- Skyworks Solutions, Inc.
-
1:
$2.45
-
2,301In Stock
|
Mouser Part No
873-SKY5A1007
|
Skyworks Solutions, Inc.
|
RF Switch ICs DPDT for automotive CV2X based upon SKY1
|
|
2,301In Stock
|
|
|
$2.45
|
|
|
$1.57
|
|
|
$1.40
|
|
|
$1.15
|
|
|
$0.73
|
|
|
View
|
|
|
$1.00
|
|
|
$0.954
|
|
|
$0.80
|
|
|
$0.664
|
|
Min.: 1
Mult.: 1
|
|
|
DPDT
|
400 MHz
|
5.9 GHz
|
0.7 dB
|
30 dB
|
- 40 C
|
+ 105 C
|
SMD/SMT
|
QFN-12
|
Si
|
|
SKY5A1007
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs GaAs DPDT.01 to 6.0GHz
- SKYA21070
- Skyworks Solutions, Inc.
-
1:
$3.17
-
3,778In Stock
|
Mouser Part No
873-SKYA21070
|
Skyworks Solutions, Inc.
|
RF Switch ICs GaAs DPDT.01 to 6.0GHz
|
|
3,778In Stock
|
|
|
$3.17
|
|
|
$2.07
|
|
|
$1.90
|
|
|
$1.63
|
|
|
$1.05
|
|
|
View
|
|
|
$1.54
|
|
|
$1.34
|
|
|
$1.12
|
|
|
$1.03
|
|
Min.: 1
Mult.: 1
|
|
|
DPDT
|
100 MHz
|
6 GHz
|
1.2 dB
|
24 dB to 34 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
MLPD-6
|
GaAs
|
|
SKYA21070
|
Reel, Cut Tape
|
|
|
|
RF Switch ICs .5-6.0GHz DPDT GaAs IL .65dB Iso 27dB
- SKY13438-374LF
- Skyworks Solutions, Inc.
-
1:
$1.54
-
4,245In Stock
|
Mouser Part No
873-SKY13438-374LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs .5-6.0GHz DPDT GaAs IL .65dB Iso 27dB
|
|
4,245In Stock
|
|
|
$1.54
|
|
|
$0.983
|
|
|
$0.876
|
|
|
$0.721
|
|
|
$0.457
|
|
|
View
|
|
|
$0.629
|
|
|
$0.597
|
|
|
$0.50
|
|
|
$0.418
|
|
Min.: 1
Mult.: 1
|
|
|
DPDT
|
100 MHz
|
6 GHz
|
1.2 dB
|
25 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
|
GaAs
|
|
SKY13438
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs WIFI SP3T,Automotive version of SKY13586
- SKYA21039
- Skyworks Solutions, Inc.
-
1:
$1.78
-
7,008In Stock
|
Mouser Part No
873-SKYA21039
|
Skyworks Solutions, Inc.
|
RF Switch ICs WIFI SP3T,Automotive version of SKY13586
|
|
7,008In Stock
|
|
|
$1.78
|
|
|
$1.14
|
|
|
$1.01
|
|
|
$0.84
|
|
|
$0.531
|
|
|
View
|
|
|
$0.732
|
|
|
$0.693
|
|
|
$0.583
|
|
|
$0.486
|
|
Min.: 1
Mult.: 1
|
|
|
SP3T
|
2.4 GHz
|
2.5 GHz
|
0.75 dB
|
35 dB
|
|
|
SMD/SMT
|
MLP-8
|
Si
|
AEC-Q100
|
SKYA21039
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs .4-2.7GHz SP6T IL .85dB @2.68GHz
- SKY13526-485LF
- Skyworks Solutions, Inc.
-
1:
$2.54
-
2,989In Stock
|
Mouser Part No
873-SKY13526-485LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs .4-2.7GHz SP6T IL .85dB @2.68GHz
|
|
2,989In Stock
|
|
|
$2.54
|
|
|
$1.64
|
|
|
$1.47
|
|
|
$1.21
|
|
|
$0.761
|
|
|
View
|
|
|
$1.14
|
|
|
$0.99
|
|
|
$0.82
|
|
|
$0.747
|
|
Min.: 1
Mult.: 1
|
|
|
SP6T
|
400 MHz
|
2.7 GHz
|
0.85 dB
|
23 dB
|
- 30 C
|
+ 90 C
|
SMD/SMT
|
QFN-14
|
Si
|
|
SKY13526
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs MIPI SP10T LTE Tx/Rx
- SKY13638-700LF
- Skyworks Solutions, Inc.
