Metal (Oxide) Film Resistors
Discontinued
ERG(X)S type (Small size)
(0.5 W, 1 W, 2 W, 3 W, 5 W)
ERG(X)F type (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
RoHS compliant
Explanation of part numbers
Ex.1 : ERX type
1
2
3
E
R
X
Product code
Metal film
resistors
4
Power rating
1
2
3
0.5 W
1W
2W
3W
5
5W
12
5
6
7
8
9
10
11
12
13
2
S
Z
J
W
1
R
0
E
Style · Specification
Small size
S
0.5 W to 5 W
Small size Anti-heat
conducting type
F
(Fe lead wire)
1 W to 5 W
“Z” is added according to resistance.
Part No.
ERX◻◻SZ
ERX◻◻S
±5 ％
0.10 to 0.18
0.20 to 9.1
±2 ％
0.10 to 0.91
1.0 to 9.1
ERX1S
±5 ％
0.10 to 0.18
0.20 to 9.1
ERX1F
±2 ％
0.10 to 0.91
1.0 to 9.1
ERX2S
±5 ％
0.10 to 0.20
0.22 to 9.1
ERX2F
±2 ％
0.10 to 0.91
1.0 to 9.1
ERX3S
±5 ％
0.10 to 0.20
0.22 to 9.1
ERX3F
±2 ％
0.10 to 0.91
1.0 to 9.1
ERX5S
±5 ％
ERX5F
±2 ％
ERX12S
The first two digits are significant
figures of resistance and the third
one denotes number of zeros
following. Decimal point is
expressed by (Ex.) 1R0 : 1.0 Ω
The matrix of forming and packaging is as shown in the table below.
Resistance value range(Ω)
Resistance
tolerance
Resistance value
Resistance tolerance
Code Tolerance
J
±5 ％
Q
±2 ％
0.33 to 9.1
-
Code
Forming / Packaging
Forming & taping matrix
12S 1S 2S 3S 5S 1F 2F 3F 5F
◻···◻
Straight lead wire type
〇 〇 〇 〇 〇 〇 〇 〇 〇
◻···P
Cut & Forming type
〇 〇 〇 〇 〇
Ｕ···V
Axial taping type (Stand off)
◻···E
Radial taping type (E type)
Ｓ···E
Radial taping type (SE type)
◻···V
Axial taping type (Straight lead) 〇 〇 〇 〇
W···E
Radial taping type (WE type) 〇 〇 〇 〇
〇 〇 〇
〇 〇 〇
〇 〇 〇
◻···Ｈ Cut & Forming type
〇 〇 〇 〇
〇 〇 〇
1.0 to 9.1
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
4
0.5 W
1
1W
2
2W
3
3W
5
5W
6
7
8
9
10
11
12
2
S
J
W
1
0
3
E
Style · Specification
Power rating
12
5
S
Small size
0.5 W to 5 W
F
Small size Anti-heat
conducting type
(Fe lead wire)
1 W to 5 W
Resistance tolerance
Code Tolerance
J
±5 ％
Q
±2 ％
Resistance value
Same as above.
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 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.
1-Oct-21
Metal (Oxide) Film Resistors
Construction
Dimensions in mm (not to scale)
High reliable metal oxide film（ERG）
High reliable metal plating film（ERX）
ℓ
Lead wire
L
ℓ
S type ：Cu wire
φD
φd
F type ：Fe wire
Unit : mm
Ceramic core (High
Part No.
thermal conductivity)
Spiralling
L
ERG(X)12S
turns
Marking
6.35
ERG(X)1S
9.00
ERG(X)1F
ERG(X)2S
12.00
ERG(X)2F
Flame and solvent retardant
ERG(X)3S
15.00
ERG(X)3F
ERG(X)5S
End cap
Mass
(Weight)
(g/ pc)
Dimensions
24.00
ERG(X)5F
øD
+0.65
2.3
- 0.35
+1.50
2.8
- 1.00
+1.50
4.0
- 1.00
±1.50
5.5
±1.50
8.0
ℓ
+0.5
- 0.3
±0.5
±1.0
±1.0
±1.0
30.0
30.0
30.0
38.0
38.0
ød
±3.0
0.65
0.65
±3.0
0.80
±3.0
0.80
±3.0
0.80
±3.0
0.80
±0.05
0.26
±0.05
±0.05
±0.05
±0.05
±0.05
0.33
0.66
1.47
3.54
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
Limiting
element
Maximum
overload
voltage
(V)
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
Power rating
(70 ℃)
(W)
*1
*2
Maximum
intermittent
Dielectric
withstanding
voltage
(V)
*3
overload voltage
(V)
Resistance
Resistance
range*5
(Ω)
*4
tolerance
(%)
min.*6
G (±2)
J (±5)
G (±2)
J (±5)
G (±2)
J (±5)
G (±2)
J (±5)
G (±2)
J (±5)
1
0.2
1
0.2
1
0.22
1
0.22
1
0.33
T.C.R.
