Data Sheet

www.acptechnologies.com Specifications on this catalog are for reference only, as they are subject to change without notice.
84
Electric
Specifications
These are standard features; other specifications and out of range values can be studied on request.
* Out of range ohm values and tolerances are available on request, please, inquire.
** Dissipation of special tapers will vary, please, inquire.
Variation laws
Residual resistance
MCE14 Through-holeMCA14 Through-hole
Range of resistance values*
Lin (A)
Log (B) Antilog (C)
100Ω ≤ Rn ≤ 5MΩ
1 KΩ ≤ Rn ≤ 2M2Ω
100Ω ≤ Rn ≤ 5MΩ
1 KΩ ≤ Rn ≤ 2M2Ω
Tolerance*
Rn < 100Ω:
100Ω ≤ Rn ≤ 100KΩ
100K< Rn ≤ 1MΩ:
1MΩ < Rn ≤5MΩ:
Rn > 5MΩ:
+50%, -30% (out of range)
±20%
±20%
±30%
+50%, -30% (out of range)
-
±20%
±20%
±30%
-
Lin (A), Log (B), Antilog (C). Other tapers available on request
Lin (A), Log (B), Antilog (C) ≤ 5*10-3*Rn. Minimum value 2Ω
≤2Ω
CRV - Contact Resistance
Variation (dynamic)
CRV - Contact Resistance
Variation (static)
Lin (A) Electrical Angle 245º±20º ≤ 3%Rn.
Other tapers, please inquire
Lin (A) Electrical Angle 245º±20º ≤ 5%Rn.
Other tapers, please inquire
Maximum power dissipation**
Lin (A)
Log (B), Antilog (C)
at 50ºC
0.25W
0.13W
at 70ºC.
0.7W
0.30W
Maximum voltage
Lin (A)
Log (B), Antilog (C)
250VDC
200VDC
Operating temperature -25ºC … +70ºC (+85ºC on request) -40ºC … +90ºC (+125ºC on request)
Temperature coefficient
100Ω ≤ Rn ≤ 10KΩ
10KΩ < Rn ≤ 5MΩ
+200/ -300 ppm
+200/ -500 ppm
±100 ppm
±100 ppm
Mechanical
Specifications
MCE14 Through-holeMCA14 Through-hole
Resistive element
Carbon technology
Cermet
Angle of rotation (mechanical)
265º ± 5º
Angle of rotation (electrical)
Wiper standard delivery position
Max. stop torque
Max. push/pull on rotor
245º ± 20º
50% ± 15º
10 Ncm
50 N
Wiper torque*
Mechanical life
<2.5 Ncm
Potentiometers with detents: <3.5 Ncm
1.000 cycles (many more available on request, please, inquire)
* Stronger or softer torque feeling is available on request.
MCE14 Through-holeMCA14 Through-hole
Test
results
The following typical test results (with 95% confidence) are given at 23ºC ±2ºC and 50% ±25% RH.
Thermal cycles
Load life
Mechanical life
Soldering effect
Storage (3 years)
16 h at 85ºC, plus 2 h at –25ºC ±2.5% 16 h at 90ºC, plus 2 h at –40ºC ±2%
1.000 h. at 50°C +0%; -5% 1.000 h. at 70°C
1.000 cycles at 10 c.p.m.
and at 23°C ± 2°C
±3%
1.000 cycles at 10 c.p.m.
and at 23°C ± 2°C
±2%
2 seconds at 350°C ±1% 2 seconds at 350°C ±1%
3 years at 23°C ± 2°C ±3% 3 years at 23°C ± 2°C ±1%
Test conditions
Typical variation of Rn
Typical variation of Rn Test conditions
Damp heat
500 h. at 40°C and 95% RH +5%, -2% 500 h. at 40°C and 95% RH ±2%
±2%