Metal (Oxide) Film Resistors
Metal (Oxide) Film Re sis tors
Type:
(Small size)
ERG(X)S
(0.5 W, 1 W, 2 W, 3 W, 5 W)
(Anti-heat conducting for PCB)
ERG(X)F
(1 W, 2 W, 3 W, 5 W)
Features
Miniaturized
50 % smaller compared to existing models
Non- ammable
High Reliability
Automatic Insertion
Reference Standards
IEC 60115-2, IEC 60115-4, JIS C 5201-4, EIAJ RC-2138
Explanation of Part Numbers
Ex.1 : ERX type
1 2 3 4 5 6 7 8 9 10 11 12
E R X 2 SZ J W 1 R 0E
Power Rating at 70 C Resistance
Product Code Style Specification Resistance Value
Tolerance
12 0.5 W
Metal Film
Small size
The first two digits are significant figures
ERX
S
J 5%
Resistors 1 1W
0.5Wto5W
of resistance and the third one denotes
G 2%
2 2W
Small size Anti-heat
number of zeros following.
3 3W
conducting type
Decimal point is expressed by
F
5 5W
(Fe lead wire)
(Ex.) 1R0 : 1.0
1Wto5W
Z is added according to resistance. The matrix of forming and packaging is as shown in the table below.
Forming & Taping matrix
Resistance Resistance Value Range ()
Type Code Forming / Packaging
Tolerance ERXSZ ERXS 12S 1S 2S 3S 5S 1F 2F 3F 5F
5% 0.10 to 0.18 0.20 to 9.1 Straight lead wire type
ERX12S
2% 0.10 to 0.91 1.0 to 9.1 P Cut & Forming type
ERX1S 5% 0.10 to 0.18 0.20 to 9.1 V Axial taping type (Straight lead)
ERX1F 2% 0.10 to 0.91 1.0 to 9.1 UV Axial taping type (Stand off)
ERX2S 5% 0.10 to 0.20 0.22 to 9.1 E Radial taping type (E type)
ERX2F 2% 0.10 to 0.91 1.0 to 9.1 WE Radial taping type (WE type)
ERX3S 5% 0.10 to 0.20 0.22 to 9.1 H Cut & Forming type
ERX3F 2% 0.10 to 0.91 1.0 to 9.1 SE Radial taping type (SE type)
ERX5S 5% 0.33 to 9.1
ERX5F 2% 1.0 to 9.1
The above example 1 shows a small metal lm resistor, 2 W power rating, resistance value of 1.0 , tolerance 5 %, and package of radial taping.
Ex.2 : ERG type
1 2 3 4 5 6 7 8 9 10 11 12
E R G 2SWJ 1 0 3E
Resistance Value
Product Code Power Rating at 70 C Style Specification Resistance
Tolerance The first two digits are significant figures
Metal Oxide 12 0.5 W Small size
S
ERG
J 5% of resistance and the third one denotes
Film Resistors 1 1W 0.5Wto5W
G 2% number of zeros following.
2 2W Small size Anti-heat
Decimal point is expressed by
3 3W conducting type
F
(Ex.) 103 : 10 k
5 5W (Fe lead wire)
1Wto5W The matrix of forming and packaging is as shown in the table below.
Forming & Taping matrix
Code Forming / Packaging
12S 1S 2S 3S 5S 1F 2F 3F 5F
Straight lead wire type
P Cut & Forming type
V Axial taping type(Straight lead)
UV Axial taping type(Stand off)
E Radial taping type(E type)
WE Radial taping type(WE type)
H Cut & Forming type
SE Radial taping type(SE type)
The above example 2 shows a small metal oxide lm resistor, 2 W power rating, resistance value of 10 k, tolerance 5 %, and package of radial taping.
Design and speci cations are each subject to change without notice. Ask factory for the current technical speci cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Feb. 2008Metal (Oxide) Film Resistors
Construction Dimensions in mm (not to scale)
Lead wire
k L k D
S type : Cu wire
High reliable metal oxide lm (ERG)
( )
F type : Fe wire
d
High reliable metal plating lm
(ERX)
Ceramic core
Mass
Dimensions (mm)
(High ther mal conduc tiv i ty)
Type (Weight)
L D k d
[g/pc.]
