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.
Voltage Step-up Coils
(3.1)
1.2
±
0.1
5.5±0.2
1.5
±
0.1
0.18
±
0.05
3.3±0.2
1.2
±
0.1
3.3±0.1
0.6
±
0.1
0.85
±
0.10
1
2
3
4
5
(3.3)
1.1
±
0.2
5.5±0.2
1.65
±
0.20
0.18
±
0.05
0.25
±
0.05
3.3±0.2
3.3±0.1
0.6
±
0.1
0.85
±
0.10
1
2
3
4
5
1.2
±
0.1
(3.3)
1.1
±
0.2
5.5±0.2
1.4
±
0.2
0.18
±
0.05
0.125
±
0.050
3.3±0.2
1.2
±
0.1
3.3±0.1
0.6
±
0.1
0.85
±
0.10
1
2
3
4
5
(3.1)
1.2
±
0.1
5.5±0.2
2.0
±
0.2
0.18
±
0.05
3.3±0.2
1.2
±
0.1
3.3±0.1
0.6
±
0.1
0.85
±
0.10
1
2
3
4
5
(3.1)
4.5±0.2
3.3±0.1
f3.1±0.2
0.10±0.05
3.1±0.2
1.4 max.
1.2±0.1
0.8±0.1
1
2
3
4
5
E
1
L
2
T
3
3
4
K
5
N
6
0
7
0
8
4
9
B
C
f180 Reel
f370 Reel
Product Code Outer size Construction Design No. Packaging
C
10
1.1±0.1
0.10±0.05
3.1±0.2
2.5±0.1
1.2±0.1
0.8±0.1
4.5±0.2
3.3±0.1
2.73±0.10
1
6
4
5
2
Explanation of Part Numbers
Features
Recommended Applications
Standard Packing Quantity
Dimensions in mm (not to scale)
● Small and thin
● High inductance
● RoHS compliant
● Piezoelectric buzzer, Booster circuit for EL backlight (Watch, Electric thermometer, Portable device)
● HAC inductor (Smartphone, Cellular phone)
● 1,000 or 5,000 pcs./reel
Voltage Step-up Coils
Series : Chip
Type : 3KN
ELT3KN
Part Name: 1 Core 2 Terminal 3Ring 4 Coil 5 Terminal board 6 Adhesive
● Type 3KN
A
B
C
D
E
H
High inductance Voltage Step-up coil chip series for
piezoelectric buzzers and DC/DC circuitry of EL panels
Oct. 201403
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.
Voltage Step-up Coils
Standard Parts
“□” shows the packaging specifications.
Part No. Inductance R. D. C I.D.C
(mA) max. Dimensions Magnetic
Composition
(mH)
Tolerance(%)
(Ω)
Tolerance(%)
ELT3KN004□14.00 ±40 125 ±10 1.7
A
Permalloy ring
ELT3KN007□20.00 170 1.4
ELT3KN113□1.00
±10
34
±15
25.0
Brass ringELT3KN126□1.50 49 29.0
ELT3KN142□0.82 24 30.0
ELT3KN019□14.00 ±40 125 ±10 1.7
B
Permalloy ring
ELT3KN109□3.80 ±10 115 ±20 15.0 Brass ring
ELT3KN114□2.50 83 ±15 15.0
ELT3KN014□30.00 ±40 150 1.9
C
Permalloy ring
ELT3KN018□35.00 235 ±10 1.9
ELT3KN028□50.00 ±35 250 ±15 1.4
ELT3KN032□25.00 ±40 185 10.0
ELT3KN101□10.00
±10
285 ±10 1.4
Brass ring
ELT3KN104□1.00 35
±15
30.0
ELT3KN118□2.50 64 20.0
ELT3KN121□1.00 22.5 40.0
ELT3KN122□2.00 44 20.0
ELT3KN123□1.00 25 30.0
ELT3KN124□4.00 85 15.0
ELT3KN127□0.47 14 50.0
ELT3KN128□0.56 15 45.0
ELT3KN129□0.68 17 34.0
ELT3KN130□2.30 51 23.0
ELT3KN131□2.00 44 20.0
ELT3KN020□30.00 ±30 150 2.5
D
Permalloy ring
ELT3KN111□7.50 ±10 177 10.0 Brass ring
ELT3KN125□4.00 85 15.0
ELT3KN041□14.00
±40
125
±10
1.7
E
Permalloy ringELT3KN042□20.00 175 1.4
ELT3KN043□12.00 117 1.7
ELT3KN139□0.68
±10
19
±15
40.0
Brass ring
ELT3KN140□0.82 22 30.0
ELT3KN135□1.10 32 30.0
ELT3KN136□2.00 55 20.0
ELT3KN137□4.00 117 ±10 15.0
ELT3KN149□0.33 11
±15
60.0
ELT3KN151□0.56 17 50.0
ELT3KN152□0.47 14 50.0
ELT3KN155□1.10 38 25.0 H Ring less
ELT3KN162□4.00 117 ±10 15.0 E Brass ring
ELT3KN163□1.10 32 ±15 30.0
Oct. 201403
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.
