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.
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)
The above example shows a small size metal oxide film resistor, 2 W power rating, resistance value of 10 k ohms, tolerance ±5 %, and package of
standard bulk packing.
nFeatures
lResistance Value Correspondence
A resistance value range is an electric power type resistor of 0.1 W to 100 kW.
lMiniaturization
About 50 % of small size/measuring were matrialized in comparison with an existing model.
lNoninflammable Nature
It is a resistor of the noninflammable nature/resistance solvent nature that leads an industry standard.
lHigh Relability
It is a wide use resistor that prides in a long standing a chievement and confidence.
lAutomatic Insertion
An automatic insertion is possible with solid structure.
lReference Standards
IEC 60115-2, IEC 60115-4, JIS C 5201-4, EIAJ RC-2138
nExplanation of Part Numbers
E
1
R
2
G
3 4
2
5
S
6
J
7 8
1
9
0
10
3
11 12
12
1
2
3
5
0.5 W
1W
2W
3W
5W
Power Rating
at 70 ¡C Amb.
ERG
ERX
Metal Oxide
Film Resistors
Metal Film
Resistors
Product Code Special Feature
S
F
Small size
0.5Wto5W
G
J
±
2%
±
5%
Resistance
Tolerance
The first two digits are significant figures of resistance
and the third one denotes number of zeros following.
Decimal point is expressed by
R as 2.7 = 2R7.
Ant-heat conducting
for PCB
Small size
(Fe lead wire type)
1Wto5W
ááá
áááV
áááP
UáááV
áááE
WáááE
SáááE
áááH
Straight lead wire type
Axial paping type (Straight lead)
Cut & Forming type
Axial paping type (Stand off)
Radial taping type (E type)
Radial taping type (WE type)
Radial taping type (SE type)
Cut & Forming type
ERG(X)12S ±2% 0.10 to 0.91 (
W
) 1.0 to 9.1 (
W
) 10 to22k(
W
)
 ±5% 0.10 to 0.18 (
W
) 0.20to 9.1 (
W
) 10 to47k(
W
)
ERG(X)1S ±2% 0.10 to 0.91 (
W
) 1.0 to 9.1 (
W
) 10 to68k(
W
)
±5% 0.10 to 0.18 (
W
) 0.20to 9.1 (
W
) 10 to100k(
W
)
ERG(X)2S ±2% 0.10 to 0.91 (
W
) 1.0 to 9.1 (
W
) 10 to100k(
W
)
 ±5% 0.10 to 0.20 (
W
) 0.22to 9.1 (
W
) 10 to100k(
W
)
ERG(X)3S ±2% 0.10 to 0.91 (
W
) 1.0 to 9.1 (
W
) 10 to100k(
W
)
±5% 0.10 to 0.20 (
W
) 0.22to 9.1 (
W
) 10 to100k(
W
)
ERG(X)5S ±2% _ 1.0 to 9.1 (
W
) 10 to100k(
W
)
±5% 0.33to 9.1 (
W
) 10 to100k(
W
)
Part No.
Resistance
 Resistance range

Tolerance
ERX
11
SZ ERX
11
S ERG
11
S
Part No.
Resistance
 Resistance range

Tolerance
ERX
11
FZ ERX
11
F ERG
11
F
ERG(X)1F ±2% 0.10 to 0.91 (
W
) 1.0 to 9.1 (
W
) 10 to68k(
W
)
±5% 0.10 to 0.18 (
W
) 0.20to 9.1 (
W
) 10 to100k(
W
)
ERG(X)2F ±2% 0.10 to 0.91 (
W
) 1.0 to 9.1 (
W
) 10 to100k(
W
)
 ±5% 0.10 to 0.20 (
W
) 0.22to 9.1 (
W
) 10 to100k(
W
)
ERG(X)3F ±2% 0.10 to 0.91 (
W
) 1.0 to 9.1 (
W
) 10 to100k(
W
)
±5% 0.10 to 0.20 (
W
) 0.22to 9.1 (
W
) 10 to100k(
W
)
ERG(X)5F ±2% _ 1.0 to 9.1 (
W
) 10 to100k(
W
)
±5% 0.33to 9.1 (
W
) 10 to100k(
W
)
Forming / Packaging Forming & Taping matrix
Code 12S1S 2S 3S 5S 1F 2F 3F 5F
@
@
@
@
@

@
@
@
@
@
@
@
@
@
@
@
@
@
@
@
@
@
@
@
@
@
 @
@
@
 @
@
@
Resistance Value
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.
