Amphenol RF 112198 BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 112198 is an active BNC connector plug designed for RF coaxial applications. This male pin connector features a right-angle solder termination with 50-ohm impedance and operates at frequencies up to 4 GHz. The connector is rated for 500 mating cycles and supports cable groups including RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174. The part is ROHS3 compliant and REACH affected, making it suitable for regulated electronic assemblies. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector interface.

Substiute Parts

112198
Amphenol RFIn Stock: 1208112198 Datasheet
112198
Current Part
112178
Amphenol RFIn Stock: 1329112178 Datasheet
112178
Parametric Equivalent

Key Parameters

Parameter Value
Connector Style BNC
Connector Type Plug, Male Pin
Impedance 50 Ohms
Contact Termination Solder
Shield Termination Crimp
Mounting Type Free Hanging (In-Line), Right Angle
Fastening Type Bayonet Lock
Frequency - Max 4 GHz
Voltage Rating 500 V
Insertion Loss 0.2 dB
Mating Cycles 500
Center Contact Material Brass
Body Material Brass
Body Finish Nickel
Center Contact Plating Gold
Dielectric Material Polyoxymethylene (POM) Acetal
RoHS Status ROHS3 Compliant
MSL Rating 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 112198 are identified based on electrical and mechanical parameter equivalence. The primary substitution criteria include connector style (BNC), connector type (Plug, Male Pin), impedance (50 Ohms), contact termination method (Solder), shield termination (Crimp), mounting configuration (Free Hanging, Right Angle), fastening mechanism (Bayonet Lock), maximum frequency (4 GHz), voltage rating (500 V), insertion loss (0.2 dB), and mating cycle rating (500). Additionally, material composition, plating specifications, dielectric properties, and regulatory compliance (ROHS3, REACH) must align to ensure functional and regulatory equivalence. The substitute part 112178 maintains all critical electrical parameters and mechanical interfaces while differing only in the included accessory components (End Cap versus Sleeve configuration).

Parameter Comparison

Parameter 112198 (Main Part) 112178 (Substitute)
Manufacturer Amphenol RF Amphenol RF
Connector Style BNC BNC
Connector Type Plug, Male Pin Plug, Male Pin
Contact Termination Solder Solder
Shield Termination Crimp Crimp
Impedance 50 Ohms 50 Ohms
Mounting Type Free Hanging (In-Line), Right Angle Free Hanging (In-Line), Right Angle
Fastening Type Bayonet Lock Bayonet Lock
Frequency - Max 4 GHz 4 GHz
Voltage Rating 500 V 500 V
Insertion Loss 0.2 dB 0.2 dB
Mating Cycles 500 500
Center Contact Material Brass Brass
Body Material Brass Brass
Body Finish Nickel Nickel
Center Contact Plating Gold Gold
Dielectric Material Polyoxymethylene (POM) Acetal Polyoxymethylene (POM) Acetal
RoHS Status ROHS3 Compliant ROHS3 Compliant
MSL Rating 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Affected REACH Affected
Included Components 1 Connector, 1 Contact, 1 Ferrule, 1 Sleeve (4 pcs) 1 Connector, 1 End Cap, 1 Ferrule (3 pcs)

Engineering Selection Recommendations

Both the Amphenol RF 112198 and 112178 are active products with identical electrical performance characteristics and regulatory compliance status. Selection between these parts is determined by assembly requirements and the specific accessory components needed for the application. The 112198 includes a sleeve component, while the 112178 includes an end cap. Both parts maintain ROHS3 compliance and REACH affected status, ensuring suitability for regulated markets. The electrical interface, impedance matching, frequency response, and mechanical mounting are functionally equivalent across both part numbers. Component selection should be based on the specific accessory requirement dictated by the end-use assembly configuration.

Frequently Asked Questions (FAQ)

Q: Are the 112198 and 112178 electrically interchangeable?

A: Yes. Both parts maintain identical electrical parameters including 50-ohm impedance, 4 GHz maximum frequency, 0.2 dB insertion loss, and 500 V voltage rating. The RF performance and signal integrity are equivalent.

Q: What is the difference between these two part numbers?

A: The primary difference is the included accessory components. The 112198 includes a sleeve component, while the 112178 includes an end cap. The core connector, contact termination, and shield termination are identical.

Q: Can I use part 112178 in place of 112198 in my assembly?

A: Substitution is valid when the end cap (included with 112178) is compatible with your assembly requirements. If your design specifically requires the sleeve component included with 112198, the 112178 would not be suitable without sourcing the sleeve separately.

Q: Are both parts compliant with current regulations?

A: Yes. Both the 112198 and 112178 are ROHS3 compliant and REACH affected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What cable types are compatible with these connectors?

A: Both connectors support the same cable groups: RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174.

Q: What is the mating cycle rating for these connectors?

A: Both parts are rated for 500 mating cycles, indicating the expected number of connect/disconnect operations before performance degradation.

Q: Do these connectors require any special handling?

A: Both parts have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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