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Amphenol RF 68175-1005 BNC Connector Plug Equivalent & Substitute Parts
Part Overview
The Amphenol RF 68175-1005 is a BNC connector plug designed for 50 ohm coaxial cable applications. This male pin connector features crimp or solder termination and is rated for free hanging (in-line) mounting configurations. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Alternative equivalent and substitute parts are available to support ongoing maintenance, repair, and legacy system requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 68175-1005 |
| Manufacturer | Amphenol RF |
| Connector Style | BNC |
| Connector Type | Plug, Male Pin |
| Impedance | 50 Ohms |
| Contact Termination | Crimp or Solder |
| Shield Termination | Crimp |
| Mounting Type | Free Hanging (In-Line) |
| Fastening Type | Bayonet Lock |
| Frequency - Max | 2 GHz |
| Voltage Rating | 500 V |
| Operating Temperature | -65°C ~ 165°C |
| Insertion Loss | 0.2 dB |
| RoHS Status | ROHS3 Compliant |
| Product Status | Not For New Designs |
Substitute Part Grouping Explanation
Substitute parts for the Amphenol RF 68175-1005 are categorized based on the following critical parameters that determine functional compatibility:
Direct Equivalent (Same Impedance - 50 Ohms):
- Impedance: 50 Ohms
- Connector Style: BNC
- Connector Type: Plug, Male Pin
- Mounting Type: Free Hanging (In-Line)
- Fastening Type: Bayonet Lock
- Voltage Rating: 500 V
- Insertion Loss: 0.2 dB
Impedance-Dependent Substitutes (75 Ohms - Not Interchangeable):
- Winchester Interconnect parts (SBC8212, SBC9100, SBC9240, SBC9274, SBC9275) operate at 75 ohms impedance and are not electrically compatible with 50 ohm systems. These parts are listed for reference only and cannot replace the 68175-1005 in 50 ohm applications.
Direct Equivalent from Amphenol RF:
- 68175-5RFX: Active product status, enhanced frequency capability (4 GHz), identical mechanical and electrical parameters for 50 ohm applications.
Similar Parts from Alternative Manufacturers (50 Ohms):
- TE Connectivity 1-221128-7: 50 ohm BNC plug with 4 GHz frequency capability
- Pomona Electronics 5285: 50 ohm BNC plug with 4 GHz frequency capability
Parameter Comparison
| Parameter | 68175-1005 (Main) | 68175-5RFX | 1-221128-7 | 5285 |
|---|---|---|---|---|
| Manufacturer | Amphenol RF | Amphenol RF | TE Connectivity | Pomona Electronics |
| Connector Style | BNC | BNC | BNC | BNC |
| Connector Type | Plug, Male Pin | Plug, Male Pin | Plug, Male Pin | Plug, Male Pin |
| Impedance | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms |
| Contact Termination | Crimp or Solder | Crimp | Crimp | Crimp or Solder |
| Shield Termination | Crimp | Crimp | Crimp | Crimp |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) | Free Hanging (In-Line) | Free Hanging (In-Line) |
| Fastening Type | Bayonet Lock | Bayonet Lock | Bayonet Lock | Bayonet Lock |
| Frequency - Max | 2 GHz | 4 GHz | 4 GHz | 4 GHz |
| Voltage Rating | 500 V | 500 V | 500 V | 500 V |
| Insertion Loss | 0.2 dB | 0.2 dB | 0.2 dB | Not Specified |
| Product Status | Not For New Designs | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | RoHS Compliant | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation: Amphenol RF 68175-5RFX
The 68175-5RFX is the direct equivalent from the original manufacturer. It maintains identical mechanical and electrical specifications for 50 ohm applications while offering enhanced frequency capability (4 GHz versus 2 GHz). The part carries active product status and RoHS compliance certification. This part is the preferred choice for direct replacement in legacy systems and new applications requiring Amphenol RF connectors.
Alternative Recommendation: Pomona Electronics 5285
The Pomona Electronics 5285 provides functional equivalence with 50 ohm impedance, 4 GHz frequency capability, and ROHS3 compliance. This part supports both crimp and solder termination methods, matching the original part's flexibility. Selection of this alternative is appropriate when Pomona Electronics components are specified or preferred within the system design.
Secondary Alternative: TE Connectivity 1-221128-7
The TE Connectivity 1-221128-7 offers 50 ohm impedance and 4 GHz frequency capability. This part carries RoHS non-compliant status and should be selected only when legacy system requirements or existing TE Connectivity component specifications mandate its use. Operating temperature range (-55°C to 85°C) is narrower than the original part.
Not Recommended for Substitution: Winchester Interconnect Parts (SBC8212, SBC9100, SBC9240, SBC9274, SBC9275)
These parts operate at 75 ohm impedance and are not electrically compatible with 50 ohm systems. Substitution would result in impedance mismatch and system performance degradation.
Frequently Asked Questions (FAQ)
Q: Can I use a 75 ohm BNC connector in place of the 68175-1005?
A: No. The 68175-1005 is rated for 50 ohm systems. Winchester Interconnect parts (SBC8212, SBC9100, SBC9240, SBC9274, SBC9275) operate at 75 ohms and are not electrically compatible. Impedance mismatch will cause signal reflections and system performance degradation.
Q: What is the difference between the 68175-1005 and 68175-5RFX?
A: Both parts are 50 ohm BNC plugs from Amphenol RF with identical mechanical mounting and electrical specifications. The primary differences are: (1) 68175-5RFX has active product status versus "Not For New Designs" for 68175-1005; (2) 68175-5RFX supports 4 GHz maximum frequency versus 2 GHz for 68175-1005; (3) 68175-5RFX termination is crimp only, while 68175-1005 supports crimp or solder.
Q: Are the Pomona Electronics 5285 and TE Connectivity 1-221128-7 direct replacements?
A: Both parts are functionally equivalent for 50 ohm applications with 4 GHz frequency capability and identical mechanical interfaces. The Pomona Electronics 5285 is preferred due to ROHS3 compliance matching the original part. The TE Connectivity part carries RoHS non-compliant status and has a narrower operating temperature range.
Q: What cable types are compatible with the 68175-1005?
A: The 68175-1005 is specified for RG-59, Belden 1426A, 1505A, 8281, 9100, and 9278 cables. The 68175-5RFX supports RG-59, Belden 1426A, 1505A, 9100, and 9278. The Pomona Electronics 5285 is specified for RG-58, 58A, 58C, 141, and 141A cables. Verify cable compatibility when selecting a substitute part.
Q: Can I use solder termination with the 68175-5RFX?
A: No. The 68175-5RFX supports crimp termination only. The original 68175-1005 supports both crimp and solder termination. If solder termination is required, the Pomona Electronics 5285 supports both methods.
Q: What is the operating temperature range for each substitute?
A: The 68175-1005 and 68175-5RFX both operate from -65°C to 165°C. The Pomona Electronics 5285 does not specify an operating temperature range. The TE Connectivity 1-221128-7 operates from -55°C to 85°C, which is narrower than the original part.
Q: Are all substitute parts RoHS compliant?
A: The 68175-1005 and Pomona Electronics 5285 are ROHS3 compliant. The 68175-5RFX is RoHS compliant. The TE Connectivity 1-221128-7 is RoHS non-compliant and should be used only when legacy system requirements mandate it.
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