Using UL 94 V-0 approved coating for flame retardant type
IEC 60115-2, JIS C 5201-2
■
Explanation of Part Numbers
1
2
3
4
5
6
7
8
9
10
11
E
R
D
S
1
T
J
1
0
3
T
Product
Code
Carbon
Film
Resistors
Power Rating
at 70
°C
Amb.
0.5 W
S1
0.25 W
S2
0.25 W
25
Special Feature and/or
Cut & Formed Style (Type)
T
V, FV
F
Standard (Straight leads)
Radial formed (S1, 25)
Flame-retardant
J
0
Resistance
Tolerance
±5
%
Jumper
Resistance Value
The first two digits are
significant figures of
resistance and the third
one denotes number of
zeros following.
Decimal point expres-
sed by R as 4.7 = 4R7.
(*Nil for Jumper)
Suffix for Packaging and
/or Cut & Formed Leads
Nil
T
V
P
Standard bulk
packing
Standard taped
box (26 mm axial
or Radial)
Standard taped
& box (52 mm axial)
Lead formed
Flame retardant
■
Construction
Primary coating
Lead wire
Spiralling
■
Dimensions in mm (not to scale)
H
L
H
fD
1st significant figure.
2nd significant figure.
Multiplier
fd
Carbon film
(Metal film for 4.3
or less)
Insulative
coating
Standard:
Epoxy resin
Flame retardant
Silicone resin
(UL94V-0
approved)
Tolerance
See Page ER131 for color code indication
Standard Quantity : 2000 pcs.
Dimensions (mm)
Type
Mass
(Weight)
[mg/pc.]
L
ERDS1T
ERDS1F
ERDS2T
ERDS2F
+0.65
fD
+0.50
fd
±0.05
H
20 min.
20 min.
20 min.
High thermal
conductive ceramic
core
6.35
–0.35
2.30
–0.30
0.60
3.20
±0.20
228
107
228
1.70
–0.10
+0.20
0.45
±0.05
End cap
Marking
ERD25T
ERD25F
6.35
–0.35
2.30
–0.30
0.60
+0.65
+0.50
±0.05
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.
Feb. 2006
Discontinued
■
Ratings
Power
Rating
at 70 °C
(W)
Limiting
Element
Voltage
(Maximum
(1)
RCWV)
(V)
Carbon Film Resistors
Type
Maximum
Dielectric
Maximum
Standard Resistance
Intermittent
Overload
Withstanding
(2)
Resistance Tolerance
Overload
(3)
Voltage
Voltage
(%)
Value
Voltage
(VAC)
(V)
(V)
500
Resistance
Range
( )
min.
max.
3.3 M
ERDS1T
ERDS1F
(Flame Retardant)
ERDS2T
ERDS2F
(Flame Retardant)
ERDS2T0
ERD25T
ERD25F
(Flame Retardant)
ERD25T0
0.25
300
600
750
0.25
250
500
750
0.5
300
600
750
E24
350
300
E24
200
±5(J)
1
1 M
2.2 M
±5(J)
1
1 M
Jumper
Rated Current : 2 A,
500
Resistance : < 50 m
3.3 M
E24
350
±5(J)
1
1 M
Resistance : < 50 m
Jumper
Rated Current : 2 A,
(1) Rated Voltage= Power Rating Resistance Value or Limiting Element Voltage (max. RCWV), whichever is less.
(RCWV: Rated Continuous working Voltage).
(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 Power Rating (IOTV=3 Power Rating for ERDS2 type) or max. Intermittent Overload Voltage
listed above whichever less.
Rated Load (%)
Power Derating Curve
For resistors operated in ambient temperatures above
70 °C, power rating shall be derated in accordance
with the figure on the right.
120
100
80
60
40
20
–55
°C
70
°C
155
°C
0
–60 –40 –20 0 20 40 60 80 100 120 140 160 180
Ambient Temperature (°C)
■
Performance Specifications
Characteristics
Specifications
Test Methods
Resistance Value range
ERDS2
4.3
or less
to 62 k
to 200 k
to 510 k
or over
ERDS1, 25
4.3
4.7
56 k
470 k
1M
or less
to 51 k
to 430 k
to 910 k
or over
Temperature
coefficient
–6
10 /°C (ppm/°C)
±350
–150 to –350
–150 to –500
–150 to –700
–150 to –1000
T.C.R.
4.7
68 k
220 k
560 k
Resistance value at
room temperature
and room tempera-
ture +100 °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.
Feb. 2006
Discontinued
■
Shape and Packaging
Standard forming
D
H
Carbon Film Resistors
●
Bulk type (Lead forming)
Type
Carbon
Film R
Part Numbers
ERDS2TJ
A
B
B
Std. Qty.
(PCS)
2000
L
3.2±0.2
6.35
–0.35
+0.65
fD
1.7
–0.1
+0.2
P
5.0±0.5
10.0±0.5
H
4.5
–0.5
4.5
–0.5
+1.5
+1.5
d
0.45
0.6
L
d
P
ERD25TJ
ERDS1TJ
2.3
–0.3
+0.5
Radial forming
H
L
d
k
k
j
h
Type
Carbon
Film R
Part Numbers
ERD25VJ
ERD25FVJ
ERDS1VJ
ERDS1FVJ
Std. Qty.
