Ferrites and accessories
RM 7, RM 7 LP
Core and accessories
Series/Type:
Date:
B65819, B65820, B65808, B65659
February 2016
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EPCOS AG 2016. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS’ prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
RM 7
Core and accessories
Individual parts
Adjusting screw
Part no.
B65659
Page
6
Core
Clamps
B65819
B65820
3
5
Insulating washer 1
Coil former
B65820
B65820
5
4
Core
B65819
3
Threaded sleeve (glued-in)
Insulating washer 2
B65820
5
Example of an assembly set
Also available:
RM 7 low profile:
Core
B65819P
7
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
02/16
RM 7
Core
■
To IEC 62317-4
■
Core without center hole
B65819
for transformer applications
■
Delivery mode: sets
Magnetic characteristics
(per set)
with
center hole
l/A
l
e
A
e
A
min
V
e
0.75
29.8
40
1190
without
center hole
0.7
30.4
43
39
1310
mm
–1
mm
mm
2
mm
2
mm
3
Approx. weight
(per set)
m
6.5
7.2
g
Gapped
Material
A
L
value
s
approx.
mm
0.30
0.18
0.16
0.12
90
141
148
187
e
nH
N41
N48
160 5%
250 5%
250 3%
315 3%
Ordering code
1)
-A with center hole
-N with threaded sleeve
-J without center hole
B65819J0160J041
B65819J0250J041
B65819+0250A048
B65819+0315A048
Ungapped
Material
A
L
value
nH
N30
T38
N49
N87
N97
5000 +30/–20% 2810
10000 +40/–30% 5630
1900 +30/–20% 1070
2700 +30/–20% 1520
2700 +30/–20% 1520
< 0.22 ( 50 mT, 500 kHz, 100 C)
< 0.77 (200 mT, 100 kHz, 100 C)
< 0.58 (200 mT, 100 kHz, 100 C)
e
P
V
W/set
Ordering code
-J without center hole
B65819J0000R030
B65819J0000Y038
B65819J0000R049
B65819J0000R087
B65819J0000R097
1) Replace the + by the code letter “A” or “N” for the required version.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
02/16
RM 7
Accessories
Coil former
GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085:
H max. operating temperature 155 C), color code black
Sumikon PM 9630
®
E41429 (M) , SUMITOMO BAKELITE CO LTD
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 Data Book 2013, chapter “Processing notes, 2.1”
Squared pins.
For matching clamp and insulating washers see page 5.
Sections
1
2
A
N
mm
2
22.4
21.9
l
N
mm
36.0
36.0
A
R
value
55.4
56.5
Pins
8
8
Ordering code
B65820W1008D001
B65820W1008D002
Material:
B65820
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
02/16
RM 7
Accessories
Clamp
■
With ground terminal, made of spring steel (tinned), 0.4 mm thick
■
Solderability to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 C, 2 s
B65820
Insulating washer 1
between core and coil former
■
For tolerance compensation and for insulation
■
Made of polycarbonate (UL 94 V-0, insulation class to IEC 60085: E
120 C), 0.08 mm thick
Aryphan F685, E167358 (M) , natural color, LOFO HIGH TECH FILM GMBH
Insulating washer 2
for double-clad PCBs
■
Made of polycarbonate (UL 94 V-0, insulation class to IEC 60085: E
120 C), 0.3 mm thick
Makrofol FR7-2, E118859 (M) , natural color, BAYER MATERIALSCIENCE AG
Ordering code
Clamp (ordering code per piece, 2 are required)
Insulating washer 1 (reel packing, PU = 1 reel)
Insulating washer 2 (bulk)
Clamp
Insulating washer 1
(preliminary data)
B65820B2001X000
B65820A5000X000
B65820D2005X000
Insulating washer 2
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
02/16
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