Part A
ADT1-6T+
Minicircuitos
- Lifecycle
- Active
- Stock
- 1972 PCS
- Package
- 6-SMD, Flat Leads
- Series
- Balun
Replacement verdict
Compatible functional replacement candidate
The ADT1-6T+ is a viable functional replacement candidate for the ADT1-1WT+ in RF transformer applications, with strong alignment across impedance ratio, package configuration, and frequency coverage, though insertion loss and power handling should be validated against the specific application requirements before final qualification.
Impedance Ratio
High match
Package Type
High match
Frequency Range
Validation required
Insertion Loss
Validation required
Parts at a glance
Part B
ADT1-1WT+
Minicircuitos
- Lifecycle
- Active
- Stock
- 3904 PCS
- Package
- 6-SMD, Flat Leads
- Series
- Balun
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADT1-1WT+ | ADT1-6T+ | Why it matters |
|---|---|---|---|
| Frequency Range (min) | 0.4 MHz | 0.07 MHz | The lower cutoff determines whether the transformer can handle low-frequency signals; the ADT1-6T+ extends operation to much lower frequencies. |
| Frequency Range (max) | 800 MHz | 300 MHz | The upper cutoff limits high-frequency usability; the ADT1-1WT+ covers a wider high-frequency span, affecting suitability for RF applications. |
| Impedance Ratio | 1:1 | 1:6 | The impedance transformation ratio determines matching between source and load; a 1:1 vs 1:6 ratio makes these parts non-interchangeable in most circuits. |
| Insertion Loss (typ) | 0.5 dB | 1.0 dB | Lower insertion loss means less signal attenuation through the transformer, directly impacting system signal integrity and power budget. |
| Package / Case | AT224-1 (6-lead SMD) | AT224-1 (6-lead SMD) | Package footprint and pinout must match for drop-in substitution on an existing PCB layout. |
| Operating Temperature Range | -20°C to +85°C | -20°C to +85°C | The temperature range defines the environments in which the component can reliably operate without performance degradation. |
| Power Rating (max) | 0.25 W | 0.25 W | Maximum power handling limits the signal levels the transformer can pass without saturation or damage. |
| DC Current (max) | 30 mA | 30 mA | DC current capability affects whether the transformer can be used in bias-tee or DC-coupled configurations without core saturation. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADT1-6T+ | ADT1-1WT+ |
|---|---|---|
| Part Status | Active | Active |
| Frequency Range | 30kHz ~ 125MHz | 400kHz ~ 800MHz |
| Impedance - Unbalanced / Balanced | 50 / 50Ohm | 75 / 75Ohm |
| Phase Difference | 1° | 4° |
| Insertion Loss(Max) | 3dB | 3dB |
| Return Loss(Min) | 7.66dB | 9.75dB |
Frequently asked questions
What are the ADT1-1WT+ and ADT1-6T+ and what is their primary function?
Both are Mini-Circuits surface-mount RF transformers. The ADT1-1WT+ is a 1:1 transmission-line transformer (balun) covering roughly 0.5 to 400 MHz, while the ADT1-6T+ is a 1:6 impedance-ratio transformer covering roughly 0.5 to 300 MHz. They are used for impedance matching, balanced-to-unbalanced conversion, and isolation in RF signal chains.
What is the key difference between the ADT1-1WT+ and ADT1-6T+?
The primary difference is the impedance transformation ratio. The ADT1-1WT+ provides a 1:1 ratio (50Ω to 50Ω), whereas the ADT1-6T+ provides a 1:6 impedance ratio (50Ω to 300Ω). This makes the ADT1-1WT+ suited to unity-ratio balun applications and the ADT1-6T+ suited to impedance matching where a 6:1 step-up is required.
Are the ADT1-1WT+ and ADT1-6T+ pin-to-pin compatible?
Both are offered in Mini-Circuits' surface-mount package style, but pin-to-pin interchangeability must be confirmed against the specific datasheet pin configuration and PCB land pattern for each model. Because their impedance ratios differ, they are not electrically interchangeable even if the package footprint is similar.
Can the ADT1-1WT+ be substituted with the ADT1-6T+ in an existing design?
No, not as a direct drop-in. The ADT1-6T+ presents a 1:6 impedance ratio versus the 1:1 ratio of the ADT1-1WT+, so substituting one for the other changes the impedance transformation and matching conditions. Any substitution requires re-validation of return loss, insertion loss, and bandwidth against the manufacturer datasheets.
What frequency ranges do these transformers support?
Per Mini-Circuits datasheets, the ADT1-1WT+ operates over approximately 0.5 to 400 MHz, and the ADT1-6T+ operates over approximately 0.5 to 300 MHz. Designers should verify the exact specified bandwidth and performance limits on the current datasheet for the target application.
Which applications typically use the ADT1-1WT+ versus the ADT1-6T+?
The ADT1-1WT+ is commonly used where a 1:1 balun is needed, such as converting single-ended to differential signals or providing isolation without impedance change. The ADT1-6T+ is used where a 6:1 impedance step-up is required, such as matching a low-impedance source to a higher-impedance load. Final selection should be based on the verified datasheet parameters for the specific circuit.
Do both parts share the same manufacturer and package family?
Yes. Both the ADT1-1WT+ and ADT1-6T+ are manufactured by Mini-Circuits and belong to its surface-mount RF transformer family. Exact package dimensions, pin counts, and land patterns should be confirmed from the respective Mini-Circuits datasheets before layout or replacement decisions.