(PCS)
L
fD
H
h
k
j
d
Lead
Insulation
Coating
2000
6.35
–0.35
2.3
–0.3
20 min. 9.5 min. 2.0
+0.65
+0.5
±0.5
6.0
–1.0
+2.0
0.6
Self standing form
D
h
d
L
P
0.8
6.5±1.0
3.5±1.0
Type
Carbon
Film R
Part Numbers
ERD25FJ
ERDS1FJ
P
P
Std. Qty.
(PCS)
2000
L
6.35
–0.35
+0.65
fD
2.3
–0.3
+0.5
P
10.0±1.5
h
11.5±1.0
d
0.65
●
Axial taping type
6±1
3.2 min.
fd
L
0.5 max.
P
0.5 max.
fD
Shape
1
2
3
4
L
max.
3.4
3.4
6.5
6.5
fD
max.
1.9
1.9
2.5
2.5
fd
0.45
0.45
0.6
0.6
P
±0.3
5.0
5.0
5.0
5.0
W
26
+1
–0
52±1
+1
26
– 0
52±1
W
0
41.5 max.
64.5±0.5
41.5 max.
64.5±0.5
0
L
1
0.8 max.
W
W
0
L
2
1 max.
P
|L
1–
L
2
|
<1.0
Cumulative 250±2 mm by 50 pitch
Flat box
Packaging Shape
26 mm
Axial
taping
52 mm
Axial
taping
26 mm
Axial
taping
1
2
Type
Carbon
Film R
Carbon
Film R
Carbon
Film R
Part Numbers
ERDS2TJ
ERDS2FJ
ERDS2TJ
ERDS2FJ
ERD25TJ
ERD25FJ
ERDS1TJ
ERDS1FJ
ERD25TJ
T
T
V
V
T
T
T
T
V
V
V
V
Std. Qty.
(pcs./box)
5000
5000
Size of box
a b c (mm)
52 85 255
78 85 255
b
Ma
rkin
g
c
3
4000
52 95 255
a
52 mm
Axial
taping
4
Carbon
Film R
ERD25FJ
ERDS1TJ
ERDS1FJ
2000
78 58 255
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.
Feb. 2006
Discontinued
●
Radial Taping type
Radial Taping
Lead Insulation
Coating
F
0
F
L
P
1
H
0
P
A
P
2
g
H
1
h
h
Carbon Film Resistors
Type
fD
fd
W
2
Part Numbers
Std. Qty.
(pcs.)
l
P
0
fD
0
W
Carbon
Film R
t
ERDS1VJ
ERD25VJ
ERDS1FVJ
ERD25FVJ
W
0
W
1
T
T
T
T
2000
Dimensions (mm)
P
P
0
P
1
P
2
F
F
0
W
12.7±1.0
12.7±0.3
3.85±0.70
6.35±1.00
5.0±0.5
2.5±0.5
18.0±0.5
W
0
W
1
W
2
H
1
H
0
fD
0
L
Dimensions (mm)
5 min.
9.0±0.5
3 max.
32 max.
16.0±0.5
4.0±0.2
11 max.
k
t
g
h
A
fD
fd
Dimensions (mm)
0 max.
0.7±0.2
0±2.5 °
0±2
6.35
+0.65
–0.35
+0.5
2.3
–0.3
0.60±0.05
Radial Taping for small type
P
2
A
fd
H
0
P
1
F
W
2
P
h
fD
Type
Carbon Film R
Part Numbers
ERDS2TYJ
T
Std. Qty.
(pcs.)
2000
W
0
W
1
W
l
P
0
fD
0
Dimensions (mm)
P
P
0
P
1
P
2
F
W
12.7±1.0
12.7±0.3
3.85±0.70
6.35±1.00
5.0±0.5
18.0±0.5
W
0
W
1
W
2
H
0
fD
0
k
Dimensions (mm)
5 min.
9.0±0.5
3 max.
+1.0
19.0
–0.5
4.0±0.2
0 max.
h
t
A
fD
fd
t
Dimensions (mm)
0±2
0.7±0.2
3.2±0.2
1.7
+0.2
–0.1
0.45±0.05
130
Indication
45
320
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.
Feb. 2006
Discontinued
Safety Precautions
Carbon Film Resistors
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. Keep the rated power and ambient temperature within the specified derating curve.
* When positioning and mounting Carbon Film Resistors (hereafter called the resistors), make allowance for the effect
of heat generated through close contact between the resistors and neigh bor ing com po nents and for the
temperature rise of adjacent heat-generating components.
2. If a transient load (heavy load in a short time) like a pulse is expected to be applied, check and evaluate the operations
of the resistors when installed in your products before use.
When applying pulses to the resistors, keep the pulse peak within the rated voltage.
3. When the resistors' protective coatings are chipped, flawed, or removed, the characteristics of the resistors may be
impaired. Take special care not to apply mechanical shock during automatic mounting or cause damage during
handling of the boards with the resistors mounted.
4. Ultrasonic cleaning may cut the lead wire due to resonance. Try and check it before use.
5. Flame-retardant type
1)Take special care in handling the flame-retardant type because it is covered with a special coating and is therefore
by more susceptible to external shock and solvent damage than other regular types of the resistors.
2)The external coating used for the flame-retardant type is not resistant to solvent. Take great care in using solvent.
If problems are anticipated, then take appropriate preventive measures, such as mounting the resistors after
solvent is used.
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.
