Mini-Circuits 1:4 CORE & WIRE Transformer, 40 - 1250 MHz, 75Ω TC4-122-75X+

Description
The TC4-122-75X+ is a 75Ω surface-mount balanced to balanced transformer covering the 40 to 1250 MHz band, supporting bandwidth requirements for DOCSIS® 3.1 compliant systems and equipment. The transformer provides a 4:1 secondary/primary impedance ratio with 1.4 dB insertion loss, 1.1 dB amplitude unbalance, and 7° phase unbalance. Featuring core and wire construction on a 5-lead plastic base with tin over nickel termination finish, the unit measures 0.15x0.15x0.16”, accommodating dense circuit board layouts. It also incorporates Mini-Circuits’ Top Hat® feature for faster, more accurate pick-and-place assembly.
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Description
The TC4-122-75X+ is a 75Ω surface-mount balanced to balanced transformer covering the 40 to 1250 MHz band, supporting bandwidth requirements for DOCSIS® 3.1 compliant systems and equipment. The transformer provides a 4:1 secondary/primary impedance ratio with 1.4 dB insertion loss, 1.1 dB amplitude unbalance, and 7° phase unbalance. Featuring core and wire construction on a 5-lead plastic base with tin over nickel termination finish, the unit measures 0.15x0.15x0.16”, accommodating dense circuit board layouts. It also incorporates Mini-Circuits’ Top Hat® feature for faster, more accurate pick-and-place assembly.
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Datasheet
Datasheet Summary
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The TC4-122-75X+ is a 75Ω surface-mount balanced-to-balanced RF transformer operating from 40 to 1250 MHz with a 4:1 impedance ratio. It features a 5-lead plastic base measuring 0.15×0.15×0.16 inches, tin-over-nickel terminations, and a Top Hat® feature for improved pick-and-place assembly. The transformer has a maximum insertion loss of 1.4 dB, amplitude unbalance of 1.1 dB, and phase unbalance of 7° over the band, supports DC bias up to 30 mA through the secondary center tap, and operates from -40°C to +85°C with an RF power rating of 0.25 W.

Datasheet Summary
Powered by GS/AI

The TC4-122-75X+ is a 75Ω surface-mount balanced-to-balanced RF transformer operating from 40 to 1250 MHz with a 4:1 impedance ratio. It features a 5-lead plastic base measuring 0.15×0.15×0.16 inches, tin-over-nickel terminations, and a Top Hat® feature for improved pick-and-place assembly. The transformer has a maximum insertion loss of 1.4 dB, amplitude unbalance of 1.1 dB, and phase unbalance of 7° over the band, supports DC bias up to 30 mA through the secondary center tap, and operates from -40°C to +85°C with an RF power rating of 0.25 W.

Suppliers

Company
Product
Description
Supplier Links
1:4 CORE & WIRE Transformer, 40 - 1250 MHz, 75Ω - TC4-122-75X+ - Mini-Circuits
Brooklyn, NY, United States
1:4 CORE & WIRE Transformer, 40 - 1250 MHz, 75Ω
TC4-122-75X+
1:4 CORE & WIRE Transformer, 40 - 1250 MHz, 75Ω TC4-122-75X+
The TC4-122-75X+ is a 75Ω surface-mount balanced to balanced transformer covering the 40 to 1250 MHz band, supporting bandwidth requirements for DOCSIS® 3.1 compliant systems and equipment. The transformer provides a 4:1 secondary/primary impedance ratio with 1.4 dB insertion loss, 1.1 dB amplitude unbalance, and 7° phase unbalance. Featuring core and wire construction on a 5-lead plastic base with tin over nickel termination finish, the unit measures 0.15x0.15x0.16”, accommodating dense circuit board layouts. It also incorporates Mini-Circuits’ Top Hat® feature for faster, more accurate pick-and-place assembly.

The TC4-122-75X+ is a 75Ω surface-mount balanced to balanced transformer covering the 40 to 1250 MHz band, supporting bandwidth requirements for DOCSIS® 3.1 compliant systems and equipment. The transformer provides a 4:1 secondary/primary impedance ratio with 1.4 dB insertion loss, 1.1 dB amplitude unbalance, and 7° phase unbalance. Featuring core and wire construction on a 5-lead plastic base with tin over nickel termination finish, the unit measures 0.15x0.15x0.16”, accommodating dense circuit board layouts. It also incorporates Mini-Circuits’ Top Hat® feature for faster, more accurate pick-and-place assembly.

Supplier's Site Datasheet
Balun - 3157-TC4-122-75X+TR-ND - DigiKey
Thief River Falls, MN, United States
RF Balun 40MHz ~ 1.25GHz 1:4 5-SMD Module

RF Balun 40MHz ~ 1.25GHz 1:4 5-SMD Module

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Technical Specifications

  Mini-Circuits DigiKey
Product Category Transformers Transformers
Product Number TC4-122-75X+ 3157-TC4-122-75X+TR-ND
Product Name 1:4 CORE & WIRE Transformer, 40 - 1250 MHz, 75Ω Balun
Category Signal Signal
Other Transformer Types / Applications RF Balun
Winding Turns Step-Up Transformer
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