|
|
Linear Voltage Regulators 3-Trm 100mA Adj Pos Voltage Regulator
- LM317LCLPRE3
- Texas Instruments
-
1:
$1.19
-
57,355In Stock
|
Mouser Part No
595-LM317LCLPRE3
|
Texas Instruments
|
Linear Voltage Regulators 3-Trm 100mA Adj Pos Voltage Regulator
|
|
57,355In Stock
|
|
|
$1.19
|
|
|
$0.864
|
|
|
$0.782
|
|
|
$0.69
|
|
|
$0.58
|
|
|
View
|
|
|
$0.647
|
|
|
$0.621
|
|
|
$0.608
|
|
|
$0.566
|
|
Min.: 1
Mult.: 1
:
2,000
|
|
|
LM317L
|
Through Hole
|
TO-92-3
|
1 Output
|
Positive
|
1.25 V to 32 V
|
100 mA
|
Adjustable
|
|
|
0 C
|
+ 125 C
|
1.5 mA
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Linear Voltage Regulators 10.0V 100mA
- UA78L10ACD
- Texas Instruments
-
1:
$1.90
-
20,215In Stock
|
Mouser Part No
595-UA78L10ACD
|
Texas Instruments
|
Linear Voltage Regulators 10.0V 100mA
|
|
20,215In Stock
|
|
|
$1.90
|
|
|
$1.40
|
|
|
$1.16
|
|
|
$1.10
|
|
|
View
|
|
|
$1.05
|
|
|
$1.03
|
|
|
$1.02
|
|
|
$0.961
|
|
|
$0.94
|
|
Min.: 1
Mult.: 1
|
|
|
UA78L
|
SMD/SMT
|
SOIC-8
|
1 Output
|
Positive
|
10 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Tube
|
|
|
|
Linear Voltage Regulators 3-Trm 100mA Adj Pos Voltage Regulator A A 595-LM317LCDR
- LM317LCD
- Texas Instruments
-
1:
$1.14
-
67,616In Stock
|
Mouser Part No
595-LM317LCD
|
Texas Instruments
|
Linear Voltage Regulators 3-Trm 100mA Adj Pos Voltage Regulator A A 595-LM317LCDR
|
|
67,616In Stock
|
|
|
$1.14
|
|
|
$0.804
|
|
|
$0.716
|
|
|
$0.668
|
|
|
View
|
|
|
$0.635
|
|
|
$0.614
|
|
|
$0.575
|
|
|
$0.568
|
|
Min.: 1
Mult.: 1
|
|
|
LM317L
|
SMD/SMT
|
SOIC-8
|
1 Output
|
Positive
|
1.25 V to 32 V
|
100 mA
|
Adjustable
|
|
|
0 C
|
+ 125 C
|
1.5 mA
|
|
Tube
|
|
|
|
Linear Voltage Regulators 5V 500mA Fixed Pos V oltage Regulator AL ALT 595-UA78M05CDCY
- UA78M05CDCYG3
- Texas Instruments
-
1:
$0.99
-
65,856In Stock
|
Mouser Part No
595-UA78M05CDCYG3
|
Texas Instruments
|
Linear Voltage Regulators 5V 500mA Fixed Pos V oltage Regulator AL ALT 595-UA78M05CDCY
|
|
65,856In Stock
|
|
|
$0.99
|
|
|
$0.711
|
|
|
$0.576
|
|
|
$0.544
|
|
|
View
|
|
|
$0.519
|
|
|
$0.502
|
|
|
$0.486
|
|
|
$0.469
|
|
|
$0.457
|
|
Min.: 1
Mult.: 1
|
|
|
UA78M
|
SMD/SMT
|
SOT-223-4
|
1 Output
|
Positive
|
5 V
|
500 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Tube
|
|
|
|
Linear Voltage Regulators 3-Terminal Adj Negat ive Reg
- LM337H/NOPB
- Texas Instruments
-
1:
$22.18
-
1,029In Stock
|
Mouser Part No
