2798A

Part No.:
2798A
Download:
Download
Description:
ISDN MAGNETICS Dual S Interface Transformers
File Size:
39 K
Page:
2 Pages
Logo:
Maker:
BEL [ BEL FUSE INC. ]
PCB Prototype

July 16, 2018:

2BHR44VUSMT

2M100Z

2SC4132

2W02

3030800042

3094

31-4237

31-5607

356006

39-03-6064

410-97-216-41-001

41662-0027

PCB Datasheet:1PCB Datasheet:1
ISDN MAGNETICS
Dual S Interface Transformers
Meet requirements for pulse template and impedance
template according to ITU-T (CCITT I.430)
UL and CSA approved
Qualified per Bellcore TR-TSY-000357-1
TM9937
Minimum interwinding breakdown voltage of 1500 Vrms
Operating temperature range 0° C to 85° C
ELECTRICAL SPECIFICATIONS at 25° C
DCR
max
Part Number
Turns Ratio
± 2%
Primary
Inductance
mH min
Leakage
Inductance
µ
H max
Pri
Interwinding
Capacitance
pF max
Sec
7.5
6.0
4.45
6.0
3.5
100
100
100
100
100
Distributed
Parallel
Capacitance
pF max
2798A
2798B
2798C
2798D
2798E
1.0 : 2.5
1.0 : 2.0
1.0 : 2.0
1.0 : 2.0
1.0 : 1.0
22.0
22.0
22.0
22.0
22.0
5.0
5.0
3.75
2.5
5.0
3.5
3.5
2.25
3.5
3.5
100
100
80
100
40
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SCHEMATIC
2798A
2798B
2798C
2798D
2798E
1
T1
16
2798A
Lucent
2
3
15
14
2798B
Lucent
4
T2
5
13
Siemens
12
2798C
Mitel
National
Semiconductor
6
7
11
10
2798D
AMD
2798E
Motorola
8
9
Primary
Secondary
©1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T326