TE Connectivity AMP Connectors 413985-7 SMB Coaxial Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 413985-7 is an SMB connector plug with female socket configuration, designed for 50-ohm RF applications. This coaxial connector operates at frequencies up to 4 GHz and supports both crimp and solder termination methods for center contact attachment. The connector is rated for -65°C to 165°C operating temperature range with a maximum voltage rating of 335 V and 500 mating cycles. The part is currently active in production status with RoHS compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative termination preferences while maintaining electrical and mechanical compatibility within the SMB connector category.

Substiute Parts

413985-7

TE Connectivity AMP ConnectorsIn Stock: 1068413985-7 Datasheet

Current PartRFQ

413985-3

TE Connectivity AMP ConnectorsIn Stock: 3146413985-3 Datasheet

Parametric EquivalentRFQ

903-370P-51S

Amphenol RFIn Stock: 1138903-370P-51S Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 413985-7 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Connector style must be SMB
• Connector type must be Plug, Female Socket
• Impedance must be 50 Ohms
• Frequency maximum must be 4 GHz or greater
• Mounting type must be Free Hanging (In-Line)
• Fastening type must be Snap-On
• Operating temperature range must encompass -65°C to 165°C
• Voltage rating must be 335 V or greater
• Mating cycles must be 500 or greater
• Insertion loss must be 0.3 dB or less
• Shield termination must be Crimp
• Center contact material must be Beryllium Copper
• Body material must be Brass with Nickel finish
• Center contact plating must be Gold
• Dielectric material must be Polytetrafluoroethylene (PTFE)

Termination Flexibility: Contact termination may vary between Crimp or Solder options, as both methods are explicitly supported by the main part specification. Cable group compatibility may include additional cable types beyond the base specification, provided all base cable groups (RG-174, 188, 316) are supported.

Compliance Alignment: Substitute parts must maintain RoHS compliance status and REACH affected designation. MSL rating must be 1 (Unlimited) or equivalent.

Parameter Comparison

Engineering Selection Recommendations

413985-3 (TE Connectivity AMP Connectors)

The 413985-3 is a parametric equivalent to the 413985-7, manufactured by the same supplier. Both parts share identical electrical specifications, mechanical dimensions, and material composition. The 413985-3 carries ROHS3 compliance status compared to the RoHS compliant designation of the main part, representing an updated compliance certification. This substitute is suitable for applications requiring either crimp or solder termination flexibility. The 413985-3 maintains active product status with higher inventory availability (3079 pcs) compared to the main part (966 pcs).

903-370P-51S (Amphenol RF)

The 903-370P-51S is a direct manufacturer substitute from Amphenol RF that meets all electrical and mechanical substitution criteria. This part differs in contact termination specification, supporting solder termination exclusively rather than the dual crimp or solder capability of the main part. The 903-370P-51S expands cable group compatibility to include RG-179 and RG-187 in addition to the base cable groups. This substitute carries ROHS3 compliance and maintains active product status with 1068 pcs inventory availability. Selection of this part is appropriate for applications where solder termination is the preferred assembly method and expanded cable compatibility is beneficial.

Frequently Asked Questions (FAQ)

Q: Can the 413985-3 be used as a direct replacement for the 413985-7?

A: Yes. The 413985-3 is a parametric equivalent with identical electrical and mechanical specifications. Both parts support crimp or solder termination, operate across the same temperature range, and maintain equivalent RF performance characteristics at 4 GHz maximum frequency. The primary difference is the updated ROHS3 compliance certification on the 413985-3.

Q: What is the key difference between the 413985-7 and the 903-370P-51S?

A: The primary difference is contact termination capability. The 413985-7 supports both crimp and solder termination methods, while the 903-370P-51S supports solder termination only. The 903-370P-51S also provides expanded cable group compatibility, supporting RG-179 and RG-187 cables in addition to the standard RG-174, 188, and 316 groups. All other electrical and mechanical parameters are equivalent.

Q: Are these connectors compatible with the same cable types?

A: The 413985-7 and 413985-3 are compatible with RG-174, RG-188, and RG-316 cables. The 903-370P-51S supports these same cable types plus RG-179 and RG-187. All three connectors maintain 50-ohm impedance matching across their respective cable group specifications.

Q: What is the significance of the MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that the connector has unlimited shelf life and does not require special moisture-controlled storage conditions. This classification applies to all three parts and simplifies inventory management and component handling procedures.

Q: Can I use the 903-370P-51S in an application that currently uses the 413985-7 with crimp termination?

A: No. The 903-370P-51S supports solder termination exclusively. If your application requires crimp termination, use the 413985-7 or 413985-3. If your application can accommodate solder termination, the 903-370P-51S is suitable.

Q: What is the maximum operating frequency for all three parts?

A: All three connectors operate at a maximum frequency of 4 GHz. Insertion loss is specified at 0.3 dB across all parts, ensuring equivalent RF performance characteristics.

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

A: All three parts are REACH affected and carry EAR99 ECCN classification. The 413985-7 carries RoHS compliance status, while the 413985-3 and 903-370P-51S carry ROHS3 compliance status. All parts share identical HTSUS classification (8536.69.4010) and MSL rating (1 - Unlimited).

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

A: All three parts are rated for 500 mating cycles, indicating equivalent mechanical durability and connector lifespan under normal use conditions.