B78419 Datasheet, PDF (5/8 Pages) TDK Electronics – SMT Current Sense Transformers

SMT Current Sense Transformers
EP 10 Core
B78419
=
With:
,
,^×
××
Maximum magnetic flux density in the ferrite core of the current sense transformer
Maximum output voltage of the measurement signal
Maximum duty cycle
Number of turns of the secondary winding of the current sense transformer
Effective magnetic area of the ferrite core
Operating frequency of the switching operator IC
Typical value for : 10.7 x 10-6 m²
Typical : < 220 mT
=
With:
,
,
,^×
,
Resistance of burden resistor
Maximum output voltage of the measurement signal
Number of turns on the secondary side of the CST
Maximum primary current (peak current)
Characteristics and ordering codes
L_min
(5-4)
mH
1.7
3.0
7.0
11.0
25.0
Turns
Ratio
Np : Ns
1:50
1:70
1:100
1:125
1:180
Voltage-
C_p
time product
+120°C
V · µs
pF
117
4
164
4
235
4
294
4
423
4
R_max R_max Recommended Ordering Code
(1-2) (4-5) R_T
mΩ Ω
Ω
0.5 1.5
50
0.5 2.1
70
0.5 3.1 100
0.5 4.0 125
0.5 7.4 180
B78419A2288A003
B78419A2289A003
B78419A2251A003
B78419A2290A003
B78419A2271A003
MAG TF T PD
Please read Cautions and warnings and
Important notes at the end of this document.
Page 5 of 8
2015-11-25