Request Quote
(Ships tomorrow)
TE Connectivity AMP Connectors 221185-9 Equivalent & Substitute Parts
Part Overview
The TE Connectivity AMP Connectors 221185-9 is a BNC connector plug with straight male pin configuration, designed for 75 ohm coaxial cable applications. This connector features crimp termination for both center contact and shield, operates across a temperature range of -55°C to 85°C, and supports frequencies up to 2 GHz. The part is classified as obsolete, necessitating identification of equivalent alternatives for ongoing system support and new applications. Substitute parts must maintain electrical compatibility through matching impedance, connector style, termination method, and mechanical form factor while potentially offering enhanced performance specifications or improved compliance status.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Style | BNC |
| Connector Type | Plug, Male Pin |
| Impedance | 75 Ohms |
| Contact Termination | Crimp |
| Shield Termination | Crimp |
| Mounting Type | Free Hanging (In-Line) |
| Fastening Type | Bayonet Lock |
| Voltage Rating | 500 V |
| Mating Cycles | 500 |
| Number of Ports | 1 |
Substitute Part Grouping Explanation
Substitution of the TE Connectivity 221185-9 is determined by strict adherence to the following electrical and mechanical parameters: connector style (BNC), connector type (plug with male pin), impedance (75 ohms), contact and shield termination method (crimp), mounting configuration (free hanging in-line), fastening mechanism (bayonet lock), voltage rating (500 V), and mating cycle rating (500 cycles). All substitute parts must match these core parameters to ensure mechanical and electrical compatibility within existing cable assemblies and system designs.
Substitute parts are grouped into two categories:
Direct Substitutes: Parts that match all core parameters and cable group compatibility with the original 221185-9, enabling drop-in replacement without design modification.
Functional Equivalents: Parts that match all core electrical and mechanical parameters but are optimized for different cable groups, offering equivalent performance for applications where cable group flexibility exists.
The primary differentiators among substitute options include frequency capability (ranging from 2 GHz to 6 GHz), operating temperature range, dielectric material composition, body material selection, product status (active versus not for new designs), and regulatory compliance status (RoHS3 compliance and REACH affected designation).
Parameter Comparison
| Parameter | 221185-9 (TE Connectivity) | 031-70008-1000 (Amphenol RF) | 031-80108 (Amphenol RF) | 112133 (Amphenol RF) | 112606 (Amphenol RF) | 112955 (Amphenol RF) | 112955-11 (Amphenol RF) | 112958 (Amphenol RF) | HP75BNC12X (Switchcraft Inc.) |
|---|---|---|---|---|---|---|---|---|---|
| Connector Style | BNC | BNC | BNC | BNC | BNC | BNC | BNC | BNC | BNC |
| Connector Type | Plug, Male Pin | Plug, Male Pin | Plug, Male Pin | Plug, Male Pin | Plug, Male Pin | Plug, Male Pin | Plug, Male Pin | Plug, Male Pin | Plug, Male Pin |
| Impedance | 75 Ohms | 75 Ohms | 75 Ohms | 75 Ohms | 75 Ohms | 75 Ohms | 75 Ohms | 75 Ohms | 75 Ohms |
| Contact Termination | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp |
| Shield Termination | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) | Free Hanging (In-Line) | Free Hanging (In-Line) | Free Hanging (In-Line) | 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 | Bayonet Lock | Bayonet Lock | Bayonet Lock | Bayonet Lock | Bayonet Lock |
| Voltage Rating | 500 V | 500 V | 500 V | 500 V | 500 V | 500 V | 500 V | 500 V | 500 V |
| Mating Cycles | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| Frequency - Max | 2 GHz | 4 GHz | 4 GHz | 4 GHz | 4 GHz | 4 GHz | 6 GHz | 4 GHz | Not Specified |
| Operating Temperature | -55°C ~ 85°C | -65°C ~ 165°C | -65°C ~ 165°C | Not Specified | Not Specified | Not Specified | -65°C ~ 165°C | Not Specified | -65°C ~ 165°C |
| Insertion Loss | 0.15 dB | 0.2 dB | 0.2 dB | Not Specified | Not Specified | Not Specified | 0.2 dB | Not Specified | Not Specified |
| RoHS Status | RoHS Non-Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Not For New Designs | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
For RG-59 Cable Group Applications:
The Amphenol RF 031-70008-1000 provides direct substitution for the TE Connectivity 221185-9 within RG-59 cable applications. This part maintains compatibility with AT&T 734 and 734A cable specifications, operates at 4 GHz maximum frequency, and achieves ROHS3 compliance. However, the 031-70008-1000 carries a "Not For New Designs" status, limiting its suitability for new product development. For new designs utilizing RG-59 cable, the Amphenol RF 122391 (TNC connector) or the Amphenol RF 112955-11 (BNC connector optimized for RG-122, 180, 180A, 180B, and 195 cables) offer active product status with ROHS3 compliance.
