づ
け
Fixed Inductors for Surface Mounting
面
実装
用固定インダクタ
DB315C/DB318C/DB320C
Inductance Range:
1.0~22μH (DB315C), 1.0~22μH (DB318C), 3.9~27μH (DB320C))
DIMENSIONS/外½寸法図
3.8
Recommended patterns
推奨パターン図
*
DB320C
DB318C
(Unit: mm)
(Unit: mm)
DB315C
*
DB315C: 1.5mm Max. height
FEATURES/特長
•
Low profile (4.0mm Max. square,1.5/1.8/2.0mm Max. height).
•
Magnetically shielded construction and low DC resistanse.
•
Ideal for DC-DC converter choke coil for portable equipments
(DVD, DSC, Cellular phone, PDA).
•
RoHS compliant.
DB318C: 1.8mm Max. height
DB320C: 2.0mm Max. height
•
小型薄½構造(4.0mm角Max. 高さ1.5/1.8/2.0mmMax.)
•
閉磁路構造、½直流抵抗
•
小型機器(DVD,
DSC, Cellular phone, PDA)などのDC-
DCコンバータ用チョークコイルに最適
•
RoHS指令対応
TYPE
SELECTION GUIDE FOR STANDARD COILS
DB315C ( Quantity / reel; 2,000 PCS)
インダクタンス
Inductance
(μH)
1.0
1.6
2.2
3.3
4.7
6.8
8.2
10.0
12.0
15.0
18.0
22.0
(1)
(1)
東光品番
TOKO
Part
Number
A1109AS-H-1R0N
A1109AS-H-1R6N
A1109AS-H-2R2N
A1109AS-H-3R3M
A1109AS-H-4R7M
A1109AS-H-6R8M
A1109AS-H-8R2M
A1109AS-H-100M
A1109AS-H-120M
A1109AS-H-150M
A1109AS-H-180M
A1109AS-H-220M
許容差
Tolerance
(%)
±30
±30
±30
±20
±20
±20
±20
±20
±20
±20
±20
±20
直流抵抗
(2)
DC
(2)
Resistance
(mΩ) Max. (Typ.)
51 (43)
68 (57)
78 (65)
110 (88)
150 (120)
210 (180)
290 (240)
310 (260)
420 (350)
560 (470)
640 (530)
720 (600)
直流重畳許容電流
Inductance
(3)
Decrease Current
(A) Max. (Typ.)
ΔL
ΔL
L
=10%
L
=30%
2.00 (2.70)
1.60 (2.10)
1.40 (1.90)
1.10 (1.50)
0.92 (1.20)
0.72 (0.97)
0.67 (0.89)
0.62 (0.83)
0.55 (0.73)
0.51 (0.68)
0.47 (0.62)
0.41 (0.55)
2.60 (3.50)
2.00 (2.70)
1.80 (2.40)
1.40 (1.90)
1.20 (1.60)
0.96 (1.30)
0.87 (1.20)
0.81 (1.10)
0.72 (0.96)
0.66 (0.88)
0.60 (0.81)
0.54 (0.73)
(3)
温度上昇許容電流
Temperature
(3)
Rise Current
ΔT=40°C
(A) Max. (Typ.)
2.10 (2.50)
1.70 (2.00)
1.60 (1.90)
1.40 (1.60)
1.10 (1.30)
0.93 (1.10)
0.77 (0.91)
0.74 (0.87)
0.62 (0.72)
0.52 (0.62)
0.49 (0.58)
0.45 (0.53)
(3)
continued on next page
次頁へ続く
づ
け
Fixed Inductors for Surface Mounting
面
実装
用固定インダクタ
continued from previous page
前頁より続く
SELECTION GUIDE FOR STANDARD COILS
TYPE
DB318C (Quantity/reel; 2,000 PCS)
インダクタンス
Inductance
(μH)
1.0
2.2
3.3
3.9
4.7
5.6
6.8
8.2
10.0
12.0
15.0
18.0
22.0
(1)
(1)
東光品番
TOKO
Part
Number
A997AS-1R0N
A997AS-2R2N
A997AS-3R3M
A997AS-3R9M
A997AS-4R7M
A997AS-5R6M
A997AS-6R8M
A997AS-8R2M
A997AS-100M
A997AS-120M
A997AS-150M
A997AS-180M
A997AS-220M
許容差
Tolerance
(%)
±
30
±
30
±
20
±
20
±
20
±
20
±
20
±
20
±
20
±
20
±
20
±
20
±
20
直流抵抗
(2)
DC
(2)
Resistance
(mΩ) Max. (Typ.)
