x Self extinguishing
x Excellent flame and moisture resistance
x Extremely small sturdy and mechanically safe
x Non-inductive types available for all Royal Ohm Cement Types
x Too low or too high ohmic values on Wire-wound & Power Film type can be supplied on a case to
case basis
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;
Tolerance:
J = ±5%,
K = ±10%
Resistance Value:
E-24 series: the 1st digit to denote
production type of the product:
W=Wire wound type
P=Power film type
The 2nd & 3rd digits are for the
significant figures of the resistance
and the 4th digit denotes number of
zeros following.
Decimal point is expressed by:
“J”- 0.1, “K”- 0.01, “L”- 0.001
Ex. 4ȍ7 ~ W47J
Packing Type:
B =Bulk / Box
Packing Qty:
0 = for Bulk / Box
packing
Special Feature:
0 = Standard product
I = Non-Inductive
Wattage:
2W = 2W
3W = 3W
5W = 5W
7W = 7W
AW = 10W
FW = 15W
20 = 20W
25 = 25W
30 = 30W
40 = 40W
CEMENT FIXED RESISTOR
Ordering Procedure: (Ex.: PRW 5W, 5%, 100ȍ, B/B)
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2005 - 2006
Temperature coefficient < 20ȍ: ±400PPM/°C; 20ȍ: ±350PPM/°C
Short-time overload ¨R/R ±(5.0% + 0.05ȍ), with no evidence of mechanical damage.
Dielectric withstanding voltage No evidence of flashover, mechanical damage, arcing or insulation breakdown.
Terminal strength No evidence of mechanical damage.
Solderability Min. 95% coverage
Temperature cycling ¨R/R ±(2.0% + 0.05ȍ), with no evidence of mechanical damage.
Humidity (Steady State) ¨R/R ±(5.0% + 0.05ȍ), with no evidence of mechanical damage.
Load life in humidity For Wire-wound range, the ¨R/R is ±5%
For Power film range, <100Kȍ, the ¨R/R is ±5%
Load life For Wire-wound range, the ¨R/R is ±5%
For Power film range, <100Kȍ, the ¨R/R is ±5%
For Power film range, 100Kȍ, the ¨R/R is ±10%
For Power film range, 100Kȍ, the ¨R/R is ±10%
Resistance to soldering heat ¨R/R ±(1.0% + 0.05ȍ), with no evidence of mechanical damage.
* For complete details, please see Page 69.
(1) PRW Type
(1-1) PRWA Type
Part No. Style
Dimension (mm) Resistance Range
W ± 1 D ± 1 L ± 1 d
+0.02
- 0.05
H ± 5 Wire-
wound Power Film
P R W 0 2 W PRW – 2W 7 7 18 0.8 28 0.1ȍ ~ 27ȍ 28ȍ ~ 33Kȍ
P R W 0 3 W PRW – 3W 8 8 22 0.8 32 0.1ȍ ~ 39ȍ 40ȍ ~ 56Kȍ
P R W 0 5 W PRW – 5W 10 9 22 0.8 35 0.1ȍ ~ 47ȍ 48ȍ ~ 100Kȍ
P R W 0 7 W PRW – 7W 10 9 35 0.8 35 0.1ȍ ~ 680ȍ 681ȍ ~ 200Kȍ
