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.: B78308X0001HSN Code: 85043129

SR 307.05

SR 307.05 Each (ex VAT)

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1

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1SR 307.05
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Epcos
4.1μH
-
Telecom Transformer
-
75mΩ
-
-
-
-
1 : 0.22 :0.78
-
-
Surface
-
-
-
-
-40°C
-
-
150°C
-
500kHz
15.8mm
E13 EMHV
IEC 60664-1, 61558-2-16
12.90 mm
-
11.4mm
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.: B78416X0001HSN Code: 85043129

SR 253.00

SR 253.00 Each (ex VAT)

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1

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1SR 253.00
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Epcos
3mH
-
Telecom Transformer
-
23Ω
-
-
-
-
1 : 1 :8.42
-
-
Surface
-
-
-
-
-40°C
-
-
125°C
-
300kHz
7.6mm
EP6
RoHS, AEC-Q200
8.8 mm
-
7.10mm
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.: B78307X0001HSN Code: 85043129

SR 319.70

SR 319.70 Each (ex VAT)

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1

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1SR 319.70
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Epcos
100μH
-
Telecom Transformer
-
-
-
-
-
-
1:1.08
-
-
Surface
-
-
-
-
-40°C
-
-
150°C
-
500kHz
13.15mm
E10 EM
RoHS
11.70 mm
-
11.35mm
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.: 78601/9JCHSN Code: 85043129

SR 517.50

SR 10.35 Each (In a Tube of 50) (ex VAT)

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50

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50SR 10.35
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Murata Power Solutions
10mH
-
Pulse Transformer
-
-
-
-
-
-
1:1
-
-
Surface
-
-
-
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-
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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.: 78601/9JCHSN Code: 85043129

SR 21.85

SR 21.85 Each (ex VAT)

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1SR 21.85
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Murata Power Solutions
10mH
-
Pulse Transformer
-
-
-
-
-
-
1:1
-
-
Surface
-
-
-
-
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-
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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.: 279-8049Brand: Murata Power SolutionsManufacturers Part No.: 78615/9JCHSN Code: 85043129

SR 460.00

SR 9.20 Each (In a Tube of 50) (ex VAT)

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50

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50SR 9.20
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Murata Power Solutions
10mH
-
Pulse Transformer
-
-
-
-
-
-
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.: 279-8050Brand: Murata Power SolutionsManufacturers Part No.: 78615/9JCHSN Code: 85043129

SR 13.80

SR 13.80 Each (ex VAT)

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1

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1SR 13.80
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Murata Power Solutions
10mH
-
Pulse Transformer
-
-
-
-
-
-
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.: 1003CHSN Code: 85043129

SR 931.50

SR 31.05 Each (In a Box of 30) (ex VAT)

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30

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30SR 31.05
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Murata Power Solutions
12mH
-
Pulse Transformer
-
-
-
-
-
-
2:1:1
-
-
Through Hole
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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.: 1003CHSN Code: 85043129

SR 35.65

SR 35.65 Each (ex VAT)

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1

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1SR 35.65
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Murata Power Solutions
12mH
-
Pulse Transformer
-
-
-
-
-
-
2:1:1
-
-
Through Hole
-
-
-
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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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RS Stock No.: 245-8573Brand: Wurth ElektronikManufacturers Part No.: 74941300HSN Code: 85043180

SR 8,970.00

SR 13.80 Each (On a Reel of 650) (ex VAT)

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650

Available in multiples of 650
650SR 13.80
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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
-
Surface
-
-
-
-
-40°C
-
-
125°C
-
-
9.5mm
WE‑BMS
RoHS
7.6 mm
-
5.5mm
-
-
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.: 74941302HSN Code: 85043180

SR 23.00

SR 23.00 Each (ex VAT)

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1

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1SR 23.00
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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
-
Surface
-
-
-
-
-40°C
-
-
125°C
-
-
15.4mm
WE‑BMS
RoHS
9.45 mm
-
3.45mm
-
-
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.: 74942301HSN Code: 85043180