926-LM337H/NOPB
|
Texas Instruments
|
Linear Voltage Regulators 3-Terminal Adj Negat ive Reg
|
|
1,029In Stock
|
|
|
$22.18
|
|
|
$19.68
|
|
|
$19.06
|
|
|
$18.38
|
|
|
View
|
|
|
$18.04
|
|
|
$17.85
|
|
Min.: 1
Mult.: 1
|
|
|
LM337
|
Through Hole
|
TO-39-3
|
1 Output
|
Negative
|
- 37 V to - 1.2 V
|
1.5 A
|
Adjustable
|
|
|
- 55 C
|
+ 125 C
|
65 uA
|
|
Bulk
|
|
|
|
Linear Voltage Regulators 8Pin 100mA Adj Vltg Reg A 595-LM317LIDR A 595-LM317LIDR
- LM317LID
- Texas Instruments
-
1:
$1.27
-
9,167In Stock
|
Mouser Part No
595-LM317LID
|
Texas Instruments
|
Linear Voltage Regulators 8Pin 100mA Adj Vltg Reg A 595-LM317LIDR A 595-LM317LIDR
|
|
9,167In Stock
|
|
|
$1.27
|
|
|
$0.921
|
|
|
$0.755
|
|
|
$0.715
|
|
|
View
|
|
|
$0.683
|
|
|
$0.662
|
|
|
$0.604
|
|
|
$0.576
|
|
|
$0.568
|
|
Min.: 1
Mult.: 1
|
|
|
LM317L
|
SMD/SMT
|
SOIC-8
|
1 Output
|
Positive
|
1.25 V to 32 V
|
100 mA
|
Adjustable
|
|
|
- 40 C
|
+ 125 C
|
1.5 mA
|
|
Tube
|
|
|
|
Linear Voltage Regulators 3 Pin 1.5A Adj Neg V ltg Reg ALT 595-LM3 ALT 595-LM337KTTR
- LM337KTTRG3
- Texas Instruments
-
1:
$3.38
-
1,176In Stock
|
Mouser Part No
595-LM337KTTRG3
|
Texas Instruments
|
Linear Voltage Regulators 3 Pin 1.5A Adj Neg V ltg Reg ALT 595-LM3 ALT 595-LM337KTTR
|
|
1,176In Stock
|
|
|
$3.38
|
|
|
$2.52
|
|
|
$2.30
|
|
|
$2.07
|
|
|
$1.90
|
|
|
View
|
|
|
$1.95
|
|
|
$1.80
|
|
|
$1.76
|
|
|
$1.72
|
|
Min.: 1
Mult.: 1
:
500
|
|
|
LM337
|
SMD/SMT
|
D2PAK-3 (TO-263-3)
|
1 Output
|
Negative
|
- 37 V to - 1.2 V
|
1.5 A
|
Adjustable
|
|
|
0 C
|
+ 125 C
|
1.5 mA
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Linear Voltage Regulators 3-Trm 100mA Adj Pos Voltage Regulator
- TL317CLPR
- Texas Instruments
-
1:
$3.83
-
2,461In Stock
|
Mouser Part No
595-TL317CLPR
|
Texas Instruments
|
Linear Voltage Regulators 3-Trm 100mA Adj Pos Voltage Regulator
|
|
2,461In Stock
|
|
|
$3.83
|
|
|
$2.85
|
|
|
$2.61
|
|
|
$2.34
|
|
|
$1.98
|
|
|
View
|
|
|
$2.21
|
|
|
$2.16
|
|
|
$2.05
|
|
|
$1.94
|
|
Min.: 1
Mult.: 1
:
2,000
|
|
|
TL317
|
Through Hole
|
TO-92-3
|
1 Output
|
Positive
|
1.25 V to 32 V
|
100 mA
|
Adjustable
|
|
|
0 C
|
+ 125 C
|
50 uA
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Linear Voltage Regulators 5.0V 100mA A 595-UA7 8L05ACLP A 595-UA78 A 595-UA78L05ACLP
- UA78L05ACLPR
- Texas Instruments
-
1:
$1.26
-
4,157In Stock
|
Mouser Part No
595-UA78L05ACLPR
|
Texas Instruments
