PT74344L Series

PL
IA
N
T
Features
M
■ Compact surface mount packaging
■ Contains both transmit and receive
CO
*R
oH
S
This series is OBSOLETEAND
not recommended for new designs.
transformer in a single package
PT
YY 7434
WW 4L
■ Isolation voltage: 1500 Vrms
■ RoHS compliant*
Applications
■ Telecom
PT74344L - 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
Electrical Schematic
1
Product Dimensions
16
PT74344L
2
(DATE)
3
14
6
11
0.46
TYP.
(.018)
7
10
12.83
MAX.
(.505)
8
9
6.22
MAX.
(.245)
E
T
E
L
O
S
B
O
1.27
(.050)
Packaging Specifications
Tape and Reel* .................. 700 pcs./reel
*”E” suffix before “L” in part number
designates tape & reel packaging, e.g.
PT74344EL.
How To Order
1.02
TYP.
(.040)
PT74344E L
Model
Termination
L = Tin only (RoHS Compliant)
16X
0.38
TYP.
(.015)
8.89
(.350)
7.1
MAX.
(.280)
.102
Coplanarity: (.004)
9.15 ± 0.25
(.360 ± .010)
8.89
(.350)
1.91
(.075)
1.27
(.050)
8.38
(.330)
0.71
TYP.
(.028)
Recommended PAD layout
DIMENSIONS:
MM
(INCHES)
TOLERANCES: ±
0.25
(.010)
NOTE: DIMENSIONS ARE EXCLUSIVE OF SOLDER
REV. 05/13
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.