For Extended Temperature and Frequency Performance:
The Amphenol RF 112955-11 delivers superior performance specifications with 6 GHz maximum frequency capability and -65°C to 165°C operating temperature range, compared to the original part's 2 GHz and -55°C to 85°C specifications. This part is actively manufactured, ROHS3 compliant, and REACH affected. The 112955-11 is optimized for RG-122, 180, 180A, 180B, and 195 cable groups with Belden 1855 and 1865A equivalents.
For Switchcraft Manufacturer Preference:
The Switchcraft Inc. HP75BNC12X provides an alternative from a different manufacturer with active product status and ROHS3 compliance. This part operates across -65°C to 165°C and is optimized for Belden 1855A cable. The HP75BNC12X is REACH unaffected, offering simplified compliance documentation for certain supply chain requirements.
For Cable Group Flexibility:
Multiple Amphenol RF options accommodate different cable specifications: 031-80108 for Belden 8281, 112133 for RG-179 series and Belden 9221, 112606 for RG-11 series and Belden 1620/1859/7731/8213/9292, and 112958 for RG-6 Plenum and Belden 1695A. All active options provide ROHS3 compliance and 500 V voltage rating with 500 mating cycle ratings.
Regulatory Compliance Consideration:
All substitute parts listed achieve ROHS3 compliance, addressing the RoHS non-compliant status of the original 221185-9. Parts designated as REACH Affected (Amphenol RF series) require REACH compliance documentation for European Union supply chains. The Switchcraft HP75BNC12X is REACH unaffected, eliminating this documentation requirement.
Frequently Asked Questions (FAQ)
Q: Can the Amphenol RF 031-70008-1000 directly replace the TE Connectivity 221185-9 in existing assemblies?
A: Yes, the 031-70008-1000 maintains electrical and mechanical compatibility through matching 75 ohm impedance, BNC connector style, crimp termination, bayonet fastening, and free hanging in-line mounting. However, this part carries "Not For New Designs" status, indicating it is suitable for legacy system support only.
Q: What is the primary advantage of selecting the Amphenol RF 112955-11 over other substitutes?
A: The 112955-11 offers the highest frequency capability at 6 GHz (compared to 2-4 GHz for alternatives), extended operating temperature range of -65°C to 165°C, active product status, and ROHS3 compliance. These specifications provide performance headroom for demanding applications and assurance of continued manufacturing availability.
Q: Are all substitute parts compatible with RG-59 cable?
A: No. While the 031-70008-1000 and 122391 are explicitly rated for RG-59 cable, other substitutes are optimized for different cable groups. The 112955-11 is rated for RG-122, 180, 180A, 180B, and 195 cables; 031-80108 for Belden 8281; 112133 for RG-179 series; 112606 for RG-11 series; and 112958 for RG-6 Plenum. Cable group compatibility must be verified for the specific application.
Q: What is the difference between the Amphenol RF 112955 and 112955-11?
A: Both parts are optimized for the same cable groups (RG-122, 180, 180A, 180B, 195, Belden 1855, 1865A) and share identical core specifications. The primary difference is packaging: 112955 is supplied in bag format, while 112955-11 is supplied in bulk format. The 112955-11 additionally specifies 6 GHz maximum frequency and -65°C to 165°C operating temperature, whereas the 112955 does not provide these specifications.
Q: Does the Switchcraft HP75BNC12X offer any compliance advantages?
A: Yes. The HP75BNC12X is designated as REACH unaffected, eliminating the need for REACH compliance documentation required for Amphenol RF parts designated as REACH affected. This simplifies supply chain documentation for European Union applications. The part maintains ROHS3 compliance and active product status.
Q: What packaging options are available for substitute parts?
A: Substitute parts are supplied in multiple packaging formats: bulk packaging (031-70008-1000, 112955-11, HP75BNC12X), bag packaging (112133, 112606, 112955, 122390, 122391), and unspecified packaging (031-80108, 112958). Packaging selection should align with production volume requirements and inventory management practices.
Q: Can TNC connectors (122390, 122391) substitute for the BNC connector 221185-9?
A: No. TNC connectors employ threaded fastening mechanisms, whereas BNC connectors use bayonet locking. These are mechanically and electrically distinct connector styles. The 122390 and 122391 are listed as similar parts but are not direct substitutes due to connector style differences.
Q: What is the significance of the "Not For New Designs" status on the 031-70008-1000?
A: This designation indicates the part is available for legacy system support and repair applications but should not be selected for new product development. Manufacturers typically apply this status to parts approaching end-of-life. For new designs, active status parts such as 031-80108, 112133, 112606, 112955-11, 112958, or HP75BNC12X are recommended.
Q: How does insertion loss compare across substitute options?
A: The original 221185-9 specifies 0.15 dB insertion loss. Amphenol RF parts with specified insertion loss (031-70008-1000, 031-80108, 112955-11) list 0.2 dB. The 122390 and 122391 TNC connectors specify 0.18 dB. Many substitute parts do not provide insertion loss specifications. For applications with strict insertion loss requirements, the original 221185-9 specification should be confirmed against application limits before substitution.
Q: Are all substitute parts rated for 500 V operation?
A: Yes. All substitute parts listed maintain the 500 V voltage rating of the original 221185-9, ensuring compatibility with existing power distribution specifications.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts