ST2TA203 Copal Electronics Inc, ST2TA203 Datasheet - Page 3

• Manufacturer Part Number: ST2TA203
• Description: POT 20K OHM 2MM CERM SQ S/T SMD
• Manufacturer: Copal Electronics Inc
• Series: ST2r

Specifications of ST2TA203

• Resistance (ohms): 20K
• Power (watts): 0.1W, 1/10W
• Taper: Linear
• Tolerance: ±20%
• Temperature Coefficient: ±150ppm/°C
• Number Of Turns: Single
• Adjustment Type: Top Adjustment
• Mounting Type: Surface Mount
• Resistive Material: Cermet
• Package / Case: Square - 0.110" L x 0.094" W x 0.067" H (2.80mm x 2.40mm x 1.70mm)
• Resistance In Ohms: 20.0K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ST-2TA203; ST2TA203TR

■
Reflow profile for soldering heat evaluation
■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
Soldering heat
Test item
ENVIRONMENTAL CHARACTERISTICS
250
200
150
100
( C)
50
180 C
150 C
10 ~ 2000 Hz, 3 directions, 12 times each
Reflow Peak temperature : 255 °C
(Please refer to the profile below)
Flow soldering
260 3 °C, 5 ~ 6 s, two times
maximum
Manual soldering
6 directions for 3 times each
Amplitude 1.52 mm or
10 ~ 65 °C (80 ~ 98 %),
Acceleration 196 m/s
(0.5 h), 5 cycles
Test conditions
981 m/s
10 cycles, 240 h
125 °C, 250 h
70 °C, 0.1 W
85 °C, 60 s
65 ~ 125 °C
55 °C, 2 h
350 10 °C, 3 ~ 4 s
1000 h
Pre Heating Zone
：
Peak : 250
Heating time
Reflow : two times maximum
2
：
, 6 ms
Over 230 C
90 30 s
30 10 s
Δ R/R：Change in total resistance
S.S. ：Setting stability
2
,
+5
0
C
Soldering Zone
No leaks (No continuous bubbles)
[ Δ R/R ≦ 1 %]
[ Δ R/R ≦ 2 %]
[ Δ R/R ≦ 2 %]
[ Δ R/R ≦ 2 %]
[ Δ R/R ≦ 3 %]
[ Δ R/R ≦ 2 %]
[ Δ R/R ≦ 3 %]
Specifications
[S.S. ≦ 2 %]
[S.S. ≦ 1 %]
[S.S. ≦ 1 %]
[S.S. ≦ 2 %]
[S.S. ≦ 2 %]
〉
■
■
Nominal resistance
values ( )
MAXIMUM INPUT RATINGS
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS
100 k
200 k
500 k
10 k
20 k
50 k
100
200
500
1 M
1 k
2 k
5 k
SURFACE MOUNT TRIMMERS
0.65
Resistance code
COPAL ELECTRONICS
101
201
501
102
202
502
103
203
503
104
204
504
105
Note) The zero point is the center of mounting.
0.6
1
0
Maximum input
voltage (V)
3.16
4.47
7.07
10.0
14.1
22.3
31.6
44.7
50.0
50.0
50.0
50.0
50.0
0.65
Maximum wiper
current (mA)
ST-2
31.6
22.4
14.1
10.0
0.25
0.05
7.1
4.5
3.2
2.2
1.0
0.5
0.1
(Unit : mm)