CEMENT FIXED RESISTOR
Self extinguishing
Excellent flame and moisture resistance
Extremely small sturdy and mechanically safe
Non-inductive types available for all Royal Ohm Cement Types
Too low or too high ohmic values on Wire-wound & Power Film type can be supplied on a case to
case basis
Ordering Procedure: (Ex.: PRW 5W, 5%, 100 , B/B)
P
R
W
0
5
W
J
P
1
0
1
B
0
0
Resistor Type:
PRW0 = PRW; PRWA = PRWA;
PRWC = PRWC; PRM0 = PRM;
PRMA = PRMA; PRMB = PRMB;
PRS0 = PRS;
PRVA = PRVA;
PRVB = PRVB; PZ1A = PRZA-1;
PZ2A = PRZA-2; PZ3A = PRZA-3;
PRZC = PRZC; PRZD = PRZD;
PRT0 = PRT;
PRU0=PRU;
Wattage:
2W = 2W
3W = 3W
5W = 5W
7W = 7W
AW = 10W
FW = 15W
20 = 20W
25 = 25W
30 = 30W
40 = 40W
Resistance Value:
E-24 series: the 1
st
digit to denote
production type of the product:
W=Wire wound type
P=Power film type
The 2
nd
& 3
rd
digits are for the
significant figures of the resistance
and the 4
th
digit denotes number of
zeros following.
Decimal point is expressed by:
“J”- 0.1, “K”- 0.01, “L”- 0.001
Ex.
4 7 ~ W47J
Tolerance:
J = ±5%,
K = ±10%
Packing Type:
B =Bulk / Box
Packing Qty:
0 = for Bulk / Box
packing
Special Feature:
Temperature coefficient
Short-time overload
Dielectric withstanding voltage
Terminal strength
Solderability
Temperature cycling
Humidity (Steady State)
Load life in humidity
< 20 : ±400PPM/°C;
R/R
20 : ±350PPM/°C
0 = Standard product
I = Non-Inductive
±(5.0% + 0.05 ), with no evidence of mechanical damage.
No evidence of flashover, mechanical damage, arcing or insulation breakdown.
No evidence of mechanical damage.
Min. 95% coverage
R/R
R/R
±(2.0% + 0.05 ), with no evidence of mechanical damage.
±(5.0% + 0.05 ), with no evidence of mechanical damage.
For Wire-wound range, the R/R is ±5%
For Power film range, <100K , the R/R is ±5%
For Power film range, 100K , the R/R is ±10%
Load life
For Wire-wound range, the R/R is ±5%
For Power film range, <100K , the R/R is ±5%
For Power film range, 100K , the R/R is ±10%
Resistance to soldering heat
R/R ±(1.0% + 0.05 ), with no evidence of mechanical damage.
* For complete details, please see Page 69.
2005 - 2006
Page 31
CEMENT FIXED RESISTOR
Dimension (mm)
Part No.
Style
+0.02
Resistance Range
H±5
Wire-
wound
0.1 ~ 27
0.1 ~ 39
0.1 ~ 47
0.1 ~ 680
0.1 ~ 910
1 ~ 1K
2 ~ 1.2K
2 ~ 1.2K
W±1 D±1 L±1 d
- 0.05
7
8
10
10
10
12.5
14.5
14.5
7
8
9
9
9
11.5
13.5
13.5
18
22
22
35
49
49
60
64
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
Power Film
28 ~ 33K
40 ~ 56K
48 ~ 100K
681 ~ 200K
911 ~ 200K
PRW02W
PRW – 2W
PRW – 3W
PRW – 5W
PRW – 7W
PRW – 10W
PRW – 15W
PRW – 20W
PRW – 25W
28
32
35
35
35
35
35
35
(1) PRW Type
PRW03W
PRW05W
PRW07W
PRW0AW
PRW0FW
PRW020
PRW025
Dimension (mm)
Resistance Range
H±5
Wire-
wound
0.1 ~ 27
0.1 ~ 47
0.1 ~ 680
0.1 ~ 910
(1-1) PRWA Type
Part No.
Style
+0.02
W±1 D±1 L±1 d
- 0.05
7
10
10
10
7
9
9
9
18
22
35
49
0.8
0.8
0.8
0.8
Power Film
28 ~ 33K
48 ~ 100K
681 ~ 200K
911 ~ 200K
PRWA2W
PRWA5W
PRWA7W
PRWAAW
PRWA - 2W
PRWA - 5W
PRWA - 7W
PRWA -10W
28
35
35
35
(1-2) PRWC Type
Part No.
Style
Dimension (mm)
+0.02
Resistance Range
H±5
Wire-
wound
1 ~ 27
1 ~ 200
1 ~ 200
W±1 D±1 L±1 d
- 0.05
6
6
9
6
6
9
20
25
25
0.8
0.8
0.8
Power Film
28 ~ 33K
201 ~ 100K
201 ~ 100K
PRWC3W
PRWC5W
PRWC7W
PRWC - 3W
PRWC - 5W
PRWC - 7W
28
35
35
Derating Curve
Heat Rise Chart
Page 32
2005 - 2006
CEMENT FIXED RESISTOR
(2) PRM Type
Heat Rise Chart
Dimension (mm)
Part No.
