10/100 Base TX Transformer
Designed for general Chipsets
Model No.: 20PMT03
Feature:
Designed to meet IEEE802.3u Requirement.
Designed to meet IR 235 Degree C Peak Requirement.
Specifications
: At 25 degree C.
1. Primary inductance (Lp): 350碌H min. @ 100Khz/100mV/8mAdc bias.
2. Leakage inductance (L
L
): 0.9碌H max. @ 100Khz/100mV.
3. Primary Capacitance (Cww): 18pf max.
4. Turn Ratio: TX: 1CT:1CT, RX: 1CT:1CT
Insertion
Loss
(dB max)
1-125MHz
-1.1
Rise Time
(ns typical)
Return Loss
(dB typical)
MHz
0.1-60
60-100
-18TX
/-17RX
-13TX
/-15RX
CMRR
(dB min)
MHz
0.1-60
60-100
-42TX
/40RX
-40TX
/-35RX
Crosstalk
(dB min)
MHz
0.1-60
60-100
-40
-38
YCL
Parts no.
Isolation
Voltage
(Vrms min)
20PMT03
2.5
1500
Dimension: mm(inch)
+/-0.25(0.010)
9.40(0.370)
6.35
(0.250)
1
17.78(0.700
2.54(0.100
1.02
(0.040)
2.54
(0.100)
17.02
(0.670)
25.40(1.000
2.54(0.100
17.78(0.700
16.00(0.630)
Suggested footprint
Schematic:
RD- 1
16 RX-
15 CT
RD+ 3
CT 4
13 RX+
TD+ 8
CT 5
TD- 6
12 TX-
10 CMT
9 TX+
Prepared: Dennis Hsieh
Drawing no.: 20PMT03
Approved: Jess Kuo
REV: 0
Date: Mar 31,1997.
Page: 1 / 1
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