Carbon Film Resistors
Carbon Film Re sis tors
Type:
(0.5 W)
ERDS1
(0.25 W)
ERDS2
(0.25 W)
ERD25
Features
....................
Reliability High reliability by using carbon lm
....
Automatic insertion Taping style for automatic inserting machines
......................
Marking 4 color code marking
........
Flame Retardant Using UL 94 V-0 approved coating for ame retardant type
...
Reference Standard 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 Power Rating Special Feature and/or Resistance Resistance Value Suffix for Packaging and
Code at 70 C Amb. Cut & Formed Style (Type) Tolerance /or Cut & Formed Leads
The first two digits are
Carbon significant figures of
S1 0.5 W T Standard (Straight leads) J 5% Standard bulk
Nil
resistance and the third
Film packing
S2 0.25 W V, FV Radial formed (S1, 25) 0 Jumper
one denotes number of
Resistors
Standard taped
25 0.25 W F Flame-retardant
zeros following.
box (26 mm axial
T
Decimal point expres-
or Radial)
sed by R as 4.7= 4R7.
Standard taped
(*Nil for Jumper)
V
& box (52 mm axial)
Lead formed
P
Flame retardant
Construction Dimensions in mm (not to scale)
HL H fD
Primary coating
Lead wire
1st significant figure.
fd
Spiralling
2nd significant figure.
Multiplier
Carbon film Tolerance
Insulative
(Metal film for 4.3 or less)
coating
See Page ER131 for color code indication
Standard: Standard Quantity : 2000 pcs.
Epoxy resin
Mass
Dimensions (mm)
Type (Weight)
Flame retardant
Silicone resin L fD fdH
[mg/pc.]
(UL94V-0
ERDS1T +0.65 +0.50 0.05
approved)
6.350.35 2.30 0.30 0.60 20 min. 228
High thermal
ERDS1F
conductive ceramic
core ERDS2T 0.20 +0.20 0.05
3.20 1.70 0.10 0.45 20 min.
107
ERDS2F
ERD25T +0.65 +0.50 0.05
End cap Marking
6.350.35 2.30 0.30 0.60 20 min.
228
ERD25F
Design and speci cations are each subject to change without notice. Ask factory for the current technical speci cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Feb. 2006Carbon Film Resistors
Ratings
Limiting
Maximum
Resistance
Power Element Maximum Dielectric
Intermittent Standard Resistance
Range
Rating Voltage Overload Withstanding
Type (2) Overload Resistance Tolerance
()
at 70 C (Maximum Voltage (3) Voltage
(1) Voltage Value (%)
(W) RCWV) (V) (VAC)
(V)
min. max.
(V)
ERDS1T 500 3.3 M
0.5 300 600 750 E24 5(J) 1
ERDS1F
350 1 M
(Flame Retardant)
ERDS2T 300 2.2 M
0.25 250 500 750 E24 5(J) 1
ERDS2F
200 1 M
(Flame Retardant)
ERDS2T0 Jumper Rated Current : 2 A, Resistance : < 50 m
ERD25T 500 3.3 M
0.25 300 600 750 E24 5(J) 1
ERD25F
350 1 M
(Flame Retardant)
ERD25T0 Jumper Rated Current : 2 A, Resistance : < 50 m
(1) Rated Voltage= Power RatingResistance 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=2.5Power Rating or max. Overload Voltage list ed above which ev er less.
(3) Intermittent Overload Test Voltage (IOTV) shall be determined from IOTV=4Power Rating (IOTV=3Power Rating for ERDS2 type) or max. Intermittent Overload Voltage
list ed above which ev er less.
120
Power Derating Curve
55 C 70 C
For resistors operated in ambient temperatures above
100
70 C, power rating shall be derated in accordance
80
with the gure on the right.
60
40
20
155 C
0
60 40 20 0 20 40 60 80 100 120 140 160 180
Ambient Temperature (C)
Performance Speci cations
Characteristics Speci cations Test Methods
Temperature
Resistance Value range
coef cient
6
ERDS2 ERDS1, 25
10 /C (ppm/C)
Resistance value at
4.3 or less 4.3 or less 350
room temperature
T.C.R.
4.7 to 62 k 4.7 to 51 k 150 to 350
and room tem pera-
68 k to 200 k 56 k to 430 k 150 to 500
ture +100 C
220 k to 510 k 470 k to 910 k 150 to 700
560 k or over 1 M or over 150 to 1000
Design and speci cations are each subject to change without notice. Ask factory for the current technical speci cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Feb. 2006
Rated Load (%)