AOB0000C27

Metal Film Fusing Resistors
Metal Film Fusing Resistors
Type: ERQA
ERQZ
(0.25 W, 0.5 W, 1 W, 2 W coating type )
Features
● Accurate
fusing
size and lightweight
● Uniform quality, consistent performance and reliability
● Flame retardant, utilizing exclusive silicon insulation material
● Reference Standard
EIAJ RC-2125
● RoHS compliant
● Small
Explanation of Part Numbers
1
2
3
E
R
Q
Product Code
Metal Film
Fusing Resistors
Power Rating at
70 °C amb.
0.25 W
14
0.5 W
12
1
2
1W
2W
4
5
6
7
8
9
10
11
2
A
B
J
1
0
1
Special Feature
A
Standard
Z Less than 2 Ω
AB
Z
Standard
Less than 2 Ω
Resistance
Tolerance
J
±5 %
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 R as
2.2=2R2.
12
Suffix for Packaging and/or
Cut & Formed Leads
Nil
P
P···S
E
W···E
Std.bulk packing
P type cut & formed
P···S type cut & formed
Radial Taped & Box
Radial Taped & Box
The above example shows a standard Metal Film Fusing Resistors, 2 W power rating, resistance value of 100 Ω, tolerance of ±5 %, and package of
standard bulk packing.
Construction
Metal alloy film
Lead wire
Spiraling turns
Insulative lacquer
Ceramic core
Marking
End cap
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 Film Fusing Resistors
Ratings
Part No.
ERQ14Z
ERQ14A
ERQ12Z
ERQ12A
ERQ1Z
ERQ1AB
ERQ2Z
ERQ2AB
Power
Rating
at 70°C
(W)
Maximum
Dielectric
Open Maximum With- Resistance
Circuit Overload standing Tolerance
(1)
Voltage
(%)
Voltage Voltage
(V)
(V)
0.25
200
0.5
250
1
250
2
250
3 times of
rated
(2)
voltage
AC 350
J (± 5)
AC 350
J (± 5)
AC 600
J (± 5)
AC 1000
J (± 5)
Resistance
Range (Ω)
min.
max.
1.0
2.0
1.0
2.0
1.0
2.0
1.0
2.0
1.8
470
1.8
560
1.8
560
1.8
560
Standard Marking
Mass
T.C.R.
Resistance Method (Weight)
-6
(×10 /°C)
Values
on Body [g/pc.]
Color
code
Stamp
Color code
0.24
±350
E24
±350
E24
±350
E24
Stamp
0.64
±350
E24
Stamp
1.54
0.32
(1) Maximum Open Circuit Voltage: Referring to the maximum value of the voltage applied between terminals of the resistor when the resistor is
opened in an electric circuit 1000 times power rating or voltage specified above whichever less is regarded as the maximum open circuit voltage.
(2) Rated Continuous Working Voltage (RCWV) shall be determined from RCWV=√Power Rating × Resistance Value
120
100
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.
–30 °C
70 °C
ERQ1
ERQ2
80
60
40
ERQ14
ERQ12
150 °C
20
0
–60 –40 –20 0
130 °C
20 40 60 80 100 120 140 160 180 200 220
Ambient temperature (°C)
Performance Specifications
Characteristics
Specifications
Rated
Power
Res. Value
(Ω)
Test Methods
Limit
Open within
30 seconds at
30 times the
rated power
0.25 W
0.5 W
1 to 1.8
Fusing
Characteristics
1W
2W
Open within
30 seconds at
25 times the
rated power
0.25 W
0.5 W
1W
2W
2 to 9.1
Open within
30 seconds at
16 times the
rated power
0.25 W
10 to 470
0.5 W
1W
2W
The test potential shall be preadjusted using a dummy
re sis tor and then be subjected to the test specimens.
The potential shall be readjusted within two seconds
to reach the exact value of specified current. This test
shall be made under the conditions at 20 °C and 65
% RH (or at a temperature of 5 °C to 35 °C and 45 to
85 % RH, only when any doubt may not be caused),
and the use of sta bi lized pow er source is sug gest ed.
Fus ing time shall be mea sured as the duration un til
the circuit current is decreased to a 1/50 the initial test
current or less.
