|
|
Trimmer Resistors - Through Hole 5/16" TRIMPOT 200uH RND 4TURN CERMET
- 3339W-1-201LF
- Bourns
-
1:
Rp156.675
-
40In Stock
|
Mouser Part No
652-3339W-1-201LF
|
Bourns
|
Trimmer Resistors - Through Hole 5/16" TRIMPOT 200uH RND 4TURN CERMET
|
|
40In Stock
|
|
|
Rp156.675
|
|
|
Rp126.037
|
|
|
Rp107.508
|
|
|
Rp101.086
|
|
|
View
|
|
|
Rp90.262
|
|
|
Rp83.474
|
|
|
Rp78.888
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
200 Ohms
|
Side Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Horizontal Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 2K 5/16" Rnd 4Turn Cermet
- 3339W-1-202LF
- Bourns
-
1:
Rp156.675
-
67In Stock
|
Mouser Part No
652-3339W-1-202LF
|
Bourns
|
Trimmer Resistors - Through Hole 2K 5/16" Rnd 4Turn Cermet
|
|
67In Stock
|
|
|
Rp156.675
|
|
|
Rp126.037
|
|
|
Rp107.508
|
|
|
Rp101.086
|
|
|
View
|
|
|
Rp90.262
|
|
|
Rp83.474
|
|
|
Rp78.888
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
2 kOhms
|
Side Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Horizontal Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 20K 5/16" Rnd 4Turn Cermet
- 3339W-1-203LF
- Bourns
-
1:
Rp129.339
-
100In Stock
|
Mouser Part No
652-3339W-1-203LF
|
Bourns
|
Trimmer Resistors - Through Hole 20K 5/16" Rnd 4Turn Cermet
|
|
100In Stock
|
|
|
Rp129.339
|
|
|
Rp99.986
|
|
|
Rp94.298
|
|
|
Rp89.162
|
|
|
View
|
|
|
Rp79.622
|
|
|
Rp75.035
|
|
|
Rp72.100
|
|
|
Rp71.916
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
20 kOhms
|
Side Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Horizontal Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 500ohm 5/16" Rnd 4Turn Cermet
- 3339W-1-501LF
- Bourns
-
1:
Rp129.339
-
89In Stock
|
Mouser Part No
652-3339W-1-501LF
|
Bourns
|
Trimmer Resistors - Through Hole 500ohm 5/16" Rnd 4Turn Cermet
|
|
89In Stock
|
|
|
Rp129.339
|
|
|
Rp99.986
|
|
|
Rp94.298
|
|
|
Rp87.510
|
|
|
View
|
|
|
Rp82.190
|
|
|
Rp76.870
|
|
|
Rp73.751
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
500 Ohms
|
Side Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Horizontal Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 50K 5/16" Rnd 4Turn Cermet
- 3339W-1-503LF
- Bourns
-
1:
Rp129.339
-
193In Stock
|
Mouser Part No
652-3339W-1-503LF
|
Bourns
|
Trimmer Resistors - Through Hole 50K 5/16" Rnd 4Turn Cermet
|
|
193In Stock
|
|
|
Rp129.339
|
|
|
Rp99.986
|
|
|
Rp94.482
|
|
|
Rp87.877
|
|
|
View
|
|
|
Rp82.740
|
|
|
Rp78.154
|
|
|
Rp73.751
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
50 kOhms
|
Side Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Horizontal Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 5/16" TRIMPOT 500K RND 4-TURN CERMET
- 3339W-1-504LF
- Bourns
-
1:
Rp129.339
-
48In Stock
|
Mouser Part No
652-3339W-1-504LF
|
Bourns
|
Trimmer Resistors - Through Hole 5/16" TRIMPOT 500K RND 4-TURN CERMET
|
|
48In Stock
|
|
|
Rp129.339
|
|
|
Rp99.986
|
|
|
Rp94.298
|
|
|
Rp86.410
|
|
|
View
|
|
|
Rp81.089
|
|
|
Rp76.136
|
|
|
Rp73.384
|
|
|
Rp73.017
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
500 kOhms
|
