Part name Material Flammability
1
2
3
4
5
6
7
8
9
!0
!1
Wiper
Adhesive
“O” ring
Rubber cushion
Cover
Terminal pin
Base element
Base
Resistive element
Rotor
Electrode
RJ-4
SINGLE TURN CERMET TRIMMERS
● RoHS compliant
● Compact with power rating of 0.5 W
● Precious metal alloy wiper
■
FEATURES PBT
Polybutyleneterephthalate
PBT
Polybutyleneterephthalate
Epoxy
Silicone rubber
Silicone rubber
Stainless steel
UL-94HB
Ceramic
—
—
Ag-Pd cermet
RuO2cermet
UL-94V-0
Multi metal alloy
INTERNAL STRUCTURE
■
PART NUMBER DESIGNATION
※Please refer to the LIST OF PART NUMBERS when placing orders.
R J - 4 E W S 2 k Ω( 2 0 2 )
Series name
Product shape
W
：
Top adjustment
WS
：
Side adjustment
Terminal pin
E：Sn (Lead-free)
Resistance code
Resistance value
!0
9
8
2
1
3
4
5
6
7
!1
Copper alloy, Tin-plated
RoHS compliant
ɷ Specifications are subject to chan
g
e without notice.
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELEC
T
R
O
NIC
S
Test item Test conditions Specifications
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
Soldering heat
Mechanical angle
Operating torque
Stop strength
Rotational life
Thrust to rotor
Solderability
Terminal strength
Nominal resistance range
Resistance tolerance
Power ratings
Resistance law
Maximum input voltage
Maximum wiper current
Effective electrical angle
End resistance
C.R.V.
Operating temp. range
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
Adjustment
position
Top adjustment
Side adjustment
Pieces in
package
Form of packaging
Plastic bag
※The above part numbers are all available with the respective combination of
<Nominal resistance values> (Fig. 1).
※Verify the above part numbers when placing orders.
■
LIST OF PART NUMBERS
RJ-4EW
RJ-4EWS
50 pcs./pack
〈
Nominal resistance values
〉
A10 ΩA20 Ω50 Ω100 Ω200 Ω500 Ω1 kΩ2 kΩ5 kΩ
10 kΩ20 kΩ50 kΩ100 kΩ200 kΩ500 kΩ1 MΩ2 MΩ
Δ
R/R：Change in total resistance
S.S. ：Setting stability
■
ELECTRICAL CHARACTERISTICS
■
MECHANICAL CHARACTERISTICS
10 Ω~ 2 MΩ
±10 %
0.5 W (70 °C) 0 W (120 °C)
Linear law
DC200 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
200 ° (1 turn)
1 % or 2 Ω, whichever is greater
1 % or 3 Ω, whichever is greater
−55 ~ 120 °C
10 Ω ~ 50 Ω:±250 10-6/°C maximum
100 Ω ~ 2 MΩ:±100 10-6/°C maximum
1000 MΩminimum (DC500 V)
AC500 V, 60 s
Approx. 0.26 g (RJ-4EW)
Approx. 0.35 g (RJ-4EWS)
230 ° (1 turn)
15 mN·m {153 gf·cm} maximum
45 mN·m {459 gf·cm} minimum
200 cycles
10 Ω~ 200 Ω[
Δ
R/R ≦±(0.5 Ω+3 %)]
500 Ω~ 2 MΩ[
Δ
R/R ≦±(0.5 Ω+2 %)]
10 N {1.02 kgf} minimum
245 ±3 °C, 2 ~ 3 s
10 N {1.02 kgf} minimum
（Tensile strength）
■
ENVIRONMENTAL CHARACTERISTICS
−65 ~ 125 °C (0.5 h),
5 cycles
[
Δ
R/R ≦1 %]
[S.S. ≦1 %]
−10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
[
Δ
R/R ≦1 %]
981 m/s2, 6 ms
6 directions for 3 times each [
Δ
R/R ≦1 %]
[S.S. ≦1 %]
Amplitude 1.52 mm or
Acceleration 196 m/s2,
10 ~ 2000 Hz, 3 directions, 12 times each
70 °C, 0.5 W
1000 h
[
Δ
R/R ≦3 %]
[S.S. ≦1 %]
−55 °C, 2 h [
Δ
R/R ≦2 %]
[S.S. ≦2 %]
120 °C, 250 h [
Δ
R/R ≦3 %]
[S.S. ≦2 %]
85 °C, 60 s
No leaks (No continuous bubbles)
Flow：
260± 3°C、5~6s,twotimes
Manual soldering：
380 ±10 °C, 3 ~ 4 s
[
Δ
R/R ≦1 %]
Fig. 1
The products indicated by A mark are manufactured upon receipt of
order basis.
RJ-4
CERMET TRIMMERS
{ }
：
Reference only
