D312C Series
SURFACE MOUNT FIXED INDUCTOR
TYPE D312C
Inductance Range:
1.5 - 68µH
Frequency Range:
0.1 - 1MHz
Description
The TOKO D312C Series is an extremely low profile surface mount
fixed inductor with a maximum height of 1.2mm. The product is
magnetically shielded and designed for space constrained DC-DC
converter applications in portable platforms including wireless
handsets, PDA's, and consumer electronics.
Features
•
•
•
•
•
•
3.6mm x 3.6mm footprint (±0.2mm)
1.2mm maximum height
Magnetically shielded
Reflow solderable
Packaged on 2000 piece reels
Lead-free terminations
Dimensions & Recommended Patterns:
3.6
3.6
±0.2
1.2 Max.
1.4
3.6
±0.2
4.2
(1) Inductance is measured by LCR-meter 4284A (Agilent) or equivalent.
(2) DC resistance is measured by Digital Multimeter TR6871
(Advantest) or equivalent.
(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). Rated DC
current for a 10% inductance reduction is provided as well.
Resist Zone
3.6
2.0
STANDARD PARTS SELECTION GUIDE
0.5
Unit: mm
TYPE D312C
TOKO
Part
Number
1001AS-1R5M=P5
1001AS-2R2M=P5
1001AS-2R7M=P5
1001AS-3R3M=P5
1001AS-3R9M=P5
1001AS-4R7M=P5
1001AS-6R8M=P5
1001AS-8R2M=P5
1001AS-100M=P5
1001AS-120M=P5
1001AS-150M=P5
1001AS-220M=P5
1001AS-270M=P5
1001AS-330M=P5
1001AS-390M=P5
1001AS-470M=P5
1001AS-680M=P5
Inductance
(1)
(µH)
Tolerance
(%)
DC
(2)
Resistance
(
Ω
) max.
0.12
0.14
0.18
0.20
0.23
0.24
0.31
0.43
0.48
0.66
0.80
1.14
1.37
1.47
1.77
2.14
3.33
Inductance
(3)
Decrease Current
-30% (A)
-10% (A)
max.
max.
1.29
1.10
1.14
0.96
0.98
0.82
0.90
0.74
0.83
0.68
0.79
0.65
0.68
0.54
0.62
0.50
0.56
0.46
0.50
0.40
0.45
0.36
0.38
0.30
0.33
0.26
0.32
0.25
0.29
0.23
0.26
0.20
0.21
0.16
Temperature
(3)
Rise Current
+40°C
∆T
(A)
max.
1.11
1.00
0.91
0.90
0.87
0.83
0.80
0.63
0.61
0.48
0.47
0.37
0.36
0.35
0.34
0.31
0.24
1.5
2.2
2.7
3.3
3.9
4.7
6.8
8.2
10
12
15
22
27
33
39
47
68
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
Note:
=P5
is added to each part number to indicate tape and reel packaging.
January 2005
© 2005 TOKO America, Inc.
All Rights Reserved
Printed in USA
CF-268-D312C
R-LOG0105A
1
D312C Series
SURFACE MOUNT FIXED INDUCTOR
TYPICAL CHARACTERISTICS
1001AS-270M (27µH)
30
1001AS-470M (47µH)
50
Inductance (µH)
25
20
15
10
5
0
0
100
200
300
400
Inductance (µH)
40
30
20
10
0
0
50
100
150
200
250
300
350
DC Current (mA)
DC Current (mA)
1001AS-330M (33µH)
35
80
1001AS-680M (68µH)
70
60
50
40
30
20
10
0
0
50
100
150
200
250
300
Inductance (µH)
25
20
15
10
5
0
0
100
200
300
400
DC Current (mA)
Inductance (µH)
30
DC Current (mA)
1001AS-390M (39µH)
Inductance (µH)
40
30
20
10
0
0
100
200
300
400
DC Current (mA)
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture
of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents
or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
TOKO America, Inc.
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864 Web: http://www.tokoam.com
January 2005
© 2005 TOKO America, Inc.
All Rights Reserved
Printed in USA
4
CF-268-D312C
R-LOG0105A
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