-
1:
$2.76
-
2,969In Stock
|
Mouser Part No
873-SKY13638-700LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs MIPI SP10T LTE Tx/Rx
|
|
2,969In Stock
|
|
|
$2.76
|
|
|
$2.06
|
|
|
$1.88
|
|
|
$1.69
|
|
|
View
|
|
|
$1.37
|
|
|
$1.60
|
|
|
$1.54
|
|
|
$1.50
|
|
|
$1.37
|
|
Min.: 1
Mult.: 1
|
|
|
SP10T
|
400 MHz
|
3.8 GHz
|
0.75 dB
|
30 dB
|
|
|
SMD/SMT
|
QFN-20
|
Si
|
|
SKY13638
|
Reel, Cut Tape
|
|
|
|
RF Switch ICs Lower Insertion Loss Antenna Swap DPDT
- SKY13698-694LF
- Skyworks Solutions, Inc.
-
1:
$2.61
-
4,133In Stock
|
Mouser Part No
873-SKY13698-694LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs Lower Insertion Loss Antenna Swap DPDT
|
|
4,133In Stock
|
|
|
$2.61
|
|
|
$1.67
|
|
|
$1.50
|
|
|
$1.24
|
|
|
$0.808
|
|
|
View
|
|
|
$1.16
|
|
|
$1.02
|
|
|
$0.89
|
|
|
$0.771
|
|
Min.: 1
Mult.: 1
|
|
|
DPDT
|
400 MHz
|
5.9 GHz
|
0.4 dB
|
38 dB
|
|
|
SMD/SMT
|
QFN-12
|
Si
|
|
SKY13698
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs 100-3000MHz SP5T IL .45dB Iso >31dB
- SKY13415-485LF
- Skyworks Solutions, Inc.
-
1:
$2.02
-
4,064In Stock
|
Mouser Part No
873-SKY13415-485LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs 100-3000MHz SP5T IL .45dB Iso >31dB
|
|
4,064In Stock
|
|
|
$2.02
|
|
|
$1.50
|
|
|
$1.37
|
|
|
$1.22
|
|
|
View
|
|
|
$0.969
|
|
|
$1.15
|
|
|
$1.11
|
|
|
$1.07
|
|
|
$0.969
|
|
Min.: 1
Mult.: 1
|
|
|
SP5T
|
100 MHz
|
3 GHz
|
0.6 dB
|
26 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
|
Si
|
|
SKY13415
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs 0.7 to 3.0 GHz DPDT Switch
- SKYA21026
- Skyworks Solutions, Inc.
-
1:
$2.65
-
2,986In Stock
|
Mouser Part No
873-SKYA21026
|
Skyworks Solutions, Inc.
|
RF Switch ICs 0.7 to 3.0 GHz DPDT Switch
|
|
2,986In Stock
|
|
|
$2.65
|
|
|
$1.72
|
|
|
$1.56
|
|
|
$1.33
|
|
|
$0.843
|
|
|
View
|
|
|
$1.24
|
|
|
$1.08
|
|
|
$0.92
|
|
|
$0.826
|
|
Min.: 1
Mult.: 1
|
|
|
DPDT
|
700 MHz
|
3 GHz
|
0.4 dB
|
25 dB
|
- 30 C
|
+ 90 C
|
SMD/SMT
|
QFN-12
|
Si
|
|
SKYA21026
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs .5-3GHz IL 1dB max. Iso 28dB @1GHz
- AS215-92LF
- Skyworks Solutions, Inc.
-
1:
$2.66
-
5,881In Stock
-
End of Life
|
Mouser Part No
873-AS215-92LF
End of Life
|
Skyworks Solutions, Inc.
|
RF Switch ICs .5-3GHz IL 1dB max. Iso 28dB @1GHz
|
|
5,881In Stock
|
|
|
$2.66
|
|
|
$1.72
|
|
|
$1.56
|
|
|
$1.33
|
|
|
$0.856
|
|
|
View
|
|
|
$1.24
|
|
|
$1.08
|
|
|
$0.926
|
|
|
$0.837
|
|
Min.: 1
Mult.: 1
|
|
|
SPDT
|
500 MHz
|
3 GHz
|
0.5 dB
|
20 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
SC-88
|
GaAs
|
|
AS215
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs .1-6.0GHz SPDT GaAs IL .45dB @2.5GHz
- SKY13314-374LF
- Skyworks Solutions, Inc.
