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庫存編號 756-7484
製造零件編號750311385
HK$70.21
單位
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 - - -
RS庫存編號 715-6920
製造零件編號76250ENC
HK$37.22
單位
2mH - - 1:1 Through Hole 40µH 15 x 15 x 12.5mm 12.5mm 15mm 15mm - - -
RS庫存編號 163-4308
製造零件編號750311594
HK$93.557
個 (在毎卷:100)
單位
15µH 0.035Ω 0.015Ω - 2.33:1 Surface Mount 550nH 32.31 x 27.03 x 13.69mm 13.69mm 32.31mm 27.03mm - - -
RS庫存編號 106-8565
製造零件編號78253/55MC
HK$20.881
毎管:50 個
單位
0.83mH 1.5Ω - - 1:1.31 Surface Mount 1µH - - 9mm 12.7mm - - -
RS庫存編號 800-4344
製造零件編號1002C
HK$39.95
單位
3mH 1.4Ω 1.7Ω - 1:1:1 PCB Mount 9µH 15.06 x 15.06 x 15.75mm 15.75mm 15.06mm 15.06mm - - -
RS庫存編號 756-7361
製造零件編號7491181112
HK$56.30
單位
2.8mH 290mΩ - 8.1:1 Through Hole 175µH 21.5 x 15 x 12mm 12mm 21.5mm 15mm - - -
RS庫存編號 831-9321
製造零件編號ATB3225-75034CT
BrandTDK
HK$15.62
單位
- 0.7Ω - 2dB 3:4 Surface Mount - 3.2 x 2.5 x 2.3mm 2.3mm 3.2mm 2.5mm 100MHz 1MHz -
RS庫存編號 173-6340
製造零件編號IT245
BrandSchaffner
HK$42.95
單位
8mH - - - 1:1 Through Hole - 16.7 x 17.6 x 11.3mm 11.3mm 16.7mm 17.6mm - - -
RS庫存編號 756-7383
製造零件編號7491182112
HK$68.37
單位
0.9mH 94mΩ - 9.5:1:1 Through Hole 112µH 24.5 x 20.2 x 16.5mm 16.5mm 24.5mm 20.2mm - - -
RS庫存編號 163-4307
製造零件編號750311593
HK$93.557
個 (在毎卷:100)
單位
15µH 0.032Ω 0.008Ω - 3.5:1 Surface Mount 400nH 32.31 x 27.03 x 13.69mm 13.69mm 32.31mm 27.03mm - - -