Side Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Horizontal Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 10K 5/16" Rnd 4Turn Cermet
- 3339H-1-103
- Bourns
-
1:
Rp163.830
-
11In Stock
|
Mouser Part No
652-3339H-1-103
|
Bourns
|
Trimmer Resistors - Through Hole 10K 5/16" Rnd 4Turn Cermet
|
|
11In Stock
|
|
|
Rp163.830
|
|
|
Rp131.908
|
|
|
Rp112.461
|
|
|
Rp105.673
|
|
|
View
|
|
|
Rp94.482
|
|
|
Rp87.327
|
|
|
Rp82.557
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
10 kOhms
|
Top Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 100K 5/16" Rnd 4Turn Cermet
- 3339H-1-104
- Bourns
-
1:
Rp134.660
-
125In Stock
|
Mouser Part No
652-3339H-1-104
|
Bourns
|
Trimmer Resistors - Through Hole 100K 5/16" Rnd 4Turn Cermet
|
|
125In Stock
|
|
|
Rp134.660
|
|
|
Rp104.205
|
|
|
Rp98.335
|
|
|
Rp92.831
|
|
|
View
|
|
|
Rp85.859
|
|
|
Rp80.539
|
|
|
Rp76.870
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
100 kOhms
|
Top Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 50K 5/16" Rnd 4Turn Cermet
- 3339H-1-503
- Bourns
-
1:
Rp134.660
-
99In Stock
|
Mouser Part No
652-3339H-1-503
|
Bourns
|
Trimmer Resistors - Through Hole 50K 5/16" Rnd 4Turn Cermet
|
|
99In Stock
|
|
|
Rp134.660
|
|
|
Rp104.205
|
|
|
Rp98.335
|
|
|
Rp92.831
|
|
|
View
|
|
|
Rp84.759
|
|
|
Rp79.622
|
|
|
Rp76.686
|
|
|
Rp76.319
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
50 kOhms
|
Top Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 1K 5/16" Rnd 4Turn Cermet
- 3339P-1-102
- Bourns
-
1:
Rp134.660
-
73In Stock
|
Mouser Part No
652-3339P-1-102
|
Bourns
|
Trimmer Resistors - Through Hole 1K 5/16" Rnd 4Turn Cermet
|
|
73In Stock
|
|
|
Rp134.660
|
|
|
Rp104.205
|
|
|
Rp98.335
|
|
|
Rp89.712
|
|
|
View
|
|
|
Rp84.025
|
|
|
Rp78.888
|
|
|
Rp75.402
|
|
|
Rp75.035
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
1 kOhms
|
Top Adjust
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 100K 5/16" Rnd 4Turn Cermet
- 3339P-1-104
- Bourns
-
1:
Rp134.660
-
42In Stock
-
100Expected 21/09/2026
|
Mouser Part No
652-3339P-1-104
|
Bourns
|
Trimmer Resistors - Through Hole 100K 5/16" Rnd 4Turn Cermet
|
|
42In Stock
100Expected 21/09/2026
|
|
|
Rp134.660
|
|
|
Rp104.205
|
|
|
Rp98.335
|
|
|
Rp89.345
|
|
|
View
|
|
|
Rp83.658
|
|
|
Rp78.888
|
|
|
Rp75.402
|
|
|
Rp75.035
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
100 kOhms
|
Top Adjust
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 200ohm 5/16" Rnd 4Turn Cermet
- 3339P-1-201
- Bourns
-
1:
Rp133.375
-
107In Stock
|
Mouser Part No
652-3339P-1-201
|
Bourns
|
Trimmer Resistors - Through Hole 200ohm 5/16" Rnd 4Turn Cermet
|
|
107In Stock
|
|
|
Rp133.375
|
|
|
Rp104.572
|
|
|
Rp82.557
|
|
|
Rp71.366
|
|
|
View
|
|
|
Rp69.531
|
|
|
Rp67.697
|
|
|
Rp66.046
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
200 Ohms
|
Top Adjust
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 2K 5/16" Rnd 4Turn Cermet
- 3339P-1-202
- Bourns
-
1:
Rp164.013
-
72In Stock
|
Mouser Part No
652-3339P-1-202
|
Bourns
|
Trimmer Resistors - Through Hole 2K 5/16" Rnd 4Turn Cermet
