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參數(shù)資料
| 型號： | LPD4012-821NTC |
| 廠商： | COILCRAFT INC |
| 元件分類： | 通用定值電感 |
| 英文描述： | 2 ELEMENT, 0.82 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
| 封裝： | CHIP, 4040-12M,ROHS COMPLIANT |
| 文件頁數(shù)： | 2/3頁 |
| 文件大?。?/td> | 128K |
| 代理商： | LPD4012-821NTC |
Specifications subject to change without notice.
Please check our website for latest information.
Coilcraft, Inc. 2010
Coupled Inductors for SEPIC Applications–LPD4012 Series
Document 580-2
Revised 08/02/10/
10
Document 580-2
Irms (A)
Inductance2
DCR max3
SRF typ4
Isat (A)5
both
one
Part number1
(H)
(Ohms)
(MHz)
10% drop 20% drop 30% drop
windings6 winding7
LPD4012-331NL_
0.33 ±30%
0.042
255
5.2
5.4
5.6
1.87
2.65
LPD4012-561NL_
0.56 ±30%
0.087
185
3.7
3.8
3.9
1.30
1.84
LPD4012-821NL_
0.82 ±30%
0.100
130
3.2
3.3
3.4
1.21
1.72
LPD4012-152NL_
1.5 ±30%
0.185
86
2.50
2.81
2.91
1.15
1.62
LPD4012-222NL_
2.2 ±30%
0.235
70
2.30
2.40
2.50
0.95
1.35
LPD4012-332NL_
3.3 ±30%
0.320
48
1.80
1.90
2.00
0.75
1.06
LPD4012-472ML_
4.7 ±20%
0.500
39
1.60
1.70
1.80
0.65
0.92
LPD4012-562ML_
5.6 ±20%
0.620
32
1.50
1.60
0.55
0.78
LPD4012-682ML_
6.8 ±20%
0.530
31
1.20
1.52
1.63
0.60
0.86
LPD4012-822ML_
8.2 ±20%
0.600
29
1.10
1.20
1.30
0.55
0.78
LPD4012-103ML_
10 ±20%
0.750
25
0.98
1.00
1.10
0.50
0.71
LPD4012-153ML_
15 ±20%
1.13
21
0.90
0.92
0.93
0.43
0.60
LPD4012-223ML_
22 ±20%
1.63
15
0.70
0.82
0.84
0.34
0.48
LPD4012-333ML_
33 ±20%
1.83
12
0.37
0.57
0.58
0.31
0.44
LPD4012-473ML_
47 ±20%
2.52
8.8
0.33
0.39
0.40
0.28
0.39
LPD4012-683ML_
68 ±20%
3.23
7.8
0.27
0.36
0.37
0.25
0.36
LPD4012-823ML_
82 ±20%
3.66
7.3
0.27
0.29
0.23
0.31
LPD4012-104ML_
100 ±20%
4.76
6.1
0.22
0.28
0.29
0.20
0.27
LPD4012-124ML_
120 ±20%
5.54
5.3
0.21
0.26
0.27
0.19
0.27
LPD4012-154ML_
150 ±20%
6.90
4.6
0.18
0.26
0.27
0.17
0.23
LPD4012-184ML_
180 ±20%
8.75
4.1
0.16
0.21
0.23
0.14
0.18
LPD4012-224ML_
220 ±20%
11.24
3.3
0.15
0.16
0.17
0.12
0.17
LPD4012-334ML_
330 ±20%
17.00
2.8
0.13
0.16
0.10
0.14
1. Please specify termination and packaging codes:
LPD4012-564M
LC
Termination: L = RoHS compliant Silver-palladium-platinum-glass frit.
Special order:
T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS
tin-lead (63/37).
Packaging: C =7
″ machine-ready reel. EIA-481 embossed plastic
tape (1000 parts per full reel).
B = Less than full reel. In tape, but not machine ready. To
have a leader and trailer added ($25 charge), use
code letter D instead.
D =13
″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (3500 parts per
full reel).
2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms,
0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are
connected in parallel, inductance is the same value. When leads are
connected in series, inductance is four times the value.
3. DCR is for each winding. When leads are connected in parallel, DCR is
half the value. When leads are connected in series, DCR is twice the
value.
4. SRF measured using an Agilent/HP 4191A or equivalent. When leads
are connected in parallel, SRF is the same value.
5. DC current, at which the inductance drops the specified amount from its
value without current. It is the sum of the current flowing in both
windings.
6. Equal current when applied to each winding simultaneously that causes
a 40°C temperature rise from 25°C ambient. See temperature rise
calculation.
7. Maximum current when applied to one winding that causes a 40°C
temperature rise from 25°C ambient. See temperature rise calculation.
8. Electrical specifications at 25°C.
Refer to Doc 639 “Selecting Coupled Inductors for SEPIC Applications.”
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Temperature rise calculation based on specified Irms
Coupled Inductor Core and Winding Loss Calculator
This web-based utility allows you to enter frequency, peak-to-peak (ripple)
current, and
Irms current to predict temperature rise and overall losses,
including core loss. Visit www.coilcraft.com/coupledloss.
Temperature rise = Winding power loss ×
135°C
W
Winding power loss = (
+
) × DCR in Watts (W)
II
L1
2
L2
2
Equal current in each winding (1.05 A):
Winding power loss = (1.05 + 1.05 ) × 0.134 = 0.296 W
Temperature rise = 0.296 W ×
135°C
W
= 40°C
22
Unequal current (II
L1
L2
ower loss = (1.3 + 0.7 ) × 0.134 = 0.292 W
Temperature rise = 0.292 W ×
135°C
W
= 39.4°C
22
= 1.3 A,
= 0.7 A):
Winding p
Examples for LPD4012-152ML:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LPD4012-821NSD | 2 ELEMENT, 0.82 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
| LPD4012-821NSC | 2 ELEMENT, 0.82 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
| LPD4012-821NSB | 2 ELEMENT, 0.82 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
| LPD4012-683MTD | 2 ELEMENT, 68 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
| LPD4012-683MTC | 2 ELEMENT, 68 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LPD4012-822 | 制造商:Coilcraft Inc 功能描述:Power inductor, dual-wound, 20/30% tol, SMT, RoHS |
| LPD4012-822ML | 制造商:Coilcraft Inc 功能描述:Power inductor, dual-wound, 20/30% tol, SMT, RoHS |
| LPD4012-822MLB | 功能描述:耦合電感 Coupled Inductor 8.2 uH 20 % 0.78 A RoHS:否 制造商:Bourns 電感 - 并聯(lián):10 uH 電感 - 串聯(lián):40 uH 容差:20 % 最大直流電流:2.08 A 最大直流電阻:0.0826 Ohms 端接類型:SMD/SMT 工作溫度范圍:- 40 C to + 105 C 系列:SRF0703 類型:Dual-Winding Shielded Power Inductors |
| LPD4012-822MLC | 功能描述:耦合電感 Coupled Inductor 8.2 uH 20 % 0.78 A RoHS:否 制造商:Bourns 電感 - 并聯(lián):10 uH 電感 - 串聯(lián):40 uH 容差:20 % 最大直流電流:2.08 A 最大直流電阻:0.0826 Ohms 端接類型:SMD/SMT 工作溫度范圍:- 40 C to + 105 C 系列:SRF0703 類型:Dual-Winding Shielded Power Inductors |
| LPD4012-823 | 制造商:Coilcraft Inc 功能描述:Power inductor, dual-wound, 20/30% tol, SMT, RoHS |
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