Metal (Oxide) Film Resistors
Metal (Oxide) Film Resistors
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-flammable
● High Reliability
● Automatic Insertion
● Reference Standards
IEC 60115-2, IEC 60115-4, JIS C 5201-4, EIAJ RC-2138
compliant
● RoHS
Explanation of Part Numbers
Ex.1 : ERX type
1
2
3
E
R
X
Product Code
Metal Film
Resistors
ERX
4
5
6
2
S
Z
7
8
9
10
11
12
J
W
1
R
0
E
Resistance
Resistance Value
Style · Specification
Tolerance
Small size
The
first
two
digits are significant figures
S
J
±5 %
0.5 W to 5 W
of resistance and the third one denotes
G
±2
%
Small size Anti-heat
number of zeros following.
conducting type
Decimal point is expressed by
F (Fe lead wire)
(Ex.) 1R0 : 1.0 Ω
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 (Ω)
Part No. Tolerance
Code
Forming / Packaging
12S 1S 2S 3S 5S 1F 2F 3F 5F
ERX□□SZ
ERX□□S
□···□ Straight lead wire type
±5 %
0.10 to 0.18
0.20 to 9.1
○ ○ ○ ○ ○ ○ ○ ○ ○
ERX12S
□···P Cut & Forming type
±2 %
0.10 to 0.91
1.0 to 9.1
○ ○ ○ ○ ○
□···V Axial taping type (Straight lead) ○ ○ ○ ○
ERX1S
±5 %
0.10 to 0.18
0.20 to 9.1
○ ○ ○
U···V Axial taping type (Stand off)
ERX1F
±2 %
0.10 to 0.91
1.0 to 9.1
○ ○ ○
□···E Radial taping type (E type)
ERX2S
±5 %
0.10 to 0.20
0.22 to 9.1
○ ○ ○
W···E Radial taping type (WE type)
ERX2F
±2 %
0.10 to 0.91
1.0 to 9.1
○ ○ ○ ○
□··H Cut & Forming type
ERX3S
±5 %
0.10 to 0.20
0.22 to 9.1
○ ○ ○ ○
S···E Radial taping type (SE type)
ERX3F
±2 %
0.10 to 0.91
1.0 to 9.1
○ ○ ○
ERX5S
±5 %
0.33 to 9.1
—
ERX5F
±2 %
1.0 to 9.1
Power Rating at 70 °C
12
0.5 W
1
1W
2
2W
3
3W
5
5W
The above example 1 shows a small metal film resistor, 2 W power rating, resistance value of 1.0 Ω, tolerance ±5 %, and package of radial taping.
Ex.2 : ERG type
1
2
3
E
R
G
Product Code
Metal Oxide
Film Resistors
ERG
Power Rating at 70 °C
12
0.5 W
1
1W
2
2W
3
3W
5
5W
4
5
6
7
8
9
10
11
12
2
S
J
W
1
0
3
E
Style · Specification
S Small size
0.5 W to 5 W
Small size Anti-heat
conducting type
F
(Fe lead wire)
1 W to 5 W
Resistance Value
The first two digits are significant figures
of resistance and the third one denotes
number of zeros following.
Decimal point is expressed by
(Ex.) 103 : 10 kΩ
The matrix of forming and packaging is as shown in the table below.
Forming & Taping matrix
Forming / Packaging
Code
12S 1S 2S 3S 5S 1F 2F 3F 5F
□···□ Straight lead wire type
○ ○ ○ ○ ○ ○ ○ ○ ○
□···P Cut & Forming type
○ ○ ○ ○ ○
□···V Axial taping type(Straight lead) ○ ○ ○ ○
○ ○ ○
U···V Axial taping type(Stand off)
○ ○ ○
□···E Radial taping type(E type)
○ ○ ○
W···E Radial taping type(WE type)
○ ○ ○ ○
□···H Cut & Forming type
○ ○ ○ ○ ○
S···E Radial taping type(SE type)
○ ○ ○
Resistance
Tolerance
J
±5 %
G
±2 %
The above example 2 shows a small metal oxide film resistor, 2 W power rating, resistance value of 10 kΩ, 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. 2014
Metal (Oxide) Film Resistors
Construction
Dimensions in mm (not to scale)
k
Lead wire
type : Cu wire
( SF type
: Fe wire )
High reliable metal oxide film (ERG)
High reliable metal plating film
(ERX)
k
L
fD
fd
Dimensions (mm)
Part No.
Ceramic core
(High thermal conductivity)
0D
L
+0.65
2.3 –0.3
+0.5
30.0
±3.0
+1.50
2.8
±0.5
30.0
±3.0
±1.0
30.0
±1.0
±1.0
ERG(X)12S 6.35 –0.35
Spiralling
turns
Marking
ERG(X)1S
ERG(X)1F
Flame and solvent retardant
End cap
0d
k
9.00 –1.00
ERG(X)2S
ERG(X)2F
12.00 –1.00
+1.50
4.0
ERG(X)3S
ERG(X)3F
15.00
±1.50
5.5
ERG(X)5S
ERG(X)5F
24.00
±1.50
8.0
Mass
(Weight)
[g/pc.]
0.65
±0.05
0.65
±0.05
0.80
±0.05
±3.0
0.80
±0.05
0.66
38.0
±3.0
0.80
±0.05
1.47
38.0
±3.0
0.80
±0.05
3.54
0.26
0.33
Ratings
Part No.
ERG(X)12S
ERG(X)1S
ERG(X)1F
ERG(X)2S
ERG(X)2F
ERG(X)3S
ERG(X)3F
ERG(X)5S
ERG(X)5F
Maximum Dielectric
Maximum
Intermittent Withstanding
Overload
Overload
Voltage
(2)
Voltage
(3)
Voltage
(V)
(V)
(VAC)
Power
Rating
at 70 °C
(W)
Limiting
Element
(1)
Voltage
(V)
0.5
300
600
600
350
1
350
600
600
350
2
350
700
1000
600
3
350
700
1000
1000
5
500
1000
1500
1000
(1) Rated Continuous Working Voltage (RCWV) shall be determined
from RCWV=√Power Rating×Resistance Value or Limiting Element
Voltage listed above whichever less.
(2) Overload (Short-time Overload) Test Voltage (SOTV) shall be
determined from SOTV=2.5×Power Rating or max. Overload
Voltage listed above whichever less.
(3) Intermittent Overload Test Voltage (IOTV) shall be determined from
IOTV=4.0×Power Rating or max. Intermittent Overload Voltage
listed above whichever less.
Res.
Tol.
(4)
(%)
G
J
G
J
G
J
G
J
G
J
(±2)
(±5)
(±2)
(±5)
(±2)
(±5)
(±2)
(±5)
(±2)
(±5)
Resistance
(5)
Range (Ω)
(6)
min.
1
0.2
1
0.2
1
0.22
1
0.22
1
0.33
Standard
T.C.R.
Resistance
–6
(×10 /°C)
Value
max.
22 k
47 k
68 k
100 k
100 k
100 k
100 k
100 k
100 k
100 k
±350
E24
±350
E24
±350
E24
±300
E24
±200
E24
(4) Resistance tolerance is of use besides range listed, please inquire.
(5) Resistance Range Type ERG : >10 Ω
Type ERX : 1(s) → T=1(s)
● T/t>100 → T/t=100
● PP
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