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Amphenol RF 112405-10-2 BNC Connector Jack Equivalent & Substitute Parts
Part Overview
The Amphenol RF 112405-10-2 is a BNC straight PCB jack connector designed for through-hole solder termination applications. This female socket connector operates at 75 ohms impedance with a maximum frequency rating of 4 GHz and supports bayonet lock fastening. The connector is constructed with phosphor bronze center contacts, brass body with nickel finish, and PTFE dielectric material. The part maintains active product status and is ROHS3 compliant with REACH affected designation.
Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity. Substitutes are categorized based on impedance matching and electrical parameter compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 112405-10-2 |
| Manufacturer | Amphenol RF |
| Connector Style | BNC |
| Connector Type | Jack, Female Socket |
| Impedance | 75 Ohms |
| Mounting Type | Through Hole |
| Contact Termination | Solder |
| Fastening Type | Bayonet Lock |
| Frequency - Max | 4 GHz |
| Operating Temperature | -65°C ~ 165°C |
| Mating Cycles | 500 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts are organized into two primary groups based on impedance specification:
Group 1: 75 Ohm Impedance (Direct Impedance Match) Substitutes in this group maintain the 75 ohm impedance specification of the main part. These parts are electrically equivalent for applications requiring 75 ohm characteristic impedance and are suitable for direct replacement in existing designs without impedance mismatch considerations.
Group 2: 50 Ohm Impedance (Alternative Impedance) Substitutes in this group operate at 50 ohm impedance. These parts are functionally equivalent BNC jack connectors with identical mechanical mounting, solder termination, and bayonet lock fastening. Selection of 50 ohm alternatives requires circuit design verification to confirm impedance compatibility with the application.
All substitute parts share the following critical parameters with the main part:
- Connector style: BNC
- Connector type: Jack, Female Socket
- Contact termination: Solder
- Shield termination: Solder
- Mounting type: Through Hole
- Fastening type: Bayonet Lock
- Maximum frequency: 4 GHz
- Number of ports: 1
- Mating cycles: 500
- Housing color: Silver
- RoHS compliance: ROHS3 Compliant
- ECCN: EAR99
- HTSUS: 8536.69.4010
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Impedance (Ohms) | Center Contact Material | Body Material | Body Finish | Center Contact Plating | Dielectric Material | Operating Temperature | Voltage Rating | Insertion Loss | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 112405-10-2 | Amphenol RF | 75 | Phosphor Bronze | Brass | Nickel | Gold | PTFE | -65°C ~ 165°C | Not Specified | Not Specified | 1135 |
| 031-5329-72RFX | Amphenol RF | 75 | Phosphor Bronze | Brass | Nickel | Gold | PBT, Polyester | Not Specified | 500 V | 0.2 dB | 1395 |
| 71K101-400A5 | Rosenberger | 75 | Beryllium Copper | Brass | Nickel | Gold | PTFE | -65°C ~ 165°C | 400 V | Not Specified | 1209 |
| 031-5329-51RFX | Amphenol RF | 50 | Phosphor Bronze | Brass | Nickel | Silver | PBT | -20°C ~ 165°C | 500 V | 0.2 dB | 2181 |
| 031-5329-52RFX | Amphenol RF | 50 | Phosphor Bronze | Brass | Nickel | Gold | PBT, Polyester | Not Specified | 500 V | 0.2 dB | 2854 |
| 1-1337445-0 | TE Connectivity AMP Connectors | 50 | Brass | Brass | Silver | Silver | PTFE | -65°C ~ 165°C | 500 V | Not Specified | 2400 |
| 227699-1 | TE Connectivity AMP Connectors | 50 | Phosphor Bronze | Zinc | Nickel | Silver | PBT, Polyester | -55°C ~ 85°C | 500 V | Not Specified | 923 |
| 5221123-2 | TE Connectivity AMP Connectors | 50 | Phosphor Bronze | Zinc | Tin | Gold | Polyester | -55°C ~ 85°C | 500 V | Not Specified | 3397 |
| 5222420-1 | TE Connectivity AMP Connectors | 50 | Phosphor Bronze | Brass | Nickel | Silver | Polyester | -55°C ~ 85°C | 500 V | Not Specified | 1520 |
| 5413969-2 | TE Connectivity AMP Connectors | 50 | Beryllium Copper | Zinc | Tin | Gold | PTFE | -55°C ~ 85°C | 500 V | Not Specified | 5912 |
| 6274315-1 | TE Connectivity AMP Connectors | 50 | Phosphor Bronze | Zinc | Tin | Silver | PPO | -55°C ~ 85°C | 500 V | Not Specified | 803 |
Engineering Selection Recommendations
75 Ohm Impedance Substitutes
The Amphenol RF 031-5329-72RFX provides direct impedance equivalence to the main part with identical 75 ohm specification. This part maintains ROHS3 compliance and REACH affected status. The primary difference is dielectric material composition (PBT/Polyester versus PTFE) and specified voltage rating of 500 V with 0.2 dB insertion loss. Operating temperature specification is not provided for this part.
