PT74344 - T1/CEPT/ISDN-PRI Transformer
Features
Compact surface mount packaging
Contains both transmit and receive
transformer in a single package
Isolation voltage: 1500 Vrms
Lead free version available (see How to
Order)
Lead free versions are RoHS compliant*
Applications
Telecom
Product Dimensions
Electrical Schematic
PT74344
(DATE)
0.46
(.018)
1.27
(.050)
8.89
(.350)
9.15 0.25
(.360 .010)
8.89
(.350)
1.27
(.050)
0.71
(.028)
16X
Recommended PAD layout
Coplanarity:
TYP.
8.38
(.330)
1.91
(.075)
TYP.
0.38
(.015)
TYP.
1.02
(.040)
TYP.
12.83
(.505)
MAX.
7.1
(.280)
.102
(.004)
MAX.
6.22
(.245)
MAX.
1
2
3
16
14
6
7
8
11
10
9
NOTE: DIMENSIONS ARE EXCLUSIVE OF SOLDER
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCE:
0.25
(.010)
Electrical Specifications @ 25 C
Turns Ratio 5 %
............................1:1.15CT & 1CT:2CT
Primary Inductance (mH min.)
..........................................1.20 & 1.20
Primary Leakage Inductance (H max.)
..........................................0.60 & 0.60
Cww (pF max.) ............................30 & 30
Pri DCR ( max.) ....................0.70 & 0.70
Sec DCR ( max.) ..................0.70 & 1.00
Primary Pins ............................16-14, 6-8
Operating Temperature (C) ........0 to +70
*CT : center tap
Packaging Specifications
Tape and Reel* ....................700 pcs./reel
*"E" suffix in part number designates
tape & reel packaging, e.g. PT74344E.
*RoHS COMPLIANT
VERSIONS
AVAILABLE
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
03/05
How to Order
PT74344E __
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)
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