Power Inductors(SMT Type)
LDR SERIES
(SMT
Power Inductors without Shiele)
Dimensions & land pattern (unit:mm)
D
xxx
A
C
A
max
4.8
5.3
6.3
7.5
F
H
G
B
±0.1
3.0
3.5
4.3
5.4
C
max
1.3
1.3
1.2
1.2
B
E
TYPE
LDR3011-XXXX
LDR3511-XXXX
LDR4311-XXXX
LDR5411-XXXX
L range
2.2uH½33uH
2.2uH½33uH
2.2uH½47uH
1000uH
I range(mA)
120mA
½1700mA
380mA
½1500mA
420mA
½1150mA
50
mA
D
0.5
0.6
0.6
0.8
E
2.6
3.0
3.6
4.9
F
2.4
2.8
2.8
4.7
G
1.0
1.0
1.0
1.3
H
4.8
5.3
6.0
7.5
Specification for LDR3011 Series
Part Number
LDR3011–2R2□
LDR3011–3R3□
LDR3011–4R7□
LDR3011–6R8□
LDR3011–100□
LDR3011–220□
LDR3011–330□
Inductance
(uH)
2.2
3.2
4.7
6.8
10.0
22.0
33.0
Test Frequency.
(KHz)
100
100
100
100
100
100
100
DCR at 25℃
(Ω)(Max)
0.12
0.16
0.22
0.35
0.60
1.00
1.70
Rated Current
(A)(Max)
0.9
0.8
0.75
0.6
0.55
0.40
0.25
Marking
2R2
3R3
4R7
6R8
100
220
330
Lead Free
Empro Technology Corporation
TEL : +886-2-22254982
E-mail:
sales@empro.com.tw
FAX : +886-2-22254984
http://
www.empro.com.tw
LDR SERIES
Power Inductors(SMT Type)
Specification for LDR3511 Series
Part Number
LDR3511–2R2□
LDR3511–3R3□
LDR3511–4R7□
LDR3511–6R8□
LDR3511–100□
LDR3511–220□
LDR3511–330□
Inductance
(uH)
2.2
3.3
4.7
6.8
10
22
33
Test Frequency.
(KHz)
100
100
100
100
100
100
100
DCR at 25℃
(Ω)(Max)
0.15(0.11)
0.2(0.14)
0.25(0.17)
0.35(0.26)
0.6 (0.40)
1.2 (0.86)
1.5 (1.2)
Rated Current
(A)(Max)
1.5
1.3
1.1
0.7
0.55
0.45
0.38
Marking
2R2
3R3
4R7
6R8
100
220
330
Specification for LDR4311 Series
Part Number
LDR4311–2R2□
LDR4311–3R3□
LDR4311–4R7□
LDR4311–6R8□
LDR4311–100□
LDR4311–220□
LDR4311–330□
LDR4311–470□
Inductance
(uH)
2.20 uH
3.30 uH
4.70 uH
6.80 uH
10.00 uH
22.00 uH
33.00uH
47.00 uH
Test Frequency.
(KHz)
100KHz
100KHz
100KHz
100KHz
100KHz
100KHz
100KHz
100KHz
DCR at 25℃
(Ω)(Max)
0.156
0.193
0.257
0.305
0.462
0.838
1.375
1.725
Rated Current
(A)(Max)
1.15
1.00
0.92
0.815
0.71
0.50
0.42
0.335
Marking
2R2
3R3
4R7
6R8
100
220
330
470
Specification for LDR5411 Series
Part Number
LDR5411-102M
Inductance
(uH)
1000
Test Frequency.
(KHz)
100KHz/0.1V
DCR at 25℃
(Ω)(Max)
20.5
Rated Current
(A)(Max)
0.05
Marking
102
Empro Technology Corporation
TEL : +886-2-22254982
E-mail:
sales@empro.com.tw
FAX : +886-2-22254984
http://
www.empro.com.tw
LDR SERIES
Power Inductors(SMT Type)
*
□Tolerance
( M 20%，N 30%)
* The Inductance drop≦35% typ. at Rated current
* Test condition: at 100KHz/0.1V
* Test Equipment:HP-4284 A; GOM-801G; 1310+1061
* Operatng Temp.:-40℃~85℃
Features:
The first ultra-low height realized by using new magnetic material superior in superimposed DC
current characteristics with ultra-high specific resistance and by adopting a lead frame is directly
bonded
Mountable on the back side of the LCD surface because of ultra-low height type(1.2mm max)
Low leakage flux drum core with original design applied
Size equivalent to a half of a conventional core having the same characteristics realized, thus
enabling ultralight weight(0.1g max)
Automatic inserter usable in taping specifications.
All terminals are welded without lead
Application
LCD driving circuits(DC-DC converters)such as notebook-sized personal computers, portable
terminal equipment, game units
Empro Technology Corporation
TEL : +886-2-22254982
E-mail:
sales@empro.com.tw
FAX : +886-2-22254984
http://
www.empro.com.tw
LDR SERIES
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