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 218-9880
製造零件編號SM-LP-5001
BrandBourns
HK$11.27
單位
3.8H 115Ω 115Ω 2dB 1:1 Surface Mount 6mH 9.6 x 7.36 x 14mm 14mm 9.6mm 7.36mm 4kHz 0.2kHz -
RS庫存編號 163-4297
製造零件編號750311307
HK$56.709
個 (在毎卷:250)
單位
100µH 0.29Ω 0.104Ω - 2:1 Surface Mount 3µH 15.24 x 13.34 x 11.43mm 11.43mm 15.24mm 13.34mm - - -
RS庫存編號 170-4973
製造零件編號IT313
BrandSchaffner
HK$124.777
個 (以毎盒:100)
單位
3mH - - - 1:1:1 Through Hole - 25.5 x 25.5 x 25mm 25mm 25.5mm 25.5mm - - -
RS庫存編號 106-8569
製造零件編號782485/35C
HK$12.62
毎管:50 個
單位
234µH 0.5Ω - - 1:2.2 Through Hole 0.168µH - - 9.14mm 10.46mm - - -
RS庫存編號 715-6891
製造零件編號78253/55VC
HK$28.85
單位
240µH 0.6Ω - - 1:1.31 Through Hole 8µH 9 x 9.52 x 6.35mm 6.35mm 9mm 9.52mm - - -
RS庫存編號 715-6898
製造零件編號782485/35C
HK$17.67
單位
234µH 0.5Ω - - 1:2.2 Through Hole 0.168µH 9.14 x 10.46 x 6.35mm 6.35mm 9.14mm 10.46mm - - -
RS庫存編號 756-7516
製造零件編號750311605
HK$102.41
單位
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庫存編號 106-8561
製造零件編號782485/55C
HK$12.674
毎管:50 個
單位
513µH 0.6Ω - - 1:1.5 Through Hole 0.192µH - - 9.14mm 10.46mm - - -
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 163-4313
製造零件編號750311605
HK$76.373
個 (在毎卷:125)
單位
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庫存編號 756-7412
製造零件編號750311305
HK$85.38
單位
50µH 0.175Ω 0.028Ω - 3:1 Surface Mount 2µH 15.24 x 13.34 x 11.43mm 11.43mm 15.24mm 13.34mm - - -
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 756-7544
製造零件編號750311594
HK$100.56
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 171-0808
製造零件編號ATB3225-75011CT
BrandTDK
HK$11,662.28
毎卷:1000 個
Reel(s)
- 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 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 - - -
RS庫存編號 715-6908
製造零件編號782485/55C
HK$15.14
單位
513µH 0.6Ω - - 1:1.5 Through Hole 0.192µH 9.14 x 10.46 x 6.35mm 6.35mm 9.14mm 10.46mm - - -
RS庫存編號 756-7500
製造零件編號750311599
HK$93.76
單位
8µH 0.03Ω 0.012Ω - 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 210-6273
製造零件編號OEP8000
BrandOEP
HK$48.50
單位
3.6H 111Ω 111Ω 4dB 1:1 Surface Mount 4100µH 9 x 7.3 x 14.2mm 14.2mm 9mm 7.3mm 4kHz 200Hz -
RS庫存編號 173-6407
製造零件編號IT248
BrandSchaffner
HK$53.26
單位
17mH - - - 2:1 Through Hole - 16.7 x 17.6 x 11.3mm 11.3mm 16.7mm 17.6mm - - -
RS庫存編號 883-9095
製造零件編號IT213
BrandSchaffner
HK$70.32
/個 (每包:100個)
單位
6.5mH 1.4Ω 1.4Ω - 1:1:1 Through Hole 20µH - - 19mm - 40 kHz, 500 (Data Transmission) kHz - Enclosed