Bourns
Multi- and Single-Turn Wirewound and Cermet Trimmers
Visit BournsÕ Website at www.bourns.com
Model RT24/3290 Multi-Turn Wirewound
This 3/8" square wirewound potentiometer is listed on DESC QPL for style RT24 per MIL-R-27208 and RTR24 per High-Rel MIL-R-39015. High Performance: 1 watt
@ +85¡C. Temperature Range: Ð65¡C +150¡C. All plastic case provides sealing against liquids and potting compounds. Resistance Tolerance: ±5%. Dielectric
Strength: 1000 VAC @ sea level. Moisture resistance. Mechanical Life: 200 cycles. Solder PC pin terminals. Commercial part numbers of the 3290 series available
at higher pricing. Other resistance values available. Call for pricing.
EACH
Stock
No.*
Mfr.Õs
Type
1-9
10-24
5.80
25-49
5.43
50-99
5.07
100-249
4.81
754-08XX
RT24/3290W-1-
6.63
*Using ohm chart below, replace ÒXXÓ in Stock No. with numbers that correspond with desired ohm value.
Resolution
Percent
Resolution
Percent
Ohms
XX
Ohms
XX
1K
05
0.33
10K
08
0.26
Model 3339 Multi-Turn Cermet
Model 3362 Single-Turn Cermet
This 1/4" square trimming potentiometer is ideal for industrial applications. It is sealed to withstand harsh environments
and immersion cleaning processes. The rotor is designed for automatic machine adjustment interface. The miniature
package saves space on the circuit board. Resistance Tolerance: ±10%. Rated: 0.5 watt @ 70¡C. Temperature Range:
Ð55¡C to +125¡C. Temperature Coefficient: ±100 ppm/¡C. Mechanical Angle: 270¡. Terminals are solderable pins.
Rotational Life: 200 cycles.
Top Adjust
Unique planetary drive offers precise wiper setting in a single turn size package. Space-saving 0.30" dia. ´ 0.25" H. Rated
0.5 watt @ 85¡C. Sealed to withstand wave soldering and immersion cleaning process. Temperature Range: Ð55¡C to
+150¡C. Temperature Coefficient: ±100 ppm/¡C max. Resistance Tolerance: ±10%.
EACH
Stock
No.
Mfr.Õs
Type
1-9
10-24
25-49
50-99
100-249
754-122X
754-123X
754-124X
3362H-1-
3362P-1-
3362U-1-
1.06
1.06
1.06
.92
.92
.92
.85.77
.85.77
.85.77
.69
.69
.69
EACH
Stock
No.*
Mfr.Õs
Type
1-9
10-24
25-49
50-99
100-249
754-72XX
754-73XX
754-74XX
3339H
3339P
3339W
4.54
4.54
6.48
3.98
3.98
5.66
3.71
3.71
5.30
3.47
3.47
4.94
3.29
3.29
4.69
Side Adjust
11
754-125X
754-126X
754-127X
3362M-1-
3362S-1-
3362W-1-
1.06
1.06
1.06
.92
.92
.92
.85.77
.85.77
.85.77
.69
.69
.69
100 ½ to 200 K only. *Using ohm chart below, replace ÒXXÓ in Stock No. with numbers that correspond with desired
ohm value.
Ohms
XX
Ohms
XX
Ohms
XX
Ohms
XX
Ohms
X
Ohms
X
Ohms
X
Ohms
X
100
200
500
01
02
03
1K
2K
5K
04
05
06
10K
50K
100K
07
09
10
200K
1Meg
Ñ
11
13
Ñ
100
500
1K
0
1
2
2K
5K
10K
3
4
5
20K
25K
50K
6
7
8
100K
Ñ
Ñ
9
Ñ
Ñ
Model 3329 Single-Turn Cermet
Model 3352 Single-Turn Cermet
Listed on DESC QPL for style RJ50 per MIL-R-22097 and RJR50 per High-Rel MIL-R-39035. Infinite resolution cermet
element. Space saving 0.25" dia. Low temperature coefficient ±100 ppm/¡C max. Power Rating: 0.5 watt @ 85¡C.
Temperature Range: Ð55¡C to +150¡C. Resistance Tolerance: ±10%.
Adjustability of ±0.05% voltage ratio. Low temperature coefficient of ±100 ppm/¡C. Power Ratio: 0.50 watt @ 85¡C.
Temperature Range: Ð55¡C to +125¡C. Stable cermet element offers infinite resolution. Resistance Tolerance: ±20%.
Side Adjust
Top Adjust
Stock
EACH
25-49
EACH
Stock
No.*
Mfr.Õs
Type
Stock
Mfr.Õs
Type
Mfr.Õs
Type
1-9
10-24
50-99
100-249
1-9
10-24
25-49
50-99
100-249
No.*
No.*
754-77XX
754-78XX
754-79XX
3329H-1-
3329P-1-
3329W-1-
2.34
2.34
2.34
2.01
2.01
2.01
1.89
1.89
1.89
1.77
1.77
1.77
1.67
1.67
1.67
754-80XX
754-82XX
3352W
3352H
754-81XX
754-83XX
3352T
3352P
1.03
1.03
.91
.91
.85.80
.85.80
.77
.77
*Using ohm chart below, replace ÒXXÓ in Stock No. with numbers that correspond with desired ohm value.
*Using ohm chart below, replace ÒXXÓ in Stock No. with numbers that correspond with desired ohm value.
Ohms
XX
Ohms
XX
Ohms
XX
Ohms
XX
Ohms
XX
Ohms
XX
Ohms
XX
Ohms
XX
Ohms
XX
50
100
200
500
01
02
03
04
1K
2K
5K
05
06
07
08
20K
25K
50K
09
10
11
12
200K
500K
1Meg
2Meg
13
14
15
16
50
100
200
03
04
05
500
1K
2K
06
07
08
5K
10K
20K
09
10
11
50K
100K
200K
12
13
14
500K
1Meg
Ñ
15
16
Ñ
10K
100K
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