Metal (Oxide) Film Resistors
nConstruction nDimensions in mm (not to scale)
High reliable metal oxide film (ERG)
High reliable metal plating film
(ERX)
Lead wire
S type : Cu wire
F type : Fe wire
Marking
Flame and solvent retardant
End cap
Type
Mass
(Weight)
[g/pc.]
Dimensions (mm)
nRatings
Power
Rating
at 70 ¡C
(W)
Maximum
Overload
Voltage(2)
(V)
Maximum
Intermittent
Overload
Voltage(3)
(V)
L
imiting
Element
Voltage
(Maximum
RCWV)
(1)
(V)
Type
Dielectric
With-
standing
Voltage
(VAC)
Res.
Tol.
(%)(4)
(1) Rated Continuous Working Voltage (RCWV) shall be determined
from RCWV=ÃPower Rating ´Resistance Value or Limiting Ele-
ment Voltage (max. RCWV) listed above whichever less.
(2) Overload (Short-time Overload) Test Voltage (SOTV) shall be de-
termined 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.
Resistance
Range (W)(5)
min.(6) max.
Standard
Resistance
Value
T.C.R.
[´10
-6
/ûC
(ppm/¡C)]
ERG(X)12S
0.5 300 600 600 350 G (±2) 1 22 k ±350 E24
J (±5) 0.2 47 k
ERG(X)1S 1 350 600 600 350 G (±2) 1 68 k ±350 E24
ERG(X)1F J (±5) 0.2 100 k
ERG(X)2S 2 350 700 1000 600 G (±2) 1 100 k ±350 E24
ERG(X)2F J (±5) 0.22 100 k
ERG(X)3S 3 350 700 1000 1000 G (±2) 1 100 k ±300 E24
ERG(X)3F J (±5) 0.22 100 k
ERG(X)5S 5 500 1000 1500 1000 G (±2) 1 100 k ±200 E24
ERG(X)5F J (±5) 0.33 100 k
f
d
f
D
kk
L
Power Derating Curve
For resistors operated in ambient temperatures above
70 ¡C, power rating shall be derated in accordance
with the right figure.
Ð60 Ð40 Ð20 0 20 40 60 80 100 120 140 160 180 200 220 240
0
20
40
60
80
100
120
130 ¡C
70 ¡CÐ55 ¡C
ERG(X)12S
ERG(X)1S, 1F
ERG(X)3S, 3F
ERG(X)5S, 5F
235 ¡C
Ambient Temperature (¡C)
Rated Load (%)
ERG(X)2S, 2F
Spiralling
turns
Ceramic core
(High thermal conductivity)
(4) Resistance tolerance is of use besides range listed, please in-
quire.
(5) Resistance Range Type ERG: >10 W
Type ERX: <9.1 W
(6) As for the low resistance value range, "Z" is given to the part
number. (Refer to the explanation of part numbers.)
ZZ
ZZ
ZZZ
ZZ
Z
2S
2F
3S
3F
12S
1S
1F
±2%
±5%
±2%
±5%
±2%
±5%
±2%
±5%
0.1 to 0.91 W
0.1 to 0.18 W
0.1 to 0.91 W
0.1 to 0.18 W
0.1 to 0.91 W
0.1 to 0.2 W
0.1 to 0.91 W
0.1 to 0.2 W
Code Code Type
Type Res.
Tol. Res.
T
ol.
Res. Value Range
Res. Value Range
* Z type is non standard resistance values.
LfDkfd
ERG(X)12S
6.35+0.65 2.3+0.5 30.0±3.0 0.65±0.05 0.26
ERG(X)1S 9.00+1.50 2.8±0.5 30.0±3.0 0.65±0.05 0.33
ERG(X)1F
ERG(X)2S 12.00+1.50 4.0±1.0 30.0±3.0 0.80±0.05 0.66
ERG(X)2F
ERG(X)3S 15.00±1.50 5.5±1.0 38.0±3.0 0.80±0.05 1.47
ERG(X)3F
ERG(X)5S 24.00±1.50 8.0±1.0 38.0±3.0 0.80±0.05 3.54
ERG(X)5F
Ð0.35
Ð1.00
Ð0.3
Ð1.00
()
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.
