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 218-9852
製造零件編號IT243
BrandSchaffner
HK$47.79
單位
2.5mH - - - 1:1:1 Through Hole - 16.7 x 17.6 x 11.3mm 11.3mm 16.7mm 17.6mm - - -
RS庫存編號 163-4299
製造零件編號750311385
HK$61.099
個 (在毎卷:125)
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 178-9704
製造零件編號IT244
BrandSchaffner
HK$52.25
單位
15mH - - - 3:1:1 Through Hole - 16.7 x 17.6 x 11.3mm 11.3mm 16.7mm 17.6mm - - -
RS庫存編號 173-6429
製造零件編號IT258
BrandSchaffner
HK$63.56
單位
2.5mH - - - 1:1 Through Hole - 16.7 x 17.6 x 11.3mm 11.3mm 16.7mm 17.6mm - - -
RS庫存編號 715-6876
製造零件編號78253/55C
HK$22.38
單位
0.83mH 1.5Ω - - 1:1.31 Through Hole 1µH 9 x 9.52 x 6.35mm 6.35mm 9mm 9.52mm - - -
RS庫存編號 106-8564
製造零件編號78253/35MVC
HK$26.795
毎管:50 個
單位
142µH 0.5Ω - - 1:2.14 Surface Mount 5µH - - 9mm 12.7mm - - -
RS庫存編號 905-5018
製造零件編號78602/9JC
HK$13.21
單位
10000µH 1.8Ω - - 1:1:1 Surface Mount 0.71µH - - 9.52mm 9mm - - Enclosed
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 210-6330
製造零件編號PT10E
BrandOEP
HK$44.31
單位
- 5.1Ω 2.6Ω - 2:1 Through Hole 115µH 15 x 15 x 16mm 16mm 15mm 15mm 1MHz 3kHz -
RS庫存編號 715-6879
製造零件編號78253/35C
HK$22.67
單位
0.38mH - - 1:2.27 Through Hole 1µH 9 x 9.52 x 6.35mm 6.35mm 9mm 9.52mm - - -
RS庫存編號 163-4320
製造零件編號750311771
HK$93.557
個 (在毎卷:100)
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 167-4913
製造零件編號DXP18BN5014TL
BrandMurata
HK$12,817.50
毎卷:5000 個
Reel(s)
- 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 756-7550
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 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 163-4303
製造零件編號750311564
HK$56.709
個 (在毎卷:200)
單位
9.07µH 0.036Ω 0.007Ω - 3:1 Surface Mount 250nH 17.75 x 13.46 x 12.7mm 12.7mm 17.75mm 13.46mm - - -
RS庫存編號 756-7459
製造零件編號750311624
HK$77.40
單位
9µH 0.034Ω 0.021Ω - 1.5:1 Surface Mount 250nH 17.75 x 13.46 x 12.7mm 12.7mm 17.75mm 13.46mm - - -
RS庫存編號 883-9092
製造零件編號IT155
BrandSchaffner
HK$40.65
/個 (每包:100個)
單位
5mH 1.2Ω 1.2Ω - 1:1 Through Hole 85µH - - 27mm 22.5mm 40 kHz, 500 (Data Transmission) kHz - Enclosed
RS庫存編號 170-4971
製造零件編號IT248
BrandSchaffner
HK$34.72
個 (以毎盒:200)
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 839-0913
製造零件編號DXW21BN7511SL
BrandMurata
HK$5.376
個 (以毎袋:5)
單位
- 75Ω 75Ω 1.4dB 1:1 Surface Mount - 2 x 1.2 x 1.2mm 1.2mm 2mm 1.2mm - - -
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 - - -