Pomona Electronics 72959 SMA Connector Plug - Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 72959 is an SMA connector plug with male pin configuration, designed for 50-ohm coaxial cable applications. This right-angle solder-terminated connector operates at frequencies up to 12.4 GHz and is compatible with RG-141, RG-174, RG-188, and RG-316 cable groups. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this connector type is specified.

Substiute Parts

72959

Pomona ElectronicsIn Stock: 118672959 Datasheet

Current PartRFQ

72960

Pomona ElectronicsIn Stock: 88172960 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Pomona 72959 is determined by strict equivalence in the following parameters:

• Connector Style & Type: SMA plug with male pin configuration
• Impedance: 50-ohm characteristic impedance
• Mounting Configuration: Free hanging (in-line), right-angle orientation
• Frequency Rating: Maximum 12.4 GHz operation
• Operating Temperature Range: -65°C to 165°C
• Mating Cycles: 500 cycles minimum
• Compliance: ROHS3 compliant

The primary distinction between the 72959 and its substitute is the termination method. The 72959 uses solder termination for both contact and shield, while substitute part 72960 employs crimp termination. This difference affects cable group compatibility and assembly methodology but does not alter the electrical or mechanical interface characteristics that define SMA connector interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The Pomona 72960 serves as the active-status equivalent to the obsolete 72959. Both connectors maintain identical SMA interface specifications, impedance characteristics, frequency ratings, and operating temperature ranges. The 72960 is ROHS3 compliant and currently in active production status, making it the appropriate selection for applications requiring the 72959 specification.

Selection between these parts depends on termination methodology and cable compatibility requirements. The 72959 solder termination is suitable for applications using RG-141, RG-174, RG-188, or RG-316 cables. The 72960 crimp termination accommodates RG-142 and RG-400 cable groups and provides a higher voltage rating of 500 V compared to the 72959's 375 V rating.

Frequently Asked Questions (FAQ)

Q: Can the 72960 directly replace the 72959 in existing assemblies?

A: Electrical and mechanical interface compatibility is maintained. However, termination method differs: the 72959 requires solder attachment while the 72960 uses crimp termination. Cable group compatibility also differs, so verify that your cable type matches the selected connector variant.

Q: What is the significance of the different cable groups listed for each part?

A: Cable group designation indicates the coaxial cable types for which each connector is optimized. The 72959 is specified for RG-141, RG-174, RG-188, and RG-316 cables. The 72960 is specified for RG-142 and RG-400 cables. Cable impedance and physical dimensions must match the connector specification.

Q: Does the higher voltage rating of the 72960 affect compatibility?

A: The 72960's 500 V rating exceeds the 72959's 375 V rating. This represents an improvement in electrical capability and does not create incompatibility. Applications operating within the 72959's 375 V specification remain fully compatible with the 72960.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the 72959 and 72960 are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the practical difference between solder and crimp termination?

A: Solder termination (72959) requires thermal attachment to cable conductors using solder. Crimp termination (72960) uses mechanical compression to secure cable conductors. Selection depends on assembly process capability and application requirements. Both methods achieve equivalent electrical performance when properly executed.