-6
(×10 /K)
max.
22 k
47 k
68 k
100 k
100 k
100 k
100 k
100 k
100 k
100 k
Standard
resistance
value
±350
Ｅ24
±350
Ｅ24
±350
Ｅ24
±300
Ｅ24
±200
Ｅ24
*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.
*4: Resistance tolerance is of use besides range listed, please inquire.
*5: Resistance Range type ERG : ≧ 10 Ω , type ERX : ≦ 9.1 Ω
*6: As for the low resistance value range, "Z" is given to the part number. (Refer to the explanation of part numbers.)
✽ Z type is non standard resistance values.
Code
Part No.
Res.tol.
Part No.
Res.tol.
Resistance value
range(Ω)
0.1 to 0.91
2S
±2 ％
±5 ％
0.1 to 0.18
2F
±5 ％
0.1 to 0.2
1S
±2 ％
0.1 to 0.91
3S
±2 ％
0.1 to 0.91
1F
±5 ％
0.1 to 0.18
3F
±5 ％
0.1 to 0.2
120
Rated load (%)
Power derating curve
For resistors operated in ambient temperatures
above 70 ℃, power rating shall be derated in
accordance with the figure on the right.
Code
±2 ％
12S
Z
Resistance value
range(Ω)
100
Z
0.1 to 0.91
70 ℃
-55 ℃
80
60
ERG(X)12S
40
20
0
130 ℃
-60 -40 -20
0
20
40 60
235 ℃
80 100 120 140 160 180 200 220 240
Ambient temperature (℃)
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.
1-Oct-21
Metal (Oxide) Film Resistors
Taped & Box
Stand-off taped & Box
ERG(X)◻◻S◻◻◻◻V
ERG(X)◻◻S◻U◻◻◻V
W1
P
P
φd
φd
6.0±0.5
H
H
crush width 0.8 mm (1 W)
1.1 mm (2 W, 3 W)
W
W
b
Marking
c
a
Unit : mm
Standard
quantity
(pcs/box)
Part No.
ERG(X)12S◻◻◻◻◻V
ERG(X) 1S◻◻◻◻◻V
ERG(X) 1S◻U◻◻◻V
ERG(X) 2S◻◻◻◻◻V
p
2,000
5.0
2,000
5.0
1,000
ERG(X) 2S◻U◻◻◻V
ERG(X) 3S◻◻◻◻◻V
5.0
1,000
ERG(X) 3S◻U◻◻◻V
Box
Taping dimensions
10.0
50×P
±0.3
±0.3
±0.3
±0.5
250
250
250
500
±2
±2
±2
±2
W
52.0
52.0
52.0
74.0
W1
H
±1.5
-
-
12.0
0
- 2.0
1.20
-
±1.5
15.5
23.0
+0.15
- 2.0
1.40
+0.15
- 2.0
1.40
c
85
80
255
0.65
±0.05
85
80
255
0.80
±0.05
85
80
255
0
0
b
0
0
-
±2.0
0.65
-
-
±1.5
a
±0.05
ød
+0.15
0.80
±0.05
105 100 325
0
Cut & Formed type
ERG(X)◻◻S◻◻◻◻P
φ0.65±0.05 (0.5 W, 1 W)
φ0.80±0.05 (2 W, 3 W, 5 W)
Part No.
