PRF18-P-C-EE-405-SD 1.85mm Coaxial Connector Equivalent & Substitute Parts

Part Overview

The PRF18-P-C-EE-405-SD is a 1.85mm coaxial connector plug manufactured by Samtec Inc., designed for RF applications requiring 50 Ohm impedance matching. This male pin connector features solder termination for both center contact and shield, with free hanging (in-line) mounting configuration. The connector is rated for operation up to 65 GHz and is compatible with RG-405 semi-rigid cable (.085" diameter). The part maintains Active product status and is ROHS3 compliant, making it suitable for current production applications.

Equivalent substitute parts are identified based on identical electrical and mechanical specifications, ensuring direct functional interchangeability without design modification.

Substiute Parts

PRF18-P-C-EE-405-SD

Samtec Inc.In Stock: 730PRF18-P-C-EE-405-SD Datasheet

Current PartRFQ

PRF18-P-C-EE-085-SD

Samtec Inc.In Stock: 981PRF18-P-C-EE-085-SD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PRF18-P-C-EE-405-SD are identified through strict parametric matching across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that determine functional equivalence:

Electrical Parameters:

• Connector style (1.85mm)
• Impedance (50 Ohms)
• Maximum frequency rating (65 GHz)
• Dielectric material (PTFE)

Mechanical Parameters:

• Connector type (Plug, Male Pin)
• Contact termination method (Solder)
• Shield termination method (Solder)
• Mounting configuration (Free Hanging In-Line)
• Cable compatibility (RG-405 .085" Semi Rigid)
• Fastening type (Threaded)

Material Specifications:

• Center contact material (Beryllium Copper)
• Body material (Stainless Steel)
• Contact plating (Gold)

Compliance:

• RoHS3 compliance status
• Product status (Active)

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. Variations in packaging format do not affect electrical or mechanical performance and do not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

The PRF18-P-C-EE-085-SD is a direct parametric equivalent to the PRF18-P-C-EE-405-SD. Both parts are manufactured by Samtec Inc. within the PRF series and maintain identical electrical, mechanical, and material specifications across all critical parameters.

Selection Basis:

Both parts carry Active product status, indicating current manufacturing support and availability. Both maintain ROHS3 compliance, satisfying environmental and regulatory requirements for current production applications. The identical impedance rating (50 Ohms), frequency capability (65 GHz), and cable compatibility (RG-405 .085" semi-rigid) ensure functional interchangeability in RF circuit applications.

Material composition, contact plating, and termination methods are identical between both parts, eliminating any performance differential in solder joint reliability or signal integrity.

Inventory availability differs between the two parts (PRF18-P-C-EE-405-SD: 655 units; PRF18-P-C-EE-085-SD: 884 units), which may influence procurement decisions based on supply requirements.

Frequently Asked Questions (FAQ)

Q: Are PRF18-P-C-EE-405-SD and PRF18-P-C-EE-085-SD electrically identical?

A: Yes. Both connectors operate at 50 Ohms impedance, support frequencies up to 65 GHz, and use identical dielectric material (PTFE). Electrical performance is equivalent.

Q: Can these connectors be used interchangeably in RF circuit designs?

A: Yes. Both parts are 1.85mm male pin plugs with solder termination, free hanging mounting, and RG-405 cable compatibility. They are direct functional substitutes.

Q: What is the difference between these two part numbers?

A: The part numbers differ, but all electrical and mechanical specifications are identical. Both are manufactured by Samtec Inc. within the PRF series and maintain the same performance characteristics.

Q: Are both parts ROHS3 compliant?

A: Yes. Both PRF18-P-C-EE-405-SD and PRF18-P-C-EE-085-SD are ROHS3 compliant, meeting environmental and regulatory requirements.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection may be based on inventory availability, procurement lead time, or existing supply chain relationships. Both maintain Active product status.

Q: Do these connectors require any special handling or installation procedures?

A: Both connectors use solder termination for center contact and shield. Standard RF connector soldering practices apply. Cable compatibility is limited to RG-405 (.085" semi-rigid) specification.

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

A: Both connectors are rated for operation up to 65 GHz, suitable for high-frequency RF and microwave applications.

Q: Are the contact materials the same in both parts?

A: Yes. Both use beryllium copper center contacts with gold plating and stainless steel bodies, ensuring identical electrical and mechanical performance.