SCR74B
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1. Magnetically shielded construction
2 Excellent Power Density
3 Engineered to Provide High Efficiency
ELECTRICAL CHARACTERISTICS
Part Number
Inductance
(uH)
(1)
Test
Frequency
DC Resistance
(Ω MAX)
(2)
Saturation
Current
Temperature
Current
SCR74B-100 10 2.52KHZ 0.07 1.65 3.30
SCR74B-120 12 2.52KHZ 0.07 1.57 3.00
SCR74B-150 15 2.52KHZ 0.08 1.39 2.70
SCR74B-180 18 2.52KHZ 0.10 1.29 2.43
SCR74B-220 22 2.52KHZ 0.13 1.12 2.18
SCR74B-270 27 2.52KHZ 0.16 1.06 1.96
SCR74B-330 33 2.52KHZ 0.18 0.97 1.74
SCR74B-390 39 2.52KHZ 0.18 0.91 1.64
SCR74B-470 47 2.52KHZ 0.27 0.80 1.55
SCR74B-560 56 2.52KHZ 0.29 0.76 1.47
SCR74B-680 68 2.52KHZ 0.33 0.68 1.32
SCR74B-820 82 2.52KHZ 0.43 0.62 1.20
SCR74B-101 100 1KHZ 0.49 0.55 1.14
SCR74B-121 120 1KHZ 0.68 0.49 1.08
SCR74B-151 150 1KHZ 0.94 0.44 0.97
SCR74B-181 180 1KHZ 1.00 0.40 0.87
SCR74B-221 220 1KHZ 1.18 0.36 0.78
SCR74B-271 270 1KHZ 1.30 0.33 0.70
(1). Inductance tolerance±20% tested at 0.25V, 0ADC and 25℃
(2). DCR measured at 25℃.
(3). The DC current at which the inductance decreases by 10% from its initial value.
(4). The DC current that results in a 40℃ temperature rise from 25℃ ambient.
(3)
(4)
MARKING
XXX
0. 1
1
10
100
1000
100
1000
10000
10
BCR74B I nduct ance decr ease by cur r ent
I nduct ance( uH)
DC c u r r e n t ( mA)
271
470
100
500
1000
1500
2000
2500
3000
3500
0
4000
70
BCR74B Temper at ur e r i se by cur r ent
Temper at ur e r i se ℃
DC cur r ent ( mA)
80
50
60
40
20
30
10
4500 5000
271
470
100
SCR74B Inductance decrease by current
SCR74B Temperature rise by current
DC current (mA)
DC current (mA)
Custom versions available upon request.
©2011 Signal Transformer –Specification subject to change without notice. 07.11
