Rosenberger 02K249-40ML5 Equivalent & Substitute Parts

Part Overview

The Rosenberger 02K249-40ML5 is a 2.92mm coaxial connector jack designed for RF applications requiring 50 ohm impedance. This surface mount component is configured as a female socket with board edge mounting and cutout features, suitable for end-launch applications in high-frequency circuits. The part is currently in active production with 1027 units available in new original stock condition.

Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when supply chain optimization is required, or when design flexibility allows for alternative qualified components that meet identical electrical and mechanical specifications.

Substiute Parts

02K249-40ML5

RosenbergerIn Stock: 106502K249-40ML5 Datasheet

Current PartRFQ

145-0701-811

Cinch Connectivity Solutions JohnsonIn Stock: 3339145-0701-811 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Rosenberger 02K249-40ML5 is determined by strict equivalence across the following critical parameters:

• Connector Geometry: 2.92mm connector style with jack, female socket configuration
• Electrical Specification: 50 ohm impedance maintained across the frequency range up to 40 GHz
• Mounting Configuration: Board edge mounting with cutout feature and surface mount solder termination
• Environmental Ratings: Operating temperature range of -40°C to 85°C and 250 V voltage rating
• Contact Materials and Finishes: Gold-plated beryllium copper center contact with brass body and gold finish

The Cinch Connectivity Solutions Johnson part 145-0701-811 meets all these criteria and qualifies as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the Rosenberger 02K249-40ML5 and Cinch Connectivity Solutions Johnson 145-0701-811 are active production components with full regulatory compliance. The Cinch part carries ROHS3 compliance and REACH affected status, matching the environmental and regulatory requirements of the primary part. Selection between these components may be based on supply availability, lead time, packaging format (Rosenberger supplied in standard packaging; Cinch supplied in bulk), or established supplier relationships, as both components are electrically and mechanically equivalent for 50 ohm RF applications up to 40 GHz.

Frequently Asked Questions (FAQ)

Q: What makes the Cinch 145-0701-811 a valid substitute for the Rosenberger 02K249-40ML5?

A: Both components share identical electrical specifications (50 ohm impedance, 40 GHz maximum frequency), mechanical configuration (2.92mm jack, female socket, board edge cutout mounting), contact materials (gold-plated beryllium copper), and environmental ratings (-40°C to 85°C operating temperature, 250 V voltage rating). They are parametric equivalents suitable for direct substitution in RF circuit applications.

Q: Are there packaging differences between these parts?

A: The Rosenberger 02K249-40ML5 is supplied in standard packaging, while the Cinch 145-0701-811 is supplied in bulk packaging. Both are surface mount solder termination components. Packaging format should be verified against assembly process requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant and REACH affected, meeting current environmental and regulatory requirements for electronic components in most markets.

Q: Can these connectors be used interchangeably in existing designs?

A: Yes, provided the design accommodates the bulk packaging format of the Cinch component. The electrical and mechanical specifications are identical, allowing direct substitution without circuit redesign.

Q: What is the maximum frequency rating for these connectors?

A: Both the Rosenberger 02K249-40ML5 and Cinch 145-0701-811 are rated for operation up to 40 GHz, suitable for millimeter-wave and high-frequency RF applications.