-
1:
$1.28
-
4,899In Stock
-
End of Life
|
Mouser Part No
873-SKY13314-374LF
End of Life
|
Skyworks Solutions, Inc.
|
RF Switch ICs .1-6.0GHz SPDT GaAs IL .45dB @2.5GHz
|
|
4,899In Stock
|
|
|
$1.28
|
|
|
$0.927
|
|
|
$0.84
|
|
|
$0.742
|
|
|
View
|
|
|
$0.576
|
|
|
$0.697
|
|
|
$0.669
|
|
|
$0.647
|
|
|
$0.576
|
|
Min.: 1
Mult.: 1
|
|
|
SPDT
|
100 MHz
|
6 GHz
|
0.6 dB
|
21 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
QFN-6
|
GaAs
|
|
SKY13314
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs 5GHz SW+LNA FEM
Skyworks Solutions, Inc. SKY85605-11
- SKY85605-11
- Skyworks Solutions, Inc.
-
1:
$1.38
-
2,999In Stock
|
Mouser Part No
873-SKY85605-11
|
Skyworks Solutions, Inc.
|
RF Switch ICs 5GHz SW+LNA FEM
|
|
2,999In Stock
|
|
|
$1.38
|
|
|
$1.14
|
|
|
$1.05
|
|
|
$0.902
|
|
|
$0.598
|
|
|
View
|
|
|
$0.826
|
|
|
$0.783
|
|
|
$0.657
|
|
|
$0.544
|
|
Min.: 1
Mult.: 1
|
|
|
SPDT
|
4.9 GHz
|
5.9 GHz
|
|
|
|
|
SMD/SMT
|
|
Si
|
|
SKY85605
|
Reel, Cut Tape
|
|
|
|
RF Switch ICs 1-6GHz SPDT IL .45dB Hi Iso 35dB
- SKY13592-689LF
- Skyworks Solutions, Inc.
-
1:
$1.35
-
3,644In Stock
|
Mouser Part No
873-SKY13592-689LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs 1-6GHz SPDT IL .45dB Hi Iso 35dB
|
|
3,644In Stock
|
|
|
$1.35
|
|
|
$0.82
|
|
|
$0.69
|
|
|
$0.523
|
|
|
$0.269
|
|
|
View
|
|
|
$0.454
|
|
|
$0.397
|
|
|
$0.317
|
|
|
$0.265
|
|
Min.: 1
Mult.: 1
|
|
|
SPDT
|
1 GHz
|
6 GHz
|
0.45 dB
|
35 dB
|
- 40 C
|
+ 90 C
|
SMD/SMT
|
MLPD-6
|
Si
|
|
SKY13592
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs 100-3000MHz SP7T IL .45dB Iso >31dB
- SKY13417-485LF
- Skyworks Solutions, Inc.
-
1:
$3.91
-
996In Stock
|
Mouser Part No
873-SKY13417-485LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs 100-3000MHz SP7T IL .45dB Iso >31dB
|
|
996In Stock
|
|
|
$3.91
|
|
|
$2.65
|
|
|
$2.45
|
|
|
$2.13
|
|
|
$1.36
|
|
|
View
|
|
|
$2.00
|
|
|
$1.76
|
|
|
$1.45
|
|
|
$1.34
|
|
Min.: 1
Mult.: 1
|
|
|
SP7T
|
100 MHz
|
3 GHz
|
0.8 dB
|
21 dB
|
- 40 C
|
+ 90 C
|
SMD/SMT
|
|
Si
|
|
SKY13417
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs SP4T LTE
- SKY13626-685LF
- Skyworks Solutions, Inc.
