
Fixed Inductors for Cellular Phone
Inductance Range:
1.0~47μH
SELECTION GUIDE FOR STANDARD COILS
DIMENSIONS
FEATURES
D312F
Recommended patterns
1.2 Max.
1.0
0
2
3.8 Max.
Low profile (3.8mm Max. square, 1.2mm Max. height)
Clears free-fall drop tests in which it is dropped onto a
concrete floor from a height of 1.5 m, thus meeting
requirements specified for use in cellular phones.
Features an open magnetic circuit, but its thin dimensions
result in minimum leakage flux and result in minimum
electromagnetic interference generated.
RoHS compliant.
mm
mm ax.
(Unit: mm)
0
2
3
4
Resist Zone
3.6
1.4
(Unit: mm)
(1) Inductance is measured with a LCR meter 4284A* 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, or coil temperature to rise
by 40°C, whichever is smaller.
(Reference ambient temperature 20°C)
* Agilent Technologies
* Agilent Technologies
TYPE D312F
(Quantity/reel; 2,000 PCS)
TOKO
Part
Number
Inductance
(1)
(μH)
Tolerance
(%)
DC
Resistance
(2)
(
) Max. (Typ.)
Inductance Decrease Current
(3)
(A) Max. (Typ.)
L
L
=10%
=30%
L
L
Temperature
Rise Current
(3)
T=40°C
(A) Max. (Typ.)
976AS-1R0N
976AS-1R5M
976AS-2R2M
976AS-3R3M
976AS-4R7M
1.0
1.5
2.2
3.3
4.7
±30
±20
±20
±20
±20
0.12 (0.10)
0.14 (0.12)
0.17 (0.14)
0.26 (0.22)
0.38 (0.32)
1.48 (1.97)
1.31 (1.74)
1.08 (1.44)
0.92 (1.22)
0.74 (0.98)
1.76 (2.35)
1.56 (2.08)
1.20 (1.60)
1.00 (1.34)
0.83 (1.10)
1.15 (1.36)
1.13 (1.33)
0.95 (1.12)
0.72 (0.84)
0.71 (0.83)
976AS-6R8M
976AS-8R2M
976AS-100M
976AS-120M
976AS-150M
6.8
8.2
10.0
12.0
15.0
±20
±20
±20
±20
±20
0.48 (0.40)
0.56 (0.46)
0.79 (0.66)
0.90 (0.75)
1.01 (0.84)
0.63 (0.84)
0.58 (0.78)
0.50 (0.66)
0.46 (0.62)
0.43 (0.57)
0.71 (0.95)
0.67 (0.89)
0.56 (0.74)
0.53 (0.70)
0.49 (0.65)
0.51 (0.60)
0.47 (0.55)
0.49 (0.57)
0.38 (0.45)
0.46 (0.54)
976AS-220M
976AS-270M
976AS-330M
976AS-470M
22.0
27.0
33.0
47.0
±20
±20
±20
±20
1.46 (1.22)
1.98 (1.65)
2.26 (1.88)
3.28 (2.74)
0.35 (0.46)
0.32 (0.42)
0.29 (0.39)
0.23 (0.31)
0.41 (0.54)
0.38 (0.50)
0.33 (0.44)
0.28 (0.37)
0.36 (0.43)
0.31 (0.37)
0.30 (0.36)
0.21 (0.24)