|
Linear Voltage Regulators 5.0V 100mA A 595-UA7 8L05ACLP A 595-UA78 A 595-UA78L05ACLP
|
|
4,157In Stock
|
|
|
$1.26
|
|
|
$0.904
|
|
|
$0.818
|
|
|
$0.723
|
|
|
$0.605
|
|
|
View
|
|
|
$0.678
|
|
|
$0.652
|
|
|
$0.623
|
|
|
$0.59
|
|
Min.: 1
Mult.: 1
:
2,000
|
|
|
UA78L
|
Through Hole
|
TO-92-3
|
1 Output
|
Positive
|
5 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Linear Voltage Regulators 3.3 V 500mA Fix Pos Voltage Regulator AL ALT 595-UA78M33CKCS
- UA78M33CKCSE3
- Texas Instruments
-
1:
$5.04
-
529In Stock
|
Mouser Part No
595-UA78M33CKCSE3
|
Texas Instruments
|
Linear Voltage Regulators 3.3 V 500mA Fix Pos Voltage Regulator AL ALT 595-UA78M33CKCS
|
|
529In Stock
|
|
|
$5.04
|
|
|
$3.83
|
|
|
$3.34
|
|
|
$3.19
|
|
|
View
|
|
|
$3.06
|
|
|
$3.04
|
|
|
$2.86
|
|
|
$2.80
|
|
Min.: 1
Mult.: 1
|
|
|
UA78M
|
Through Hole
|
TO-220-3
|
1 Output
|
Positive
|
3.3 V
|
500 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Tube
|
|
|
|
Linear Voltage Regulators 15V Fixed Neg
- MC79L15ACLP
- Texas Instruments
-
1:
$1.49
-
2,086In Stock
|
Mouser Part No
595-MC79L15ACLP
|
Texas Instruments
|
Linear Voltage Regulators 15V Fixed Neg
|
|
2,086In Stock
|
|
|
$1.49
|
|
|
$1.09
|
|
|
$0.987
|
|
|
$0.876
|
|
|
View
|
|
|
$0.823
|
|
|
$0.791
|
|
|
$0.782
|
|
|
$0.722
|
|
|
$0.716
|
|
Min.: 1
Mult.: 1
|
|
|
MC79L
|
Through Hole
|
TO-92-3
|
1 Output
|
Negative
|
- 15 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6.5 mA
|
|
Bulk
|
|
|
|
Linear Voltage Regulators 12V 100mA Fixed Pos Voltage Regulator AL ALT 595-UA78L12ACD
- UA78L12ACDG4
- Texas Instruments
-
1:
$1.30
-
2,433In Stock
|
Mouser Part No
595-UA78L12ACDG4
|
Texas Instruments
|
Linear Voltage Regulators 12V 100mA Fixed Pos Voltage Regulator AL ALT 595-UA78L12ACD
|
|
2,433In Stock
|
|
|
$1.30
|
|
|
$0.941
|
|
|
$0.852
|
|
|
$0.752
|
|
|
View
|
|
|
$0.704
|
|
|
$0.676
|
|
|
$0.647
|
|
|
$0.628
|
|
|
$0.613
|
|
Min.: 1
Mult.: 1
|
|
|
UA78L
|
SMD/SMT
|
SOIC-8
|
1 Output
|
Positive
|
12 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6.5 mA
|
|
Tube
|
|
|
|
Linear Voltage Regulators .1A 5V Neg V
- MC79L05ACD
- Texas Instruments
-
1:
$1.40
-
14,989In Stock
|
Mouser Part No
595-MC79L05ACD
|
Texas Instruments
|
Linear Voltage Regulators .1A 5V Neg V
|
|
14,989In Stock
|
|
|
$1.40
|
|
|
$1.02
|
|
|
$0.836
|
|
|
$0.793
|
|
|
View
|
|
|
$0.758
|
|
|
$0.735
|
|
|
$0.668
|
|
|
$0.641
|
