SMT Power Inductor
Power Beads - PA4990 Series
Height: 12mm Max
Footprint: 10.0mm x 6.0mm Max
Current Rating: Over 100Apk
Inductance Range: 100nH to 330nH
Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C 7
Saturation Current ꢀ
(A TYP%
Inductance1
@ 0ADC
Inductance2
Irated 3
(ADC%
DCR 4
Heating Current6
(A TYP%
Part
@Irated
Number
(mΩ %
(nH 1ꢀ5%
(nH TYP%
2ꢀ°C
125
105
83
100°C
105
88
12ꢀ°C
95
PA4990.101HLT
PA4990.121HLT
PA4990.1ꢀ1HLT
PA4990.331HLT
100
120
150
330
100
120
140
300
77
77
77
32
81
0.125 10%
77
78
71
40
32
28
NOTES:
1. Inductance measured at 100kHz, 100mVrms.
7. In high volt*time applications, additional heating in the component can occur due
to core losses in the inductor which may neccessitate derating the current in order
to limit the temperature rise of the component. To determine the approximate total
losses (or temperature rise) for a given application, the coreloss and temperature rise
curves can be used.
2. Inductance at Irated is the value of the inductance at 25°C at the listed rated current.
3. The rated current as listed is either the saturation current (25°C or 100°C) or the heat-
ing current depending on which value is lower.
4. The nominal DCR is measured from point
mechanical drawing.
① to point ②, as shown below on the
8. Parts with the HLT suffix are sold in tape and reel packaging. Pulse complies to
industry standard tape and reel specification EIA-481.
5. The saturation current is the typical current which causes the inductance to drop by
20% at the stated ambient temperatures (25°C, 100°C ). This current is determined by
placing the component in the specified ambient environment and applying a short
duration pulse current (to eliminate self-heating effects) to the component.
The tape and reel for this product has a width (W=24mm), pitch (Po=16mm) and
depth (Ko=10.5mm). Samples of these parts can be ordered by removing the HLT
suffix and replacing with HL.
6. The heating current is the DC current which causes the part temperature to increase 9. The temperature of the component (ambient plus temperature rise) must be within
by approximately 40°C when used in a typical application. the stated operating temperature range.
Power.PulseElectronics.com
P854. B (08/20)
1