SM4ETW105 Copal Electronics Inc, SM4ETW105 Datasheet - Page 2

• Manufacturer Part Number: SM4ETW105
• Description: POT 1.0M OHM 4MM CERMET TOP SMD
• Manufacturer: Copal Electronics Inc
• Series: SM4r

Specifications of SM4ETW105

• Resistance (ohms): 1M
• Power (watts): 0.25W, 1/4W
• Taper: Linear
• Tolerance: ±10%
• Temperature Coefficient: ±100ppm/°C
• Number Of Turns: 12
• Adjustment Type: Top Adjustment
• Mounting Type: Surface Mount
• Resistive Material: Cermet
• Package / Case: Square - 0.193" L x 0.146" W x 0.177" H (4.90mm x 3.70mm x 4.50mm)
• Resistance In Ohms: 1.00M
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SM-4ETW105; SM4ETW105TR

■ LIST OF PART NUMBERS
■ ELECTRICAL CHARACTERISTICS
<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.
Top adjustment
Side adjustment
Pieces in package
Nominal resistance range
Resistance tolerance
Power ratings
Resistance law
Maximum input voltage
Maximum wiper current
Effective electrical turn
End resistance
C.R.V.
Operating temp. range
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
Adjustment
position
250
200
150
100
(°C)
50
Shape of terminal
W (J-hook)
A (J-hook)
B (Gull wing)
180 °C
150 °C
Pre Heating Zone
Reflow : two times maximum
Peak : 250
DC300 V or power rating, whichever is smaller
Heating time
100 mA or power rating, whichever is smaller
Over 230 °C
90 ± 30 s
ETW : 250 pcs./reel
ETA : 500 pcs./reel
ETB : 500 pcs./reel
1 % or 2 Ω, whichever is greater
1 % or 3 Ω, whichever is greater
Sn-Cu (Lead-free)
1000 MΩ minimum (DC500 V)
0.25 W (85 °C) 0 W (150 °C)
SM-4ETW
SM-4ETA
SM-4ETB
Taping (reel)
30 ± 10 s
± 100 10
+5
0
Form of packaging
AC600 V, 60 s
°C
−65 ~ 150 °C
Approx. 0.2 g
10 Ω ~ 2 MΩ
Linear law
10 turns
± 10 %
Soldering Zone
-6
/°C maximum
Sn-Cu (Lead-free)
50 pcs./pack
Plastic bag
SM-4EW
SM-4EA
SM-4EB
<Nominal resistance values>
The products indicated by A mark are manufactured upon receipt of order basis.
❈ The above part numbers are all available with the respective combination of
❈ Verify the above part numbers when placing orders.
❈ Taping specification is not sold separately and must be purchased in reel units.
■ MECHANICAL CHARACTERISTICS
■ ENVIRONMENTAL CHARACTERISTICS
A
Mechanical turn
Operating torque
Mechanical stop
Rotational life
Thrust to shaft
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
Soldering heat
10 kΩ 20 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ
<Nominal resistance values> (Fig. 1).
10 Ω
Test item
A
20 Ω 50 Ω
SURFACE MOUNT TRIMMERS
Flow : 260 ± 3 °C as the temperature in
a pot of molten solder, immersion from
head of terminal to backside of board,
5 ~ 6 s, two times maximum
Reflow : Peak temperature 255 °C
(Please refer to the profile below.)
Manual soldering : 350 ± 10 °C, 3 ~ 4 s
10 ~ 2000 Hz, 3 directions, 12 times each
−65 ~ 150 °C (0.5 h), 5 cycles
6 directions for 3 times each
100 Ω 200 Ω 500 Ω
−10 ~ 65 °C (80 ~ 98 %),
85 °C, 0.25 W, 1000 h
COPAL ELECTRONICS
Amplitude 1.52 mm or
Acceleration 196 m/s
Test conditions
981 m/s
10 cycles, 240 h
150 °C, 250 h
−65 °C, 2 h
85 °C, 60 s
Width 90 mm, bend 3 mm, 5 s, 1 time
200 cycles [ ∆ R/R ≦ ± (3 Ω +3 %)]
2
, 6 ms
20 mN·m {204 gf·cm} maximum
5 N {0.51 kgf} minimum
2
245 ± 3 °C, 2 ~ 3 s
5 N {0.51 kgf} 10 s
5 N {0.51 kgf} 10 s
,
1 kΩ
∆ R/R : Change in total resistance
S.S. : Setting stability
Clutch action
12 turns
2 MΩ
2 kΩ
No leaks (No continuous bubbles)
[ ∆ R/R ≦ 2 %]
[ ∆ R/R ≦ 2 %]
[ ∆ R/R ≦ 1 %]
[ ∆ R/R ≦ 2 %]
[ ∆ R/R ≦ 1 %]
[ ∆ R/R ≦ 2 %]
[ ∆ R/R ≦ 1 %]
Specifications
{ } : Reference only
[S.S. ≦ 1 %]
[S.S. ≦ 1 %]
[S.S. ≦ 1 %]
[S.S. ≦ 1 %]
[S.S. ≦ 1 %]
5 kΩ
SM-4
Fig. 1
2007
Jan,