P R W 0 A W PRW – 10W 10 9 49 0.8 35 0.1ȍ ~ 910ȍ 911ȍ ~ 200Kȍ
P R W 0 F W PRW – 15W 12.5 11.5 49 0.8 35 1ȍ ~ 1Kȍ
P R W 0 2 0 PRW – 20W 14.5 13.5 60 0.8 35 2ȍ ~ 1.2Kȍ
P R W 0 2 5 PRW – 25W 14.5 13.5 64 35 2ȍ ~ 1.2Kȍ0.8
Part No. Style
Dimension (mm) Resistance Range
W ± 1 D ± 1 L ± 1 d
+0.02
- 0.05
H ± 5 Wire-
wound Power Film
PRWA2W PRWA - 2W 7 7 18 0.8 28 0.1ȍ ~ 27ȍ 28ȍ ~ 33Kȍ
PRWA5W PRWA - 5W 10 9 22 0.8 35 0.1ȍ ~ 47ȍ 48ȍ ~ 100Kȍ
PRWA7W PRWA - 7W 10 9 35 0.8 35 0.1ȍ ~ 680ȍ 681ȍ ~ 200Kȍ
PRWAAW PRWA -10W 10 9 49 0.8 35 0.1ȍ ~ 910ȍ 911ȍ ~ 200Kȍ
Part No. Style
Dimension (mm) Resistance Range
W ± 1 D ± 1 L ± 1 d
+0.02
- 0.05
H ± 5 Wire-
wound Power Film
PRWC3W PRWC - 3W 6 6 20 0.8 28 1ȍ ~ 27ȍ 28ȍ ~ 33Kȍ
PRWC5W PRWC - 5W 6 6 25 0.8 35 1ȍ ~ 200ȍ 201ȍ ~ 100Kȍ
PRWC7W PRWC - 7W 9 9 25 0.8 35 1ȍ ~ 200ȍ 201ȍ ~ 100Kȍ
(1-2) PRWC Type
Derating Curve Heat Rise Chart
CEMENT FIXED RESISTOR
Page 32 2005 - 2006
(2) PRM Type Heat Rise Chart
Part No. Style
Dimension (mm) Resistance Range
W ± 1 D ± 1 L ± 1 d
+0.02
- 0.05
P ± 1 Wire-
wound Power Film
PRM02W PRM-2W 11.5 7.5 20 0.8 5 0.1ȍ-27ȍ 28ȍ -33Kȍ
PRM03W PRM-3W 12.5 8.5 25 0.8 5 0.1ȍ –39ȍ 40ȍ -56Kȍ
PRM05W PRM-5W 12.5 9 25 0.8 5 0.1ȍ -47ȍ 48ȍ -100Kȍ
PRM07W PRM-7W 12.5 9 38 0.8 5 0.1ȍ -680ȍ 681ȍ -200Kȍ
PRM0AW PRM-10W 12.5 9 50 0.8 5 0.1ȍ -910ȍ 911ȍ -200Kȍ
PRMA5W PRMA-5W 12.5 9 25 0.8 7.5 0.1ȍ -47ȍ 48ȍ-100Kȍ
PRMAAW PRMA-10W 16 12 35 0.8 7.5 0.1ȍ –560ȍ 561ȍ -100Kȍ
PRMB7W PRMB-7W 12.5 9 38 5 0.1ȍ -680ȍ 681ȍ -200Kȍ0.8
(3) PRS Type Derating Curve Heat Rise Chart
Part No. Style
Dimension (mm) r 1
W D L P Wire-wound Power Film
PRS05W PRS-5W 10 9 22 5 0.1ȍ -47ȍ 48ȍ -100Kȍ
PRS07W PRS-7W 10 9 35 10 0.1ȍ -680ȍ 681ȍ -200Kȍ
PRS0AW PRS-10W 10 9 49 10 0.1ȍ -910ȍ 911ȍ -200Kȍ
PRS0FW PRS-15W 12.5 11.5 49 11 1ȍ -1Kȍ
Resistance Range
Recommendable hole:
CEMENT FIXED RESISTOR
Page 33
2005 - 2006
(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
Power Rating
Dimension (mm)
P
PRZA-1, PRZA-2, PRZA-3 PRZC, PRZD
5W 9.5 / 15
7W 22
10W 32 / 35
15W 32
20W 45
CEMENT FIXED RESISTOR
Page 34 2005 - 2006
Dimension
Part No. Power
Rating Type
Dimension (mm) Resistance Range
W ± 1 D ± 1 LP ± 1.5 T1± 1 T2 ±0.2 T3±0.5 H1
+2
-1 H2
+2
-1 Wire-wound Power Film
PZ1A5W
5W
PRZA-1 10 9
25 ± 1 9.5
7 1.6 24 10
0.1ȍ - 120ȍ 121ȍ - 56Kȍ
27 ± 1 15
PZ2A5W PRZA-2 10 9
27 ± 1 15 7 1.6 39 25
PZ3A5W PRZA-3 10 9
27 ± 1 15 7 1.3 39 25