Metal (Oxide) Film Resistors
nTaped & Box:
ERG(X)11S1111V
nStand-off Taped & Box:
ERG(X)11S1U111V
Part Number
ERG(X)12S11111V2000 5.0±0.3 250±2 52.0±1.5 ÑÑ
0.65
±0.05
85 80 255
ERG(X) 1S11111VÑÑ
2000 5.0±0.3 250±2 52.0±1.5
0.65
±0.05
85 80 255
ERG(X) 1S1U111V12.0Ð2.0 1.2+0.15
ERG(X) 2S11111VÑÑ
1000 5.0±0.3 250±2 52.0±1.5
0.80
±0.05
85 80 255
ERG(X) 2S1U111V15.5Ð2.0 1.4+0.15
ERG(X) 3S11111VÑÑ
1000 10.0±0.5 500±2 74.0±2.0
0.80
±0.05
105 100 325
ERG(X) 3S1U111V23.0Ð2.0 1.4+0.15
P50´PW H W
1fda b c
Standard
Quantity
(pcs./box)
0
0
nCut & Formed Type
ERG(X)11S1111P
Part Number
Standard
Quantity
(pcs./box)
Dimensions (mm)
ERG(X)2F1111H
1000 12.0+1.5 4.0±1.0 15.0±1.5 6±2
ERG(X)3F1111H
1000 15.0±1.5 5.5±1.0 20.0±2.0 10±2
ERG(X)5F1111H
500 24.0±1.5 8.0±1.0 30.0±2.0 10±2
LfDS h
Ð1.0
Part Number
Standard
Quantity
(pcs./box)
Dimensions (mm)
ERG(X)12S1111P
2000 6.35+0.65 2.3+0.5 10.0±1.5 4.0±1.5
ERG(X)1S1111P
2000 9.00+1.50 2.8±0.5 12.5±1.5 4.0±1.5
ERG(X)2S1111P
1000 12.00+1.50 4.0±1.0 15.0±1.5 6.0±1.5
ERG(X)3S1111P
1000 15.00±1.50 5.5±1.0 20.0±2.0 6.5±1.5
ERG(X)5S1111P
500 24.00±1.50 8.0±1.0 30.0±2.0 7.5±1.5
Ð0.35
Ð1.00
Ð1.00
Ð0.3
Taping (mm) Box (mm)
0
0
0
0
Marking
a
b
c
6.0
±
0.5
W
PP
f
d
crush width 0.8 mm (1 W)
1.1 mm (2 W, 3 W)
HH
W
W
1
f
d
S
L
f
0.80
±
0.05
1.0
1.4
±
0.2
f
D
Upper surface
of PW board
h
5.0
±
1.5
S
L
f
D
Upper surface
of PW board
h
0.8 (0.5 W, 1 W)
1.0 (2 W, 3 W, 5 W)
1.2
±
0.2 (0.5 W, 1 W)
1.4
±
0.2 (2 W, 3 W, 5 W)
f
0.65
±
0.05 (0.5 W, 1 W)
f
0.80
±
0.05 (2 W, 3 W, 5 W)
LfDS h
ERG(X)1F1111H
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.
Metal (Oxide) Film Resistors
P
P0
P1
P2
F
W
W1
H0
12S 6.5+0.6
1S 6.5+1.0
2S 6.5+1.0
4.0±0.2
12S 6.35+0.65
1S 9.0+1.5
2S 12.0+1.5
12S 11.2 max.
1S 14 max.
2S 17 max.
12S 2.3+0.5
1S 2.8±0.5
2S 4.0±1.0
12S 0.65±0.05
1S, 2S 0.80±0.05
W
W1
12S 32 max.
1S 32 max.
2S 38 max.
16.0±0.5
4.0±0.2
P
P0
P1
P2
F
nFor Panasert Automatic Insertion Machine Radial Tape & Box
Type ERG(X)11S1111E (12S, 1S, 2S)
Dimensions (mm)
12.7±1.0
12.7±0.3
3.85±0.70
6.35±1.00
5.0±0.8
Dimensions (mm)
18.0±0.5
9.0±0.5
Dimensions (mm)
H1
H0
fD0
Dimensions (mm)
A
fd
12S 6.35+0.65
1S 9.0+1.5
2S 12.0+1.5
0.65±0.05
Dimensions (mm)
fD
12S 2.3+0.5
1S 2.8±0.5
2S 4.0±1.0
Ð0.3
Ð0.35
Ð1.0
Ð1.0
lRadial Tape Package Specifications
Purt Number Standard Quantity
(pcs./box)
Dimensions (mm)
abc
ERG(X)12S1111E46 130 335 2000
ERG(X) 1S1111E46 130 335 2000
ERG(X) 2S1111E49 100 335 1000
12S 12.7±1.0
1S, 2S 30.0±1.0
12S 12.7±0.3
1S, 2S 15.0±0.3
12S 6.35±1.00
1S, 2S 7.5±1.0
12S 3.85±0.70
1S, 2S 3.75±0.50
12S 5.0±0.5
1S, 2S 7.5±0.8
18.0±0.5
9.0±0.5
12S 16.0±0.5
1S 18.0±1.0
2S 18.0±1.0
Dimensions (mm)
nFor Panasart Automatic Insertion Machine Radial Taped & Box
Type ERG(X)11S1W111E (12S, 1S, 2S)
Dimensions (mm)
0
H1
fD0
A
B
fD
fd
0
0
Ð0.3
Ð1.0
Ð1.0
Ð0.35
a
b
c
Marking
P
1
P
AB
FP
2
H
1
H
0
W
1
W
f
d
f
D
P
0
f
D
0
P0
f
D0
f
d
W
H1
P1
F
PP
2
f
D
A
Insulated
Lead
W1
H0
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.
