Dual Port SMD 10/100Base-T Isolation Transformer Modules
Features
• Low profile and light weight 10/100 BaseT modules facilitate
pick and place compatability and speed of placement
• Meets requirements of IEEE 802.3u and ANSIX3.263
• Consistent and reliable coplanarity
• Excellent quality at extremely competitive price due to high
volume production
• Manufactured in an ISO-9001:2000, TS-16949:2002
and ISO-14001:2004 certified Talema facility
• Fully RoHS compliant and meets lead free reflow
level J-STD-020C
Electrical Specifications @ 25°C
Inductance: 350µH minimum @ 100kHz, 100mV, 8mA
Leakage Inductance: 0.4µH @ 1MHz
CW/W: 20pF typical
Minimum isolation voltage: 1500 Vrms
Operating Temperature Range: -40°C to +85°C
Storage Temperature: -40°C to +125°C
Standard Packing: Tape and Reel
Quality and consistency is guaranteed through 100% testing of the specified parameters for primary inductance, leakage
inductance, turns ratio, DC resistance and interwinding capacitance.This ensures that the return loss and pulse wave shape
requirements can be fully maintained. Additionally, all parts are tested for 1500V minimum isolation.
Applications
Talema 10/100BaseT Dual transformer modules contain transmit and receive isolation transformers to maintain consistant
wave shape and suppression of common mode noise while providing equipment isolation per IEEE 802.3. High impedance
common mode quad chokes for additional EMI suppression have been added on some models as required for FCC and
CISPR 22 Class B certification.
TED Series - SMD Dual Port 10/100Base-T Isolation Transformer Modules
Differential to
Insertion
Loss
(dB Typ)
Turns Ratio
±2%
Return Loss
(dB Min)
Crosstalk
(dB Typ)
Common Mode
Rejection (dB
Typ)
Part Number
Schematic
0.1 - 100
MHz
2-30
MHz
40
MHz
50
MHz
60-80
MHz
1
30
60
100
1-60
MHz
60-200
MHz
Tx
Rx
MHz MHz MHz MHz
TED-100A
TED-104A
TED-100B
TED-200A-J
TED-200B-J
TED-200C-J
TED-200E-J
TED-200G-J
TED-200H-J
TED-300A
TED-300B
TED-300C
TED-300D
TED-400D
1ct:1ct 1ct:1ct
2ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
1ct:1ct 1ct:1ct
-1.2
-1.2
-1.1
-1.2
-0.5
-0.5
-1.0
-0.5
-0.5
-1.1
-1.1
-1.2
-1.2
-1.2
-18
-18
-18
-16
-21
-21
-16
-21
-21
-18
-18
-18
-18
-16
-16
-16
-16
-14
-17
-17
-14.4
-17
-17
-16
-16
-16
-16
-14
-14
-14
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-10
-50
-50
-35
-50
-65
-65
-50
-65
-65
-50
-50
-60
-60
-55
-42
-42
-35
-45
-55
-55
-45
-55
-55
-42
-44
-45
-45
-45
-40
-40
-35
-40
-45
-45
-40
-45
-45
-38
-39
-40
-40
-40
-35
-35
-35
-35
-35
-35
-35
-35
-35
-33
-35
-35
-35
-35
-39
-39
-33
-33
A
A
B
A
B
C
E
G
H
A
B
C
D
D
-14
-13
-37
-45
-40
-37
-53
-45
-39
-37
-45
-45
-30
-33
-35
-30
-33
-40
-35
-33
-30
-35
-35
-30
-14.5
-14.5
-13
-14.5
-14.5
-14
-14
-14
-14
-13.5
Dimensions and Schematics on following pages
THE TALEMA GROUP
•
World Wide Toroidal Specialists
THE TALEMA GROUP • Magnetic Components for ISDN / xDSL / LAN Data Communications