The Rosenberger 71K101-400A5 offers 75 ohm impedance with PTFE dielectric matching the main part's material specification. This part maintains the extended operating temperature range of -65°C to 165°C and is RoHS compliant. The voltage rating is specified at 400 V. Center contact material differs (beryllium copper versus phosphor bronze). This part is suitable for applications requiring extended temperature performance.
50 Ohm Impedance Substitutes
Multiple 50 ohm alternatives are available from both Amphenol RF and TE Connectivity. These parts are mechanically and functionally equivalent but operate at different impedance specification. Selection requires verification that the application circuit design accommodates 50 ohm characteristic impedance.
Amphenol RF 031-5329-51RFX and 031-5329-52RFX both provide 50 ohm impedance with specified insertion loss of 0.2 dB and 500 V voltage rating. Both maintain ROHS3 compliance. The 031-5329-51RFX features silver center contact plating with PBT dielectric. The 031-5329-52RFX features gold center contact plating with PBT/Polyester dielectric.
TE Connectivity parts 1-1337445-0, 227699-1, 5221123-2, 5222420-1, 5413969-2, and 6274315-1 all provide 50 ohm impedance with 500 V voltage rating and ROHS3 compliance (except 227699-1 and 5222420-1 which are RoHS compliant). These parts vary in body material, finish, center contact material, and dielectric composition. Operating temperature ranges for TE Connectivity parts are limited to -55°C to 85°C, which is narrower than the main part specification.
All substitute parts maintain bayonet lock fastening, through-hole solder termination, 4 GHz maximum frequency, and 500 mating cycles.
Frequently Asked Questions (FAQ)
Q: Can the 50 ohm substitute parts be used directly in place of the 112405-10-2?
A: 50 ohm parts are mechanically compatible and share identical connector style, mounting type, and termination method. However, impedance mismatch between 50 ohm and 75 ohm systems creates signal reflection and insertion loss. Use 50 ohm substitutes only when the circuit design operates at 50 ohm impedance specification.
Q: What is the difference between the two 75 ohm substitute options?
A: The Amphenol RF 031-5329-72RFX differs from the main part in dielectric material (PBT/Polyester versus PTFE) and provides specified electrical performance data (0.2 dB insertion loss, 500 V rating). The Rosenberger 71K101-400A5 maintains PTFE dielectric and extended temperature range but uses beryllium copper center contacts and specifies 400 V voltage rating.
Q: Are all substitute parts RoHS compliant?
A: All listed substitute parts are RoHS compliant. Most are ROHS3 compliant. TE Connectivity parts 227699-1 and 5222420-1 are RoHS compliant without specific ROHS3 designation.
Q: What operating temperature range should I verify when selecting a substitute?
A: The main part operates from -65°C to 165°C. The Amphenol RF 031-5329-72RFX does not specify operating temperature. The Rosenberger 71K101-400A5 maintains the -65°C to 165°C range. TE Connectivity 50 ohm parts are limited to -55°C to 85°C. Verify that the selected substitute's temperature range meets application requirements.
Q: Do all substitute parts have the same mating cycle rating?
A: Yes, all substitute parts listed maintain 500 mating cycles, matching the main part specification.
Q: What is the significance of center contact material differences?
A: The main part uses phosphor bronze center contacts. Substitutes use phosphor bronze, brass, or beryllium copper. These materials affect contact resistance, durability, and thermal characteristics. Material selection should be verified against application requirements for contact force and environmental exposure.
Q: Are there inventory considerations when selecting a substitute?
A: Inventory levels vary across substitute parts. The main part has 1135 units in stock. TE Connectivity 5413969-2 has the highest inventory at 5912 units. Amphenol RF 031-5329-72RFX has 1395 units. Inventory availability may influence supply chain decisions.
Q: What does the insertion loss specification indicate?
A: Insertion loss measures signal attenuation through the connector. Amphenol RF 031-5329-72RFX and 031-5329-52RFX specify 0.2 dB insertion loss. The main part does not specify insertion loss. Lower insertion loss values indicate better signal transmission efficiency at high frequencies.
Q: Can I use a 50 ohm connector in a 75 ohm video application?
A: Video applications typically operate at 75 ohm impedance. Using 50 ohm connectors creates impedance mismatch that degrades signal quality. Use 75 ohm substitutes (031-5329-72RFX or 71K101-400A5) for video applications.
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