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Metal Film Fusing Resistors, ERQA, Z
Metal Film Fusing Resistors Type: ERQA ERQZ
(0.25 W, 0.5 W, 1 W, 2 W coating type)

Features
Accurate fusing Small size and lightweight Uniform quality, consistent performance and reliability Flame retardant, utilizing exclusive silicon insulation material Reference Standard EIAJ RC-2125
Construction and Materials
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.
Feb. 2006
Metal Film Fusing Resistors, ERQA, Z
Explanation of Part Numbers
1 2 3 4 5 6 7 8 9 10 11 12
E
Product Code Metal Film Fusing Resistors
R
Q
Power Rating at 70 C amb. 0.25 W 14 0.5 W 12 1 2 1W 2W
2
Special Feature A Standard Z Less than 2
A
B
J
1
0
1
Resistance Tolerance J 5 %
AB Z
Standard Less than 2
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.
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 standard bulk packing.
, tolerance of 5 %, and package of
Ratings
Dielectric Maximum Power Open Maximum With- Resistance Rating Circuit Overload standing Tolerance at 70C (1) Voltage Voltage Voltage (%) (W) (V) (V) 0.25 0.5 1 2 200 250 250 250 3 times of rated (2) voltage AC 350 AC 350 AC 600 AC 1000 J ( 5) J ( 5) J ( 5) J ( 5) Resistance Range ( ) min. 1.0 2.0 1.0 2.0 1.0 2.0 1.0 2.0 max. 1.8 470 1.8 560 1.8 560 1.8 560 Standard Marking Mass T.C.R. -6 [ 10 /C Resistance Method (Weight) (ppm/C)] Values on Body [g/pc.] Color code Color code Stamp Stamp 0.24 (0.53 lbs.) 0.32 (0.71 lbs.) 0.64 (1.41 lbs.) 1.54 (3.35 lbs.)
Type
ERQ14Z ERQ14A ERQ12Z ERQ12A ERQ1Z ERQ1AB ERQ2Z ERQ2AB
350 350 350 350
E24 E24 E24 E24
(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
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 0 -60 -40 -20 0 130 C 20 40 60 80 100 120 140 160 180 200 220 Ambient temperature (C) ERQ14 ERQ12 150 C -30 C 70 C ERQ1 ERQ2
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
Metal Film Fusing Resistors, ERQA, Z
Dimensions in mm (not to scale)
Dimensions (mm) Type L
l L l fd fD
fD 2.3 2.8 4.0 5.5
0.5 0.5 1.0 1.0
k 30.0 30.0 30.0 38.0
3.0 3.0 3.0 3.0
fd 0.65 0.65 0.80 0.80
0.05 0.05 0.05 0.05
ERQ14 ERQ12 ERQ1 ERQ2
6.3
+1.5 -1.0 +1.5 +1.5 1.5
9.0 -1.0 12.0 -1.0 15.0
Explanation of Marking
Type 14, 12
1st significant figure 2nd significant figure White color shows Fuse Resistor
Type 1, 2
Q Shows Fuse Resistor Symbol 1W 100 J 711 Power rating Manufacturing Series No.
105
Q
Multipier
Resistance tolerance
Resistance value and tolerance
Date code (Year, Month, Week)
Cut & Formed Type
ERQ ERQ AJ ZJ P P
S f0.650.05 L fD
h 0.8 1.20.2 3 max.
Part No. ERQ14 J ERQ12 J P P
Power Rating at 70 C (W) 0.25 0.5
Standard Q'ty/Packing (pcs.) 2000 2000
Dimensions (mm) L 6.3
+1.5 -1.0 +1.5
fD 2.3 2.8
0.5 0.5
4.01.0
S 10.0 12.5
1.5 1.5
h 4.0 4.0
1.5 1.5
9.0 -1.0
ERQ ABJP ERQ ZJP
S S
S f0.800.05 L
fD
h 1.0 1.40.2 3.5 max.
Part No. ERQ1 ERQ2 JP JP S S
Power Rating at 70 C (W) 1 2
Standard Q'ty/Packing (pcs.) 1000 1000
Dimensions (mm) L 12.0
+1.5 -1.0 1.5
fD 4.0 5.5
1.0 1.0
4.01.5
S 15.0 20.0
1.5 2.0
h 6.0 6.5
1.5 1.5
15.0
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.
Feb. 2006
Metal Film Fusing Resistors, ERQA, Z
For Panasert Automatic Insertion Machine Radial Tape & Box
AJ E Type ERQ ERQ ZJ E (14A/14Z, 12A/12Z, 1AB/1Z)
Insulated Lead P P2 D
A
F
P1 H0
H1
P0 Dimensions (mm) P P0 P1 P2 F 12.71.0 12.70.3 3.850.70 6.351.00 5.00.8 H0 fD0 W W1 Dimensions (mm) 18.00.5 9.00.5 H1 Dimensions (mm) 14A/14Z 12 max.
fD0 Dimensions (mm) 14A/14Z A 12A/12Z 1AB/1Z fd 6.35
+0.65 -0.35
W
fd
W1
Dimensions (mm) 14A/14Z D 12A/12Z 1AB/1Z 2.30.5 2.80.5 4.01.0
12A/12Z 15.5 max. 1AB/1Z 19 max.
9.0 -1.0
+1.5 +1.5
12.0 -1.0
16.00.5 4.00.2
0.650.05
Radial Tape Packaging Methods
Dimensions (mm) a ERQ14AJ ERQ14ZJ ERQ12AJ ERQ12ZJ a c ERQ1ABJ ERQ1ZJ E E E E E E 46 46 49 b 130 130 100 c 335 335 335
Part Number
Standard Quantity (pcs./box) 2000 pcs./box 2000 pcs./box 1000 pcs./box
Marking
For Panasert Automatic Insertion Machine Radial Taped & Box
Type ERQ A/ZJW
P1 P P A B fD P0
b
E (14A/14Z, 12A/12Z, 1AB/1Z)
Dimensions (mm) 14A/14Z 12A/12Z, 1AB/1Z 14A/14Z 12A/12Z, 1AB/1Z 14A/14Z 12A/12Z, 1AB/1Z 14A/14Z 12A/12Z, 1AB/1Z 14A/14Z 12A/12Z, 1AB/1Z 18.00.5 9.00.5 14A/14Z 16.00.5 18.01.0 18.01.0 fd fD 12.71.0 30.01.0 12.70.3 15.00.3 6.351.00 7.51.0 3.850.70 3.750.50 5.0 -0.2 7.5 -0.2
