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DEM4518C_16 Datasheet, PDF (1/1 Pages) TOKO, Inc – Ferrite Inductors | |||
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Ferrite Inductors
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DEM4518C
Inductance Range: 1.2~22ïH
Recommended patterns
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FEATURES ç¹é·
(Unit: mm)
DEM4518C: 1.8mm Max.
(Unit: mm)
ï· Low profile (4.5ï´4.7mm square, 1.8mm Max. height).
ï· Magnetically shielded construction and low DC resistance.
ï· Ideal for a variety of DC-DC converter inductor applications.
ï· å°åèå½¢æ§é (4.5ï´4.7mmè§, é«ã1.8mm Max.)
ï· éç£è·¯æ§é 、ä½ç´æµæµæ
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STANDARD PART NUMBERS æ¨æºåä¸è¦§
TYPE DEM4518C (Quantity/reel; 2,000 PCS)
åçª
ã¤ã³ãã¯ã¿ã³ã¹(1)
許容差
ç´æµæµæ(2)
Part
Number
1235AS-H-1R2N=P3
1235AS-H-1R8N=P3
1235AS-H-2R4M=P3
1235AS-H-3R3M=P3
1235AS-H-4R3M=P3
1235AS-H-6R8M=P3
1235AS-H-100M=P3
1235AS-H-150M=P3
1235AS-H-220M=P3
Inductance(1)
(ïH)
1.2
1.8
2.4
3.3
4.3
6.8
10
15
22
Tolerance
(%)
ï± 30
ï± 30
ï± 20
ï± 20
ï± 20
ï± 20
ï± 20
ï± 20
ï± 20
DC
Resistance(2)
(mï) Max. (Typ.)
47 (39)
56 (47)
65 (54)
74 (62)
84 (70)
106 (88)
132 (110)
192 (160)
306 (255)
ç´æµéç³è¨±å®¹é»æµ(3)
Inductance
Decrease Current(3)
(A) Max. (Typ.)
ïL
L
=30%
3.50 (4.70)
3.00 (3.90)
2.60 (3.40)
2.30 (3.00)
2.00 (2.65)
1.70 (2.20)
1.30 (1.75)
0.98 (1.30)
0.91 (1.20)
温度ä¸æ許容é»æµ(3)
Temperature
Rise Current(3)
ïT=40ï°C
(A) Max. (Typ.)
2.90 (3.40)
2.70 (3.20)
2.30 (2.70)
2.10 (2.50)
2.00 (2.40)
1.90 (2.20)
1.70 (2.00)
1.10 (1.30)
1.00 (1.20)
(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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