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 106-8558
製造零件編號1002C
HK$30.515
毎管:30 個
單位
3mH 1.4Ω 1.7Ω - 1:1 PCB Mount 9µH - - 15.06mm 15.06mm - - -
RS庫存編號 831-9327
製造零件編號ATB3225-75032CT
BrandTDK
HK$15.23
單位
- 0.7Ω - 2dB 3:2 Surface Mount - 3.2 x 2.5 x 2.3mm 2.3mm 3.2mm 2.5mm 100MHz 5MHz -
RS庫存編號 167-4913
製造零件編號DXP18BN5014TL
BrandMurata
HK$2.564
個 (在毎卷:5000)
單位
- 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庫存編號 756-7373
製造零件編號749118205
HK$68.37
單位
0.9mH 4.3Ω 26mΩ - 19:1:1 Through Hole 175µH 18 x 16.5 x 18mm 18mm 18mm 16.5mm - - -
RS庫存編號 883-9121
製造零件編號IT364
BrandSchaffner
HK$511.607
/個 (每包:48個)
單位
1.5mH 0.16Ω 0.14Ω - 1:1 Through Hole 10µH - - 50mm 50mm 40 kHz, 500 (Data Transmission) kHz - Enclosed
RS庫存編號 533-0198
製造零件編號Z1656
BrandOEP
HK$53.00
單位
12H 63Ω 63Ω 0.8dB - Through Hole 35 mH, 35000 μH 18 x 12.7 x 18mm 18mm 18mm 12.7mm - - -
RS庫存編號 210-6302
製造零件編號PT10
BrandOEP
HK$45.57
單位
115µH 5.10Ω 2.6Ω - 2:1 Through Hole - 13 x 13 x 15mm 15mm 13mm 13mm 1MHz 3kHz -
RS庫存編號 173-6384
製造零件編號IT255
BrandSchaffner
HK$37.66
單位
22mH - - - 1:1 Through Hole - 16.7 x 17.6 x 11.3mm 11.3mm 16.7mm 17.6mm - - -
RS庫存編號 163-4315
製造零件編號750311608
HK$76.373
個 (在毎卷:125)
單位
12µH 0.03Ω 0.02Ω - 1.5:1 Surface Mount 1µH 29.08 x 23.11 x 11.43mm 11.43mm 29.08mm 23.11mm - - -
RS庫存編號 106-8572
製造零件編號78253/35C
HK$21.122
毎管:50 個
單位
0.38mH - - 1:2.27 Through Hole 1µH - - 9mm 9.52mm - - -
RS庫存編號 161-8042
製造零件編號DXW21BN7511TL
HK$2.397
個 (在毎卷:2000)
單位
- - - 1dB - Surface Mount - - - 2mm 1.2mm 870MHz 50MHz Enclosed
RS庫存編號 756-7550
製造零件編號750311771
HK$105.56
單位
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庫存編號 831-9324
製造零件編號ATB3225-75011CT
BrandTDK
HK$15.23
單位
- 0.7Ω - 0.8dB 1:1 Surface Mount - 3.2 x 2.5 x 2.3mm 2.3mm 3.2mm 2.5mm 200MHz 5MHz -
RS庫存編號 715-6927
製造零件編號76253/55ENC
HK$38.25
單位
2mH 0.9Ω - - 1:1.33 Through Hole 10µH 15 x 15 x 12.5mm 12.5mm 15mm 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 -