Amphenol RF 908-21102 MMCX Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 908-21102 is an MMCX connector plug designed for board edge mounting applications requiring 50 Ohm impedance coaxial connectivity. This surface mount solder connector operates at frequencies up to 6 GHz and features a male pin configuration with snap-on fastening. The part is currently in active production status with 662 units in stock inventory.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory depletion, or when design requirements permit equivalent alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

908-21102

Amphenol RFIn Stock: 717908-21102 Datasheet

Current PartRFQ

1408120-1

TE Connectivity AMP ConnectorsIn Stock: 11461408120-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of coaxial RF connectors is determined by strict equivalence across electrical and mechanical parameters. The following criteria establish valid substitution for the Amphenol RF 908-21102:

Electrical Parameters:

• Impedance: 50 Ohms (exact match required)
• Frequency maximum: 6 GHz or greater
• Connector style: MMCX (exact match required)
• Connector type: Plug, Male Pin (exact match required)
• Number of ports: 1 (exact match required)

Mechanical Parameters:

• Mounting type: Board Edge, Cutout; Surface Mount (exact match required)
• Contact termination: Solder (exact match required)
• Shield termination: Solder (exact match required)
• Fastening type: Snap-On (exact match required)
• Mating cycles: 500 or greater

Material & Environmental Parameters:

• Center contact material: Brass
• Body material: Brass
• Dielectric material: PTFE
• RoHS3 Compliance (required)
• REACH Affected status (required)

The TE Connectivity AMP Connectors part number 1408120-1 meets all specified electrical, mechanical, and material requirements for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The Amphenol RF 908-21102 is the preferred selection for new designs and production applications. This part maintains active product status with established supply chain availability (662 units in stock) and ongoing manufacturer support.

Substitute Part Selection: The TE Connectivity AMP Connectors 1408120-1 is a parametric equivalent suitable for applications where the primary part is unavailable. This part satisfies all electrical, mechanical, and compliance requirements. However, the obsolete product status indicates limited future availability and potential supply constraints. Selection of this substitute should be accompanied by inventory planning and consideration of long-term supply chain implications.

Compliance Considerations: Both parts maintain ROHS3 compliance and REACH Affected status, ensuring regulatory alignment for applications subject to these requirements. Material composition, impedance characteristics, and operating frequency ranges are identical across both parts.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1408120-1 be used as a direct replacement for the Amphenol RF 908-21102?

A: Yes. The TE Connectivity 1408120-1 meets all specified electrical parameters (50 Ohm impedance, 6 GHz maximum frequency, MMCX Plug Male Pin configuration), mechanical parameters (board edge surface mount solder termination, snap-on fastening), and material specifications (brass body with PTFE dielectric, gold plating). Both parts are ROHS3 compliant and REACH Affected.

Q: What is the significance of the obsolete product status for the TE Connectivity part?

A: Obsolete status indicates the manufacturer has discontinued active production and support for part number 1408120-1. While the part remains electrically and mechanically equivalent, future availability cannot be guaranteed. Designs utilizing this substitute should incorporate contingency planning for supply continuity.

Q: Are there any packaging differences between these parts?

A: The Amphenol RF 908-21102 packaging specification is not provided in the technical data. The TE Connectivity 1408120-1 is supplied in bulk packaging. Packaging differences do not affect electrical or mechanical compatibility.

Q: What are the critical parameters for MMCX connector substitution?

A: Critical substitution parameters include connector style (MMCX), connector type (Plug, Male Pin), impedance (50 Ohms), mounting configuration (board edge cutout surface mount), termination method (solder contact and shield), and frequency rating (6 GHz minimum). Deviation in any of these parameters disqualifies a part as a direct substitute.

Q: Do both parts support the same mating cycle rating?

A: Yes. Both the Amphenol RF 908-21102 and TE Connectivity 1408120-1 are rated for 500 mating cycles, ensuring equivalent mechanical durability and connector lifespan.

Q: Are there operating temperature differences between these parts?

A: The Amphenol RF 908-21102 operating temperature specification is not provided. The TE Connectivity 1408120-1 operates across the range of -55°C to 155°C. This specification difference does not affect substitution validity when the primary part's operating temperature requirements fall within this range.