DSL Magnetics
RM5 Through-Hole Inductors
•
Designed with two well balanced and coupled windings
for use in ADSL applications where filtering is required
Withstand 100A surge of 10/700 µs pulse
Operating temperature range: -40° C to +85° C
•
•
•
•
•
Meets IEC 695, 2-2 flammability requirements
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
Reliability testing: shock, vibration, temperature cycling,
temperature - humidity - bias
TM00332
ELECTRICAL SPECIFICATIONS AT 25° C
Turns
Ratio
1
±2%
Part Number
(1-3) : (4-2)
(1-3)
(1-3)
min
2.85
4
2.3
4
4.1
4
7.3
5
(1-3)
(4-2)
(1-3)
between
(1-3) & (4-2) and
1, 2, & cores
1000
1000
1000
1000
Inductance
2
mH
DCR
Ω
Leakage
Inductance
3
µH max
Dielectric Rating
Vrms
1797A
1797B
1797C
1797D
1:1
1:1
1:1
1:1
3 - 3.3
2.4 - 2.65
4.3 - 4.73
7.6 - 8.4
2.1 - 2.7
3.0 - 3.6
4.0 - 5.1
4.3 - 5.8
2.1 - 2.7
3.0 - 3.6
4.0 - 5.1
4.3 - 5.8
5
5
6
6
1. measured at 20 kHz, 1 Vrms
2. measured at 10 kHz, 0.1 Vrms
3. measured at 100 kHz, 0.1 Vrms
4. measured at 10 kHz, 0.1 Vrms, 100 mA DC
5. measured at 10 kHz, 0.1 Vrms, 40 mA DC
SCHEMATIC
1797A
1797B
1797C
1797D
1
4
3
2
©2000 Bel Fuse Inc. Specifications subject to change without notice. 07.00
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T3-81
DSL Magnetics
TM00332
RM5 Through-Hole Inductors
MECHANICAL
1797A
1797B
1797C
1797D
LAYOUT OF HOLES
VIEWED FROM COMPONENT SIDE OF PWB
0.650
(16.51)
MAX
1 4
1
3
0.540
(13.72)
MAX
Ø0.043
(1.09)
TYP
0.100
(2.54)
TYP
2
2
3
0.100
(2.54)
TYP
0.430
(10.92)
MAX
0.018 (0.46) X 0.012 (0.3) TYP
(SK7, SOLDER COATED)
0.016 (0.41) SQ TYP
(COPPER-PLATED STEEL,
SOLDER COATED)
0.126 (3.20)
©2000 Bel Fuse Inc. Specifications subject to change without notice. 07.00
CORPORATE
Bel Fuse Inc.
198 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
FAR EAST
Bel Fuse Ltd.
8F / 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
EUROPE
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com
T3-82
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