|
|
72In Stock
|
|
|
Rp164.013
|
|
|
Rp132.091
|
|
|
Rp95.216
|
|
|
Rp89.895
|
|
|
View
|
|
|
Rp85.492
|
|
|
Rp82.557
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
2 kOhms
|
Top Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 500ohm 5/16" Rnd 4Turn Cermet
- 3339P-1-501
- Bourns
-
1:
Rp134.660
-
48In Stock
-
100Expected 14/08/2026
|
Mouser Part No
652-3339P-1-501
|
Bourns
|
Trimmer Resistors - Through Hole 500ohm 5/16" Rnd 4Turn Cermet
|
|
48In Stock
100Expected 14/08/2026
|
|
|
Rp134.660
|
|
|
Rp104.205
|
|
|
Rp98.335
|
|
|
Rp91.363
|
|
|
View
|
|
|
Rp87.327
|
|
|
Rp83.658
|
|
|
Rp81.273
|
|
|
Rp80.906
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
500 Ohms
|
Top Adjust
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 5K 5/16" Rnd 4Turn Cermet
- 3339P-1-502
- Bourns
-
1:
Rp123.102
-
56In Stock
|
Mouser Part No
652-3339P-1-502
|
Bourns
|
Trimmer Resistors - Through Hole 5K 5/16" Rnd 4Turn Cermet
|
|
56In Stock
|
|
|
Rp123.102
|
|
|
Rp122.918
|
|
|
Rp103.655
|
|
|
Rp71.366
|
|
|
View
|
|
|
Rp69.531
|
|
|
Rp67.697
|
|
|
Rp66.046
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
5 kOhms
|
Top Adjust
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 50K 5/16" Rnd 4Turn Cermet
- 3339P-1-503
- Bourns
-
1:
Rp134.660
-
79In Stock
|
Mouser Part No
652-3339P-1-503
|
Bourns
|
Trimmer Resistors - Through Hole 50K 5/16" Rnd 4Turn Cermet
|
|
79In Stock
|
|
|
Rp134.660
|
|
|
Rp104.205
|
|
|
Rp98.335
|
|
|
Rp92.831
|
|
|
View
|
|
|
Rp84.025
|
|
|
Rp78.888
|
|
|
Rp75.402
|
|
|
Rp75.035
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
50 kOhms
|
Top Adjust
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 1K 5/16" Rnd 4Turn Cermet
- 3339W-1-102
- Bourns
-
1:
Rp171.535
-
92In Stock
|
Mouser Part No
652-3339W-1-102
|
Bourns
|
Trimmer Resistors - Through Hole 1K 5/16" Rnd 4Turn Cermet
|
|
92In Stock
|
|
|
Rp171.535
|
|
|
Rp145.667
|
|
|
Rp120.900
|
|
|
Rp115.947
|
|
|
View
|
|
|
Rp111.911
|
|
|
Rp109.709
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
1 kOhms
|
Side Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
|
Horizontal Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 10K 5/16" Rnd 4Turn Cermet
- 3339W-1-103
- Bourns
-
1:
Rp92.647
-
49In Stock
|
Mouser Part No
652-3339W-1-103
|
Bourns
|
Trimmer Resistors - Through Hole 10K 5/16" Rnd 4Turn Cermet
|
|
49In Stock
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
10 kOhms
|
Side Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Horizontal Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 100ohm 5/16" Rnd 4Turn Cermet
- 3339H-1-101LF
- Bourns
-
1:
Rp92.647
-
80In Stock
|
Mouser Part No
652-3339H-1-101LF
|
Bourns
|
Trimmer Resistors - Through Hole 100ohm 5/16" Rnd 4Turn Cermet
|
|
80In Stock
|
|
|
Rp92.647
|
|
|
Rp71.733
|
|
|
Rp67.697
|
|
|
Rp63.844
|
|
|
View
|
|
|
Rp59.258
|
|
|
Rp55.955
|
|
|
Rp52.836
|
|
|
Rp51.736
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
100 Ohms
|
Top Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 2K 5/16" Rnd 4Turn Cermet
- 3339H-1-202LF