PRZC5W PRZC 10 9
27 ± 1 *15 7 1.5 3.5 36 22
PRZD5W PRZD 10 9
27 ± 1 15 7 1.5 3.5 24 10
PZ1A7W
7W
PRZA-1 10 9 35 ± 1 22 7 1.6 24 10
0.1ȍ - 560ȍ 561ȍ - 100Kȍ
PZ2A7W PRZA-2 10 9
35 ± 1 22 7 1.6 39 25
PRZC7W PRZC 10 9
35 ± 1 *22 7 1.5 3.5 36 22
PRZD7W PRZD 10 9
35 ± 1 22 7 1.5 3.5 24 10
PZ1AAW
10W
PRZA-1 10 9 48 ± 1.5 32 / 35 7 1.6 24 10
1ȍ - 820ȍ 821ȍ - 100Kȍ
PZ2AAW PRZA-2 10 9
48 ± 1.5 32 / 35 7 1.6 39 25
PRZCAW PRZC 10 9
48 ± 1.5 *32 / *35 7 1.5 3.5 36 22
PRZDAW PRZD 10 9
48 ± 1.5 32 / 35 7 1.5 3.5 24 10
PZ1AFW
15W
PRZA-1 12.5 11.5 48 ± 1.5 32 10 3 35 15
1ȍ - 1KȍPZ2AFW PRZA-2 12.5 11.5
48 ± 1.5 32 10 3 47 30
PRZCFW PRZC 12.5 11.5
48 ± 1.5 *32 10 2 5 47 30
PZ1A20
20W
PRZA-1 12.5 13.5 63 ± 1.5 45 10 3 35 15
2ȍ - 1.2KȍPZ2A20 PRZA-2 12.5 13.5
63 ± 1.5 45 10 3 47 30
PRZC20 PRZC 12.5 13.5
63 ± 1.5 *45 10 2 5 47 30
*PRZC type Pitch Tolerance = +2 ~ +6
CEMENT FIXED RESISTOR
Page 35
2005 - 2006
(5) PRVA Type (6) PRVB Type Heat Rise Chart (PRVA / PRVB)
*P2 for PRVB
Part No. Style
PRVA+PRVB
Resistance Range
W D L P P1H1H2*P2± 0.2 Wire-wound Power Film
PRVA3W/ PRVB3W 3W 10.0 9.0 22 9.5 5 25.0 10.5 1.3 0.1ȍ ~ 47ȍ 48ȍ ~33Kȍ
PRVA5W/ PRVB5W 5W 10.0 9.0 27 / 25 15 / 9.5 5 25.0 10.5 1.3 0.1ȍ ~ 120ȍ 121ȍ ~56Kȍ
PRVA7W/ PRVB7W 7W 10.0 9.0 35 22 5 25.0 10.5 1.3 0.1ȍ ~ 560ȍ 561ȍ ~100Kȍ
PRVAAW/ PRVBAW 10W 10.0 9.0 48 35 / 32 5 25.0 10.5 1.3 1ȍ ~ 820ȍ 821ȍ ~100Kȍ
PRVAFW/ PRVBFW 15W 12.5 11.5 48 32 5 27.5 10.5 1.5 1ȍ ~ 1Kȍ
PRVA20/ PRVB20 20W 12.5 13.5 63 45 5 29.5 10.5 1.5 1ȍ ~ 1.2Kȍ
Dimension (mm) ± 1
(7) PRT Type Heat Rise Chart (PRT) Derating Curve
Part No. Style Power
Rating
Resistance Range
W D L P H T Wire-wound Power Film
PRT0AW PRT - 10W 10W 10 9 48 32 18 12 1ȍ ~ 820ȍ 821ȍ ~ 100Kȍ
PRT0FW PRT - 15W 15W 12.5 11.5 48 32 21 12 1ȍ ~ 1Kȍ
PRT020 PRT - 20W 20W 12.5 13.5 63 45 21 12 2ȍ ~ 1.2Kȍ
PRT030 PRT - 30W 30W 19 19 75 56 32 Max 18 3ȍ ~ 1.5Kȍ
PRT040 PRT - 40W 40W 19 19 90 70 32 Max 18 6ȍ ~ 1.5Kȍ
Dimension (mm) ± 1
(8) PRU Type
Part
No. Style Resistance Range
W D L P H Wire-wound Power Film
PRU0AW PRU - 10W 10.0 9 48 32 18 1ȍ ~ 820ȍ 821ȍ ~ 100Kȍ
PRU0FW PRU - 15W 12.5 11.5 48 32 21 1ȍ ~ 1Kȍ
PRU020 PRU - 20W 12.5 13.5 63 45 21 2ȍ ~ 1.2Kȍ
PRU030 PRU - 30W 19.0 19 75 56 32 Max 3ȍ ~ 1.5Kȍ
PRU040 PRU - 40W 19.0 19 90 70 32 Max 6ȍ ~ 1.5Kȍ
Dimension (mm) ± 1
Power
Rating
10W
15W
20W
30W
40W
CEMENT FIXED RESISTOR
Page 36 2005 - 2006
