TE Connectivity AMP Connectors 414618-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 414618-2 is an SMB connector plug with female socket configuration, designed for 75-ohm coaxial applications. This connector features crimp termination for both center contact and shield, operates across a frequency range up to 4 GHz, and supports free-hanging (in-line) mounting with snap-on fastening. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Substiute Parts

414618-2

TE Connectivity AMP ConnectorsIn Stock: 863414618-2 Datasheet

Current PartRFQ

903-502P-71S

Amphenol RFIn Stock: 1191903-502P-71S Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 414618-2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Connector style (SMB) and type (Plug, Female Socket) must match
• Impedance specification (75 Ohms) is mandatory
• Frequency capability must equal or exceed 4 GHz maximum
• Insertion loss must not exceed 0.3 dB
• Voltage rating must meet or exceed 335 V
• Mating cycle rating must equal or exceed 500 cycles

Mechanical Compatibility:

• Mounting type must be Free Hanging (In-Line)
• Fastening type must be Snap-On
• Operating temperature range must encompass -65°C ~ 165°C
• Body material (Brass) and finish (Nickel) ensure mechanical durability
• Center contact material (Beryllium Copper) with gold plating ensures electrical performance

Environmental & Regulatory Compliance:

• RoHS compliance status must be maintained
• MSL rating of 1 (Unlimited) must be preserved
• REACH and ECCN classifications must align

Termination Consideration: Contact termination method (crimp versus solder) represents a functional difference that affects assembly process but does not preclude substitution when all other parameters are equivalent. Cable group compatibility must be verified for the specific application.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 903-502P-71S as Primary Substitute:

The Amphenol RF 903-502P-71S qualifies as a direct functional equivalent to the TE Connectivity 414618-2 based on matched electrical and mechanical parameters. Both connectors maintain identical impedance (75 Ohms), frequency performance envelope (substitute exceeds minimum 4 GHz requirement at 10 GHz), operating temperature range (-65°C ~ 165°C), mating cycle rating (500 cycles), and insertion loss (0.3 dB). Material specifications for body, contact, and dielectric are identical.

Product Status Advantage:

The 903-502P-71S carries active product status, ensuring ongoing availability and manufacturer support, whereas the 414618-2 is classified as obsolete. This status differential makes the Amphenol RF part the appropriate selection for new designs and long-term system support.

Compliance Alignment:

Both parts maintain RoHS compliance (414618-2: RoHS Compliant; 903-502P-71S: ROHS3 Compliant), MSL rating of 1 (Unlimited), and identical ECCN (EAR99) and HTSUS classifications. Regulatory requirements are satisfied by the substitute.

Termination Method Consideration:

The primary functional difference is contact termination: the original part uses crimp termination while the substitute uses solder termination. This difference affects assembly methodology but does not impact electrical or mechanical compatibility. Selection between crimp and solder termination depends on assembly process requirements and cable preparation capabilities within the application environment.

Cable Group Compatibility:

The substitute supports an expanded cable group (RG-174, 179, 187, 188, 316) compared to the original (RG-179, 187). This expanded compatibility provides greater flexibility for cable selection while maintaining full backward compatibility with original cable specifications.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 903-502P-71S directly replace the TE Connectivity 414618-2 in existing assemblies?

A: Yes, the 903-502P-71S provides direct electrical and mechanical replacement. Both connectors share identical SMB plug configuration, 75-ohm impedance, snap-on fastening, and free-hanging mounting. The primary consideration is termination method: the original uses crimp termination while the substitute uses solder termination. Assembly process compatibility must be evaluated based on available equipment and cable preparation procedures.

Q: What is the significance of the frequency rating difference (4 GHz versus 10 GHz)?

A: The substitute's 10 GHz maximum frequency rating exceeds the original 4 GHz specification. This represents enhanced capability that maintains full backward compatibility. Applications operating at or below 4 GHz experience no performance degradation. The higher frequency rating provides design margin and supports potential future applications without connector replacement.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts maintain RoHS compliance, though the substitute carries the newer ROHS3 designation. Both share identical MSL (1 - Unlimited), ECCN (EAR99), and HTSUS classifications. Regulatory requirements for either part are equivalent.

Q: How does the expanded cable group of the substitute affect compatibility?

A: The substitute supports RG-174, 179, 187, 188, and 316 cables, compared to the original's RG-179 and 187. This expanded compatibility is additive and does not restrict use with original cable specifications. Applications using RG-179 or RG-187 cables experience no change in performance or compatibility.

Q: What assembly considerations apply when transitioning from crimp to solder termination?

A: Crimp termination (original part) requires crimping tools and prepared cable ends. Solder termination (substitute) requires soldering equipment and appropriate flux. The choice depends on available assembly infrastructure. Both termination methods achieve equivalent electrical performance when properly executed. Cable preparation procedures differ between methods and must be verified against assembly process capabilities.

Q: Is the substitute suitable for new product designs?

A: Yes. The Amphenol RF 903-502P-71S carries active product status, ensuring long-term availability and manufacturer support. The TE Connectivity 414618-2 is obsolete. For new designs, the substitute is the appropriate selection to ensure component availability throughout the product lifecycle.

Q: Do insertion loss and mating cycle ratings remain equivalent?

A: Yes. Both connectors specify 0.3 dB insertion loss and 500 mating cycles. These performance characteristics are identical and support equivalent system reliability and signal integrity.