|
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 12 Inch
- FMC0810316-12
- Fairview Microwave
-
1:
$89.48
-
463Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0810316-12
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 12 Inch
|
|
463Factory Stock Available
|
|
|
$89.48
|
|
|
$83.38
|
|
|
$82.13
|
|
|
$80.49
|
|
|
View
|
|
|
$76.82
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Straight
|
304.8 mm (12 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 120 Inch
- FMC0810316-120
- Fairview Microwave
-
1:
$133.63
-
463Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0810316-120
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 120 Inch
|
|
463Factory Stock Available
|
|
|
$133.63
|
|
|
$126.09
|
|
|
$124.19
|
|
|
$121.67
|
|
|
View
|
|
|
$116.06
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Straight
|
3.048 m (10 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 24 Inch
- FMC0810316-24
- Fairview Microwave
-
1:
$93.77
-
463Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0810316-24
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 24 Inch
|
|
463Factory Stock Available
|
|
|
$93.77
|
|
|
$87.38
|
|
|
$86.06
|
|
|
$84.34
|
|
|
View
|
|
|
$80.48
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Straight
|
609.6 mm (24 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 36 Inch
- FMC0810316-36
- Fairview Microwave
-
1:
$84.10
-
770Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0810316-36
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 36 Inch
|
|
770Factory Stock Available
|
|
|
$84.10
|
|
|
$78.37
|
|
|
$77.20
|
|
|
$75.66
|
|
|
View
|
|
|
$72.22
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Straight
|
914.4 mm (36 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 48 Inch
- FMC0810316-48
- Fairview Microwave
-
1:
$88.40
-
463Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0810316-48
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 48 Inch
|
|
463Factory Stock Available
|
|
|
$88.40
|
|
|
$82.38
|
|
|
$81.14
|
|
|
$79.53
|
|
|
View
|
|
|
$75.90
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Straight
|
1.219 m (4 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 60 Inch
- FMC0810316-60
- Fairview Microwave
-
1:
$101.27
-
463Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0810316-60
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 60 Inch
|
|
463Factory Stock Available
|
|
|
$101.27
|
|
|
$94.34
|
|
|
$92.94
|
|
|
$91.07
|
|
|
View
|
|
|
$86.89
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Straight
|
1.524 m (5 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 72 Inch
- FMC0810316-72
- Fairview Microwave
-
1:
$90.55
-
463Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0810316-72
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to 10-32 Male Cable RG-316 Coax in 72 Inch
|
|
463Factory Stock Available
|
|
|
$90.55
|
|
|
$84.38
|
|
|
$83.12
|
|
|
$81.46
|
|
|
View
|
|
|
$77.73
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Straight
|
1.829 m (6 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 12 Inch
- FMC0813316-12
- Fairview Microwave
-
1:
$84.10
-
2,670Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316-12
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 12 Inch
|
|
2,670Factory Stock Available
|
|
|
$84.10
|
|
|
$78.37
|
|
|
$77.20
|
|
|
$75.66
|
|
|
View
|
|
|
$72.22
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
304.8 mm (12 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 120 Inch
- FMC0813316-120
- Fairview Microwave
-
1:
$144.10
-
663Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316-120
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 120 Inch
|
|
663Factory Stock Available
|
|
|
$144.10
|
|
|
$135.95
|
|
|
$133.90
|
|
|
$131.19
|
|
|
View
|
|
|
$125.09
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
3.048 m (10 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 24 Inch
- FMC0813316-24
- Fairview Microwave
-
1:
$75.60
-
2,679Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316-24
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 24 Inch
|
|
2,679Factory Stock Available
|
|
|
$75.60
|
|
|
$71.01
|
|
|
$68.33
|
|
|
$67.41
|
|
|
View
|
|
|
$64.27
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
609.6 mm (24 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 36 Inch
- FMC0813316-36
- Fairview Microwave
-
1:
$85.18
-
2,212Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316-36
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 36 Inch
|
|
2,212Factory Stock Available
|
|
|
$85.18
|
|
|
$79.37
|
|
|
$78.19
|
|
|
$76.63
|
|
|
View
|
|
|
$73.13
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
914.4 mm (36 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 48 Inch
- FMC0813316-48
- Fairview Microwave
-
1:
$114.11
-
1,659Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316-48
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 48 Inch
|
|
1,659Factory Stock Available
|
|
|
$114.11
|
|
|
$106.27
|
|
|
$104.68
|
|
|
$102.58
|
|
|
View
|
|
|
$97.84
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
1.219 m (4 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 60 Inch
- FMC0813316-60
- Fairview Microwave
-
1:
$104.48
-
1,327Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316-60
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 60 Inch
|
|
1,327Factory Stock Available
|
|
|
$104.48
|
|
|
$97.34
|
|
|
$95.88
|
|
|
$93.96
|
|
|
View
|
|
|
$89.64
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
1.524 m (5 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 72 Inch
- FMC0813316-72
- Fairview Microwave
-
1:
$111.97
-
1,106Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316-72