Metal (Oxide) Film Resistors
H2
fD0
A
B
fD
fd
1.0±0.3
4.0±0.2
1F 9.0+1.5
Ð1.0
2F 12.0+1.5
Ð1.0
3F 15.0±1.5
1F 14 max.
2F 17 max.
3F 21 max.
1F 2.8±0.5
2F 4.0±1.0
3F 5.5±1.0
0.80±0.05
30.0±1.0
15.0±0.3
7.5±1.0
3.75±0.50
7.5±0.8
18.0±0.5
9.0±0.5
16.0+1.0
1F 7.0+0.1
2F 8.0+0.1
3F 9.0+0.1
Dimensions (mm)
nFor Panasart Automatic Insertion Machine Radial Taped & Box
Type ERG(X)1F1S111E (1F, 2F, 3F)
Dimensions (mm)
P
P0
P1
P2
F
W
W1
H0
H1
0
0
0
0
l Radial Tape Package Specifications
Type Standard Quantity
(pcs./box)
Dimensions (mm)
P
1
P
F
P
2
H
2
H
1
H
0
f
d
P
0
f
D
0
f
D
W
1
W
A B
a
b
c
Marking
abc
ERG(X)12S1W111E46 145 325 2000
ERG(X)1S1W111E49 150 317 1000
ERG(X)1F1S111E
ERG(X)2S1W111E49 150 317 500
ERG(X)2F1S111E
ERG(X)3F1S111E49 190 315 500
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.
Metal (Oxide) Film Resistors
Hot-spot Temperature (for Refference)
The temperature of resistor body increase with the curve below. A touch of vinyl wire may cause
damages to resistor element. It is requested not to place vinyl wires around resistors and to be considered
where the resistor shall be placed.
A
B
Measuring position
25 50 75 1000
+50
+100
+150
+200
+250
Rated Load (%)
Temperature
o
T (¡C)
1S-A
1S-B
12S-A
12S-B
25 50 75 1000
+50
+100
+150
+200
+250
Rated Load (%)
Temperature
o
T (¡C)
2F-A
2S-A
2S-B
2F-B
25 50 75 1000
+50
+100
+150
+200
+250
Rated Load (%)
Temperature
o
T (¡C)
3F-A
3S-A
3S-B
3F-B
25 50 75 1000
+50
+100
+150
+200
+250
Rated Load (%)
Temperature
o
T (¡C)
5F-A
5S-A
5S-B
5F-B
Cautions for Safety
The following are precautions for individual products. Please also refer to the precautions common to Fixed
Resistors shown on page ER3 of this catalog.
1. Transient voltage
If there is a possibility that the transient phenomenon (significantly high voltage applied in a short time) may
occur or that a high voltage pulse may be applied, make sure to evaluate and check the characteristics of
Metal (Oxide) Film Resistors (hereafter called the Resistors) mounted on your product rather than only depending
on the calculated power limit or steady-state conditions to complete the design or decide to use the Resistors.
2. The Resistors are covered with a special coating. Do not apply shock or vibration to them, or pinch them with
long-nose pliers. Otherwise, the Resistors may be damaged.
3. Do not apply excessive tension to the lead-connected sections. When bending the lead wire, do not apply
excessive stress to the Resistors and provide the wire with a natural curvature.
4. Do not brush the Resistors during or after the cleaning process, which may be conducted after soldering.
Otherwise, the coating film may be damaged.
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.
Metal (Oxide) Film Resistors
Withstand pulse limit power is calculated by the next
method.
