DC/DC converters
Inductors
DC/DC converters
Series/Type: B78304B*A003 Date: November 2005
7f
fÁRspp
© EPCOS AG 2005. Reproduction, pub...
Description
Inductors
DC/DC converters
Series/Type: B78304B*A003 Date: November 2005
7f
fÁRspp
© EPCOS AG 2005. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited.
Inductors DC/DC converters
Construction
■ E 6.3 ferrite core ■ With cover cap ■ 6 gullwing terminals
B78304B*A003 E 6.3
Features
■ Very small size ■ Low stray inductance,
low winding capacitance, low DC resistance Applications
■ ■ ■ ■
Pulse transformers Broadband transformers Drive transformers for power semiconductors Low-power DC/DC converters (B78304B1016A003)
Layout recommendation
Packing
■ 16-mm blister tape ■ Packing unit: 900 pcs.
Transformation ratio See table on next page
Please read Cautions and warnings at the end of this document.
2
11/05
Inductors DC/DC converters
Technical data L1 mH 0.1 ±55% 1.0 ±55% 10.0 ±55% 4.3 ±55% N1 : N2 : N3 1:1:1 1:1:1 1:1:1 1: 0.21:0.21 LS 1) μH 0.3 1.0 4.0 20.0 RDC 2) CK 3) B3dB Ω pF MHz < 0.2 < 0.9 < 6.0 < 6.0 15 30 80 — 0.05 … 60 0.03 … 23 — fr 4) MHz ≈ 9.0 ≈ 4.0 > 0.6
B78304B*A003 E 6.3
VP 5) Ordering code VAC 500 500 500 500 B78304B1030A003 B78304B1031A003 B78304B1032A003 B78304B1016A003
0.01 … 1.6 ≈ 0.2
Attenuation versus frequency
1) 2) 3) 4) 5)
Measured on 1–6, all other windings short-circuited Measured on 1–6 Capacitance winding : winding, measured 1–2 Resonance frequency of primary winding (1–6) Voltage strength winding : winding (50 Hz, 1 s)
Please read Ca...
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