|
|
$0.633
|
|
Min.: 1
Mult.: 1
|
|
|
MC79L
|
SMD/SMT
|
SOIC-8
|
1 Output
|
Negative
|
- 5 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Tube
|
|
|
|
Linear Voltage Regulators 5V 100mA Fixed Pos V oltage Regulator
- UA78L05CDRE4
- Texas Instruments
-
1:
$1.26
-
2,536In Stock
|
Mouser Part No
595-UA78L05CDRE4
|
Texas Instruments
|
Linear Voltage Regulators 5V 100mA Fixed Pos V oltage Regulator
|
|
2,536In Stock
|
|
|
$1.26
|
|
|
$0.90
|
|
|
$0.814
|
|
|
$0.72
|
|
|
$0.60
|
|
|
View
|
|
|
$0.675
|
|
|
$0.647
|
|
|
$0.618
|
|
|
$0.586
|
|
Min.: 1
Mult.: 1
:
2,500
|
|
|
UA78L
|
SMD/SMT
|
SOIC-8
|
1 Output
|
Positive
|
5 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Linear Voltage Regulators 5V 100mA Fixed Pos V oltage Regulator AL ALT 595-UA78L05CLP
- UA78L05CLPE3
- Texas Instruments
-
1:
$1.92
-
1,568In Stock
|
Mouser Part No
595-UA78L05CLPE3
|
Texas Instruments
|
Linear Voltage Regulators 5V 100mA Fixed Pos V oltage Regulator AL ALT 595-UA78L05CLP
|
|
1,568In Stock
|
|
|
$1.92
|
|
|
$1.42
|
|
|
$1.29
|
|
|
$1.15
|
|
|
View
|
|
|
$1.08
|
|
|
$1.05
|
|
|
$1.03
|
|
|
$0.975
|
|
|
$0.954
|
|
Min.: 1
Mult.: 1
|
|
|
UA78L
|
Through Hole
|
TO-92-3
|
1 Output
|
Positive
|
5 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Bulk
|
|
|
|
Linear Voltage Regulators 8V 100mA Fixed Pos V oltage Regulator AL ALT 595-UA78L08ACLP
- UA78L08ACLPE3
- Texas Instruments
-
1:
$1.76
-
2,418In Stock
|
Mouser Part No
595-UA78L08ACLPE3
|
Texas Instruments
|
Linear Voltage Regulators 8V 100mA Fixed Pos V oltage Regulator AL ALT 595-UA78L08ACLP
|
|
2,418In Stock
|
|
|
$1.76
|
|
|
$1.29
|
|
|
$1.17
|
|
|
$1.04
|
|
|
View
|
|
|
$0.976
|
|
|
$0.94
|
|
|
$0.934
|
|
|
$0.877
|
|
|
$0.857
|
|
Min.: 1
Mult.: 1
|
|
|
UA78L
|
Through Hole
|
TO-92-3
|
1 Output
|
Positive
|
8 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Bulk
|
|
|
|
Linear Voltage Regulators 12V 100mA Fixed Pos Voltage Regulator A A 595-UA78L12ACLP
- UA78L12ACLPR
- Texas Instruments
-
1:
$1.41
-
2,713In Stock
|
Mouser Part No
595-UA78L12ACLPR
|
Texas Instruments
|
Linear Voltage Regulators 12V 100mA Fixed Pos Voltage Regulator A A 595-UA78L12ACLP
|
|
2,713In Stock
|
|
|
$1.41
|
|
|
$1.03
|
|
|
$0.93
|
|
|
$0.825
|
|
|
View
|
|
|
$0.673
|
|
|
$0.775
|
|
|
$0.744
|
|
|
$0.716
|
|
|
$0.673
|
|
Min.: 1
Mult.: 1
:
2,000
|
|
|
UA78L
|
Through Hole
|
TO-92-3
|
1 Output
|
Positive
|
