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
TOKO [ TOKO, INC ]
