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Canare KC1.2R-0020-SL 75 ома Микро-миниатюрни коаксиални конектори Кабелни комплекти
Canare KC1.2R-0020-SL 75 Ohm Micro-miniature Coaxial Cable Assembly е професионален кабелен асемблаж, предназначен за стабилно предаване на HD-SDI, 3G-SDI и UHD видео сигнали. С оптимизиран 75 Ohm импеданс, micro-miniature дизайн и здрава конструкция, KC1.2R-0020-SL е отличен избор за телевизионни студиа, излъчвателни съоръжения и професионални AV инсталации, където компактността, качеството и надеждността на сигнала са от съществено значение.
Description
Key Features and Benefits
- DC to 12 GHz; meets the SMPTE 2082-1 return loss requirements.
Return loss: 26 dB @ 1.5 GHz, 20 dB @ 3 GHz, 15 dB @ 6 GHz, 10 dB @ 12 GHz - Snap-on engaging
- Durable design; beneficial for maintenance.
- Temperature range; -25 to 85 degree C
- The best flexibility on PCB design
- Note: BCJ-FKCM requires the nut driver bit NDT-7/16 for installation and removal.
Contact for the details.
PCB Mount Receptacles12G-SDI
| Type | Model | Description | Standard package |
|---|---|---|---|
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KCM-PC | Straight | 20 pcs |
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KCM-LR | Right Angle | 20 pcs |
KC to BNC Conversion Adapter12G-SDI
| Type | Model | Description | Nut Driver Bit | Standard package |
|---|---|---|---|---|
![]() |
BCJ-KCM | Rear Mount, Hex Nut | – | 20 pcs |
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BCJ-FKCM | Front Mount, Grooved Nut | NDT-7/16 | 20 pcs |
Cable Assemblies12G-SDI
| Type | Model | Description | Length(mm) | |
|---|---|---|---|---|
| Plug A | Plug B | |||
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KC1.2R-0015-S | Straight | Straight | 150 |
| KC1.2R-0020-S | 200 | |||
| KC1.2R-0030-S | 300 | |||
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KC1.2R-0015-L | Right Angle | Right Angle | 150 |
| KC1.2R-0020-L | 200 | |||
| KC1.2R-0030-L | 300 | |||
![]() |
KC1.2R-0015-SL | Straight | Right Angle | 150 |
| KC1.2R-0020-SL | 200 | |||
| KC1.2R-0030-SL | 300 | |||
- Jacket: FEP(blue)

Return loss
Interface to Termination (reference)
Technical Note
Voltage Standing – wave Ratio (VSWR) and Return Loss
Terminating the receiving end of a limited length coaxial cable using a resistance value not equal to its characteristic impedance creates a reflected wave that returns back down the cable to the sending end. The result is interference developing between the travelling wave and the return wave which results in a standing wave that causes voltage levels to fluctuate. The degree to which terminating resistance matches the characteristic impedance is indicated using the VSWR or voltage standing-wave ratio standard shown in Fig. 1. Going hand in hand with the VSWR ratio is the return loss factor which measures the size of the reflected wave current in relation to the travelling wave current. (See Fig. 2)

Fig. 1 Voltage Distribution Over Coaxial Cable
| VSWR | Return Loss (dB) |
|---|---|
| 2 | 9.54 |
| 1.5 | 13.98 |
| 1.2 | 20.83 |
| 1.1 | 26.44 |
| 1.05 | 32.26 |
| 1.02 | 40.09 |
| 1.01 | 46.06 |
Fig. 2 VSWR to Return Loss Conversion Table
Additional information
| Standard package, pcs. | 20pcs., 100pcs., 10pcs., 1pc. |
|---|
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