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. 106-8562
Mfr. Part No.78250MC
MYR10.31
Each (In a Tube of 50)
units
2mH - - Surface Mount 3µH - - 9mm 12.7mm - - -
RS Stock No. 163-4310
Mfr. Part No.750311597
MYR36.65
Each (On a Reel of 125)
units
6µH 0.02Ω 0.004Ω - 3:1 Surface Mount 300nH 29.08 x 23.11 x 11.43mm 11.43mm 29.08mm 23.11mm - - -
RS Stock No. 170-9324
Mfr. Part No.78602/9JC
MYR8.136
Each (On a Reel of 50)
units
10000µH 1.8Ω - - 1:1:1 Surface Mount 0.71µH - - 9.52mm 9mm - - Enclosed
RS Stock No. 629-9183
Mfr. Part No.76601/2C
MYR8.38
Each
units
- - - - 1:1 Through Hole - 12.7 x 8.89 x 6.35mm 6.35mm 12.7mm 8.89mm - - -
RS Stock No. 800-4423
Mfr. Part No.78604/1C
MYR6.292
Each (In a Bag of 5)
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. 756-7516
Mfr. Part No.750311605
MYR55.81
Each
units
15µH 0.04Ω 0.005Ω - 1:3.5 Surface Mount 550nH 29.08 x 23.11 x 11.43mm 11.43mm 29.08mm 23.11mm - - -
RS Stock No. 715-6891
Mfr. Part No.78253/55VC
MYR14.03
Each
units
240µH 0.6Ω - - 1:1.31 Through Hole 8µH 9 x 9.52 x 6.35mm 6.35mm 9mm 9.52mm - - -
RS Stock No. 756-7430
Mfr. Part No.750311567
MYR36.78
Each
units
7µH 0.07Ω 0.023Ω - 2:1 Surface Mount 800nH 15.24 x 13.34 x 11.43mm 11.43mm 15.24mm 13.34mm - - -
RS Stock No. 106-8561
Mfr. Part No.782485/55C
MYR6.14
Each (In a Tube of 50)
units
513µH 0.6Ω - - 1:1.5 Through Hole 0.192µH - - 9.14mm 10.46mm - - -
RS Stock No. 756-7538
Mfr. Part No.750311591
MYR54.03
Each
units
8µH 0.015Ω 0.012Ω - 1.5:1 Surface Mount 400nH 32.31 x 27.03 x 13.69mm 13.69mm 32.31mm 27.03mm - - -
RS Stock No. 167-4838
Mfr. Part No.DXW21BN7511SL
BrandMurata
MYR1.42
Each (On a Reel of 2000)
units
- 75Ω 75Ω 1.4dB 1:1 Surface Mount - 2 x 1.2 x 1.2mm 1.2mm 2mm 1.2mm - - -
RS Stock No. 839-0913
Mfr. Part No.DXW21BN7511SL
BrandMurata
MYR2.93
Each (In a Bag of 5)
units
- 75Ω 75Ω 1.4dB 1:1 Surface Mount - 2 x 1.2 x 1.2mm 1.2mm 2mm 1.2mm - - -
RS Stock No. 831-9315
Mfr. Part No.ATB322524-0110
BrandTDK
MYR8.20
Each
units
7µH 0.5Ω 60Ω - 1:10.2 Surface Mount 0.4µH 3.2 x 2.5 x 2.4mm 2.4mm 3.2mm 2.5mm - - -
RS Stock No. 905-5018
Mfr. Part No.78602/9JC
MYR6.42
Each
units
10000µH 1.8Ω - - 1:1:1 Surface Mount 0.71µH - - 9.52mm 9mm - - Enclosed
RS Stock No. 109-4149
Mfr. Part No.ATB322524-0110
BrandTDK
MYR4.875
Each (On a Reel of 1000)
units
7µH 0.5Ω 60Ω - 0.0008125 Surface Mount 0.4µH - - 3.2mm 2.5mm - - -
RS Stock No. 163-4312
Mfr. Part No.750311604
MYR36.65
Each (On a Reel of 125)
units
8µH 0.03Ω 0.035Ω - 1:1 Surface Mount 400nH 29.08 x 23.11 x 11.43mm 11.43mm 29.08mm 23.11mm - - -
RS Stock No. 196-454
Mfr. Part No.PT8
BrandOEP
MYR20.77
Each
units
- - - - 2:1+1 Through Hole - 13 x 13 x 15mm 15mm 13mm 13mm 1MHz 3kHz -
RS Stock No. 106-8563
Mfr. Part No.78253/35MC
MYR10.31
Each (In a Tube of 50)
units
0.38mH - - 1:2.27 Surface Mount 1µH - - 9mm 12.7mm - - -
RS Stock No. 163-4305
Mfr. Part No.750311591
MYR44.87
Each (On a Reel of 100)
units
8µH 0.015Ω 0.012Ω - 1.5:1 Surface Mount 400nH 32.31 x 27.03 x 13.69mm 13.69mm 32.31mm 27.03mm - - -
RS Stock No. 163-4299
Mfr. Part No.750311385
MYR29.532
Each (On a Reel of 125)
units
15µH 0.02Ω 0.012Ω - 1.25:1 Surface Mount 200nH 29.08 x 23.11 x 11.43mm 11.43mm 29.08mm 23.11mm - - -
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