Series 280
®
Commercial
Miniature
16mm Diameter
Composition
Variable Resistors
• Miniature 16mm style
• Bushing mounted with PC terminals and
shaft parallel or perpendicular to PC board
• Single or multiple section units
• Compatible with CTS 288 series rotary
encoders
Available with:
• Molded or metal shafts
• Push Pull Switch
• Electrical taps
• Center detent
Electrical and Mechanical Specifications
Resistance Range
500 ohms through 5 megohms (linear taper).
Resistance Tolerance
Standard: ±20%
Special tolerances available
Power Rating, Watts
1
/
4
watt per section through 10K ohms
1
/
8
watt per section above 10K ohms
Full rating @ 55°C derated to no load at 85°C
for linear tapers (derating required on
multiple section controls).
Voltage Rating
Bushings to Terminals:
High pot test, one minute — 750 VAC
Operating maximum
— 500 VDC
Across End Terminals:
350 VDC, load not to exceed power rating.
Insulation Resistance
100 megohms minimum dry
Angle of Rotation
Total Rotation:
Without switch — 300° ± 5°
Effective Rotation:
Without switch — 300° (approximate)
Rotation Torque
0.5-4 inch-ounces (36-288 gcm)
Switch Rating
Push pull type: 50mA, 20VDC
Technical Data Sheet 1448C
Technical Data Sheet 1280A
CTS CORPORATION /
MANUFACTURER OF RELIABLE ELECTRONIC COMPONENTS
Ordering Information
280
TERMINAL STYLE
B
– XB STYLE
T
– SOLDERLUG
X
– PC (X STYLE)
V
– PC FORMED
TO REAR
Z
– ZV STYLE
X
2
20
R
SHAFT TRIM
103
B
RESIST TOL
A
– ±10%
B
– ±20%
C
– ±30%
1
1
SPECIALS
1
– NONE
2
– 50%
DETENT
*3
– PUSH-PULL
SWITCH
* Not available
with V or Z
terminal style
R
– ROUND
F
– FLATTED .250" X .156"
(6.35MM X 4.0MM)
K
– KNURLED EIA S148
S
– SD SLOT .047" WIDE
X .063" DEEP
(1.2MM X 1.6MM)
MOUNTING STYLE
BUSHING LENGTH:
1/8" (3.2MM) INCREMENTS
EXAMPLES:
M/M
A
– 5.0MM
B
– 6.35MM
C
– 7.0MM
D
– 9.53MM
ALL
M8 x .75P
INCH
2
– .250"
3
– .375"
8
– 1.000"
1
– .375"
LOCKING
ALL
3
/
8
-32 NEF
SHAFT LENGTH
FROM MOUNTING SURFACE
1/32" (0.8MM) INCREMENTS
EXAMPLES:
M/M
A0
– 10MM
A5
– 15MM
B0
– 20MM
B5
– 25MM
C0
– 30MM
C5
– 35MM
ALL 6MM
DIAMETER
ALL .250"
DIAMETER
INCH
20
– .625"
24
– .750"
28
– .875"
32
– 1.000"
RESISTANCE CODE
EXAMPLES
CODE
501
102
252
502
103
253
503
104
RESISTANCE
500 OHMS
1K
2.5K
5K
10K
25K
50K
100K
TAPER
1
– LINEAR
2
– 10% AUD
3
– 10% CCW AUD
Order From:
CTS CORPORATION, ELECTROCOMPONENTS
/ 1601 Mishawaka Street / Elkhart, Indiana 46514
North America Toll Free (888) 287-4690 / (219) 296-6700 / FAX: (219) 293-1240 http://www.ctscorp.com
CTS COMPONENTS TAIWAN, LTD.
/ 7, Central 6th Road (Chung Liu Road) / P.O. Box 26-20
Kaohsiung Export Processing Zone / Kaohsiung, Taiwan, Rep. of China
(07) 8216145 / FAX: (07) 8417642.8110040
2.5M - 6 - 99I
PCB Design
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