Pulse Transformers

Telecom transformers can serve a variety of roles. For example, they can function as isolation transformers, preparing the voltage before transmission across telecom cables or adjusting the voltage so that it is suitable for a low-voltage application inside the home.

What are telecom transformers used for?

The telecom transformer is one of the most common and vital compone...

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TE Connectivity PCB Pulse Transformer 2:1:1 Turns Ratio, 330 mH Prim. Inductance
TE Connectivity PCB Pulse Transformer 2:1:1 Turns Ratio, 330 mH Prim. Inductance
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RS Stock No.: 788-183Brand: TE ConnectivityManufacturers Part No.: 800069-SF

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TE Connectivity
330mH
-
Pulse Transformer
-
-
0.25A
-
-
-
2:1:1
-
PCB
-
-
-
-
-
-25°C
-
-
-
75°C
17mm
-
6g
500kHz
16.7mm
RoHS
IT
40kHz
-
-
4kV
PCB Terminal
-
EPCOS Surface Pulse Transformer 1 : 0.22 :0.78 Turns Ratio, 4.1 μH Prim. Inductance, 75mΩ Prim. Resistance
EPCOS Surface Pulse Transformer 1 : 0.22 :0.78 Turns Ratio, 4.1 μH Prim. Inductance, 75mΩ Prim. Resistance
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RS Stock No.: 475-544Brand: EPCOSManufacturers Part No.: B78308X0001

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Epcos
4.1μH
-
Pulse Transformer
-
75mΩ
-
-
-
-
1 : 0.22 :0.78
-
Surface
-
-
-
-
-
-40°C
-
-
-
150°C
15.8mm
11.4mm
-
500kHz
12.90mm
IEC 60664-1, 61558-2-16
E13 EMHV
100kHz
-
-
3000V ac
-
-
EPCOS Surface Pulse Transformer 1 : 1 :8.42 Turns Ratio, 3 mH Prim. Inductance, 23Ω Prim. Resistance
EPCOS Surface Pulse Transformer 1 : 1 :8.42 Turns Ratio, 3 mH Prim. Inductance, 23Ω Prim. Resistance
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RS Stock No.: 475-545Brand: EPCOSManufacturers Part No.: B78416X0001

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Epcos
3mH
-
Pulse Transformer
-
23Ω
-
-
-
-
1 : 1 :8.42
-
Surface
-
-
-
-
-
-40°C
-
-
-
125°C
7.6mm
7.10mm
-
300kHz
8.8mm
RoHS, AEC-Q200
EP6
50kHz
-
-
200Vrms
-
-
EPCOS Surface Pulse Transformer 1:1.08 Turns Ratio, 100 μH Prim. Inductance
EPCOS Surface Pulse Transformer 1:1.08 Turns Ratio, 100 μH Prim. Inductance
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RS Stock No.: 475-543Brand: EPCOSManufacturers Part No.: B78307X0001

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Epcos
100μH
-
Pulse Transformer
-
-
-
-
-
-
1:1.08
-
Surface
-
-
-
-
-
-40°C
-
-
-
150°C
13.15mm
11.35mm
-
500kHz
11.70mm
RoHS
E10 EM
100kHz
-
-
3000V ac
-
-
Murata Power Solutions Surface Pulse Transformer 1:1 Turns Ratio, 10 mH Prim. Inductance
Murata Power Solutions Surface Pulse Transformer 1:1 Turns Ratio, 10 mH Prim. Inductance
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RS Stock No.: 279-8047Brand: Murata Power SolutionsManufacturers Part No.: 78601/9JC

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Murata Power Solutions
10mH
-
Pulse Transformer
-
-
-
-
-
-
1:1
-
Surface
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No
-
-
-
-
-
-
-
Murata Power Solutions Surface Pulse Transformer 1:1 Turns Ratio, 10 mH Prim. Inductance
Murata Power Solutions Surface Pulse Transformer 1:1 Turns Ratio, 10 mH Prim. Inductance
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RS Stock No.: 279-8049Brand: Murata Power SolutionsManufacturers Part No.: 78615/9JC

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Murata Power Solutions
10mH
-
Pulse Transformer
-
-
-
-
-
-
1:1
-
Surface
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No
-
-
-
-
-
-
-
Murata Power Solutions Surface Pulse Transformer 1:1 Turns Ratio, 10 mH Prim. Inductance
Murata Power Solutions Surface Pulse Transformer 1:1 Turns Ratio, 10 mH Prim. Inductance
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RS Stock No.: 279-8050Brand: Murata Power SolutionsManufacturers Part No.: 78615/9JC

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Murata Power Solutions
10mH
-
Pulse Transformer
-
-
-
-
-
-
1:1
-
Surface
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No
-
-
-
-
-
-
-
Murata Power Solutions Surface Pulse Transformer 1:1 Turns Ratio, 10 mH Prim. Inductance
Murata Power Solutions Surface Pulse Transformer 1:1 Turns Ratio, 10 mH Prim. Inductance
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RS Stock No.: 279-8048Brand: Murata Power SolutionsManufacturers Part No.: 78601/9JC

