|
|
RF Switch ICs .1-3.0GHz SPDT GaAs IL .9dB Max
- SKY13354-368LF
- Skyworks Solutions, Inc.
-
1:
£0.934
-
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
|
|
|
£0.934
|
|
|
£0.676
|
|
|
£0.612
|
|
|
£0.541
|
|
|
£0.45
|
|
|
View
|
|
|
£0.507
|
|
|
£0.487
|
|
|
£0.471
|
|
|
£0.43
|
|
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:
£0.796
-
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
|
|
|
£0.796
|
|
|
£0.573
|
|
|
£0.518
|
|
|
£0.457
|
|
|
£0.377
|
|
|
View
|
|
|
£0.427
|
|
|
£0.409
|
|
|
£0.395
|
|
|
£0.361
|
|
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:
£3.57
-
12,609In Stock
|
Mouser Part No
873-SKY13408-465LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs 1-6GHz SP3T Typ. IIP3 54dBm
|
|
12,609In Stock
|
|
|
£3.57
|
|
|
£2.38
|
|
|
£2.22
|
|
|
£1.95
|
|
|
£1.35
|
|
|
View
|
|
|
£1.85
|
|
|
£1.65
|
|
|
£1.40
|
|
|
£1.32
|
|
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:
£2.23
-
16,820In Stock
|
Mouser Part No
873-AS183-92LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs .3-2500MHz IL .3dB IP3 +43dBm
|
|
16,820In Stock
|
|
|
£2.23
|
|
|
£1.44
|
|
|
£1.31
|
|
|
£1.10
|
|
|
£0.715
|
|
|
View
|
|
|
£1.04
|
|
|
£0.899
|
|
|
£0.773
|
|
|
£0.699
|
|
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:
£1.34
-
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
|
|
|
£1.34
|
|
|
£0.856
|
|
|
£0.766
|
|
|
£0.63
|
|
|
£0.40
|
|
|
View
|
|
|
£0.55
|
|
|
£0.521
|
|
|
£0.437
|
|
|
£0.366
|
|
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:
£1.18
-
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
|
|
|
£1.18
|
|
|
£0.718
|
|
|
£0.603
|
|
|
£0.457
|
|
|
£0.266
|
|
|
View
|
|
|
£0.395
|
|
|
£0.347
|
|
|
£0.29
|
|
|
£0.231
|
|
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:
£1.84
-
2,301In Stock
|
Mouser Part No
873-SKY5A1007
|
Skyworks Solutions, Inc.
|
RF Switch ICs DPDT for automotive CV2X based upon SKY1
|
|
2,301In Stock
|
|
|
£1.84
|
|
|
£1.18
|
|
|
£1.05
|
|
|
£0.863
|
|
|
£0.548
|
|
|
View
|
|
|
£0.751
|
|
|
£0.716
|
|
|
£0.601
|
|
|
£0.498
|
|
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:
£2.38
-
3,778In Stock
|
Mouser Part No
873-SKYA21070
|
Skyworks Solutions, Inc.
|
RF Switch ICs GaAs DPDT.01 to 6.0GHz
|
|
3,778In Stock
|
|
|
£2.38
|
|
|
£1.55
|
|
|
£1.42
|
|
|
£1.22
|
|
|
£0.788
|
|
|
View
|
|
|
£1.15
|
|
|
£1.00
|
|
|
£0.841
|
|
|
£0.773
|
|
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:
£1.15
-
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
|
|
|
£1.15
|
|
|
£0.738
|
|
|
£0.657
|
|
|
£0.541
|
|
|
£0.343
|
|
|
View
|
|
|
£0.472
|
|
|
£0.448
|
|
|
£0.375
|
|
|
£0.313
|
|
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:
£1.34
-
7,008In Stock
|
Mouser Part No
873-SKYA21039
|
Skyworks Solutions, Inc.
|
RF Switch ICs WIFI SP3T,Automotive version of SKY13586
|
|
7,008In Stock
|
|
|
£1.34
|
|
|
£0.856
|
|
|
£0.759
|
|
|
£0.63
|
|
|
£0.399
|
|
|
View
|
|
|
£0.549
|
|
|
£0.52
|
|
|
£0.437
|
|
|
£0.365
|
|
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:
£1.90
-
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
|
|
|
£1.90
|
|
|
£1.23
|
|
|
£1.10
|
|
|
£0.908
|
|
|
£0.571
|
|
|
View
|
|
|
£0.856
|
|
|
£0.743
|
|
|
£0.615
|
|
|
£0.56
|
|
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:
£2.07
-
2,969In Stock
|
Mouser Part No
873-SKY13638-700LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs MIPI SP10T LTE Tx/Rx
|
|
2,969In Stock
|
|
|
£2.07
|
|
|
£1.55
|
|
|
£1.41
|
|
|
£1.27
|
|
|
View
|
|
|
£1.03
|
|
|
£1.20
|
|
|
£1.15
|
|
|
£1.13
|
|
|
£1.03
|
|
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:
£1.96
-
4,133In Stock
|
Mouser Part No
873-SKY13698-694LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs Lower Insertion Loss Antenna Swap DPDT
|
|
4,133In Stock
|
|
|
£1.96
|
|
|
£1.26
|
|
|
£1.13
|
|
|
£0.934
|
|
|
£0.607
|
|
|
View
|
|
|
£0.871
|
|
|
£0.766
|
|
|
£0.668
|
|
|
£0.579
|
|
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:
£1.52
-
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
|
|
|
£1.52
|
|
|
£1.13
|
|
|
£1.03
|
|
|
£0.917
|
|
|
View
|
|
|
£0.727
|
|
|
£0.863
|
|
|
£0.834
|
|
|
£0.803
|
|
|
£0.727
|
|
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:
£1.99
-
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
|
|
|
£1.99
|
|
|
£1.29
|
|
|
£1.17
|
|
|
£0.995
|
|
|
£0.633
|
|
|
View
|
|
|
£0.934
|
|
|
£0.811
|
|
|
£0.691
|
|
|
£0.62
|
|
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:
£2.00
-
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
|
|
|
£2.00
|
|
|
£1.29
|
|
|
£1.17
|
|
|
£0.995
|
|
|
£0.643
|
|
|
View
|
|
|
£0.934
|
|
|
£0.811
|
|
|
£0.695
|
|
|
£0.629
|
|
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:
£0.96
-
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
|
|
|
£0.96
|
|
|
£0.696
|
|
|
£0.63
|
|
|
£0.557
|
|
|
View
|
|
|
£0.432
|
|
|
£0.523
|
|
|
£0.502
|
|
|
£0.485
|
|
|
£0.432
|
|
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:
£1.04
-
2,999In Stock
|
Mouser Part No
873-SKY85605-11
|
Skyworks Solutions, Inc.
|
RF Switch ICs 5GHz SW+LNA FEM
|
|
2,999In Stock
|
|
|
£1.04
|
|
|
£0.856
|
|
|
£0.788
|
|
|
£0.677
|
|
|
£0.449
|
|
|
View
|
|
|
£0.62
|
|
|
£0.588
|
|
|
£0.493
|
|
|
£0.409
|
|
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:
£1.01
-
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
|
|
|
£1.01
|
|
|
£0.615
|
|
|
£0.518
|
|
|
£0.393
|
|
|
£0.202
|
|
|
View
|
|
|
£0.34
|
|
|
£0.298
|
|
|
£0.238
|
|
|
£0.199
|
|
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:
£2.93
-
996In Stock
|
Mouser Part No
873-SKY13417-485LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs 100-3000MHz SP7T IL .45dB Iso >31dB
|
|
996In Stock
|
|
|
£2.93
|
|
|
£1.99
|
|
|
£1.84
|
|
|
£1.60
|
|
|
£1.02
|
|
|
View
|
|
|
£1.50
|
|
|
£1.32
|
|
|
£1.09
|
|
|
£1.00
|
|
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:
£2.30
-
1,820In Stock
|
Mouser Part No
873-SKY13626-685LF
|
Skyworks Solutions, Inc.
|
RF Switch ICs SP4T LTE
|
|
1,820In Stock
|
|
|
£2.30
|
|
|
£1.50
|
|
|
£1.37
|
|
|
£1.18
|
|
|
£0.759
|
|
|
View
|
|
|
£1.11
|
|
|
£0.969
|
|
|
£0.811
|
|
|
£0.748
|
|
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:
£0.653
-
1,911In Stock
-
3,000Expected 27/04/2026
|
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 27/04/2026
|
|
|
£0.653
|
|
|
£0.464
|
|
|
£0.419
|
|
|
£0.368
|
|
|
£0.302
|
|
|
View
|
|
|
£0.344
|
|
|
£0.33
|
|
|
£0.318
|
|
|
£0.294
|
|
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:
£1.53
-
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
|
|
|
£1.53
|
|
|
£0.978
|
|
|
£0.871
|
|
|
£0.714
|
|
|
£0.451
|
|
|
View
|
|
|
£0.622
|
|
|
£0.589
|
|
|
£0.496
|
|
|
£0.423
|
|
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:
£1.60
-
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
|
|
|
£1.60
|
|
|
£1.02
|
|
|
£0.908
|
|
|
£0.751
|
|
|
£0.475
|
|
|
View
|
|
|
£0.654
|
|
|
£0.62
|
|
|
£0.521
|
|
|
£0.432
|
|
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:
£9.39
-
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
|
|
|
£9.39
|
|
|
£7.39
|
|
|
£6.89
|
|
|
£6.33
|
|
|
View
|
|
|
£5.60
|
|
|
£6.07
|
|
|
£5.94
|
|
|
£5.86
|
|
|
£5.60
|
|
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
|
|
United Kingdom