40 (32)
60 (48)
70 (60)
90 (80)
100 (90)
120 (100)
130 (110)
160 (140)
180 (150)
230 (190)
260 (210)
330 (270)
440 (370)
直流重畳許容電流
Inductance
(3)
Decrease Current
(A) Max. (Typ.)
ΔL
ΔL
L
=10%
L
=30%
1.80 (2.40)
1.30 (1.70)
0.94 (1.26)
0.86 (1.15)
0.85 (1.14)
0.81 (1.09)
0.69 (0.92)
0.59 (0.78)
0.58 (0.77)
0.55 (0.73)
0.48 (0.64)
0.42 (0.56)
0.39 (0.52)
2.30 (3.10)
1.60 (2.10)
1.20 (1.61)
1.10 (1.46)
1.07 (1.43)
1.02 (1.36)
0.89 (1.19)
0.75 (1.00)
0.74 (0.99)
0.70 (0.94)
0.61 (0.81)
0.53 (0.70)
0.51 (0.67)
(3)
温度上昇許容電流
Temperature
(3)
Rise Current
ΔT=40°C
(A) Max. (Typ.)
2.40 (2.80)
1.90 (2.20)
1.64 (1.93)
1.37 (1.61)
1.29 (1.52)
1.23 (1.45)
1.10 (1.29)
1.05 (1.23)
0.99 (1.16)
0.78 (0.92)
0.74 (0.87)
0.63 (0.74)
0.53 (0.63)
(3)
1
2
3
(3)
TYPE
DB320C (Quantity/reel; 2,000 PCS)
インダクタンス
Inductance
(μH)
3.9
4.7
5.6
6.8
8.2
10.0
12.0
15.0
18.0
22.0
27.0
(1)
(1)
東光品番
TOKO
Part
Number
A993AS-3R9M
A993AS-4R7M
A993AS-5R6M
A993AS-6R8M
A993AS-8R2M
A993AS-100M
A993AS-120M
A993AS-150M
A993AS-180M
A993AS-220M
A993AS-270M
許容差
Tolerance
(%)
±
20
±
20
±
20
±
20
±
20
±
20
±
20
±
20
±
20
±
20
±
20
直流抵抗
(2)
DC
(2)
Resistance
(mΩ) Max. (Typ.)
80 (70)
100 (80)
110 (90)
120 (100)
140 (120)
160 (130)
190 (160)
240 (200)
290 (240)
370 (310)
480 (400)
直流重畳許容電流
Inductance
(3)
Decrease Current
(A) Max. (Typ.)
ΔL
ΔL
L
=10%
L
=30%
0.86 (1.15)
0.85 (1.14)
0.73 (0.97)
0.70 (0.93)
0.66 (0.88)
0.59 (0.78)
0.56 (0.74)
0.49 (0.65)
0.45 (0.60)
0.41 (0.55)
0.35 (0.47)
1.10 (1.47)
1.08 (1.44)
0.97 (1.29)
0.89 (1.18)
0.85 (1.14)
0.74 (0.99)
0.69 (0.92)
0.62 (0.82)
0.56 (0.74)
0.52 (0.69)
0.45 (0.60)
(3)
温度上昇許容電流
Temperature
(3)
Rise Current
ΔT=40°C
(A) Max. (Typ.)
1.38 (1.73)
1.28 (1.60)
1.21 (1.52)
1.19 (1.49)
0.97 (1.21)
0.96 (1.20)
0.83 (1.04)
0.74 (0.93)
0.65 (0.82)
0.55 (0.69)
0.47 (0.59)
4
6
(1) Inductance is measured with a LCR meter 4284A (Agilent
Technologies) or equivalent. Test frequency at 100kHz
(2) DC Resistance is measured with a Digital Multimeter TR6871
(Advantest) or equivalent.
(3) Maximum allowable DC current is that which causes a 30%
inductance reduction from the initial value, coil temperature to rise
by 40°C, whichever is smaller.
(Reference ambient temperature 20°C)
(1)
インダクタンスはLCRメータ4284A
(Agilent
Technologies)
また
は同等品により測定する。測定周波数は100kHz。
(2)
直流抵抗はデジタルマルチメータTR6871(Advantest)または同等
品により測定する。
(3)
最大許容電流は、直流重畳電流を流した時、インダクタンスの値
が初期値より30%減少する直流電流値、またはコイルの温度が
40℃上昇する直流電流値の½れかの内、小さい値とする。
(周囲温度20℃を基準とする)
7
8
9