-
1:
$3.07
-
1,820In Stock
|
Mouser Part No
873-SKY13626-685LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs SP4T LTE
|
|
1,820In Stock
|
|
|
$3.07
|
|
|
$2.00
|
|
|
$1.83
|
|
|
$1.57
|
|
|
$1.01
|
|
|
View
|
|
|
$1.48
|
|
|
$1.29
|
|
|
$1.08
|
|
|
$0.997
|
|
Min.: 1
Mult.: 1
|
|
|
SP4T
|
400 MHz
|
3.8 GHz
|
|
|
- 40 C
|
+ 90 C
|
SMD/SMT
|
QFN-9
|
Si
|
|
SKY13626
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs .1-6.0GHz DPDT GaAs IL .6dB Iso 23.5dB
Skyworks Solutions, Inc. SKY13411-374LF
- SKY13411-374LF
- Skyworks Solutions, Inc.
-
1:
$0.87
-
1,911In Stock
-
3,000Expected 2026/04/27
|
Mouser Part No
873-SKY13411-374LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs .1-6.0GHz DPDT GaAs IL .6dB Iso 23.5dB
|
|
1,911In Stock
3,000Expected 2026/04/27
|
|
|
$0.87
|
|
|
$0.619
|
|
|
$0.558
|
|
|
$0.491
|
|
|
$0.402
|
|
|
View
|
|
|
$0.458
|
|
|
$0.44
|
|
|
$0.423
|
|
|
$0.392
|
|
Min.: 1
Mult.: 1
|
|
|
DPDT
|
100 MHz
|
6 GHz
|
0.9 dB
|
14 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
|
GaAs
|
|
SKY13411
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs SP4T HIGH POWER SWITCH 0.4 TO 3.8GHZ
- SKY5A5110
- Skyworks Solutions, Inc.
-
1:
$2.04
-
34,706In Stock
-
New Product
|
Mouser Part No
873-SKY5A5110
New Product
|
Skyworks Solutions, Inc.
|
RF Switch ICs SP4T HIGH POWER SWITCH 0.4 TO 3.8GHZ
|
|
34,706In Stock
|
|
|
$2.04
|
|
|
$1.30
|
|
|
$1.16
|
|
|
$0.951
|
|
|
$0.601
|
|
|
View
|
|
|
$0.829
|
|
|
$0.785
|
|
|
$0.661
|
|
|
$0.563
|
|
Min.: 1
Mult.: 1
|
|
|
SP4T
|
400 MHz
|
3.8 GHz
|
0.7 dB
|
|
- 40 C
|
+ 105 C
|
SMD/SMT
|
QFN-10
|
|
|
SKY5A5109
|
Reel, Cut Tape
|
|
|
|
RF Switch ICs .3-2500MHz IL+.3dB IP3 52dBm typ.
- AS169-73LF
- Skyworks Solutions, Inc.
-
1:
$2.13
-
86,049In Stock
|
Mouser Part No
873-AS169-73LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs .3-2500MHz IL+.3dB IP3 52dBm typ.
|
|
86,049In Stock
|
|
|
$2.13
|
|
|
$1.36
|
|
|
$1.21
|
|
|
$1.00
|
|
|
$0.633
|
|
|
View
|
|
|
$0.871
|
|
|
$0.826
|
|
|
$0.694
|
|
|
$0.576
|
|
Min.: 1
Mult.: 1
|
|
|
SPDT
|
300 kHz
|
2.5 GHz
|
0.4 dB
|
24 dB
|
- 40 C
|
+ 85 C
|
SMD/SMT
|
SOT-23-6
|
GaAs
|
|
AS169
|
Reel, Cut Tape, MouseReel
|
|
|
|
RF Switch ICs 0.7 - 3.8 GHz 100W High Power PIN Switch
- SKY12245-492LF
- Skyworks Solutions, Inc.
-
1:
$12.51
-
2,571In Stock
|
Mouser Part No
873-SKY12245-492LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs 0.7 - 3.8 GHz 100W High Power PIN Switch
|
|
2,571In Stock
|
|
|
$12.51
|
|
|
$9.84
|
|
|
$9.18
|
|
|
$8.43
|
|
|
View
|
|
|
$7.47
|
|
|
$8.08
|
|
|
$7.91
|
|
|
$7.80
|
|
|
$7.47
|
|
Min.: 1
Mult.: 1
|
|
|
SPDT
|
300 MHz
|
5 GHz
|
0.7 dB
|
17 dB
|
- 40 C
|
+ 105 C
|
SMD/SMT
|
QFN-20
|
Si
|
|
SKY12245
|
Reel, Cut Tape, MouseReel
|
|
South Africa