- Bourns
-
1:
Rp110.810
-
100Expected 20/08/2026
|
Mouser Part No
652-3339H-1-202LF
|
Bourns
|
Trimmer Resistors - Through Hole 2K 5/16" Rnd 4Turn Cermet
|
|
100Expected 20/08/2026
|
|
|
Rp110.810
|
|
|
Rp86.043
|
|
|
Rp67.697
|
|
|
Rp63.844
|
|
|
View
|
|
|
Rp59.258
|
|
|
Rp55.955
|
|
|
Rp52.836
|
|
|
Rp51.369
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
2 kOhms
|
Top Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 50ohm 5/16" Rnd 4Turn Cermet
- 3339P-1-500LF
- Bourns
-
1:
Rp92.647
-
99Expected 20/08/2026
|
Mouser Part No
652-3339P-1-500LF
|
Bourns
|
Trimmer Resistors - Through Hole 50ohm 5/16" Rnd 4Turn Cermet
|
|
99Expected 20/08/2026
|
|
|
Rp92.647
|
|
|
Rp71.733
|
|
|
Rp67.697
|
|
|
Rp63.844
|
|
|
View
|
|
|
Rp59.258
|
|
|
Rp55.955
|
|
|
Rp52.836
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
50 Ohms
|
Top Adjust
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 500K 5/16" Rnd 4Turn Cermet
- 3339P-1-504LF
- Bourns
-
1:
Rp92.647
-
90Expected 20/08/2026
|
Mouser Part No
652-3339P-1-504LF
|
Bourns
|
Trimmer Resistors - Through Hole 500K 5/16" Rnd 4Turn Cermet
|
|
90Expected 20/08/2026
|
|
|
Rp92.647
|
|
|
Rp71.733
|
|
|
Rp67.697
|
|
|
Rp61.643
|
|
|
View
|
|
|
Rp58.707
|
|
|
Rp55.955
|
|
|
Rp52.836
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
500 kOhms
|
Top Adjust
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 5K 5/16" Rnd 4Turn Cermet
- 3339W-1-502LF
- Bourns
-
1:
Rp129.339
-
50Expected 17/09/2026
|
Mouser Part No
652-3339W-1-502LF
|
Bourns
|
Trimmer Resistors - Through Hole 5K 5/16" Rnd 4Turn Cermet
|
|
50Expected 17/09/2026
|
|
|
Rp129.339
|
|
|
Rp99.986
|
|
|
Rp94.298
|
|
|
Rp87.510
|
|
|
View
|
|
|
Rp82.190
|
|
|
Rp76.870
|
|
|
Rp73.751
|
|
|
Quote
|
|
Min.: 1
Mult.: 1
|
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
5 kOhms
|
Side Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Horizontal Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 5K 5/16" Rnd 4Turn Cermet
- 3339H-1-502
- Bourns
-
1:
Rp164.013
-
95Expected 14/09/2026
|
Mouser Part No
652-3339H-1-502
|
Bourns
|
Trimmer Resistors - Through Hole 5K 5/16" Rnd 4Turn Cermet
|
|
95Expected 14/09/2026
|
|
|
Rp164.013
|
|
|
Rp132.091
|
|
|
Rp99.986
|
|
|
Rp89.345
|
|
|
View
|
|
|
Rp85.492
|
|
|
Rp81.640
|
|
|
Rp79.805
|
|
|
Rp79.438
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
5 kOhms
|
Top Cross
|
500 mW (1/2 W)
|
300 V
|
10 %
|
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
|
|
Trimmer Resistors - Through Hole 10K 5/16" Rnd 4Turn Cermet
- 3339P-1-103
- Bourns
-
1:
Rp134.660
-
90Expected 13/08/2026
|
Mouser Part No
652-3339P-1-103
|
Bourns
|
Trimmer Resistors - Through Hole 10K 5/16" Rnd 4Turn Cermet
|
|
90Expected 13/08/2026
|
|
|
Rp134.660
|
|
|
Rp104.205
|
|
|
Rp98.335
|
|
|
Rp90.446
|
|
|
View
|
|
|
Rp85.125
|
|
|
Rp79.989
|
|
|
Rp76.870
|
|
|
Rp76.686
|
|
Min.: 1
Mult.: 1
|
No
|
|
3339
|
Through Hole
|
Multiturn
|
4 Turn
|
10 kOhms
|
Top Adjust
|
500 mW (1/2 W)
|
300 V
|
10 %
|
100 PPM / C
|
Vertical Adjustment
|
- 55 C
|
+ 150 C
|
Tube
|
|
Indonesia