Telecom 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 components in any telecommunications system. Other types of equipment, such as resistors and capacitors, are sometimes used to achieve the same goals that a telecom transformer achieves. However, telecom transformers perform these tasks with a greater degree of efficiency and ease of use, and thus are more commonly used than their alternatives.

Types of telecom transformers

Telecom transformers are designed with different types of inductance, mounting styles and other specifications that dictate whether those devices will be appropriate for a given application or use in a given device.

They can be mounted in different ways. Some designs are surface mounted, while others are mounted through the holes in a breadboard.


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Description Price Primary Inductance Primary DC Resistance Secondary DC Resistance Insertion Loss Turns Ratio Mounting Type Leakage Inductance Dimensions Depth Length Width Maximum Operating Frequency Minimum Operating Frequency Construction
RS Stock No. 210-6302
Mfr. Part No.PT10
BrandOEP
€3.93
Each
units
115µH 5.10Ω 2.6Ω - 2:1 Through Hole - 13 x 13 x 15mm 15mm 13mm 13mm 1MHz 3kHz -
RS Stock No. 839-0904
Mfr. Part No.DXP18BN5014TL
BrandMurata
€0.636
Each (In a Bag of 5)
units
- 50Ω 200Ω 1.5dB 1:2 Surface Mount - 1.6 x 0.8 x 0.45mm 0.45mm 1.6mm 0.8mm 870MHz 50MHz -
RS Stock No. 167-4913
Mfr. Part No.DXP18BN5014TL
BrandMurata
€0.281
Each (On a Reel of 5000)
units
- 50Ω 200Ω 1.5dB 1:2 Surface Mount - 1.6 x 0.8 x 0.45mm 0.45mm 1.6mm 0.8mm 870MHz 50MHz -
RS Stock No. 161-8042
Mfr. Part No.DXW21BN7511TL
€0.171
Each (On a Reel of 2000)
units
- - - 1dB - Surface Mount - - - 2mm 1.2mm 870MHz 50MHz Enclosed
RS Stock No. 170-4980
Mfr. Part No.IT314
BrandSchaffner
€8.98
Each (In a Box of 100)
units
35mH - - - 3:1:1 Through Hole - 25.5 x 25.5 x 25mm 25mm 25.5mm 25.5mm - - -
RS Stock No. 831-9327
Mfr. Part No.ATB3225-75032CT
BrandTDK
€1.65
Each
units
- 0.7Ω - 2dB 3:2 Surface Mount - 3.2 x 2.5 x 2.3mm 2.3mm 3.2mm 2.5mm 100MHz 5MHz -
RS Stock No. 178-9748
Mfr. Part No.IT314
BrandSchaffner
€13.41
Each
units
35mH - - - 3:1:1 Through Hole - 25.5 x 25.5 x 25mm 25mm 25.5mm 25.5mm - - -
RS Stock No. 171-0809
Mfr. Part No.ATB3225-75032CT
BrandTDK
€0.931
Each (On a Reel of 1000)
units
- 0.7Ω - 2dB 3:2 Surface Mount - 3.2 x 2.5 x 2.3mm 2.3mm 3.2mm 2.5mm 100MHz 5MHz -
RS Stock No. 715-6905
Mfr. Part No.782482/53VC
€1.76
Each
units
260µH 600mΩ - - 1.14:1 Through Hole 8µH 9.77 x 9.14 x 6.35mm 9.77mm 6.35mm 9.14mm - - -
RS Stock No. 106-2888
Mfr. Part No.DXW21BN7511TL
€0.192
Each (In a Pack of 10)
units
- - - 1dB - Surface Mount - - - 2mm 1.2mm 870MHz 50MHz Enclosed
RS Stock No. 210-6330
Mfr. Part No.PT10E
BrandOEP
€6.37
Each
units
- 5.1Ω 2.6Ω - 2:1 Through Hole 115µH 15 x 15 x 16mm 16mm 15mm 15mm 1MHz 3kHz -
RS Stock No. 163-4320
Mfr. Part No.750311771
€8.874
Each (On a Reel of 100)
units
500µH 0.45Ω 0.05Ω - 6:1 Surface Mount 10µH 32.31 x 27.03 x 13.69mm 13.69mm 32.31mm 27.03mm - - -
RS Stock No. 106-8560
Mfr. Part No.782482/53VC
€1.268
Each (In a Tube of 50)
units
260µH 600mΩ - - 1.14:1 Through Hole 8µH - - 6.35mm 9.14mm - - -
RS Stock No. 756-7550
Mfr. Part No.750311771
€15.15
Each
units
500µH 0.45Ω 0.05Ω - 6:1 Surface Mount 10µH 32.31 x 27.03 x 13.69mm 13.69mm 32.31mm 27.03mm - - -
RS Stock No. 210-6223
Mfr. Part No.OEP1200
BrandOEP
€6.70
Each
units
4.15H 65Ω 65Ω 1.3dB 1:1 Through Hole 20mH 18 x 18 x 12.5mm 12.5mm 18mm 18mm 4kHz 300Hz -
RS Stock No. 106-8564
Mfr. Part No.78253/35MVC
€2.769
Each (In a Tube of 50)
units
142µH 0.5Ω - - 1:2.14 Surface Mount 5µH - - 9mm 12.7mm - - -
RS Stock No. 167-5963
Mfr. Part No.78604/1C
€1.25
Each (In a Tube of 50)
units
2000µH 0.6Ω - - 2:1 Through Hole 0.99µH 9.52 x 9 x 6.35mm 6.35mm 9.52mm 9mm - - -
RS Stock No. 171-0807
Mfr. Part No.ATB3225-75034CT
BrandTDK
€0.866
Each (On a Reel of 1000)
units
- 0.7Ω - 2dB 3:4 Surface Mount - 3.2 x 2.5 x 2.3mm 2.3mm 3.2mm 2.5mm 100MHz 1MHz -
RS Stock No. 629-9177
Mfr. Part No.76601/1C
€1.72
Each
units
- - - - 1:1 Through Hole - 12.7 x 8.89 x 6.35mm 6.35mm 12.7mm 8.89mm - - -
RS Stock No. 756-7529
Mfr. Part No.750311590
€11.29
Each
units
8µH 0.015Ω 0.008Ω - 2:1 Surface Mount 400nH 32.31 x 27.03 x 13.69mm 13.69mm 32.31mm 27.03mm - - -
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