Metal (Oxide) Film Resistors
Metal (Oxide) Film Resis tors
Type: ERG(X)S (Small size)
(0.5 W, 1 W, 2 W, 3 W, 5 W)
ERG(X)F (Anti-heat conducting for PCB)
(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
RoHS compliant
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 Specication Resistance Value
Tolerance
12 0.5 W
Metal Film
Small size
The rst two digits are signicant gures
ERX
S
J 5 %
Resistors 1 1 W
0.5 W to 5 W
of resistance and the third one denotes
G 2 %
2 2 W
Small size Anti-heat
number of zeros following.
3 3 W
conducting type
Decimal point is expressed by
F
5 5 W
(Fe lead wire)
(Ex.) 1R0 : 1.0
1 W to 5 W
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 ()
Part No. 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 film 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 Specication Resistance
Tolerance The rst two digits are signicant gures
Metal Oxide 12 0.5 W Small size
S
ERG
J 5 % of resistance and the third one denotes
Film Resistors 1 1 W 0.5 W to 5 W
G 2 % number of zeros following.
2 2 W Small size Anti-heat
Decimal point is expressed by
3 3 W conducting type
F
(Ex.) 103 : 10 k
5 5 W (Fe lead wire)
1 W to 5 W 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 film resistor, 2 W power rating, resistance value of 10 k, tolerance 5 %, and package of radial taping.
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
02 Sep. 2014Metal (Oxide) Film Resistors
Construction Dimensions in mm (not to scale)
Lead wire k L k fD
S type : Cu wire
High reliable metal oxide lm (ERG)
( )
fd
F type : Fe wire
High reliable metal plating lm
(ERX)
Mass
Dimensions (mm)
Part No. (Weight)
Ceramic core
L 0D k 0d
[g/pc.]
(High thermal conduc tiv i ty)
+0.65 +0.5 3.0 0.05
ERG(X)12S 6.35 2.3 30.0 0.65 0.26
0.35 0.3
Spira l ling
0.05
turns Marking ERG(X)1S 0.65
+1.50 0.5 3.0
9.00 1.00 2.8 30.0 0.33
0.05
ERG(X)1F 0.80
ERG(X)2S
+1.50 1.0 3.0 0.05
12.00 1.00 4.0 30.0 0.80 0.66
ERG(X)2F
ERG(X)3S
1.50 1.0 3.0 0.05
15.00 5.5 38.0 0.80 1.47
Flame and solvent retardant
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
Maximum Dielectric
Power Limiting Maximum
Resistance
Intermittent With stand ing Res. Standard
(5)
Rating Element Overload T.C.R.
Range ()
Part No. Overload Voltage Tol. Resistance
(1) (2) 6
at 70 C Voltage Voltage (3) (4) (10 /C)
Voltage (%) Value
(6)
(W) (V) (V)
min. max.
(V) (VAC)
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
ERG(X)2S G (2) 1 100 k
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 listed above whichever less. Type ERX : <9.1
(2) Overload (Short-time Overload) Test Voltage (SOTV) shall be (6) As for the low resistance value range, is given to the part
determined from SOTV=2.5Power Rating or max. Overload number. (Refer to the explanation of part numbers.)
Voltage listed above whichever less.
(3) Intermittent Overload Test Voltage (IOTV) shall be determined from
IOTV=4.0Power Rating or max. Intermittent Overload Voltage
Z type is non standard resistance values.
listed above whichever less.
Code Part No. Res.Tol. Res. Value Range Code Part No. 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
with the figure on the right.
ERG(X)1S, 1F
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 specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
02 Sep. 2014
Rated Load (%)