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 715-6872
製造零件編號78253/35MC
HK$22.76
單位
0.38mH - - 1:2.27 Surface Mount 1µH 9 x 12.7 x 6.55mm 6.55mm 9mm 12.7mm - - -
RS庫存編號 162-0595
製造零件編號IT243
BrandSchaffner
HK$33.46
個 (以毎盒:200)
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 756-7468
製造零件編號750311911
HK$84.71
單位
6.78µH 0.02Ω 0.45 (12-11 and 10-9) Ω, 0.47 (14-13 and 8-7) Ω - 1:3 Surface Mount 200nH 25 x 22.2 x 16mm 16mm 25mm 22.2mm - - -
RS庫存編號 756-7395
製造零件編號750311691
HK$47.06
單位
60µH 0.315Ω 7.95Ω - 1:5 Surface Mount 1µH 8.26 x 6.6 x 5.59mm 5.59mm 8.26mm 6.6mm - - -
RS庫存編號 171-0807
製造零件編號ATB3225-75034CT
BrandTDK
HK$11.662
個 (在毎卷:1000)
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 715-6908
製造零件編號782485/55C
HK$18.51
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 210-6245
製造零件編號Z1612E
BrandOEP
HK$106.09
單位
- 68Ω 68Ω 1.5dB 1:1 Through Hole - 18 x 12.5 x 18mm 18mm 18mm 12.5mm - - -
RS庫存編號 756-7459
製造零件編號750311624
HK$77.70
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 170-4967
製造零件編號IT245
BrandSchaffner
HK$31.75
個 (以毎盒:200)
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 756-7500
製造零件編號750311599
HK$94.13
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 106-8569
製造零件編號782485/35C
HK$12.84
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 163-4301
製造零件編號750311457
HK$48.35
個 (在毎卷:200)
單位
50µH 0.115Ω 0.012Ω - 4:1 Surface Mount 1.2µH 17.75 x 13.46 x 12.7mm 12.7mm 17.75mm 13.46mm - - -
RS庫存編號 756-7412
製造零件編號750311305
HK$87.74
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 172-8671
製造零件編號SM-LP-5001
BrandBourns
HK$12.07
個 (以毎袋:53)
單位
3.8H - - 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 756-7529
製造零件編號750311590
HK$105.94
單位
8µH 0.015Ω 0.008Ω - 2:1 Surface Mount 400nH 32.31 x 27.03 x 13.69mm 13.69mm 32.31mm 27.03mm - - -
RS庫存編號 163-4307
製造零件編號750311593
HK$93.96
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 162-1335
製造零件編號750311590
HK$86.25
個 (在毎卷:100)
單位
8µH 0.015Ω 0.008Ω - 2:1 Surface Mount 400nH 32.31 x 27.03 x 13.69mm 13.69mm 32.31mm 27.03mm - - -
RS庫存編號 170-4969
製造零件編號IT255
BrandSchaffner
HK$40.112
個 (以毎盒:200)
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 106-8563
製造零件編號78253/35MC
HK$21.56
毎管:50 個
單位
0.38mH - - 1:2.27 Surface Mount 1µH - - 9mm 12.7mm - - -