+0.6 +0.6
Dimensions (mm) 14A/14Z H1 12A/12Z 1AB/1Z fD0 A 4.00.2 14A/14Z 12A/12Z 1AB/1Z 14A/14Z B 12A/12Z 1AB/1Z 14A/14Z 12A/12Z 1AB/1Z 14A/14Z 12A/12Z, 1AB/1Z 6.35 -0.35 9.0
+1.5 -1.0 +1.5 +0.65
6.5 - 0
+0.6 +1.0 +1.0
6.5 - 0 6.5 - 0
H1
P1 H0 P2 F
P2 W1
12.0 -1.0 11.2 max. 14 max. 17 max. 2.3 -0.3
+0.5
F W W W1
fd
2.80.5 4.01.0 0.650.05 0.800.05
P0
fD0
H0
12A/12Z 1AB/1Z
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
Metal Film Fusing Resistors, ERQA, Z
Performance Specifications
Characteristics Specifications Test Methods
Rated Res. Value Power () 0.25 W 0.5 W 1 to 1.8 1W 2W 0.25 W 0.5 W 2 to 9.1 1W 2W 0.25 W 10 to 470 0.5 W 1W 10 to 560 2W
Limit
Open within 30 seconds at 30 times the rated power Open within 30 seconds at 25 times the rated power Open within 30 seconds at 16 times the rated power Open within 30 seconds at 12 times the rated power
Fusing Characteristics
The test potential shall be preadjusted using a dummy resistor 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 stabilized power source is suggested. Fusing time shall be measured as the duration until the circuit current is decreased to a 1/50 the initial test current or less.
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
Metal Film Fusing Resistors, ERQA, Z
Fusing Characteristics (Constant Voltage Circuit)
This data is for reference only, specifications should be verified in written form with the engineering division.
200 100 50 Fusing time (s) 30
ERQ14A
2.0 to 9.1 ( ) 10 to 470 ( )
200 100 50 Fusing time (s) 30
ERQ12A
2.0 to 9.1 ( ) 10 to 560 ( )
10 5
10 5
1
0
7
9
12 16 20 25 Multiple of the power rating
30
1
0
7
9
12 16 20 25 Multiple of the power rating
30
200 100 50 Fusing time (s) 30
ERQ1AB
2.0 to 9.1 ( ) 10 to 560 ( )
200 100 50 Fusing time (s) 30
ERQ2AB
2.0 to 9.1 ( ) 10 to 560 ( )
10 5
10 5
1
0
7
9
12 16 20 25 Multiple of the power rating
30
1
0
7
9
12 16 20 25 Multiple of the power rating
30
Hot Spot Temperature (for reference)
600 T (K) 500 400 300 200 100 0 0 1 2 3 4 5 6 7 8 Multiple of the power rating 9 10 11 12 12A 2AB 1AB Measuring point
Temperature rise
14A
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
Metal Film Fusing Resistors, ERQA, Z
Safety Precautions
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. 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)
Pulse Characteristics (Usual)
PP VP t T VR P R Vp max. : : : : : : : : Pulse limit power (W) Pulse limit voltage (V) Pulse continuous time (s) Period (s) Rated voltage (V) Rated power (W) Resistance value ( ) Max. pulse limit voltage (V)
Pp (Vp)
t T
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.
Type ERQ14A ERQ12A ERQ1AB ERQ2AB
K 0.6 0.6 0.6 0.4
Vp max. (V) 200 250 250 250
T=1(s) T>1(s) T/t=100 T/t>100 P stands for PP PP

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
Safety Precautions (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 specifi cations with us in advance. The design and specifi cations 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 (au to mo bile, train, vessel), traffi c lights, medical equipment, aerospace equipment, elec tric 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 and stan dard use in general elec tron ic equipment (e.g. AV equipment, home electric ap plianc es, offi ce equipment, information and com mu ni cation 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. Electric Static Discharge (ESD) Environment These components are sensitive to static electricity and can be damaged under static shock (ESD). Please take measures to avoid any of these environments. Smaller components are more sensitive to ESD environment. 5. Electromagnetic Environment Avoid any environment where strong electromagnetic waves exist. 6. In an environment where these products cause dew condensation 7. 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 fl ux, or water-soluble fl ux may deteriorate the performance or reliability of the products. * Carefully select a fl ux 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 include the product number, quantity, and country of origin. In principle, the country of origin should be indicated in English.
Feb. 2006
- ER3 -

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