RM 4
Core and Accessories
Individual parts Part no. Page
Adjusting screwdriver
(for assembly only)
Matching handle B63399 189
Adjusting screw B65539 189
Core B65803 185
Clamps B65806 188
Insulating washer 1 B65804 188
Coil former B65804 187
Core B65803 185
Threaded sleeve
(glued-in)
Insulating washer 2 B65804 188
B63399 189
Example of an assembly set
Also available: RM 4 low profile:
Core B65803-P 193
Coil former B65804 194
Clamp B65804 195
Insulating washer 1 + 2 B65804 195
SMD coil former B65804 196
184 Siemens Matsushita Components
RM 4
Core
● In accordance with IEC 60431
● Core without center hole
for transformer applications
● RM cores are supplied in sets
Magnetic characteristics (per set)
with
center hole
Σ
l/A
l
e
A
e
A
min
V
e
1,9
21
11
232
Approx. weight (per set)
m
1,45 1,65 g
Gapped
Material
A
value
L
nH
K1 16 ± 3 % 1,0 24,2 B65803-+16-A1
25 ± 3 % 0,40 37,8 B65803-+25-A1
M33 40 ± 3 % 0,36 60,4 B65803-+40-A33
63 ± 3 % 0,18 95 B65803-+63-A33
N48 63 ± 3 % 0,16 95 B65803-+63-A48
100 ± 3 % 0,10 151 B65803-+100-A48
160 ± 3 % 0,06 242 B65803-+160-A48
without
center hole
1,7
22
13
11,3
286
s
approx.
mm
mm
mm
mm
mm
mm
–1
2
2
3
µ
e
Ordering code
1)
-A with center hole
-N with threaded sleeve
B65803
1) Replace the + by the code letter “A” or “N” for the required version.
Siemens Matsushita Components 185
RM 4
Core B65803
Ungapped
Material
A
value
L
µ
A
L1min
P
V
e
Ordering code
nH
nH
W/set
-J w/o center hole
N30 1900 + 30/– 20 % 2570 B65803-J-R30
T35 2800 + 40/– 30 % 3790 B65803-J-Y35
T38 3700 + 40/– 30 % 5000 B65803-J-Y38
N49 750 + 30/– 20 % 1010 450 0,04
B65803-J-R49
(50 mT, 500 kHz, 100 °C)
N87 1100 + 30/– 20 % 1480 650 0,20
B65803-J-R87
(200 mT, 100 kHz, 100 °C)
186 Siemens Matsushita Components
RM 4
Accessories
Coil former
Material: GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085:
H max. operating temperature 180 °C), color code black
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3,5 s
Winding: see page 152
Squared pins
For matching clamp and insulating washers see page188
B65804
Sections
A
mm
N
2
l
N
mm
A
valueµΩPins Ordering code
R
1 8,7 20,1 80 5 B65804-N1005-D1
6 B65804-N1006-D1
2 8,1 20,1 85 5 B65804-N1005-D2
6 B65804-N1006-D2
5 pins 6 pins
0,6+0,1
6
4+0,15
5
3
ø4,9 0,1
0,42±0,050,65±0,05
0,17,65
_
_
6,85 0,1
0,45
Hole arrangement
Lochgrupppen
View in mounting direction
Ansicht in Montagerichtung
1
2
4,4±0,3
0,2
6
1
5
4
2
3
__
0,2ø7,9
0,4±0,05
ø1+0,1
2,54
_
10
Erdungspunkte ø1,3+0,1
Ground Ø 1,3+0,1
FRM0264-E
50
Siemens Matsushita Components 187