Style
+0.02
Resistance Range
P±1
Wire-
wound
0.1 -27
0.1
0.1
0.1
0.1
0.1
0.1
0.1
–39
-47
-680
-910
-47
–560
-680
W±1 D±1 L±1 d
- 0.05
11.5
12.5
12.5
12.5
12.5
12.5
16
12.5
7.5
8.5
9
9
9
9
12
9
20
25
25
38
50
25
35
38
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
Power Film
28
40
48
681
911
-33K
-56K
-100K
-200K
-200K
PRM02W
PRM03W
PRM05W
PRM07W
PRM0AW
PRMA5W
PRMAAW
PRMB7W
PRM-2W
PRM-3W
PRM-5W
PRM-7W
PRM-10W
PRMA-5W
PRMA-10W
PRMB-7W
5
5
5
5
5
7.5
7.5
5
48 -100K
561
681
-100K
-200K
(3) PRS Type
Derating Curve
Heat Rise Chart
Dimension (mm)
Part No.
PRS05W
PRS07W
PRS0AW
PRS0FW
1
P
5
10
10
11
Resistance Range
Wire-wound Power Film
0.1
0.1
0.1
1
-47
-680
-910
-1K
48
681
911
-100K
-200K
-200K
Style
W
PRS-5W
PRS-7W
PRS-10W
PRS-15W
10
10
10
12.5
D
9
9
9
11.5
L
22
35
49
49
Recommendable hole:
2005 - 2006
Page 33
CEMENT FIXED RESISTOR
(4) PRZA-1, PRZA-2, PRZA-3, PRZC, PRZD Type
PRZA-1, PRZA-2, PRZA-3, PRZC, PRZD
PRZA-1, PRZA-2, PRZA-3
PRZC, PRZD
Recommendable Hole
Dimension (mm)
Power Rating
PRZA-1, PRZA-2, PRZA-3
5W
7W
10W
PRZC, PRZD
9.5 / 15
22
32 / 35
P
15W
32
20W
45
Page 34
2005 - 2006
CEMENT FIXED RESISTOR
Dimension
Power
Part No.
Rating
Dimension (mm)
Type
W±1
D±1
L
25 ± 1
PZ1A5W
PRZA-1
10
9
27 ± 1
PZ2A5W
5W
PZ3A5W
PRZC5W
PRZD5W
PZ1A7W
PZ2A7W
7W
PRZC7W
PRZD7W
PZ1AAW
PZ2AAW
10W
PRZCAW
PRZDAW
PZ1AFW
PZ2AFW
PRZCFW
PZ1A20
PZ2A20
PRZC20
20W
15W
PRZC
PRZD
PRZA-1
PRZA-2
PRZC
PRZA-1
PRZA-2
PRZC
10
10
12.5
12.5
12.5
12.5
12.5
12.5
9
9
11.5
11.5
11.5
13.5
13.5
13.5
48 ± 1.5
48 ± 1.5
48 ± 1.5
48 ± 1.5
48 ± 1.5
63 ± 1.5
63 ± 1.5
63 ± 1.5
*32 / *35
32 / 35
32
32
*32
45
45
*45
7
7
10
10
10
10
10
10
1.5
1.5
3
3
2
3
3
2
5
5
3.5
3.5
36
24
35
47
47
35
47
47
22
10
15
30
30
15
30
30
2
- 1.2K
1
- 1K
PRZC
PRZD
PRZA-1
PRZA-2
10
10
10
10
9
9
9
9
35 ± 1
35 ± 1
48 ± 1.5
48 ± 1.5
*22
22
32 / 35
32 / 35
7
7
7
7
1.5
1.5
1.6
1.6
3.5
3.5
36
24
24
39
22
10
10
25
1
- 820
821
- 100K
PRZA-3
PRZC
PRZD
PRZA-1
PRZA-2
10
10
10
10
10
9
9
9
9
9
27 ± 1
27 ± 1
27 ± 1
35 ± 1
35 ± 1
15
*15
15
22
22
7
7
7
7
7
1.3
1.5
1.5
1.6
1.6
3.5
3.5
39
36
24
24
39
25
22
10
10
25
0.1
- 560
561
- 100K
PRZA-2
10
9
27 ± 1
15
15
7
1.6
39
25
0.1
- 120
121
- 56K
P ± 1.5
9.5
7
1.6
24
10
T
1
± 1
T
2
±0.2 T
3
±0.5
H
1
+2
-1
H
2
+2
-1
Resistance Range
Wire-wound
Power Film
*PRZC type Pitch Tolerance = +2 ~ +6
(5) PRVA Type
(6) PRVB Type
Heat Rise Chart (PRVA / PRVB)
2005 - 2006
Page 35