12 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6.5 mA
|
|
Reel, Cut Tape
|
|
|
|
Linear Voltage Regulators 3.3 V 500mA Fix Pos Voltage Regulator AL ALT 595-UA78M33CDCY
- UA78M33CDCYG3
- Texas Instruments
-
1:
$1.27
-
13,830In Stock
|
Mouser Part No
595-UA78M33CDCYG3
|
Texas Instruments
|
Linear Voltage Regulators 3.3 V 500mA Fix Pos Voltage Regulator AL ALT 595-UA78M33CDCY
|
|
13,830In Stock
|
|
|
$1.27
|
|
|
$0.923
|
|
|
$0.754
|
|
|
$0.714
|
|
|
View
|
|
|
$0.683
|
|
|
$0.661
|
|
|
$0.637
|
|
|
$0.618
|
|
|
$0.604
|
|
Min.: 1
Mult.: 1
|
|
|
UA78M
|
SMD/SMT
|
SOT-223-4
|
1 Output
|
Positive
|
3.3 V
|
500 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Tube
|
|
|
|
Linear Voltage Regulators 1.5-A 40-V adjusta b le linear voltage r
- LM317AH/NOPB
- Texas Instruments
-
1:
$27.97
-
239In Stock
|
Mouser Part No
926-LM317AH/NOPB
|
Texas Instruments
|
Linear Voltage Regulators 1.5-A 40-V adjusta b le linear voltage r
|
|
239In Stock
|
|
|
$27.97
|
|
|
$22.54
|
|
|
$21.19
|
|
|
$19.69
|
|
|
View
|
|
|
$19.12
|
|
|
$18.67
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
LM317A
|
Through Hole
|
TO-39-3
|
1 Output
|
Positive
|
1.25 V to 37 V
|
1.5 A
|
Adjustable
|
|
|
- 40 C
|
+ 125 C
|
5 mA
|
|
Bulk
|
|
|
|
Linear Voltage Regulators 3-Trm 100mA Adj Pos Voltage Regulator A A 595-LM317LCLPR
- LM317LCLP
- Texas Instruments
-
1:
$1.93
-
2,489In Stock
|
Mouser Part No
595-LM317LCLP
|
Texas Instruments
|
Linear Voltage Regulators 3-Trm 100mA Adj Pos Voltage Regulator A A 595-LM317LCLPR
|
|
2,489In Stock
|
|
|
$1.93
|
|
|
$1.43
|
|
|
$1.30
|
|
|
$1.16
|
|
|
View
|
|
|
$1.09
|
|
|
$1.06
|
|
|
$1.04
|
|
|
$0.948
|
|
Min.: 1
Mult.: 1
|
|
|
LM317L
|
Through Hole
|
TO-92-3
|
1 Output
|
Positive
|
1.25 V to 32 V
|
100 mA
|
Adjustable
|
|
|
0 C
|
+ 125 C
|
1.5 mA
|
|
Bulk
|
|
|
|
Linear Voltage Regulators 500-mA low-noise ul tra-low-IQ high-PSRR
- TPS7A2133PYWDJ
- Texas Instruments
-
1:
$0.80
-
12,905In Stock
|
Mouser Part No
595-TPS7A2133PYWDJ
|
Texas Instruments
|
Linear Voltage Regulators 500-mA low-noise ul tra-low-IQ high-PSRR
|
|
12,905In Stock
|
|
|
$0.80
|
|
|
$0.563
|
|
|
$0.506
|
|
|
$0.442
|
|
|
View
|
|
|
$0.341
|
|
|
$0.412
|
|
|
$0.394
|
|
|
$0.379
|
|
|
$0.369
|
|
|
$0.341
|
|
|
$0.341
|
|
Min.: 1
Mult.: 1
:
12,000
|
|
|
TPS7A21
|
SMD/SMT
|
DSBGA-4
|
1 Output
|
Positive
|
800 mV to 5.5 V
|
500 mA
|
Adjustable
|
|
|
- 40 C
|
+ 125 C
