PSC-15

15-mm cermet SMD potentiometer

The PSC-15 cermet potentiometers offer control where frequent adjustment is required. The shaftless design allows for employment of different engagement mechanisms, such as a customized shaft, a motor control or a human interface adjustment.

■ Excellent performance (up to 3% linearity)
■ Cermet resistive element
■ Up to 38 mechanical detents for tactile feedback
■ IP54 protection
■ Embossed tape packaging according to IEC 60286-3:2007
■ Wiper positioned at initial, 50% or fully clockwise
■ Linear, logarithmic and antilogarithmic tapers (PSC-15)
■ Self extinguishable plastic (UL 94V-0)
■ Locating pins for accurate PCB positioning
■ Low torque version available
■ Shaft and knobs
■ Controlled linearity up to 3% on request

KEY FEATURES

SPECIFICATIONS

Taper¹	Lin, Log, Alog
Range of values¹	Lin - 100Ω ≤ Rn ≤ 5MΩ Log, Alog - 1KΩ ≤ Rn ≤ 5MΩ
Tolerance¹	100Ω ≤ Rn ≤ 1MΩ - ± 20% 1MΩ < Rn ≤ 5MΩ - ± 30%
Max. Voltage	Lin - 250 Vdc Log, Alog - 125 Vdc
Nominal power	70°C (158°F) Lin - 0.50 W Log, Alog - 0.25 W
Residual resistance¹	≤ 0.5% Rn (5Ω min.)
Equivalent noise resistance	≤ 3% Rn (3Ω min.)
Operating temperature1	-40°C to +90°C (-40°F to +194°F)

1 Others available on request

Mechanical rotation angle¹	265° ± 5°
Electrical rotation angle²	240° ± 20°
Torque	Rotational - 0.5 to 2.5 Ncm (0.7 to 3.4 in-oz) Stop > 10 Ncm (>14 in-oz)
Life²	Up to 10k cycles

1 Endless rotation available: STS-15 2 Others check availability

	Test method (CEI 393-1)	ΔR(%) - typical test results
Electrical life	1.000h at 50°C; 0.15W 1.000h at 70°C; 0.33W	n/a ±5%
Mechanical life	1000 cycles at 10 to 15 cpm	±3% (Rn < 1 M)
Temperature coefficient	-40°C; +90°C -40°C; +85°C -25°C; +70°C	±100 ppm/°C (Rn < 100K) n/a n/a
Thermal cycling	16h at 90°C and 2h at -40°C	±2.5%
Damp heat	500h at 40°C and 95% relative humidity (RH)	±5%
Vibration	2h each plane at 10Hz - 55Hz	±2%
Storage	6 month at 23°C ±2°C and 50% RH	±5%