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Murata Power Solutions
10mH
-
Pulse Transformer
-
-
-
-
-
-
1:1
-
Surface
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No
-
-
-
-
-
-
-
Murata Power Solutions Through Hole Pulse Transformer 2:1:1 Turns Ratio, 12 mH Prim. Inductance
Murata Power Solutions Through Hole Pulse Transformer 2:1:1 Turns Ratio, 12 mH Prim. Inductance
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RS Stock No.: 279-8016Brand: Murata Power SolutionsManufacturers Part No.: 1003C

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30

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Murata Power Solutions
12mH
-
Pulse Transformer
-
-
-
-
-
-
2:1:1
-
Through Hole
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No
-
-
-
-
-
-
-
Murata Power Solutions Through Hole Pulse Transformer 2:1:1 Turns Ratio, 12 mH Prim. Inductance
Murata Power Solutions Through Hole Pulse Transformer 2:1:1 Turns Ratio, 12 mH Prim. Inductance
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RS Stock No.: 279-8017Brand: Murata Power SolutionsManufacturers Part No.: 1003C

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Murata Power Solutions
12mH
-
Pulse Transformer
-
-
-
-
-
-
2:1:1
-
Through Hole
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No
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-
-
-
-
-
-
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
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Also available in industry standard packaging
RS Stock No.: 245-8575Brand: Wurth ElektronikManufacturers Part No.: 74941300

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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
-
125°C
9.5mm
5.5mm
-
-
7.6mm
RoHS
WE‑BMS
-
-
-
1kV
-
-
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
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Also available in industry standard packaging
RS Stock No.: 245-8579Brand: Wurth ElektronikManufacturers Part No.: 74942300

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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
-
125°C
14.7mm
4.75mm
-
-
15.1mm
RoHS
WE‑BMS
-
-
-
1kV
-
-
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
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Also available in industry standard packaging
RS Stock No.: 245-8577Brand: Wurth ElektronikManufacturers Part No.: 74941302

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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
-
125°C
15.4mm
3.45mm
-
-
9.45mm
RoHS
WE‑BMS
-
-
-
1kV
-
-
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
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Also available in industry standard packaging
RS Stock No.: 245-8582Brand: Wurth ElektronikManufacturers Part No.: 74942301

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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
-
125°C
14.9mm
3.45mm
-
-
15.1mm
RoHS
WE‑BMS
-
-
-
1kV
-
-
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
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RS Stock No.: 245-8576Brand: Wurth ElektronikManufacturers Part No.: 74941302

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850

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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
-
125°C
15.4mm
3.45mm
-
-
9.45mm
RoHS
WE‑BMS
-
-
-
1kV
-
-
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
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RS Stock No.: 245-8581Brand: Wurth ElektronikManufacturers Part No.: 74942301

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550

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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
-
125°C
14.9mm
3.45mm
-
-
15.1mm
RoHS
WE‑BMS
-
-
-
1kV
-
-
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
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RS Stock No.: 245-8573Brand: Wurth ElektronikManufacturers Part No.: 74941300

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650

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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
-
125°C
9.5mm
5.5mm
-
-
7.6mm
RoHS
WE‑BMS
-
-
-
1kV
-
-
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Surface Telecom Transformer 1:1 Turns Ratio, 450 μH Prim. Inductance, 450mΩ Prim. Resistance
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RS Stock No.: 245-8578Brand: Wurth ElektronikManufacturers Part No.: 74942300

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450

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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
-
125°C
14.7mm
4.75mm
-
-
15.1mm
RoHS
WE‑BMS
-
-
-
1kV
-
-
Wurth Elektronik Telecom Transformer 1:1 Turns Ratio, 350 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Telecom Transformer 1:1 Turns Ratio, 350 μH Prim. Inductance, 450mΩ Prim. Resistance
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RS Stock No.: 245-8586Brand: Wurth ElektronikManufacturers Part No.: 749600010

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Wurth Elektronik
350μH
-
Telecom Transformer
-
450mΩ
-
-
-
-1.3dB
1:1
-
-
-
-
-
-
-
-40°C
-
-
-
125°C
-
-
-
-
-
RoHS Approval (2011/65/EU&2015/863), REACh Approval Conform or declared ((EC)1907/2006)
WE‑BMS
-
-
-
1kV
-
-
Wurth Elektronik Telecom Transformer 1:1 Turns Ratio, 350 μH Prim. Inductance, 450mΩ Prim. Resistance
Wurth Elektronik Telecom Transformer 1:1 Turns Ratio, 350 μH Prim. Inductance, 450mΩ Prim. Resistance
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RS Stock No.: 245-8585Brand: Wurth ElektronikManufacturers Part No.: 749600010

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40

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Wurth Elektronik
350μH
-
Telecom Transformer
-
450mΩ
-
-
-
-1.3dB
1:1
-
-
-
-
-
-
-
-40°C
-
-
-
125°C
-
-
-
-
-
RoHS Approval (2011/65/EU&2015/863), REACh Approval Conform or declared ((EC)1907/2006)
WE‑BMS
-
-
-
1kV
-
-

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