|
7 uA
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Linear Voltage Regulators Adj 150mA Precision Voltage Regulator
- UA723CNSR
- Texas Instruments
-
1:
$1.76
-
3,878In Stock
|
Mouser Part No
595-UA723CNSR
|
Texas Instruments
|
Linear Voltage Regulators Adj 150mA Precision Voltage Regulator
|
|
3,878In Stock
|
|
|
$1.76
|
|
|
$1.57
|
|
|
$1.50
|
|
|
$1.37
|
|
|
View
|
|
|
$1.13
|
|
|
$1.29
|
|
|
$1.26
|
|
|
$1.21
|
|
|
$1.13
|
|
Min.: 1
Mult.: 1
:
2,000
|
|
|
UA723
|
SMD/SMT
|
SOIC-14
|
1 Output
|
Positive
|
2 V to 37 V
|
150 mA
|
Adjustable
|
|
|
0 C
|
+ 70 C
|
2.3 mA
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Linear Voltage Regulators 9V 100mA Fixed Pos V oltage Regulator
- UA78L09ACDR
- Texas Instruments
-
1:
$1.15
-
4,010In Stock
|
Mouser Part No
595-UA78L09ACDR
|
Texas Instruments
|
Linear Voltage Regulators 9V 100mA Fixed Pos V oltage Regulator
|
|
4,010In Stock
|
|
|
$1.15
|
|
|
$0.833
|
|
|
$0.752
|
|
|
$0.664
|
|
|
View
|
|
|
$0.495
|
|
|
$0.587
|
|
|
$0.505
|
|
|
$0.495
|
|
|
$0.495
|
|
Min.: 1
Mult.: 1
:
2,500
|
|
|
UA78L
|
SMD/SMT
|
SOIC-8
|
1 Output
|
Positive
|
9 V
|
100 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
6 mA
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Linear Voltage Regulators 5V 500mA Fixed Pos V oltage Regulator AL ALT 595-UA78M05IKCS
- UA78M05IKCSE3
- Texas Instruments
-
1:
$4.97
-
635In Stock
|
Mouser Part No
595-UA78M05IKCSE3
|
Texas Instruments
|
Linear Voltage Regulators 5V 500mA Fixed Pos V oltage Regulator AL ALT 595-UA78M05IKCS
|
|
635In Stock
|
|
|
$4.97
|
|
|
$3.78
|
|
|
$3.40
|
|
|
$3.15
|
|
|
View
|
|
|
$2.99
|
|
|
$2.90
|
|
|
$2.86
|
|
|
$2.83
|
|
Min.: 1
Mult.: 1
|
|
|
UA78M
|
Through Hole
|
TO-220-3
|
1 Output
|
Positive
|
5 V
|
500 mA
|
Fixed
|
|
|
- 40 C
|
+ 125 C
|
6 mA
|
|
Tube
|
|
|
|
Linear Voltage Regulators 5V 500mA Fixed Neg V oltage Regulator
- UA79M05CKVURG3
- Texas Instruments
-
1:
$1.26
-
12,866In Stock
|
Mouser Part No
595-UA79M05CKVURG3
|
Texas Instruments
|
Linear Voltage Regulators 5V 500mA Fixed Neg V oltage Regulator
|
|
12,866In Stock
|
|
|
$1.26
|
|
|
$0.909
|
|
|
$0.823
|
|
|
$0.728
|
|
|
$0.608
|
|
|
View
|
|
|
$0.683
|
|
|
$0.655
|
|
|
$0.634
|
|
|
$0.607
|
|
Min.: 1
Mult.: 1
:
2,500
|
|
|
UA79M
|
SMD/SMT
|
TO-252-3
|
1 Output
|
Negative
|
- 5 V
|
500 mA
|
Fixed
|
|
|
0 C
|
+ 125 C
|
2 mA
|
|
Reel, Cut Tape, MouseReel
|
|
South Africa