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电源功率变换材料公差


电磁公差
材质料号(Mix No.)
-2
-8
-14
-18
-19
-26
-28
-30
-33
-34
-35
-38
-40
-45
-52
-267
-275

  A公差

±5%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
+35%
-25%
+35%
-25%

磁心都是基于上面所列AL值生产;各材质磁导率只是参考值。AL 值都是基于交流磁通密度峰值是10 guass (1mT)和测试频率10kHz。

在其它条件测试得到的结果请参照电磁曲线图 初始磁导率百分比 vs. 交流磁通密度峰值图

测试磁环时为了减少漏感的影响使用刚好一层均匀分布的线圈。使用较少的圈数线圈没有均匀分布时测试铁粉心得到的结果会比正常的高。E形磁心用100圈测试。

所有电磁特性曲线的公差是 ±10%, 磁心损耗曲线的公差是 ±15%

外形寸法公差 (英寸)

TOROIDS*

OD
ID
Ht

TOROIDS*

OD
ID
Ht

T16-T20

±.010
±.010
±.010
T150-T225
±.025
±.025
±.030

T25-T38

±.015
±.015
±.020
T249-T400
±.030
±.030
±.030

T40-T72**

±.020
±.020
±.020
T520-T650
±.050
±.050
±.050

T44-T72**

±.020
±.020
±.020





T80-T141

±.020
±.020
±.025





-

COMPOSITE*

OD
ID
Ht
COMPOSITE*
OD
ID
Ht

ST50

±.015
±.015
±.020
ST150
±.040
±.030
±.030

ST83-ST102

±.030
±.020
±.025
ST200
±.050
±.040
±.040

-

BUS BAR*

A
B
D
E
L



HS300-HS400

±.015
±.020
±.005
±.005
±.020



-

U CORES

A
B
C
E
F
G


U61-U80

±.010
±.010
±.010
±.010
±.010
±.010


U350

±.020
±.020
±.015
±.020
±.015
±.030


-

E CORES

A
B
C
D
F
G
MAX GAP***

E49-E118

±.010
±.010
±.005
±.007
±.005
±.007
.0015

E125-E162

±.015
±.015
±.007
±.010
±.007
±.010
.0015

E168-E225

±.015
±.015
±.010
±.010
±.007
±.010
.0020

E305-E450

±.030
±.030
±.015
±.020
±.015
±.020
.0030

E610

±.040
±.040
±.025
±.030
±.025
±.030
.0050

-

EF CORES

A
B
C
D
E/F
G
MAX GAP***

EF60-EF80

±.010
±.010
±.005
±.010
±.005
±.007
.0030

-

EM CORES

A
B
C
D
G
H
MAX GAP***

EM145

±.015
±.015
±.010
±.020
±.010
±.015
.0020

EM168-EM220

±.015
±.015
±.010
±.020
±.010
±.015
.0030

-

PLAIN CORES

OD
L






Pxx24-Pxx40

+.000/-.005
±.015






Pxx48-Pxx76

+.000/-.005
±.020






-

HOLLOW CORES

OD
ID
L





Hx10-Hx12

+.000/-.005
+.005/-.000
±.010





Hxx14-Hxx20

+.000/-.005
+.005/-.000
±.015





Hxx21-Hxx25

+.000/-.005
+.005/-.000
±.020





-

DISCS

OD
CB
ID
T




D45-D80

+.000/-.010
+.005/-.000
+.005/-.000
±.007




-

*公差包括涂层
**单个磁心气隙

** T50-8/90和T50-8B/90的OD是 + 025/- .015


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