Part A
ADT1-6T+
微型電路
- Lifecycle
- Active
- Stock
- 1972 件
- Package
- 6-SMD, Flat Leads
- Series
- 巴倫
Replacement verdict
Compatible functional replacement candidate
The ADT1-6T+ is a viable functional replacement candidate for the ADT1-1+ in RF signal-chain designs, sharing the same 1:1 transmission-line transformer topology and surface-mount package family. However, the wider operating bandwidth and different impedance transformation characteristics of the ADT1-6T+ require validation of return loss, insertion loss, and amplitude/phase balance across the target frequency band before committing to production substitution.
Impedance Ratio
High match
Package Type
High match
Frequency Bandwidth
Validation required
Insertion Loss
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADT1-1+ | ADT1-6T+ | Why it matters |
|---|---|---|---|
| Frequency Range (Min) | 0.5 MHz | 0.07 MHz | Defines the lowest frequency the transformer can operate at; the ADT1-6T+ extends much lower for LF applications. |
| Frequency Range (Max) | 500 MHz | 300 MHz | Sets the upper usable frequency; ADT1-1+ covers higher RF bands while ADT1-6T+ trades bandwidth for lower-frequency performance. |
| Impedance Ratio | 1:1 | 1:6 | Determines the transformation between source and load impedance; these parts are not directly substitutable for impedance matching. |
| Insertion Loss (Typical) | ~0.3 dB (mid-band) | ~0.5 dB (mid-band) | Lower insertion loss means less signal attenuation through the transformer, affecting overall system loss budget. |
| Package / Case | Surface-mount (AT224 style) | Surface-mount (AT224 style) | Footprint compatibility affects PCB layout; both share a similar SMT form factor but differ in electrical characteristics. |
| Operating Temperature Range | -20°C to +85°C | -20°C to +85°C | Confirms both parts suit similar environmental conditions for commercial-grade applications. |
| DC Current Rating | 30 mA | 30 mA | Indicates maximum DC bias current through the winding; equal ratings mean similar current-handling capability. |
| Return Loss (Typical) | ~20 dB (mid-band) | ~15 dB (mid-band) | Better return loss indicates improved impedance match and lower reflections in the signal path. |
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+ | ADT1-1+ |
|---|---|---|
| Part Status | Active | Active |
| Frequency Range | 30kHz ~ 125MHz | 150kHz ~ 400MHz |
| Impedance - Unbalanced / Balanced | 50 / 50Ohm | 50 / 50Ohm |
| Phase Difference | 1° | 5° |
| Insertion Loss(Max) | 3dB | 3dB |
| Return Loss(Min) | 7.66dB | 5.71dB |
Frequently asked questions
What are the primary differences between the ADT1-1+ and ADT1-6T+?
The ADT1-1+ and ADT1-6T+ are both Mini-Circuits RF transformers, but they differ in their impedance ratio and bandwidth. The ADT1-1+ is a 1:1 transmission line transformer, while the ADT1-6T+ is a 1:6 impedance ratio transformer. Their frequency ranges, insertion loss, and application suitability differ accordingly.
What is the impedance ratio of each transformer?
The ADT1-1+ has a 1:1 impedance ratio (50Ω to 50Ω), while the ADT1-6T+ has a 1:6 impedance ratio (50Ω to 300Ω). This is a fundamental difference that determines their respective applications.
What frequency range does each transformer support?
The ADT1-1+ operates over a frequency range of 0.5 to 500 MHz. The ADT1-6T+ operates over a frequency range of 0.5 to 300 MHz. The ADT1-1+ offers a wider upper frequency limit.
Are the ADT1-1+ and ADT1-6T+ pin-compatible?
Both transformers are housed in Mini-Circuits' standard surface-mount package (typically 0.25" x 0.31" x 0.16"), but their pin configurations and internal connections differ due to the different impedance ratios. They should not be treated as drop-in replacements without verifying the pinout and circuit requirements against the respective datasheets.
What are the typical applications for each transformer?
The ADT1-1+ is typically used for impedance matching, DC isolation, and balanced-to-unbalanced conversion in 50Ω systems. The ADT1-6T+ is used for impedance transformation from 50Ω to 300Ω, commonly in applications such as matching to high-impedance loads, balanced mixers, and antenna systems.
What is the insertion loss of each transformer?
The ADT1-1+ typically exhibits insertion loss of approximately 0.5 dB to 1.0 dB across its frequency range. The ADT1-6T+ typically exhibits insertion loss of approximately 1.0 dB to 2.0 dB across its frequency range. Exact values should be verified from the respective Mini-Circuits datasheets.
Can the ADT1-1+ and ADT1-6T+ be used interchangeably?
No. Because they have different impedance ratios (1:1 vs. 1:6), different frequency ranges, and different insertion loss characteristics, they are not interchangeable. Substitution requires careful evaluation of the impedance matching requirements, frequency of operation, and circuit topology.