RoHS
POWER RESISTORS
ü
(M)SQ(H, M, P T, U, Z) Series: Cement Box
,
INTRODUCTION
Cement-Box type resistors offer a choice of resistive
elements inside a white flameproof cement box. In
addition to being flameproof, these resistors are also
non-corrosive and humidity proof. The available
resistive elements are:
SQ
MSQ
NSQ
GSQ
- Standard wire wound (all welded construction)
- Metal oxide core
(low inductance, high resistance)
- Non-Inductively wound
(Ayrton-Perry Method, all welded construction)
- Fiber Glass Core
CHARACTERISTICS
Test Items
Wirewound
Resistance
Temp. Coeff.
Metal Oxide
Resistance
Temp. Coeff.
Moisture Load
Life Cycle Test
Standard
Tolerance
Maximum
Working Voltage*
Dielectric
Insulation
Resistance
Short Term
Overload
Load Life
Humidity
-50
0
50
100
150
200
Ambient Temperature ( C)
250
300
Spec.
Typical
<1
¿
= 300ppm
>1
¿
= 200ppm
Typical
+200ppm/
°
C
+3%
J = +5%, K = +10%
500V
750V
1000V
+2% + 0.05
>10 M
¿
+(2% + 0.05
¿
)
+(5% + 0.05
¿
)
2
Condition
JIS.C.5202.2.5.2
-55
°
C ~ +200
°
C
40
°
C 95
°
@ RH
1,000hrs
-25
°
C
2W, 3W, 5W, 7W
10W
15W, 20W, 25W
1000V, 1 min
500Vdc, 1 min
1000V, 1 min
PART NUMBER EXAMPLE
MSQM 5W - 47K - J
TEMPERATURE RISE
250
200
150
100
50
0
0
20
40
60
80
100 120
100
DERATING CURVE
25 C
70 C
155 C
2 ~ 10W
275 C
80
60
40
20
0
15 & 20W
20W
15W
10W
7W
5W
2 & 3W
Load Factor (%)
SPECIFICATIONS
Series
Solderability
Resistance to
Solder Heat
70
°
C for 1000 hours
40
°
C, 90% RH,
+5% + 0.05
¿
1000 hours
95% coverage min.
230
°
C, 5 sec.
+(2% + 0.05
¿
)
260
°
C, 10 sec.
*Maximum Voltage per value to be determined by Ohms Law but not to exceed noted voltage.
Resistance Range
SQ_
MSQ_
P (SQH Series)
W
H
L
Dd
0.01 - 75 1.0 - 33K
SQP1W
6±1
6±1
14±1
0.6±0.05
SQP2W
7±1
7±1
18±1.5 0.65±0.05
0.01 - 100 1.0 - 33K
SQP3W
8±1
8±1
22±1.5 0.8±0.05
0.01 - 300 1.0 - 100K
5±1
SQP5W
10±1
9±1
22±1.5 0.8±0.05
0.01 - 300 1.0 - 100K
10±1
SQP7W
10±1
9±1
35±1.5 0.8±0.05
0.1 - 600 1.0 - 100K
10±1
SQP10W
10±1
9±1
48±1.5 0.8±0.05
0.1 - 1.2K 1.0 - 100K
SQP15W
12.5±1
11.5±1
48±1.5 0.8±0.05
0.5 - 1.5K
SQP20W
14±1
13.5±1
60±1.5 0.8±0.05
0.5 - 1.5K
SQP25W
14±1
13.5±1
60±1.5 0.8±0.05
0.5 - 1.5K
W
H
L
T
SQ_
MSQ_
SQT5W
10±1
9±1
22±1.5
1.5±0.5
0.1 - 600 1.0 - 100K
SQT7W
10±1
9±1
35±1.5
3.0±0.5
0.1 - 1.2K 1.0 - 100K
SQT10W
10±1
9±1
48±1.5
3.0±0.5
0.5 - 1.5K
SQ_
MSQ_
W
H
T
P
SQM2W
11± 1
20.5±1.5
7±1
5
0.01 -100 1.0 -33K
SQM3W
11± 1
20.5±1.5
7±1
5
0.01 -100 1.0 - 33K
SQM5W
13±1
25±1.5
9±1
5
0.01 - 300 1.0 - 100K
SQM7W
13±1
39±1.5
9±1
5
0.1 - 500 1.0 - 100K
SQM10W
13±1
51±1.5
9±1
5
0.1 - 600 1.0 - 75K
SQMX10W
16±1
35±1.5
12±1
7.5
0.1 - 360 1.0 - 100K
SQMX12.5W
16±1
35±1.5
12±1
7.5
0.1 - 600
SQ_
MSQ_
W
H
L
P
H1
P1
P2
SQZ5W
10±1
10±1
27±1.5
15±1 10.5±1
4.5~7.5
1.6±0.2
0.01 - 300 1.0 - 50K
SQZ7W
10±1
10±1
35±1.5
20±1 10.5±1 7±1
1.6±0.2
0.1 - 600 1.0 - 50K
SQZ10W
10±1
12±1
48±1.5
32±1 10.5±1 7±1
1.6±0.2
0.1 - 600 1.0 - 50K
SQZ15W
12±1
12±1
48±1.5
32±1
15±1 10±1 3±0.2 0.1 - 1K
SQZ20W
12±1
12±1
62±1.5
42±1
15±1 10±1 3±0.2 0.1 - 1K
15±1 10±1 3±0.2 0.1 - 1K
SQZ25W
12±1
12±1
62±1.5
42±1
SQH
5W to 10W specifications are the same as SQP5W to 10W
SQ_
MSQ_
H1
T Diagram
W
H
L
P
SQU10W
10 ±1
9 ±1
48 ±1
35 ±1
18 ±1 0.4
A
0.1- 270 271- 50K
SQU15W
12.5 ±1 11.5 ±1
48 ±1
32 ±1
21 ±1 0.4
A
1- 470 471- 150K
SQU20W
12.5 ±1 13.5 ±1
63 ±1
44 ±1
21 ±1 0.4
A
1- 560 561- 150K
SQU30W
75 ±1
55 ±1
32 ±1 0.8
B
1- 820 821- 150K
19 ±1
19 ±1
SQU40W
90 ±1
70 ±1
32 ±1 0.8
B
1- 1K 1.1K- 150K
19 ±1
19 ±1
SQP
d
H
35±3
L
W
SQT
35±3
L
t
W
0.8±0.05
H
T
SQM
W
H
4.0
min
P±1
0.8±0.05
0.4
P
SQZ
P1
P2
4.5
H1
H
L
SQH
W
L
P
10.5
±0.05
4±0.5
W
H
Termination
10.5
±0.05
5
±3
SQU
T
P
6.2
±0.
1
2.4f
6.4
±0.
1
1.65f
H
L
W
Diagram A
H1
H
H1
W
Diagram B
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