|
|
|
|
|
|
Transformer for switch mode power supplies
RM4-RM14 1,7VA up to 250VA
|
|
HF-transformer, switch mode power supply transformer, ferrite transformer
Catalogue HF-components as PDF
|
|
|
|
open |
potted |
power application |
|
Description
|
|
Performance
|
HF-transformer conform to IEC/EN61558-2-17 for SMPS
|
|
|
HF-transformer, HF-inverter, ferrite trasnformer, SMPS transformer
|
|
Application
|
Suitable as HF-transformer for power integrations (TOPSWITCH,TINYSWITCH), Advanced Techology and ST(VIPer). This size can also be built as a choke.
|
|
Voltages
|
according to customer specification, more than one input and output voltages are possible
|
|
Frequency
|
20 kHz up to 300 kHz, special types up to 500 kHz
|
|
Core material
|
N87 or PL7 for high power, with other materials it’s less power
|
|
Temperature class
|
F (155°C) if varnished and B(130°C) if potted
|
|
Temperature
|
Ambient 40°C, higher ambient temperatures decrease the power
|
|
Protective class
|
Fire class UL94V0, IP00 conform to DIN 40 050
|
|
Winding
|
with lacquered copper wire, HF litz, foil or triple insulated Furukawa wire, interlaced constrcution for best magnetic coupling
|
|
Construction
|
varnished under vacuum (open version) with class H varnish or potted under vacuum in a housing
|
|
Terminals
|
Print, SMD version or free wires
|
|
Safety
|
Margins to redeem air- and creepage distances. A screening is possible, but the secondary power will decrease.
|
|
|
|
|
|
|
|
Table Catalogue RM4-RM14 as PDF
|
|
|
Power - N87/PL7
|
|
|
Type size
|
Frequency
|
Flyback
|
Forward
|
Push-pull
|
|
|
RM
|
4
|
25
|
kHz
|
1,7
|
VA
|
2,0
|
VA
|
2,8
|
VA
|
PDF
|
|
|
|
50
|
kHz
|
2,4
|
VA
|
2,8
|
VA
|
4,0
|
VA
|
|
|
|
|
100
|
kHz
|
3,0
|
VA
|
3,5
|
VA
|
5,0
|
VA
|
|
|
RM
|
5
|
25
|
kHz
|
3,0
|
VA
|
3,5
|
VA
|
5,0
|
VA
|
PDF
|
|
|
|
50
|
kHz
|
4,5
|
VA
|
5,3
|
VA
|
7,5
|
VA
|
|
|
|
|
100
|
kHz
|
5,4
|
VA
|
6,3
|
VA
|
9,0
|
VA
|
|
|
RM
|
6
|
25
|
kHz
|
6,6
|
VA
|
7,7
|
VA
|
11,0
|
VA
|
PDF
|
|
|
|
50
|
kHz
|
9,6
|
VA
|
11,2
|
VA
|
16,0
|
VA
|
|
|
|
|
100
|
kHz
|
12,0
|
VA
|
14,0
|
VA
|
20,0
|
VA
|
|
|
RM
|
7
|
25
|
kHz
|
8,4
|
VA
|
9,8
|
VA
|
14,0
|
VA
|
PDF
|
|
|
|
50
|
kHz
|
11,4
|
VA
|
13,3
|
VA
|
19,0
|
VA
|
|
|
|
|
100
|
kHz
|
13,2
|
VA
|
15,4
|
VA
|
22,0
|
VA
|
|
|
RM
|
8
|
25
|
kHz
|
13,2
|
VA
|
15,4
|
VA
|
22,0
|
VA
|
PDF
|
|
|
|
50
|
kHz
|
19,8
|
VA
|
23,1
|
VA
|
33,0
|
VA
|
|
|
|
|
100
|
kHz
|
24,0
|
VA
|
28,0
|
VA
|
40,0
|
VA
|
|
|
RM
|
10
|
25
|
kHz
|
25,2
|
VA
|
29,4
|
VA
|
42,0
|
VA
|
PDF
|
|
|
|
50
|
kHz
|
36,0
|
VA
|
42,0
|
VA
|
60,0
|
VA
|
|
|
|
|
100
|
kHz
|
45,0
|
VA
|
52,5
|
VA
|
75,0
|
VA
|
|
|
RM
|
12
|
25
|
kHz
|
51,0
|
VA
|
59,5
|
VA
|
85,0
|
VA
|
PDF
|
|
|
|
50
|
kHz
|
72,0
|
VA
|
84,0
|
VA
|
120,0
|
VA
|
|
|
|
|
100
|
kHz
|
90,0
|
VA
|
105,0
|
VA
|
150,0
|
VA
|
|
|
RM
|
14
|
25
|
kHz
|
84,0
|
VA
|
98,0
|
VA
|
140,0
|
VA
|
PDF
|
|
|
|
50
|
kHz
|
120,0
|
VA
|
140,0
|
VA
|
200,0
|
VA
|
|
|
|
|
100
|
kHz
|
150,0
|
VA
|
175,0
|
VA
|
250,0
|
VA
|
|
|
Technical changes and optimization reserved
|
01/2010
|
|
|
|
|
|