Voltage Step-up Coils
t1
t2
Chip component P1P3
Chip pocket
Tape running direction
EF
W
Sprocket hole
A
B
fD0
P2
T
C
E
D
B
Wt
A
200 min. 50 min.
Leader part
Tape end
50 min.
Vacant position
Vacant position
Vi
Vi
SC Vo
Vo
+1.5 V
For buzzer
Vi
Vi V1V2
SC
V1
V2
+3.0 V
Load
For EL DC/DC
Packaging Methods
Applied Diagram Examples
● Standard Packing Quantity ●
Embossed Carrier Tape Dimensions in mm (not to scale)
● Reel Dimensions in mm (not to scale)
● Leader Part, Vacant Position
Packaging ELT3KN Kind of Taping
B 1,000 pcs. Embossed Carrier
Taping
C 5,000 pcs.
Part No. A B W F E P1
ELT3KN 3.7 6.4 12.0 5.5 1.75 8.0
Part No. P2P30D0t1t2
ELT3KN 2.0 4.0 1.5 0.3 2.6
Packaging A B C D EW t T
B 180 60 13 21 2 13 1.1 15.2
C 370 60 13 21 2 14 2.0 18
Oct. 201402
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.
Voltage Step-up Coils
t2
Temperature (°C)
Time
T3
T2
T1
t1
0
Re ow soldering conditions
Soldering Conditions
● Pb free solder recommended temperature profi le
Part No.
Preheat Soldering Peak Temperature Time of
Refl ow
T1 [°C] t1 [s] T2 [°C] t2 [s] T3 T3 Limit
ELT3KN 150 to 170 60 to 120 230 °C 30 max. 245 °C, 10 s 260 °C, 10 s 2 times max.
Oct. 201402
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.
Voltage Step-up Coils
Don’t Press
Wiring Tab
Precautions for use
1. Operation range and environments
1 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 pli anc es, office equipment, information and com mu ni ca tion
equipment)
2 These products are not designed for the use in the following special conditions. Be fore using the products, care ful ly
check the effects on their quality and performance, and determine whether or not they can be used.
• In liquid, such as water, oil, chemicals, or organic solvent
• In direct sunlight, outdoors, or in dust
• In salty air or air with a high concentration of corrosive gas, such as Cl2, H2S, NH3, SO2, or NO2
• In an environment where these products cause dew condensation
2. Handling
1 Do not bring magnets or magnetized materials close to the product. The influence of their magnetic field can
change the inductance value.
2 Do not apply strong mechanical shocks by either dropping or collision with other parts.
Excessive schock can damage the part.
3. Resoldering with a soldering iron
1
Resoldering should be done within 3 seconds by soldering iron, the temperature with 350 °C or less and should be cooling
down after ward. Both side of terminals shall be fixed closely to PWB. And terminals shall not be pressed in heating.
Safety Precautions
(Common precautions for Voltage Step-up Coils)
• When using our products, no matter what sort of equipment they might be used for, be sure to make a written
agreement on the specifications with us in advance. The design and specifications 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. Be fore 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 equip ment
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), traffic lights, medical equipment, aerospace equipment, elec tric heating
ap pli anc es, com bus tion/gas equipment, rotating equipment, and disaster/crime prevention equip ment.
✽ 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
<Package markings>
Package markings include the product number, quantity, and country of origin.
In principle, the country of origin should be indicated in English.
2 The wiring tab shall not be held by sharp-edged tool.
3 Iron shall not be put to the component itself.
4. Mounting side
1 External force must be less than 4.9N while mounting.
2 The wiring tab is expose the terminal, so please be careful when you design PWB pattern of coil
circumference.
5. Cleaning
If you clean the inductor, please use own your ultrasonic cleaning to check specified conditions.
6. Storage conditions
Normal temperature (–5 to 35 °C), normal humidity (85 % RH max.), shall not be exposed to direct sunlight and
harmful gases and care should be taken so as not to cause dew.
Oct. 201402
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