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DEM2818C_16 Datasheet, PDF (1/1 Pages) TOKO, Inc – Ferrite Inductors | |||
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Ferrite Inductors
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DEM2818C
Inductance Range: 0.47~12ïH
Recommended patterns
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FEATURES ç¹é·
*DEM2818C: 1.8mm Max.
ï· Low profile (2.8ï ï´ï 3.0mm square, 1.8mm Max.height).
ï· Magnetically shielded construction and low DC resistance.
ï· Ideal for a variety of DC-DC converter inductor
applications.
(Unit: mm)
(Unit: mm)
ï· å°åèå½¢æ§é (2.8ï ï´ï 3.0mmè§ é«ã1.8mm Max.)
ï· éç£è·¯æ§é 、ä½ç´æµæµæ
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STANDARD PART NUMBERS æ¨æºåä¸è¦§
TYPE DEM2818C (Magnetically Shielded, Quantity/reel; 2,000 PCS)
åçª
ã¤ã³ãã¯ã¿ã³ã¹(1)
許容差
ç´æµæµæ(2)
ç´æµéç³è¨±å®¹é»æµ(3)
Part
Number
Inductance(1)
(ïH)
Tolerance
(%)
DC
Resistance(2)
(mï) Max. (Typ.)
Inductance
Decrease Current(3)
(A) Max. (Typ.)
ïL
L
=30%
1227AS-H-R47N=P2
0.47
1227AS-H-1R0N=P2
1.0
1227AS-H-1R5N=P2
1.5
1227AS-H-2R2M=P2
2.2
1227AS-H-3R3M=P2
3.3
ï± 30
20 (17)
3.3 (4.4)
ï± 30
29 (24)
2.3 (3.1)
ï± 30
32 (27)
2.0 (2.6)
ï± 20
47 (39)
1.7 (2.2)
ï± 20
67 (56)
1.3 (1.7)
1227AS-H-4R7M=P2
4.7
1227AS-H-6R8M=P2
6.8
1227AS-H-100M=P2
10
1227AS-H-120M=P2
12
ï± 20
92 (77)
1.1 (1.4)
ï± 20
146 (122)
0.90 (1.2)
ï± 20
204 (170)
0.75 (1.0)
ï± 20
258 (215)
0.65 (0.87)
温度ä¸æ許容é»æµ(3)
Temperature
Rise Current(3)
ïT=40ï°C
(A) Max. (Typ.)
4.7 (5.5)
3.7 (4.3)
3.4 (4.0)
2.6 (3.1)
2.0 (2.4)
1.8 (2.1)
1.3 (1.5)
1.2 (1.4)
1.0 (1.2)
(1) Inductance is measured with a LCR meter 4284A (Agilent
Technologies) or equivalent.
Test frequency at 100kHz
(2) DC resistance is measured with 34420A (Agilent Technologies) or
3541(HIOKI). (Reference ambient temperature 25°C)
(3) Maximum allowable DC current is that which causes a 30%
inductance reduction from the initial value, or coil temperature to
rise by 40°C, whichever is smaller. (Reference ambient
temperature 20°C)
(1) ã¤ã³ãã¯ã¿ã³ã¹ã¯LCRã¡ã¼ã¿4284Aï¼Agilent Technologiesï¼
ã¾ãã¯åçåã«ãã測å®ããã
測å®å¨æ³¢æ°ã¯100kHzã
(2) ç´æµæµæã¯æ¸¬å®å¨34420Aï¼Agilent Technologiesï¼ã¾ãã¯3541
ï¼HIOKIï¼ã¨åçåã«ãã測å®ãããï¼å¨å²æ¸©åº¦25°Cï¼
(3) æ大許容é»æµã¯ãç´æµéç³é»æµãæµããæã¤ã³ãã¯ã¿ã³ã¹ã®å¤ã
åæå¤ãã30ï¼
æ¸å°ããç´æµé»æµå¤ãã¾ãã¯ç´æµé»æµã«ããã
ã³ã¤ã«ã®æ¸©åº¦ã40°Cä¸æã®ä½ããå°ããå¤ãï¼å¨å²æ¸©åº¦20°Cã
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