10/100 BASE DUAL PORT TRANSFORMERS
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
IEEE 802.3 Ethernet compatible, 100 BASE-TX
20 PIN DIP package compatible with popular IC Chips
Design for multiport repeater and Ethernet switching HUB Application
Operating temperature range : 0℃ to +70℃.
Storage temperature range: -40℃to +100℃.
BOTHHAND
USA.
Electrical Specifications @ 25℃
Isolation Voltage : 1500 Vrms
OCL(100KHz, 0.1Vrms with 8mA/DC Bias) : 350uH Min.
Leakage Inductance : 0.5uH Max.
Cw/w : 28pF Max.
DCR : 0.9Ω Max.
Rise Time : 2.5nS Typ.
Insulation Resistance: 10,000 MΩ
Part
Number
20PT1021
20PT1021A
20PT1021B
20PT1021C
20PT1021D
20PT1021E
20PT1021F
20PT1021G
20PT1021H
20PT1021J
20PT1021R
20PT1021S
20PT1021S-2
20PT1022
20PT1023
20PT1025
20PT1025A
Turn Ratio
(±5%)
Transmit
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
2CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
Receive
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
Insertion Loss
(dB Max)
0.3~100MHz
-1.15
-1.15
-1.15
-1.15
-1.15
-1.15
-1.1
-1.15
-1.15
-1.15
-1.0
-1.15
-1.15
-1.15
-1.15
-1.15
-1.15
Return Loss
(dB Min)
0.3-30MHz 30-60MHz 60-80MHz
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-14
-14
-14
-14
-14
-14
-14
-14
-14
-14
-14
-14
-14
-14
-14
-14
-14
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
Cross talk
(dB Min)
0.3-100
MH
-38
-38
-38
-38
-38
-38
-38
-38
-38
-38
-38
-38
-38
-35
-38
-38
-38
CMRR (dB Min)
Mech.
0.3-60MHz 60-100MHz
-40
-40
-40
-40
-40
-40
-40
-40
-40
-40
-40
-40
-40
-40
-40
-40
-40
-30
DP1
DP1
DP1
DP1
DP1
DP1
DP1
DP1
DP1
DP1
DP1
DP2
DP2
DP1
DP1
DP1
DP1
Note : 20PT1021S-2 Leakage Inductance : 1.3uH Max(Transmit)/0.5uH Max.(Receive)
Note:20PT1021R Leakage Inductance : 0.4 uH Max ,
Note: 20PT1021S CW/W: 25 pF Max
CW/W : 20 pF Max
Bothhand USA
.
e-mail: sales@bothhandusa.com http://www.bothhand.com
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
10/100 BASE DUAL PORT TRANSFORMERS
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
BOTHHAND
USA.
Mechanicals
DP1
DP2
Bothhand USA
.
e-mail: sales@bothhandusa.com http://www.bothhand.com
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
10/100 BASE DUAL PORT TRANSFORMERS
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
BOTHHAND
USA.
Schematics
20PT1021
20PT1021A
20PT1021B
20PT1021C
20PT1021D
20PT1021E
Bothhand USA
.
e-mail: sales@bothhandusa.com http://www.bothhand.com
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
10/100 BASE DUAL PORT TRANSFORMERS
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
20PT1021F
20PT1021G
BOTHHAND
USA.
20PT1021H
20PT1021J
Bothhand USA
.
e-mail: sales@bothhandusa.com http://www.bothhand.com
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
10/100 BASE DUAL PORT TRANSFORMERS
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
20PT1021R
20PT1021S
BOTHHAND
USA.
20PT1021S-2
20PT1022
20PT1023
20PT1025
Bothhand USA
.
e-mail: sales@bothhandusa.com http://www.bothhand.com
462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434
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