SR 33.35

SR 33.35 Each (ex VAT)

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1

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1SR 33.35
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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
-
Surface
-
-
-
-
-40°C
-
-
125°C
-
-
14.9mm
WE‑BMS
RoHS
15.1 mm
-
3.45mm
-
-
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.: 74942300HSN Code: 85043180

SR 9,832.50

SR 21.85 Each (On a Reel of 450) (ex VAT)

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450

Available in multiples of 450
450SR 21.85
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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
-
Surface
-
-
-
-
-40°C
-
-
125°C
-
-
14.7mm
WE‑BMS
RoHS
15.1 mm
-
4.75mm
-
-
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.: 74942300HSN Code: 85043180

SR 34.50

SR 34.50 Each (ex VAT)

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1

Available in multiples of 1
1SR 34.50
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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
-
Surface
-
-
-
-
-40°C
-
-
125°C
-
-
14.7mm
WE‑BMS
RoHS
15.1 mm
-
4.75mm
-
-
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.: 245-8575Brand: Wurth ElektronikManufacturers Part No.: 74941300HSN Code: 85043180

SR 23.00

SR 23.00 Each (ex VAT)

Check stock

1

Available in multiples of 1
1SR 23.00
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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
-
Surface
-
-
-
-
-40°C
-
-
125°C
-
-
9.5mm
WE‑BMS
RoHS
7.6 mm
-
5.5mm
-
-
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.: 74942301HSN Code: 85043180

SR 13,282.50

SR 24.15 Each (On a Reel of 550) (ex VAT)

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550

Available in multiples of 550
550SR 24.15
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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
-
Surface
-
-
-
-
-40°C
-
-
125°C
-
-
14.9mm
WE‑BMS
RoHS
15.1 mm
-
3.45mm
-
-
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.: 74941302HSN Code: 85043180

SR 11,730.00

SR 13.80 Each (On a Reel of 850) (ex VAT)

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850

Available in multiples of 850
850SR 13.80
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Wurth Elektronik
450μH
-
Telecom Transformer
-
450mΩ
-
-
-
-0.25dB
1:1
-
-
Surface
-
-
-
-
-40°C
-
-
125°C
-
-
15.4mm
WE‑BMS
RoHS
9.45 mm
-
3.45mm
-
-
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.: 749600010HSN Code: 85043180

SR 95.45

SR 95.45 Each (ex VAT)

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1

Available in multiples of 1
1SR 95.45
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Wurth Elektronik
350μH
-
Telecom Transformer
-
450mΩ
-
-
-
-1.3dB
1:1
-
-
-
-
-
-
-
-40°C
-
-
125°C
-
-
-
WE‑BMS
RoHS Approval (2011/65/EU&2015/863), REACh Approval Conform or declared ((EC)1907/2006)
-
-
-
-
-
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.: 749600010HSN Code: 85043180

SR 3,220.00

SR 80.50 Each (In a Tray of 40) (ex VAT)

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40

Available in multiples of 40
40SR 80.50
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Wurth Elektronik
350μH
-
Telecom Transformer
-
450mΩ
-
-
-
-1.3dB
1:1
-
-
-
-
-
-
-
-40°C
-
-
125°C
-
-
-
WE‑BMS
RoHS Approval (2011/65/EU&2015/863), REACh Approval Conform or declared ((EC)1907/2006)
-
-
-
-
-
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.: Z1640EHSN Code: 85043180

SR 56.35

SR 56.35 Each (ex VAT)

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1SR 56.35
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OEP
1.9h
-
Pulse Transformer
-
32Ω
-
-
42Ω
1.1dB
1:1
-
-
Through Hole
-
1.6mH
-
-
-
-
-
-
-
4kHz
18mm
-
RoHS
14.5 mm
-
18mm
200Hz
-
-
-
-
-

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