Open within
30 seconds at
10 to 560 12 times the
rated power
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 Film Fusing Resistors
Dimensions in mm (not to scale)
Dimensions (mm)
Part No.
l
fD
l
fd
L
0D
L
+1.5
–1.0
2.3
0d
k
±0.5
30.0
±0.5
30.0
±1.0
30.0
±1.0
38.0
ERQ14
6.3
ERQ12
9.0 –1.0
+1.5
2.8
ERQ1
12.0 –1.0
+1.5
4.0
ERQ2
15.0
±1.5
5.5
±3.0
0.65
±0.05
±3.0
0.65
±3.0
0.80
±3.0
0.80
±0.05
±0.05
±0.05
Explanation of Marking
Type ERQ14, ERQ12 (0.25 W, 0.5 W)
1st significant
figure
Q Shows Fuse Resistor
2nd significant figure
White color
shows Fuse Resistor
1W
100ΩJ
711
Q
Resistance tolerance
Symbol
Power rating
Manufacturing
Series No.
105
Multipier
Type ERQ1, ERQ2 (1W, 2W)
Date code
(Year, Month, Week)
Resistance value and tolerance
Cut & Formed Type
ERQ□□AJ□□□P
ERQ□□ZJ□□□P
S
fD
4.0±1.0
h
f0.65±0.05
L
0.8
1.2±0.2
3 max.
Part No.
Power Rating
at 70 °C
(W)
Standard
Q’ty/Packing
(pcs.)
Dimensions (mm)
0D
L
+1.5
–1.0
2.3
+1.5
2.8
ERQ14□J□□□P
0.25
2,000
6.3
ERQ12□J□□□P
0.5
2,000
9.0 –1.0
ERQ□ABJP□□□S
ERQ□ZJP□□□S
S
10.0
±0.5
12.5
h
±0.5
S
±1.5
4.0
±1.5
±1.5
4.0
±1.5
fD
1.0
1.4±0.2
4.0±1.5
h
f0.80±0.05
L
3.5 max.
Part No.
Power Rating
at 70 °C
(W)
Standard
Q’ty/Packing
(pcs.)
Dimensions (mm)
0D
L
+1.5
–1.0
4.0
±1.5
5.5
ERQ1□□JP□□□S
1
1,000
12.0
ERQ2□□JP□□□S
2
1,000
15.0
S
15.0
±1.0
20.0
h
±1.0
±1.5
6.0
±1.5
±2.0
6.5
±1.5
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 Film Fusing Resistors
For Panasert Automatic Insertion Machine Radial Taped & Box
ERQ□□AJ□□□E
ERQ□□ZJ□□□E
(14A/14Z, 12A/12Z, 1AB/1Z)
Insulated
Lead
P
P2
H1
A
D
P1
W1
H0
F
W
fd
fD0
P0
Dimensions (mm)
Dimensions (mm)
Dimensions (mm)
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
0D0
4.0±0.2
● Radial
14A/14Z
H1
Dimensions (mm)
12 max.
12A/12Z 15.5 max.
1AB/1Z
Dimensions (mm)
+0.65
–0.35
14A/14Z 6.35
A
19 max.
12A/12Z
9.0+1.5
–1.0
1AB/1Z
12.0+1.5
–1.0
0d
14A/14Z 2.3±0.5
D
12A/12Z 2.8±0.5
1AB/1Z 4.0±1.0
0.65±0.05
Tape Packaging Methods
Dimensions (mm)
a
b
c
Standard Quantity
(pcs./box)
46
130
335
2,000 pcs./box
46
130
335
2,000 pcs./box
49
100
335
1,000 pcs./box
Part Number
b
ERQ14AJ□□□E
ERQ14ZJ□□□E
ERQ12AJ□□□E
ERQ12ZJ□□□E
ERQ1ABJ□□□E
ERQ1ZJ□□□E
Marking
c
a
For Panasert Automatic Insertion Machine Radial Taped & Box
ERQ□□A/ZJW□□□E (14A/14Z, 12A/12Z, 1AB/1Z)
P1
Dimensions (mm)
P
P
B
fD
A
H1
P0
P1
F
H0
P2
W1
P2
W
F
fd
P0
fD0
14A/14Z
12.7±1.0
12A/12Z, 1AB/1Z 30.0±1.0
14A/14Z
H1
12.7±0.3
12A/12Z, 1AB/1Z 15.0±0.3 0D0
14A/14Z
6.35±1.00
12A/12Z, 1AB/1Z
7.5±1.0
14A/14Z
3.85±0.70
A
12A/12Z, 1AB/1Z 3.75±0.50
14A/14Z
5.0+0.6
–0.2
12A/12Z, 1AB/1Z
7.5+0.6
–0.2
W
18.0±0.5
W1
9.0±0.5
H0
Dimensions (mm)
B
0D
14A/14Z
6.5+0.6
0
12A/12Z
6.5+1.0
0
1AB/1Z
6.5+1.0
0
4.0±0.2
14A/14Z
6.35+0.65
–0.35
12A/12Z
9.0+1.5
–1.0
1AB/1Z
12.0+1.5
–1.0
14A/14Z
11.2 max.