PP=KáPáT/t
VP=ÃKáPáRáT/t
Reference to the right about a fixed number of
VP max.
nPulse Characteristics (Usual)
PP:Pulse limit power (W)
VP:Pulse limit voltage (V)
t:Pulse continuous time (s)
T :Period (s)
VR:Rated voltage (V)
P :Rated power (W)
R :Resistance value (W)
Vp max.:Max. pulse limit voltage (V)
ERG(X)12S 0.5 600
ERG(X) 1S 0.5 600
ERG(X) 2S 0.5 700
ERG(X) 3S 0.5 700
ERG(X) 5S 0.5 1000
(Data for Refference)
Type K Vp max. (V)
lT>1(s) ®T=1(s)
lT/t>100 ®T/t=100
lPP<P ®P stands for PP
(VP<VR®VR stands for VP)
lAdded voltage<Vp max.
lPP or VP is referent value
Conditions: Pulse added time=1000 h
Resistance change=±5 %
Room temperature
nPulse Characteristics (Inrush)
[Conditions]
Resistance change<±5 % with pulse 1000 cycles as like the figure. (Refference Only)
1) Added power and added voltage are within the lower teritory of this graph.
2) Added in normal temperature and humidity.
[Waveform]
t
T
P
P
(V
P
)
P
t 10s
P: Added power
t : Added time
1100 m10 m1m100 µ10 µ1µ
1
10
100 5S
12S
1S
2S
3S
1k
10 k
Added Time (s)
Added Power (W)
ERX-S Type (0.2
W
min.)
1100 m10 m1m100 µ10 µ1µ
1
10
100 5S
12S
1S
2S
3S
1k
10 k ERG-S Type
Added Time (s)
Added Power (W)
– ER3 –
Caution for Safety
(Common precautions for Fixed Resistors)
¥ When using our products, no matter what sort of equipment they might be used for, be sure to make a written
agreement on the specifications with us in advance. The design and specifications in this catalog are subject
to change without prior notice.
¥ Do not use the products beyond the specifications described in this catalog.
¥ This catalog explains the quality and performance of the products as individual components. Before use, check
and evaluate their operations when installed in your products.
¥ Install the following systems for a failsafe design to ensure safety if these products are to be used in equipment
where a defect in these products may cause the loss of human life or other significant damage, such as damage to
vehicles (automobile, train, vessel), traffic lights, medical equipment, aerospace equipment, electric heating
appliances, combustion/gas equipment, rotating equipment, and disaster/crime prevention equipment.
] Systems equipped with a protection circuit and a protection device
] Systems equipped with a redundant circuit or other system to prevent an unsafe status in the event of a single fault
(1) Precautions for use
¥ These products are designed and manufactured for general purpose and standard use in general electronic
equip ment (e.g. AV equipment, home electric appliances, office equipment, information and communication
equipment)
¥ These products are not intended for use in the following special conditions. Before using the products,
carefully check the effects on their quality and performance, and determine whether or not they can be used.
1. In liquid, such as water, oil, chemicals, or organic solvent
2. In direct sunlight, outdoors, or in dust
3. In salty air or air with a high concentration of corrosive gas, such as Cl2, H2S, NH3, SO2, or NO2
4. In an environment where strong static electricity or electromagnetic waves exist
5. In an environment where these products cause dew condensation
6. Sealing or coating of these products or a printed circuit board on which these products are mounted, with
resin or other materials
¥ These products generate Joule heat when energized. Carefully position these products so that their heat will
not affect the other components.
¥ Carefully position these products so that their temperatures will not exceed the category temperature range due
to the effects of neighboring heat-generating components. Do not mount or place heat-generating components
or inflammables, such as vinyl-coated wires, near these products .
¥ Note that non-cleaning solder, halogen-based highly active flux, or water-soluble flux may deteriorate the
perfor mance or reliability of the products.
¥ Carefully select a flux cleaning agent for use after soldering. An unsuitable agent may deteriorate the performance
or reliability. In particular, when using water or a water-soluble cleaning agent, be careful not to leave water
residues. Otherwise, the insulation performance may be deteriorated.
(2) Precautions for storage
The performance of these products, including the solderability, is guaranteed for a year from the date of arrival
at your company, provided that they remain packed as they were when delivered and stored at a temperature
of 5 ¡C to 35 ¡C and a relative humidity of 45 % to 85 %.
Even within the above guarantee periods, do not store these products in the following conditions. Otherwise,
their electrical performance and/or solderability may be deteriorated, and the packaging materials (e.g. taping
materials) may be deformed or deteriorated, resulting in mounting failures.
1. In salty air or in air with a high concentration of corrosive gas, such as Cl2, H2S, NH3, SO2, or NO2
2. In direct sunlight
<Package markings>
Package markings include the product number, quantity, and country of origin.
In principle, the country of origin should be indicated in English.