SM75056 - E4/STM-1 Transformer
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Features
■Small height of 5.65 mm
■Operating temperature -40 °C to +85 °C
Applications
■Telecom
Electrical Specifications @ 25 °C
OCL (1-3)
mH min. @ 10 kHz, 0.1 V ................1.2
OCL (6-8)
mH min. @ 10 kHz, 0.1 V ................1.2
OCL (1-3)
µH min. @ 10 kHz, 0.1 V,
(-40 °C to +85 °C) ..........................600
OCL (6-8)
µH min. @ 10 kHz, 0.1 V,
(-40 °C to +85 °C) ..........................600
LL(1-3)
µH max. @ 100 kHz, 0.1 V
short (16-14) ....................................0.6
LL(6-8)
µH max. @ 100 kHz, 0.1 V
short (11-9) ......................................0.6
Cww (16-1)
pF max. @ 100 kHz, 0.1 V ................30
Cww (11-6)
pF max. @ 100 kHz, 0.1 V ................30
Turns Ratio
(1-3) : (16-14) ..................1 : 1.26 ±2 %
(6-8) : (11-9) ....................1 : 1.26 ±2 %
DCR (1-3)............................0.8 ohm max.
DCR (6-8)............................0.8 ohm max.
Polarity (1, 16, 6, 11) ............Same phase
HIPOT
Between Windings................2000 VAC
Contact Area of Pins on the PCB
Minimum Total Contact Area..........5 mm2
Product Dimensions
SM75056
(DATE)
12.70
(.500)
16 9
18
MAX.
7.00
(.276)MAX.
9.40
(.370)
1.27
(.050)
0.51
(.020)
8.89
(.350)
MAX.
5.65
(.222)MAX.
16 PLCS.
DIMENSIONS ARE: MM
(INCHES)
TOLERANCE: ± 0.254
(.010)
Electrical Schematic
1
3
16
14
6
8
11
9
Soldering Profile
240 °C4 °C/S
45 S
MAX.
PREHEATING SOLDERING COOLING
150 °CCOOLING
IN STILL AIR
90 S
MAX. 30 S
MAX.
Packaging Specifications
Tape & Reel* ........................700 pcs./reel
*“E” suffix at end of part number
designates tape & reel packaging, e.g.
SM75056E.
0.25
(.010) 0 ° - 8 °
0.74 ± 0.03
(.029 ± .001)
16X
Recommended PAD layout
8.89
(.350)
8.33
(.328)
1.27
(.050)
4.45
(.075)
SM75056
YYWW
COPYRIGHT© 2003, BOURNS, INC. LITHO IN U.S.A. e 04/03 /SP0207
REV. 09/03