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 72 Inch
|
|
1,106Factory Stock Available
|
|
|
$111.97
|
|
|
$104.30
|
|
|
$102.73
|
|
|
$100.66
|
|
|
View
|
|
|
$96.03
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
1.829 m (6 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coa Up To 2 GHz, 1.35 VSWRx in 12 Inch
- FMC0813316LF-12
- Fairview Microwave
-
1:
$67.48
-
2,670Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316LF-12
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coa Up To 2 GHz, 1.35 VSWRx in 12 Inch
|
|
2,670Factory Stock Available
|
|
|
$67.48
|
|
|
$62.77
|
|
|
$61.09
|
|
|
$59.63
|
|
|
View
|
|
|
$57.99
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
304.8 mm (12 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 36 Inch, LF Solder
- FMC0813316LF-36
- Fairview Microwave
-
1:
$67.48
-
2,212Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316LF-36
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 36 Inch, LF Solder
|
|
2,212Factory Stock Available
|
|
|
$67.48
|
|
|
$62.77
|
|
|
$61.09
|
|
|
$59.63
|
|
|
View
|
|
|
$57.99
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
914.4 mm (36 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 48 Inch, LF Solder
- FMC0813316LF-48
- Fairview Microwave
-
1:
$78.89
-
1,659Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0813316LF-48
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male (Plug) to SMA Female (Jack) Cable RG-316 Coax Up To 2 GHz, 1.35 VSWR in 48 Inch, LF Solder
|
|
1,659Factory Stock Available
|
|
|
$78.89
|
|
|
$74.11
|
|
|
$71.28
|
|
|
$70.34
|
|
|
View
|
|
|
$67.06
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Plug (Male)
|
Straight
|
SMA
|
Jack (Female)
|
Straight
|
1.219 m (4 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 24 Inch
- FMC0814315-24
- Fairview Microwave
-
1:
$106.62
-
276Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0814315-24
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 24 Inch
|
|
276Factory Stock Available
|
|
|
$106.62
|
|
|
$99.33
|
|
|
$97.84
|
|
|
$95.88
|
|
|
View
|
|
|
$91.48
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Right Angle
|
609.6 mm (24 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 36 Inch
- FMC0814315-36
- Fairview Microwave
-
1:
$111.97
-
276Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0814315-36
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 36 Inch
|
|
276Factory Stock Available
|
|
|
$111.97
|
|
|
$104.30
|
|
|
$102.73
|
|
|
$100.66
|
|
|
View
|
|
|
$96.03
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Right Angle
|
914.4 mm (36 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 48 Inch
- FMC0814315-48
- Fairview Microwave
-
1:
$116.25
-
276Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0814315-48
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 48 Inch
|
|
276Factory Stock Available
|
|
|
$116.25
|
|
|
$108.28
|
|
|
$106.64
|
|
|
$104.48
|
|
|
View
|
|
|
$99.67
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Right Angle
|
1.219 m (4 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 60 Inch
- FMC0814315-60
- Fairview Microwave
-
1:
$137.82
-
276Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0814315-60
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 60 Inch
|
|
276Factory Stock Available
|
|
|
$137.82
|
|
|
$130.04
|
|
|
$128.06
|
|
|
$125.48
|
|
|
View
|
|
|
$119.67
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Right Angle
|
1.524 m (5 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 72 Inch
- FMC0814315-72
- Fairview Microwave
-
1:
$142.00
-
276Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0814315-72
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to RA 10-32 Male Cable RG-316 Coax in 72 Inch
|
|
276Factory Stock Available
|
|
|
$142.00
|
|
|
$133.99
|
|
|
$131.95
|
|
|
$129.28
|
|
|
View
|
|
|
$123.30
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
Straight
|
10/32
|
Plug (Male)
|
Right Angle
|
1.829 m (6 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to SMB Plug Cable RG-316 Coax in 12 Inch
- FMC0816315-12
- Fairview Microwave
-
1:
$59.67
-
2,544Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0816315-12
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to SMB Plug Cable RG-316 Coax in 12 Inch
|
|
2,544Factory Stock Available
|
|
|
$59.67
|
|
|
$55.52
|
|
|
$54.04
|
|
|
$52.77
|
|
|
View
|
|
|
$51.31
|
|
|
$50.03
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
|
SMB
|
Plug (Male)
|
Straight
|
304.8 mm (12 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to SMB Plug Cable RG-316 Coax in 120 Inch
- FMC0816315-120
- Fairview Microwave
-
1:
$125.22
-
603Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0816315-120
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to SMB Plug Cable RG-316 Coax in 120 Inch
|
|
603Factory Stock Available
|
|
|
$125.22
|
|
|
$118.18
|
|
|
$116.39
|
|
|
$114.04
|
|
|
View
|
|
|
$108.78
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
|
SMB
|
Plug (Male)
|
Straight
|
3.048 m (10 ft)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
|
|
RF Cable Assemblies BNC Male to SMB Plug Cable RG-316 Coax in 18
- FMC0816315-18
- Fairview Microwave
-
1:
$70.09
-
2,544Factory Stock Available
-
New At Mouser
|
Mouser Part No
67-FMC0816315-18
New At Mouser
|
Fairview Microwave
|
RF Cable Assemblies BNC Male to SMB Plug Cable RG-316 Coax in 18
|
|
2,544Factory Stock Available
|
|
|
$70.09
|
|
|
$65.86
|
|
|
$63.36
|
|
|
$62.53
|
|
|
View
|
|
|
$59.62
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
BNC
|
Pin (Male)
|
|
SMB
|
Plug (Male)
|
Straight
|
457.2 mm (18 in)
|
50 Ohms
|
2 GHz
|
RG-316
|
|
Bag
|
|
South Africa