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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EPCOS Surface Telecom Transformer 1 : 0.22 :0.78 Turns Ratio, 4.1 μH Prim. Inductance, 75mΩ Prim. Resistance
EPCOS Surface Telecom 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

€ 72.65

€ 72.65 Each (Exc. VAT)

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1

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1€ 72.65
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Epcos
-
Telecom Transformer
4.1μH
-
75mΩ
-
-
-
-
-
1 : 0.22 :0.78
-
Surface
-
-
-
-
-
-40°C
-
-
150°C
12.90 mm
15.8mm
11.4mm
-
500kHz
IEC 60664-1, 61558-2-16
E13 EMHV
100kHz
-
-
3000V ac
-
-
EPCOS Surface Telecom Transformer 1 : 1 :8.42 Turns Ratio, 3 mH Prim. Inductance, 23Ω Prim. Resistance
EPCOS Surface Telecom 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

€ 72.65

€ 72.65 Each (Exc. VAT)

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1

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1€ 72.65
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Epcos
-
Telecom Transformer
3mH
-
23Ω
-
-
-
-
-
1 : 1 :8.42
-
Surface
-
-
-
-
-
-40°C
-
-
125°C
8.8 mm
7.6mm
7.10mm
-
300kHz
RoHS, AEC-Q200
EP6
50kHz
-
-
200Vrms
-
-
EPCOS Surface Telecom Transformer 1:1.08 Turns Ratio, 100 μH Prim. Inductance
EPCOS Surface Telecom Transformer 1:1.08 Turns Ratio, 100 μH Prim. Inductance
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RS Stock No.: 475-543Brand: EPCOSManufacturers Part No.: B78307X0001

€ 75.56

€ 75.56 Each (Exc. VAT)

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1

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1€ 75.56
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Epcos
-
Telecom Transformer
100μH
-
-
-
-
-
-
-
1:1.08
-
Surface
-
-
-
-
-
-40°C
-
-
150°C
11.70 mm
13.15mm
11.35mm
-
500kHz
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

€ 163.43

€ 3.269 Each (In a Tube of 50) (Exc. VAT)

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50

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50€ 3.269
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Murata Power Solutions
-
Pulse Transformer
10mH
-
-
-
-
-
-
-
1:1
-
Surface
-
-
-
-
-
-
-
-
-
-
-
-
-
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No
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-
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-
-
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-
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

€ 163.43

€ 3.269 Each (In a Tube of 50) (Exc. VAT)

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50

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50€ 3.269
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Murata Power Solutions
-
Pulse Transformer
10mH
-
-
-
-
-
-
-
1:1
-
Surface
-
-
-
-
-
-
-
-
-
-
-
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No
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-
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-
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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

€ 3.98

€ 3.98 Each (Exc. VAT)

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1€ 3.98
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Murata Power Solutions
-
Pulse Transformer
10mH
-
-
-
-
-
-
-
1:1
-
Surface
-
-
-
-
-
-
-
-
-
-
-
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No
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-
-
-
-
-
-
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

€ 6.21

€ 6.21 Each (Exc. VAT)

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1

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1€ 6.21
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Murata Power Solutions
-
Pulse Transformer
10mH
-
-
-
-
-
-
-
1:1
-
Surface
-
-
-
-
-
-
-
-
-
-
-
-
-
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No
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-
-
-
-
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-
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

€ 323.56

€ 10.785 Each (In a Box of 30) (Exc. VAT)

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30

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30€ 10.785
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Murata Power Solutions
-
Pulse Transformer
12mH
-
-
-
-
-
-
-
2:1:1
-
Through Hole
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-
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-
-
-
-
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No
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-
-
-
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

€ 10.11

€ 10.11 Each (Exc. VAT)

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1

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1€ 10.11
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Murata Power Solutions
-
Pulse Transformer
12mH
-
-
-
-
-
-
-
2:1:1
-
Through Hole
-
-
-
-
-
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-
-
-
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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

€ 6.40

€ 6.40 Each (Exc. VAT)

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1€ 6.40
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Wurth Elektronik
-
Telecom Transformer
450μH
-
450mΩ
-
-
-
-0.25dB
-
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
125°C
7.6 mm
9.5mm
5.5mm
-
-
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
Add to parts list
Also available in industry standard packaging
RS Stock No.: 245-8579Brand: Wurth ElektronikManufacturers Part No.: 74942300

€ 9.78

€ 9.78 Each (Exc. VAT)