S
L
φD
h
Upper surface
h2 of PW board
0.8 (0.5 W, 1 W)
1.2±0.2 (0.5 W, 1 W)
1.0 (2 W, 3 W, 5 W)
Unit : mm
Standard
quantity
(pcs/box)
Dimensions
L
øD
+0.65
ERG(X)12S◻◻◻◻◻P
1,000
6.35
ERG(X)1S◻◻◻◻◻P
1,000
9.00
ERG(X)2S◻◻◻◻◻P
1,000
12.00
ERG(X)3S◻◻◻◻◻P
1,000
15.00
ERG(X)5S◻◻◻◻◻P
500
24.00
Part No.
Standard
quantity
(pcs/box)
- 0.35
+1.50
- 1.00
+1.50
- 1.00
±1.50
±1.50
2.3
2.8
4.0
5.5
8.0
+0.5
- 0.3
±0.5
±1.0
±1.0
±1.0
S
10.0
12.5
15.0
20.0
30.0
±1.5
±1.5
±1.5
±2.0
±2.0
h
4.0
4.0
6.0
6.5
7.5
±1.5
±1.5
±1.5
±1.5
±1.5
1.4±0.2 (2 W, 3 W, 5 W)
ERG(X)◻F◻◻◻◻H
S
L
φD
φ0.80±0.05
h
Upper surface
h2
1.0
of PW board
h2
4.0
4.0
4.0
4.0
4.0
±1.5
±1.5
±1.5
±1.5
±1.5
Unit : mm
Dimensions
L
øD
+1.5
ERG(X)1F◻◻◻◻H
1,000
9.0
ERG(X)2F◻◻◻◻H
1,000
12.0
ERG(X)3F◻◻◻◻H
1,000
15.0
±1.5
5.5
ERG(X)5F◻◻◻◻H
500
24.0
±1.5
8.0
- 1.0
+1.5
- 1.0
2.8
4.0
±0.5
±1.0
±1.0
±1.0
S
12.5
15.0
20.0
30.0
±1.5
±1.5
±2.0
±2.0
h
8
8
10
10
±2
±2
±2
±2
h2
4.0
5.0
5.0
5.0
±1.5
±1.5
±1.5
±1.5
1.4±0.2
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.
1-Oct-21
Metal (Oxide) Film Resistors Packaging Methods
For panasert automatic insertion machine radial taped & Box
ERG(X)◻◻S◻◻◻◻E (12S, 1S, 2S)
P
P2
φD
P1
W1
H0
F
H1
A
Insulated Lead
W
φd
φD0
P0
Unit : mm
Dimensions
P
12.7±1.0
W
18.0±0.5
P0
12.7±0.3
W1
9.0±0.5
P1
3.85±0.70
P2
6.35±1.00
H0
16.0±0.5
F
5.0±0.8
øD0
4.0±0.2
H1
12S
32 max.
1S
32 max.
2S
12S
6.35
1S
9.0
A
38 max.
2S
12.0
+0.65
12S
- 0.35
+1.5
øD
- 1.0
+1.5
- 1.0
2.3
+0.5
- 0.3
1S
2.8±0.5
2S
4.0±1.0
0.65±0.05
ød
● Radial Tape Package Specifications
b
Marking
Unit : mm
Part No.
Standard
quantity
(pcs/box)
a
b
c
ERG(X)12S◻◻◻◻◻E
2,000
46
130
335
ERG(X) 1S◻◻◻◻◻E
2,000
46
130
335
ERG(X) 2S◻◻◻◻◻E
1,000
49
100
335
Dimensions
c
a
For Panasert Au to mat ic Insertion Machine Radial Taped & Box
ERG(X)◻◻S◻W◻◻◻E (12S, 1S, 2S, 3S)
Dimensions (mm)
P1
P
12.7±1.0
1S, 2S, 3S
30.0±1.0
12S
6.35
12S
12.7±0.3
1S
9.0
1S, 2S, 3S
15.0±0.3
2S
12.0
12S
6.35±1.00
3S
15.0±1.5
1S, 2S, 3S
7.5±1.0
12S
11.2 max.
12S
3.85±0.70
1S
14.0 max.
1S, 2S, 3S
3.75±0.50
2S
17.0 max.
12S
5.0±0.5
3S
21.0 max.
