FKDFDDK Equivalent & Substitute Parts

Part Overview

The FKDFDDK is a dual-port SMB Fakra Code D coaxial connector manufactured by Taoglas Limited, designed for RF applications requiring 50-ohm impedance. This connector features female socket termination with crimp contact and shield termination, suitable for free-hanging in-line cable applications. The part is classified as an active product with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct component replacement in applications where port configuration or housing color variants are acceptable.

Substiute Parts

FKDFDDK

Taoglas LimitedIn Stock: 1012FKDFDDK Datasheet

Current PartRFQ

FK1FDDK

Taoglas LimitedIn Stock: 972FK1FDDK Datasheet

Parametric EquivalentRFQ

FK1FDG

Taoglas LimitedIn Stock: 1082FK1FDG Datasheet

Parametric EquivalentRFQ

FKDFDG

Taoglas LimitedIn Stock: 1151FKDFDG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FKDFDDK are identified based on strict parametric equivalence across critical electrical and mechanical specifications. The following parameters must remain constant for substitution validity:

Electrical Parameters:

• Connector style (SMB, Fakra)
• Connector type (Jack, Female Socket)
• Impedance (50 Ohms)
• Frequency maximum (6 GHz)
• Contact and shield termination method (Crimp)

Mechanical Parameters:

• Mounting type (Free Hanging In-Line)
• Cable group compatibility (RG-174, 316)
• Fastening type (Latch Lock)
• Operating temperature range (-40°C ~ 105°C)
• Mating cycles (25)

Compliance Parameters:

• RoHS status (ROHS3 Compliant)
• Moisture sensitivity level (1 - Unlimited)

Substitute parts may vary in the following non-critical parameters: number of ports, housing color, and base product number designation. All identified substitutes maintain identical electrical performance and mechanical interface compatibility with the original FKDFDDK specification.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts—FK1FDDK, FK1FDG, and FKDFDG—maintain full electrical and mechanical compatibility with the FKDFDDK specification. Selection among these alternatives is determined by application-specific requirements:

FKDFDDK (Original Part): Dual-port configuration with 963 units in stock. Suitable for applications requiring two integrated connection points in a single assembly.

FK1FDDK: Single-port variant with 881 units in stock. Applicable where single-port functionality is required or where dual-port redundancy is not necessary.

FK1FDG: Single-port variant with 975 units in stock. Functionally equivalent to FK1FDDK with higher inventory availability.

FKDFDG: Dual-port configuration with 1083 units in stock. Functionally equivalent to FKDFDDK with highest inventory availability.

All substitute parts carry identical ROHS3 compliance, unlimited moisture sensitivity rating, and active product status. Selection should prioritize port configuration alignment with circuit design requirements and inventory availability for procurement optimization.

Frequently Asked Questions (FAQ)

Q: Can FK1FDDK replace FKDFDDK in all applications?

A: FK1FDDK is electrically and mechanically equivalent to FKDFDDK across all critical parameters. The primary difference is port configuration: FK1FDDK provides single-port functionality while FKDFDDK provides dual-port functionality. Substitution is valid only in applications where single-port operation is acceptable.

Q: What is the difference between FK1FDG and FK1FDDK?

A: FK1FDG and FK1FDDK are parametrically identical. Both are single-port SMB Fakra Code D connectors with identical electrical specifications, mechanical interfaces, and compliance certifications. The difference is in base product number designation and inventory availability.

Q: Are FKDFDDK and FKDFDG interchangeable?

A: FKDFDDK and FKDFDG are functionally equivalent dual-port connectors with identical electrical and mechanical specifications. Both support 50-ohm impedance, 6 GHz maximum frequency, and crimp termination. Substitution is direct with no performance impact.

Q: Do all substitute parts support the same cable groups?

A: All substitute parts support RG-174 and RG-316 cable groups. Cable compatibility is identical across FKDFDDK, FK1FDDK, FK1FDG, and FKDFDG.

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

A: All substitute parts operate across the temperature range of -40°C to 105°C, matching the FKDFDDK specification.

Q: Are all substitute parts ROHS3 compliant?

A: All identified substitute parts carry ROHS3 compliance certification. Moisture sensitivity level is 1 (Unlimited) for all variants.

Q: How many mating cycles are supported?

A: All substitute parts support 25 mating cycles, consistent with the FKDFDDK specification.

Q: What is the fastening mechanism for these connectors?

A: All substitute parts utilize latch lock fastening, providing secure mechanical connection for free-hanging in-line applications.