APH-NJ-TNCP Coaxial Connector Adapter - Equivalent & Substitute Parts

Part Overview

The APH-NJ-TNCP is a coaxial connector adapter manufactured by Amphenol RF that converts between N Jack (female socket) and TNC Plug (male pin) connectors. This adapter operates at 50 Ohms impedance and supports frequencies up to 11 GHz, making it suitable for RF and microwave applications requiring series conversion between N and TNC connector types.

The APH-NJ-TNCP is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for applications currently utilizing this adapter configuration.

Substiute Parts

APH-NJ-TNCP

Amphenol RFIn Stock: 1190APH-NJ-TNCP Datasheet

Current PartRFQ

242131

Amphenol RFIn Stock: 1149242131 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the APH-NJ-TNCP is determined by the following critical parameters that must remain constant:

Mandatory Matching Parameters:

• Impedance: 50 Ohms
• Adapter Series: N to TNC conversion capability
• Frequency - Max: 11 GHz or greater
• Style: Straight configuration
• Mounting Type: Free Hanging (In-Line)
• Operating Temperature Range: -40°C ~ 85°C or wider
• Fastening Type: Threaded connections

Connector Gender Configuration: The APH-NJ-TNCP converts from N Jack (female socket) to TNC Plug (male pin). Substitute parts must maintain electrical and mechanical compatibility with this gender configuration or provide the reverse conversion (TNC Plug to N Jack) that achieves the same functional result in system applications.

The substitute part 242131 provides the reverse conversion path (TNC Plug to N Jack) while maintaining all critical electrical and mechanical parameters, making it functionally equivalent for applications requiring N-to-TNC series conversion.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 242131

The part number 242131 is the recommended substitute for the obsolete APH-NJ-TNCP. Selection rationale:

1. Electrical Compatibility: Both parts operate at 50 Ohms impedance with identical frequency specifications (11 GHz maximum). All electrical parameters match exactly.

2. Mechanical Compatibility: Both adapters feature straight configuration, free-hanging in-line mounting, and threaded fastening. Physical dimensions and mating cycle ratings are identical.

3. Material Specifications: Identical construction using brass bodies with nickel finish, phosphor bronze center contacts with gold plating, and PTFE dielectric material.

4. Product Status Advantage: While APH-NJ-TNCP is obsolete, 242131 maintains active product status with current manufacturing support and availability.

5. Compliance Enhancement: 242131 carries ROHS3 Compliant certification, exceeding the RoHS Compliant status of the original part. Both parts are EAR99 classified and share identical HTSUS codes.

6. Functional Equivalence: The reverse connector gender configuration (TNC Plug to N Jack versus N Jack to TNC Plug) provides identical functional capability for N-to-TNC series conversion applications.

Frequently Asked Questions (FAQ)

Q: Can 242131 directly replace APH-NJ-TNCP in existing applications?

A: Yes. Both adapters provide N-to-TNC series conversion with identical electrical and mechanical specifications. The reverse gender configuration of 242131 (TNC Plug input to N Jack output) achieves the same functional result as APH-NJ-TNCP (N Jack input to TNC Plug output) in system applications.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution requires matching impedance (50 Ohms), adapter series (N to TNC), maximum frequency (11 GHz), style (straight), mounting type (free hanging in-line), operating temperature range (-40°C to 85°C), and fastening type (threaded). All these parameters are identical between APH-NJ-TNCP and 242131.

Q: Does the reverse connector gender configuration affect compatibility?

A: No. Both adapters convert between N and TNC connector series. The gender reversal (which end is plug versus jack) does not affect electrical performance or mechanical fit when properly integrated into system configurations.

Q: What is the difference in RoHS compliance between the two parts?

A: APH-NJ-TNCP carries RoHS Compliant certification. 242131 carries ROHS3 Compliant certification, which represents a more current regulatory standard. Both parts meet RoHS requirements; 242131 meets an enhanced version.

Q: Are there packaging differences between these parts?

A: APH-NJ-TNCP packaging is not specified in available data. 242131 is supplied in Bag packaging. Confirm packaging requirements with your procurement specifications.

Q: What is the inventory status for these parts?

A: Both APH-NJ-TNCP and 242131 show 1121 pieces in new original stock. APH-NJ-TNCP is obsolete; 242131 is active product with ongoing availability.

Q: Are there any frequency or temperature limitations I should consider?

A: Both adapters operate identically across the specified range: frequencies to 11 GHz and operating temperatures from -40°C to 85°C. No additional limitations apply to either part.