PT74344 Datasheet, PDF (1/1 Pages) Bourns Electronic Solutions – T1/CEPT/ISDN-PRI Transformer

*RoHS ^{VCEOARMVSAPIOILLINAASBNLTE}
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
PT74344 - T1/CEPT/ISDN-PRI Transformer
Electrical Specifications @ 25 °C
Turns Ratio ±5 %
............................1:1.15CT & 1CT:2CT
Primary Inductance (mH min.)
..........................................1.20 & 1.20
Primary Leakage Inductance (µH max.)
..........................................0.60 & 0.60
Cww (pF max.) ............................30 & 30
Pri DCR (Ω max.) ....................0.70 & 0.70
Sec DCR (Ω 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.
Product Dimensions
PT74344
(DATE)
6.22
(.245)
MAX.
1.27
(.050)
0.46
(.018)
TYP.
12.83
(.505)
MAX.
8.89
(.350)
7.1
(.280)
MAX.
0.38
(.015)
TYP.
1.02
(.040)
TYP.
Coplanarity:
.102
(.004)
9.15 ± 0.25
(.360 ± .010)
8.89
(.350)
1.91
(.075)
1.27
(.050)
8.38
(.330)
16X _{(0.0.7218)TYP.}
Recommended PAD layout
Electrical Schematic
1
16
2
3
14
6
11
7
10
8
9
How to Order
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)
PT74344E __
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCE: ± ^0.25
(.010)
NOTE: DIMENSIONS ARE EXCLUSIVE OF SOLDER
03/05
*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.