Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
MODEM MAGNETICS
©2000 Bel Fuse Inc. Specifications subject to change without notice. 05.00
TM00404
T4-9
PCMCIA V.90 Transformers
• Designed to match a 600Ω line to a 290Ω load while
providing isolation and balance in PCMCIA Type II
V.90 modem applications
• Approved by UL and CSA
• Minimum interwinding breakdown voltage of 1000 Vrms
• Qualified per Bellcore TR-TSY-000357-1
SCHEMATIC
ELECTRICAL SPECIFICATIONS AT 25° C
1
3
6
4
Primary Secondary
TYPICAL SPICE TRANSMISSION MODEL
1.4 mH
145
20 pF 25 k 3.0 H 20 pF
175
1
3
6
4
2786A
2786A3
2786A5
traP rebmuN oitaRsnruT %2±
noitresnI ssoL Bd
ssoLnruteR Bd
ycneuqerF esnopseR Bd
RCDΩΩ
Ω
ΩΩxam
cinomraH noitrotsiD Bd
lanidutignoL ecnalaB Bd
zHk1@ zH0053-zH003 zHk5-zH002 irP ceS ,mBd01- zH006 zH0053-zH003
A68721:1<9.2>03<1.0561002>58>06
3A68721:1<
9.2>03<1.0561002>58>06
5A68721:1<
9.2>03<1.0561002>58>06