RFSMAA2JDFDQ SMA Coaxial Connector Equivalent & Substitute Parts

Part Overview

The RFSMAA2JDFDQ is an SMA connector jack manufactured by Bulgin, designed as a female socket for 50 Ohm RF applications. This panel mount, through-hole solder connector operates across frequencies up to 26.5 GHz and is suitable for high-frequency coaxial transmission systems. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to address inventory availability, specific mounting hole configurations, or equivalent electrical performance requirements in RF circuit designs.

Substiute Parts

RFSMAA2JDFDQ

BulginIn Stock: 1038RFSMAA2JDFDQ Datasheet

Current PartRFQ

RFSMAA2JEGDQ

BulginIn Stock: 871RFSMAA2JEGDQ Datasheet

Parametric EquivalentRFQ

RFSMAA4JCCDQ

BulginIn Stock: 792RFSMAA4JCCDQ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of coaxial connectors in the SMA category is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Parameters:

• Connector style (SMA)
• Connector type (Jack, Female Socket)
• Impedance (50 Ohms)
• Maximum frequency (26.5 GHz)
• Voltage rating (335 V)
• Operating temperature range (-65°C ~ 165°C)

Mechanical Compatibility Parameters:

• Mounting type (Panel Mount, Through Hole)
• Mounting feature (Flange)
• Contact termination (Solder)
• Shield termination (Solder)
• Fastening type (Threaded)

Material and Compliance Parameters:

• Center contact material (Beryllium Copper)
• Body material (Stainless Steel)
• Dielectric material (Polyetherimide)
• RoHS status (ROHS3 Compliant)
• Moisture sensitivity level (1 - Unlimited)

The identified substitutes maintain identical electrical specifications and core mechanical characteristics. Variations exist only in mounting hole configuration (2-hole versus 4-hole flange design), which represents a mechanical accommodation difference rather than an electrical incompatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RFSMAA2JDFDQ, RFSMAA2JEGDQ, and RFSMAA4JCCDQ—are Active status products with ROHS3 compliance and identical electrical performance specifications. Selection between these parts is determined by panel mounting hole requirements:

RFSMAA2JDFDQ and RFSMAA2JEGDQ are direct electrical and mechanical equivalents, both featuring 2-hole flange mounting configurations. These parts are interchangeable for applications requiring two-point panel fastening.

RFSMAA4JCCDQ provides the same electrical performance and core mechanical characteristics but incorporates a 4-hole flange mounting design. This variant accommodates panel designs requiring four-point fastening for enhanced mechanical stability or specific PCB layout constraints.

Selection should be based on the panel mounting hole pattern specified in the application design. All parts maintain compliance with regulatory requirements and operate identically across the full frequency range, temperature range, and voltage specifications.

Frequently Asked Questions (FAQ)

Q: Can RFSMAA2JDFDQ be replaced with RFSMAA2JEGDQ?

A: Yes. Both parts are electrically and mechanically identical, featuring the same 2-hole flange mounting configuration, 50 Ohm impedance, 26.5 GHz frequency capability, and solder termination. They are direct substitutes.

Q: What is the difference between RFSMAA2JDFDQ and RFSMAA4JCCDQ?

A: The primary difference is the mounting hole configuration. RFSMAA2JDFDQ features a 2-hole flange, while RFSMAA4JCCDQ features a 4-hole flange. All electrical parameters, impedance, frequency response, and operating conditions are identical. Selection depends on the panel mounting hole pattern required by the application.

Q: Are these connectors suitable for high-frequency RF applications?

A: Yes. All three parts operate up to 26.5 GHz with 50 Ohm impedance, making them suitable for RF and microwave applications within this frequency range.

Q: What is the operating temperature range for these connectors?

A: All three parts operate across -65°C to 165°C, providing performance across industrial and extended temperature environments.

Q: Are these parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant, meeting environmental and regulatory requirements for restricted substance use.

Q: What mounting methods do these connectors support?

A: All three parts are panel mount, through-hole connectors with solder termination for both contact and shield. They feature threaded fastening and flange-based mounting.

Q: Can I use a 4-hole connector in place of a 2-hole connector?

A: Only if the panel design accommodates the 4-hole flange pattern. The 4-hole configuration (RFSMAA4JCCDQ) cannot be directly substituted into a 2-hole mounting pattern without panel modification.

Q: What materials are used in these connectors?

A: Center contacts are Beryllium Copper, the body is Stainless Steel, and the dielectric material is Polyetherimide (PEI). These materials provide durability and RF performance across the operating temperature range.