Spira l ling +0.65 +0.5 3.0 0.05
ERG(X)12S 6.35 0.35 2.3 0.3 30.0 0.65 0.26
turns
Marking
0.05
ERG(X)1S 0.65
+1.50 0.5 3.0
9.00 2.8 30.0
1.00 0.33
0.05
ERG(X)1F 0.80
ERG(X)2S
+1.50 1.0 3.0 0.05
12.00 4.0 30.0 0.80 0.66
1.00
ERG(X)2F
Flame and solvent retardant
ERG(X)3S
1.50 1.0 3.0 0.05
15.00 5.5 38.0 0.80 1.47
ERG(X)3F
ERG(X)5S
1.50 1.0 3.0 0.05
End cap
24.00 8.0 38.0 0.80
3.54
ERG(X)5F
Ratings
Limiting
Maximum Dielectric
Power Element Maximum Resistance
Intermittent With- Res. T.C.R. Standard
(5)
Rating Voltage Overload Range ( ) 6
Type (2) Overload stand ing Tol. [10 /C Resistance
at 70 C (Maximum Voltage (3) (4)
(1) Voltage Voltage (%) (ppm/C)] Value
(W) RCWV) (V)
(6)
(V) (VAC)
min. max.
(V)
G (2) 1 22 k
ERG(X)12S 0.5 300 600 600 350 350 E24
J (5) 0.2 47 k
ERG(X)1S G (2) 1 68 k
1 350 600 600 350 350 E24
ERG(X)1F
J (5) 0.2 100 k
G (2) 1 100 k
ERG(X)2S
2 350 700 1000 600 350 E24
ERG(X)2F J (5) 0.22 100 k
G (2) 1 100 k
ERG(X)3S
3 350 700 1000 1000 300 E24
ERG(X)3F J (5) 0.22 100 k
ERG(X)5S G (2) 1 100 k
5 500 1000 1500 1000 200 E24
ERG(X)5F
J (5) 0.33 100 k
(1) Rated Continuous Working Voltage (RCWV) shall be determined (4) Resistance tolerance is of use besides range listed, please inquire.
from RCWV=Power RatingResistance Value or Limiting Element (5) Resistance Range Type ERG : >10
Voltage (max. RCWV) listed above whichever less. Type ERX : <9.1
(2) Overload (Short-time Overload) Test Voltage (SOTV) shall be de- (6) As for the low resistance value range, is given to the part
termined from SOTV=2.5Power Rating or max. Overload Voltage number. (Refer to the explanation of part numbers.)
listed above whichever less.
(3) Intermittent Overload Test Voltage (IOTV) shall be determined from
Z type is non standard resistance values.
IOTV=4.0Power Rating or max. Intermittent Overload Voltage listed
above whichever less.
Code Type Res.Tol. Res. Value Range Code Type Res.Tol. Res. Value Range
2 % 0.1 to 0.91 2 % 0.1 to 0.91
2S
12S
2F
5 % 0.1 to 0.18 5 % 0.1 to 0.2
Z Z
2 % 0.1 to 0.91 2 % 0.1 to 0.91
1S 3S
1F 3F
5 % 0.1 to 0.18 5 % 0.1 to 0.2
Power Derating Curve 120
55 C 70 C
For resistors operated in ambient temperatures above
100
70 C, power rating shall be derated in accordance
80
ERG(X)1S, 1F
with the gure on the right.
ERG(X)2S, 2F
60
ERG(X)12S ERG(X)3S, 3F
40
ERG(X)5S, 5F
20
235 C
130 C
0
60 40 20 0 20 40 60 80 100 120 140 160 180 200 220 240
Ambient Temperature (C)
Design and speci cations are each subject to change without notice. Ask factory for the current technical speci cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Feb. 2006
Rated Load (%)