70451-1011LF vs QR/P18-24SC
| Part Number |
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| Category | Backplane Connectors - Specialized | Backplane Connectors - Specialized |
| Manufacturer | Amphenol ICC (FCI) | Hirose Electric Co Ltd |
| Description | HDR STR SIG 4R 72POS PF | CONN RECEPT HOUSING 1.5MM 24 POS |
| Package | - | - |
| Series | Metral? | QR/P18 |
| Mounting Type | Through Hole | Free Hanging (In-Line) |
| Termination | Press-Fit | IDC |
| Contact Finish | Gold | Gold |
| Color | Natural | Black |
| Number of Positions | 72 | 24 |
| Pitch | 0.079" (2.00mm) | 0.059" (1.50mm) |
| Connector Type | Header, Male Pins | Receptacle, Female Sockets |
| Contact Finish Thickness | 30µin (0.76µm) | 8µin (0.20µm) |
| Number of Positions Loaded | All | All |
| Number of Rows | 4 | - |
| Connector Style | - | Rack and Panel |
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1. How to choose the appropriate backplane connector?
When selecting backplane connectors, factors such as electrical performance (such as signal integrity, data transmission rate), physical size, number of insertions and removals, durability, application environment (temperature, humidity), and compatibility should be considered.
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2. How durable is the backplane connector?
Backplane connectors are designed to provide long-term reliable performance in high insertion and extraction frequencies and complex environments. High end models typically have a lifespan of thousands of insertions and removals, and can maintain stable connections in high temperature, vibration, and impact environments.
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3. How do backplane connectors ensure signal integrity?
Backplane connectors ensure signal integrity in high-speed data transmission and reduce the impact of noise and interference through optimized designs such as shielding technology, differential signal transmission, and low crosstalk design.
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4. Is the installation and maintenance of dedicated backplane connectors complicated?
The installation of dedicated backplane connectors typically requires professional tools and technical support, especially in high-density applications. The maintenance requirements are high because high-speed data transmission requires strict integrity and accuracy of the connection.

