features：特征
● high reliability,and easy for surface mountassembly; 可靠性高，易于表面贴装
● highly accurate dimensions and reliable;高度准确尺寸可靠
● excellent solderability and resistance tosoldering heat; 良好的焊接性能和耐焊接热
● suitable for reflow soldering; 适用于回流焊接
● operating temp:-25℃ to +85℃ 工作温度:-25℃ to+85℃
applications：应用
personal computer,disk drivers and computerperipherals,communication,vcd,dvd,and tv circuits,teste,
buzzers and alarm systems,electronic controlboards for automobiles,etc
个人电脑，磁盘驱动器和计算机外围设备，通讯，vcd光盘，dvd和电视电路，测试设备，蜂鸣器和报警系统，汽车电子控制板等.
shape andsize：（dimensions are inmm）图示和尺寸：（单位mm）
type
a
max
b
max
c
max
d
e
f
g
h
smdf252018
2.70
2.20
2.00
0.45
1.40
1.00
1.80
2.00
smdf322522
3.50
2.70
2.40
0.60
1.10
1.00
1.80
2.00
smdf453232
4.80
3.40
3.40
1.20
1.30
1.50
3.00
2.50
productidentification：产品识别
smdf 252018 s – 3r3 k
1 2 3 4 5
1. style:molded wound type chipinductance 塑封绕线片式电感
2. dimenions: l=2.5mm w=2.0mm h=1.8mm尺寸：长=2.5mm 宽=2.0mm 高=1.8mm
3. applications: s—use signal line c--usepower line s—信号线使用 c—电源线使用
4 inductance:3r3 for 3.3uh 电感值：3r3电感量为3.3uh
5 tolerance: j:±5%;k:±10% 公差：j:±5%;k:±10%
electrical characteristics for smdf252018c/sseries
smdf252018c/s系列电气特性参数
part no.
l
q
l q freq.
srf
dcr
idc
mhz min
max
ma max
252018c-1r0
1.0
20
7.96mhz
200
0.34
475
252018c-1r5
1.5
20
7.96mhz
165
0.42
435
252018c-2r2
2.2
20
7.96mhz
95
0.50
390
252018c-3r3
3.3
20
7.96mhz
55
0.65
340
252018c-4r7
4.7
20
7.96mhz
43
0.80
285
252018c-6r8
6.8
20
7.96mhz
39
1.00
275
252018c-100
10
30
2.52mhz
32
1.69
210
252018c-150
15
30
2.52mhz
21
2.20
175
252018c-220
22
30
2.52mhz
18
2.80
160
252018c-330
33
30
2.52mhz
16
4.20
120
252018s-r10
0.10
20
100mhz
800
0.80
280
252018s-r12
0.12
30
25.2mhz
700
0.30
550
252018s-r15
0.15
30
25.2mhz
550
0.35
500
252018s-r18
0.18
30
25.2mhz
500
0.40
460
252018s-r22
0.22
30
25.2mhz
450
0.50
430
252018s-r27
0.27
30
25.2mhz
425
0.55
420
252018s-r33
0.33
30
25.2mhz
400
0.60
400
252018s-r39
0.39
30
25.2mhz
375
0.65
375
252018s-r47
0.47
30
25.2mhz
350
0.68
350
252018s-r56
0.56
30
25.2mhz
325
0.75
325
252018s-r68
0.68
30
25.2mhz
300
0.85
300
252018s-r82
0.82
30
25.2mhz
260
1.00
260
252018s-1r0
1.0
30
7.96mhz
245
1.10
245
252018s-1r2
1.2
30
7.96mhz
230
1.20
230
252018s-1r5
1.5
30
7.96mhz
182
1.30
220
252018s-1r8
1.8
30
7.96mhz
135
1.45
210
252018s-2r2
2.2
30
7.96mhz
105
1.55
200
252018s-2r7
2.7
30
7.96mhz
70
1.70
195
252018s-3r3
3.3
30
7.96mhz
55
1.90
185
252018s-3r9
3.9
30
7.96mhz
48
2.10
180
252018s-4r7
4.7
30
7.96mhz
43
2.30
175
252018s-5r6
5.6
25
7.96mhz
42
2.50
170
252018s-6r8
6.8
25
7.96mhz
39
2.70
165
252018s-8r2
8.2
25
7.96mhz
36
3.05
160
252018s-100
10
25
2.52mhz
33
3.50
155
252018s-120
12
25
2.52mhz
30
3.80
150
252018s-150
15
25
2.52mhz
26
4.40
140
252018s-180
18
25
2.52mhz
24
4.80
130
252018s-220
22
25
2.52mhz
22
5.50
125
252018s-270
27
25
2.52mhz
21
6.30
115
252018s-330
33
25
2.52mhz
20
7.10
110
252018s-390
39
20
2.52mhz
18
9.50
90
252018s-470
47
20
2.52mhz
17
11.1
80
252018s-560
56
20
2.52mhz
16
12.1
75
252018s-680
68
20
2.52mhz
15
16.6
70
252018s-820
82
20
2.52mhz
13
19.0
86
252018s-101
100
15
0.796mhz
12
21.0
60
本产品的应用范围是阻流，种类是电流互感器，品牌是三一，型号是2520232，封装形式是绕线电感，绕线形式是多层平绕式，导磁体性质是铁氧体磁芯，磁芯形状是罐形，工作频率是高频，安装方式是卧式密封，骨架材料是铁氧体，电感量是1，额定电流是60-1050（mA）