Datasheet

Features
■ Compliant with IEEE802.3 standards
■ Designed for 10/100 Base-Tx and PoE
■ RoHS compliant*
Applications
■ VoIP
■ Power over Ethernet - PoE
SM51108PEL LAN 10/100 Base-Tx VoIP Transformer (PoE) Modules
Turns Ratio (±3 %) ...................1CT:1CT
OCL (@100 kHz,
0.1 V, 8 mA, DC Bias) ..... 350 μH min.
Leakage Inductance
(@100 kHz, 0.1 V
with 1-2-3-6-7-8 Short)
9-11 = 14-16 .................... 0.5 μH max.
Cw/w @ 100 kHz, 0.1 V .......35 pF max.
DCR
1-3 = 6-8 ........................ 0.8 ohm max.
9-11 = 14-16 .................. 1.1 ohm max.
Insertion Loss
1-100 MHz .......................-1.2 dB max.
Return Loss (@ 100 Ohms)
1-30 MHz ...........................-16 dB min.
40 MHz ..............................-14 dB min.
50 MHz ..............................-13 dB min.
60-80 MHz .........................-12 dB min.
Cross Talk
60 MHz ..............................-40 dB min.
100 MHz ............................-35 dB min.
DCMRR
30 MHz ..............................-43 dB min.
60 MHz ..............................-37 dB min.
100 MHz ............................-33 dB min.
PoE Current ...................... Up to 350 mA
Hi-Pot Test .............................1500 Vrms
Operating Temperature Range
..................................-40 °C to +85 °C
Storage Temperature Range
................................-25 °C to +125 °C
Tape & Reel ....................... 600 pcs./reel
Product Dimensions
Recommended Layout
*RoHS COMPLIANT
How To Order
SM51108 P E L
Model
Construction
P = Potted
Packaging
E = Tape and Reel (600 pcs./reel)
Termination
L = Tin (RoHS Compliant)
8.89
(0.350)
12.80
(0.504)
0.46
(0.018)
0.70 ± 0.15
(0.028 ± 0.006)
1.27
(0.050)
PIN 1
DOT
0.25 ± 0.13
(0.010 ± 0.005)
0.30
(0.012)
5.65
(0.222)
0 ° – 8 °
BOURNS
SM51108PL
YYWW
6.90
(0.272)
9.30
(0.366)
0.76
(0.030)
MM
(INCHES)
DIMENSIONS:
±0.25
(±0.010)
TOLERANCES:
8.89
(0.350)
1.27
(0.050)
7.10
(0.280)
10.50
(0.413)
Electrical Schematic
1TD+
3TD-
2
16
14
CT
TX1+
TX1-
6RD+
8RD-
7
11
9
CT
RX1+
RX-
10 CT
15 CT
Tel: [phone] • Email: [e-mail]
EMEA: Tel: [phone] • Email: [e-mail]
The Americas: Tel: [phone] • Email: [e-mail]
www.bourns.com
Moisture Sensitivity Level ..................... 1
................. N/A
*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. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov