Amphenol RF 908-43500 MMCX Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 908-43500 is an MMCX connector plug designed for RF coaxial applications requiring 50-ohm impedance. This component functions as a male pin connector with right-angle solder termination for free-hanging inline mounting. The part is currently active in production status with 954 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit component flexibility within specified electrical and mechanical parameters.

Substiute Parts

908-43500

Amphenol RFIn Stock: 1059908-43500 Datasheet

Current PartRFQ

135-3404-101

Cinch Connectivity Solutions JohnsonIn Stock: 2775135-3404-101 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Amphenol RF 908-43500 with the Cinch Connectivity Solutions Johnson 135-3404-101 is permissible based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Connector Style: MMCX
• Connector Type: Plug, Male Pin
• Impedance: 50 Ohms
• Contact Termination: Solder
• Shield Termination: Crimp
• Mounting Type: Free Hanging (In-Line), Right Angle
• Fastening Type: Snap-On
• Frequency - Max: 6 GHz
• Number of Ports: 1
• Dielectric Material: Polytetrafluoroethylene (PTFE)
• Body Material: Brass
• Body Finish: Gold
• Center Contact Plating: Gold
• Mating Cycles: 500
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Affected

Both parts satisfy the core functional requirements for MMCX RF coaxial connector applications with identical impedance, frequency rating, and termination specifications. The substitute part maintains compatibility with the specified cable groups and operating parameters within the defined electrical envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol RF 908-43500 and Cinch Connectivity Solutions Johnson 135-3404-101 are active production components with ROHS3 compliance and REACH affected status. Selection between these parts is determined by application-specific requirements and availability constraints.

The Amphenol RF 908-43500 operates across a wider temperature range (-65°C to 165°C) compared to the Cinch substitute (-55°C to 155°C). Applications requiring operation at temperatures below -55°C or above 155°C necessitate the Amphenol part.

The Cinch Connectivity Solutions Johnson 135-3404-101 specifies insertion loss at 0.2 dB and includes a voltage rating of 170 V. The Amphenol part does not provide these specifications in the available data.

Center contact material differs between parts: Amphenol uses brass while Cinch uses beryllium copper. Both materials are compatible with gold plating and PTFE dielectric specifications.

Both parts maintain identical electrical performance at 50 ohms impedance and 6 GHz maximum frequency, with equivalent mating cycle ratings of 500 cycles and MSL 1 classification.

Frequently Asked Questions (FAQ)

Q: Can the Cinch Connectivity Solutions Johnson 135-3404-101 directly replace the Amphenol RF 908-43500 in all applications?

A: Direct substitution is permissible when operating temperatures remain within the Cinch part range of -55°C to 155°C. Applications requiring operation below -55°C or above 155°C require the Amphenol part due to its extended temperature specification of -65°C to 165°C.

Q: What are the key electrical parameters that determine substitution compatibility?

A: The critical parameters are connector style (MMCX), connector type (Plug, Male Pin), impedance (50 Ohms), contact termination (Solder), shield termination (Crimp), and maximum frequency (6 GHz). Both parts match these specifications identically.

Q: Are there differences in mechanical compatibility?

A: Both parts share identical mounting specifications: free hanging inline right-angle configuration with snap-on fastening. Cable group compatibility differs slightly; verify cable specifications against the applicable cable group for each part.

Q: What is the significance of the center contact material difference?

A: The Amphenol part uses brass center contacts while the Cinch part uses beryllium copper. Both materials are gold-plated and compatible with PTFE dielectric. Material selection does not affect electrical performance within the specified 50-ohm impedance and 6 GHz frequency parameters.

Q: Do both parts meet current regulatory requirements?

A: Both parts are ROHS3 compliant and REACH affected. Both maintain MSL 1 (Unlimited) moisture sensitivity classification, indicating no special storage or handling requirements.

Q: What packaging considerations apply to these parts?

A: Both parts are supplied in bulk packaging. The Amphenol part includes 2 pieces per connector (connector and end cap). The Cinch part includes 3 pieces per connector (connector, end cap, and sleeve).

Q: How do the mating cycle ratings compare?

A: Both parts specify 500 mating cycles, indicating equivalent mechanical durability for connector engagement and disengagement operations.