Switch mode power transformers format E16 & EL19, 1 W → 16 W
Transformers forming the core of a switch mode power supply, in association with a specialist circuit (VIPer, TOPSwitch, CoolSet, or control circuit + Mosfet).
The secondaries can be connected in series.
Materials comply with UL94-V0.
Technical specifications
Input voltage:
85 → 265 Veff
Primary reflected voltage:
90 → 120 V
P / S insulation voltage:
≥ 3750 V eff
Creepage path:
≥ 6 mm
Air temperature
≤ 50 °C
Dimensions (mm):
E16:
18 x 16 x 17.5
E19:
21 x 17 x 31
ref. Myrra
Format
Primary inductance
Associated integrated circuits
7400
E16
3900 μH
TOP221, VIPer20
74001
E16
3000 μH
TOP221, VIPer20, TDA716831
74002
E16
3000 μH
TOP221, VIPer20, TDA716831
74003
E16
3000 μH
TOP221, VIPer20, TDA716831
74010
E16
1660 μH
TOP222, VIPer20, TDA716831
74020
EL19
1250 μH
VIPer20, VIPer50,TDA716832
74021
EL19
900 μH
TOP223, VIPer20, TDA716832
ref. Myrra
Max.
output
Secondary 1
Vmin - Vmax / Imax
Secondary 2
Vmin - Vmax / Imax
74000
4 W
3.3 → 7 V / 1.2 A
8 → 17 V / 0.35 A
74001
6 W
3 → 6 V / 1.2 A
-
74002
6 W
9 → 18 V / 0.5 A
-
74003
6 W
2 → 4 V / 1.8 A
3 → 6 V / 1.2 A
74010
10 W
3.3 → 7 V / 2 A
8 →17 V / 0.85 A
74020
16 W
4 → 7 V / 3 A
10 → 17 V / 1.4 A
74021
16 W
3.3 → 7 V / 3 A
8 → 16.5 V / 1.4 A
Standards
IEC 950, IEC 61558 for reinforced insulation
Open Frame - Laminated
PCB mounting mains transformers with a single 230Va.c. or twin 115Va.c. 50/60Hz primary winding. Independent secondary windings may be connected in series or parallel to give a wide range of output voltage and current options.
Double section metric bobbin construction
Full varnish impregnation
Technical specifications
VA
regulation
dimensions (mm)
pins (mm)
weight
nominal
typ...