1S, 2S, 3S
7.5±0.8
12S
W
12S, 1S, 2S, 3S
18.0±0.5
1S
2.8±0.5
W1
12S, 1S, 2S, 3S
9.0±0.5
2S
4.0±1.0
12S
16.0±0.5
3S
5.5±1.0
1S, 2S
18.0±1.0
12S
ø0.65±0.05
3S
19.0±1.0
1S, 2S, 3S
ø0.80±0.05
P
P0
B
φD
A
H1
P1
F
P2
H0
P2
W
W1
F
φd
H0
P0
Dimensions (mm)
12S
φD0
H1
12S
6.5
1S, 2S
6.5
3S
8.0
+0.6
øD0
A
B
øD
ød
12S, 1S, 2S, 3S
4.0±0.2
2.3
+0.65
- 0.35
+1.5
- 1.0
+1.5
- 1.0
+0.5
- 0.3
0
+1.0
0
+1.0
0
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.
1-Oct-21
Metal (Oxide) Film Resistors Packaging Methods
For Panasert Au to mat ic Insertion Machine Radial Taped & Box
ERG(X)◻F◻S◻◻◻E (1F, 2F, 3F)
Dimensions (mm)
P
P1
A
H2
φD
B
H1
F
H0
P2
H2
P0
15.0±0.3
φ D0
P1
7.5±1.0
P2
3.75±0.50
F
7.5±0.8
W
18.0±0.5
W1
9.0±0.5
W
φD0
30.0±1.0
H0
W1
φd
Dimensions (mm)
P
H1
P0
16.0
0
7.0
2F
8.0
3F
9.0
4.0±0.2
A
B
+1.0
1F
1.0±0.3
+1.0
0
+1.0
0
+1.0
φD
9.0
2F
12.0
3F
15.0±1.5
1F
14.0 max.
2F
17.0 max.
3F
21.0 max.
1F
2.8±0.5
2F
4.0±1.0
3F
0
+1.5
1F
- 1.0
+1.5
- 1.0
5.5±1.0
0.80±0.05
φd
● Radial Tape Package Specifications
Part No.
Standard
Quantity
(pcs/box)
a
b
c
ERG(X)12S◻W◻◻◻E
2,000
46
145
325
1,000
49
150
317
500
49
150
317
500
49
190
315
ERG(X) 1S◻W◻◻◻E
ERG(X) 1F◻S◻◻◻E
ERG(X) 2S◻W◻◻◻E
b
Marking
ERG(X) 2F◻S◻◻◻E
a
c
ERG(X) 3F◻S◻◻◻E
Dimensions (mm)
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.
1-Oct-21
Metal (Oxide) Film Resistors
Hot-spot Temperature (for Reference)
The temperature of the resistor body increases with the curve below. A touching vinyl wire may cause damages to resistor element.
Do not place vinyl wires around resistors and be sure to consider where the resistors will be placed.
Ⓐ
Measuring position
+250
+250
+200
+200
+150
1S-A
+100
1S-B
12S-A
0
25
50
75
2F-A
2S-A
+150
2S-B
+100
2F-B
12S-B
+50
0
Temperatur△T (°C)
Temperatur△T (°C)
Ⓑ
+50
0
100
0
25
Rated Load (％)
50
75
+250
+250
3F-A
3S-A
5F-A
+200
5S-A
Temperatur△T (°C)
Temperatur△T (°C)
+200
+150
+150
3S-B
5S-B
+100
+100
3F-B
5F-B
+50
+50
0
100
Rated Load (％)
0
25
50
75
100
Rated Load (％)
0
0
25
50
75
100
Rated Load (％)
Safety Precautions
The following are precautions for individual products. Please also refer to the common precautions for Fixed Resistors in 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 steadystate 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.
1-Oct-21
Metal (Oxide) Film Resistors
〔Data for Reference〕
Pulse Char ac ter is tics (Usual)
PP
VP
PP
(VP)
t
T
: Pulse limit power (W)
: Pulse limit voltage (V)
t
: Pulse continuous time (s)
T
: Period (s)
VR
: Rated voltage (V)
P
: Rated power (W)
R
: Resistance value (Ω)
Vp max.
: Max. pulse limit voltage (V)
Withstand pulse limit power is calculated by the next method.
PP
VP
= K · P · T/t
= √ K · P · R · T/t
Reference to the right about a fixed number of Vp max.
Part No.
K
Vpmax. (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
● T>1(s) → T=1(s)
● T/t>100 → T/t =100
● PP
工商网监
湘ICP备2023018690号