12A/12Z
14 max.
1AB/1Z
17 max.
14A/14Z
2.3+0.5
–0.3
12A/12Z
2.8±0.5
14A/14Z
16.0±0.5
1AB/1Z
4.0±1.0
12A/12Z
18.0±1.0
14A/14Z
0.65±0.05
1AB/1Z
18.0±1.0
0d
12A/12Z, 1AB/1Z 0.80±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.
02 Sep. 2014
Metal Film Fusing Resistors
Fusing Characteristics (Constant Voltage Circuit)
This data is for reference only, specifications should be verified in written form with the engineering division.
ERQ14A
200
ERQ12A
200
2.0 to 9.1 (Ω)
2.0 to 9.1 (Ω)
10 to 560 (Ω)
100
100
50
50
Fusing time (s)
Fusing time (s)
10 to 470 (Ω)
30
10
5
1
30
10
5
0
7
9
12
16
20
25
Multiple of the power rating
ERQ1AB
200
1
30
0
9
ERQ2AB
200
2.0 to 9.1 (Ω)
7
10 to 560 (Ω)
100
50
50
Fusing time (s)
Fusing time (s)
30
2.0 to 9.1 (Ω)
10 to 560 (Ω)
100
30
10
5
1
12
16
20
25
Multiple of the power rating
30
10
5
0
7
9
12
16
20
25
Multiple of the power rating
1
30
0
7
9
12
16
20
25
Multiple of the power rating
30
Hot Spot Temperature (for reference)
Temperature rise △T (K)
600
500
2AB
400
Measuring point
1AB
300
12A
200
100
14A
0
0
1
2
3
4
5
6
7
8
Multiple of the power rating
9
10
11
12
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 Film Fusing Resistors
Safety Precautions
The following are precautions for individual products. Please also refer to the common precautions for Fixed Resistors
in this catalog.
1. Checking the fusing conditions
1) Fusing characteristics differ depending on the type, shape, and resistance. Check the fusing conditions before
selecting the type of Metal Film Fusing Resistors (hereafter called the fusing resistor) to be used.
2) Use the fusing resistors under the maximum open circuit voltage. Otherwise, arcing may occur when a voltage
much higher than the rated one is applied in the event of an abnormality in the circuit, or when a high voltage
is applied after fusing.
3) Under abnormal conditions of a constant voltage circuit, a current of about 2 or 3 times the initial abnormal
current passes through, accelerating the speed at which the fusing resistors blows. When using a constant
current circuit, carefully check the conditions because the fusing resistors may not blow in a constant current
circuit.
2. Checking for pulse voltage, impact voltage, and transient voltage
Make sure to evaluate and check the fusing resistors mounted on your product if they are to be mounted on a
circuit that generates an impact voltage, or if there is a possibility that the transient phenomenon (significantly
high voltage applied in a short time) may occur or that a pulse voltage with a high peak voltage may be applied.
Make sure to consult our sales staff before using the fusing resistors under special conditions.
3. Conditions of use in a steady state
Make sure that the load conditions have a sufficient allowance for the power derating curve. The characteristics of
the fusing resistors are set by using a constant voltage circuit.
4. The solvent resistance of the fusing resistors is not assured. If you use a solvent for cleaning after soldering or
other processes, make sure to consult our sales staff before use and per form a prior test and evaluation to
ensure that the solvent will not affect the reliability of the fusing resistors.
(Data for Reference)
Pp (Vp)
Pulse Characteristics (Usual)
t
T
PP
VP
t
T
VR
P
R
Vp max.
:
:
:
:
:
:
:
:
Withstand pulse limit power is calculated by the next
method.
PP = K · P · T/t
VP = √ K · P · R · T/t
Reference to the right about a fixed number of VP max.
Pulse limit power (W)
Pulse limit voltage (V)
Pulse continuous time (s)
Period (s)
Rated voltage (V)
Rated power (W)
Resistance value (Ω)
Max. pulse limit voltage (V)
Part No.
K
Vp max. (V)
ERQ14A
0.6
200
ERQ12A
0.6
250
ERQ1AB
0.6
250
ERQ2AB
0.4
250
● T>1(s) → T=1(s)
● T/t>100 → T/t=100
● PP<P → P stands for PP
(VP<VR → VR stands for VP)
● Added voltage<Vp max.
● PP or VP is reference value
Conditions : Pulse added time=1000 h, Resistance change=±5 %
Room 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.
02 Sep. 2014
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