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1

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1€ 9.78
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Wurth Elektronik
-
Telecom Transformer
450μH
-
450mΩ
-
-
-
-0.25dB
-
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
125°C
15.1 mm
14.7mm
4.75mm
-
-
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
Add to parts list
RS Stock No.: 245-8573Brand: Wurth ElektronikManufacturers Part No.: 74941300

€ 3,098.68

€ 4.767 Each (On a Reel of 650) (Exc. VAT)

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650

Available in multiples of 650
650€ 4.767
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Wurth Elektronik
-
Telecom Transformer
450μH
-
450mΩ
-
-
-
-0.25dB
-
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
125°C
7.6 mm
9.5mm
5.5mm
-
-
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
Add to parts list
RS Stock No.: 245-8576Brand: Wurth ElektronikManufacturers Part No.: 74941302

€ 4,052.12

€ 4.767 Each (On a Reel of 850) (Exc. VAT)

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850

Available in multiples of 850
850€ 4.767
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Wurth Elektronik
-
Telecom Transformer
450μH
-
450mΩ
-
-
-
-0.25dB
-
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
125°C
9.45 mm
15.4mm
3.45mm
-
-
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
Add to parts list
RS Stock No.: 245-8581Brand: Wurth ElektronikManufacturers Part No.: 74942301

€ 4,400.22

€ 8.00 Each (On a Reel of 550) (Exc. VAT)

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550

Available in multiples of 550
550€ 8.00
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Wurth Elektronik
-
Telecom Transformer
450μH
-
450mΩ
-
-
-
-0.25dB
-
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
125°C
15.1 mm
14.9mm
3.45mm
-
-
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
Add to parts list
Also available in industry standard packaging
RS Stock No.: 245-8577Brand: Wurth ElektronikManufacturers Part No.: 74941302

€ 6.40

€ 6.40 Each (Exc. VAT)

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1

Available in multiples of 1
1€ 6.40
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Wurth Elektronik
-
Telecom Transformer
450μH
-
450mΩ
-
-
-
-0.25dB
-
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
125°C
9.45 mm
15.4mm
3.45mm
-
-
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
Add to parts list
Also available in industry standard packaging
RS Stock No.: 245-8582Brand: Wurth ElektronikManufacturers Part No.: 74942301

€ 9.52

€ 9.52 Each (Exc. VAT)

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1

Available in multiples of 1
1€ 9.52
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Wurth Elektronik
-
Telecom Transformer
450μH
-
450mΩ
-
-
-
-0.25dB
-
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
125°C
15.1 mm
14.9mm
3.45mm
-
-
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
Add to parts list
RS Stock No.: 245-8578Brand: Wurth ElektronikManufacturers Part No.: 74942300

€ 3,430.26

€ 7.623 Each (On a Reel of 450) (Exc. VAT)

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450

Available in multiples of 450
450€ 7.623
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Wurth Elektronik
-
Telecom Transformer
450μH
-
450mΩ
-
-
-
-0.25dB
-
1:1
-
Surface
-
-
-
-
-
-40°C
-
-
125°C
15.1 mm
14.7mm
4.75mm
-
-
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
Add to parts list
RS Stock No.: 245-8585Brand: Wurth ElektronikManufacturers Part No.: 749600010

€ 1,115.81

€ 27.895 Each (In a Tray of 40) (Exc. VAT)

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40

Available in multiples of 40
40€ 27.895
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Wurth Elektronik
-
Telecom Transformer
350μH
-
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.: 245-8586Brand: Wurth ElektronikManufacturers Part No.: 749600010

€ 27.34

€ 27.34 Each (Exc. VAT)

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1

Available in multiples of 1
1€ 27.34
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Wurth Elektronik
-
Telecom Transformer
350μH
-
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
-
-
OEP Through Hole Pulse Transformer 1:1 Turns Ratio, 1.9 h Prim. Inductance, 32Ω Prim. Resistance
OEP Through Hole Pulse Transformer 1:1 Turns Ratio, 1.9 h Prim. Inductance, 32Ω Prim. Resistance
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RS Stock No.: 533-0176Brand: OEPManufacturers Part No.: Z1640E

€ 15.69

€ 15.69 Each (Exc. VAT)

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1€ 15.69
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OEP
-
Pulse Transformer
1.9h
-
32Ω
-
-
42Ω
1.1dB
-
1:1
-
Through Hole
1.6mH
-
-
-
-
-
-
-
-
14.5 mm
18mm
18mm
-
4kHz
RoHS
-
200Hz
-
-
-
-
-

...