FDI14-250C Equivalent & Substitute Parts

Part Overview

The FDI14-250C is a 0.250" (6.35mm) Quick Connect Female 14-16 AWG Crimp Connector with full insulation, manufactured by 3M under the Highland™ series. This component is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The part features a butted seam construction with brass contacts and tin finish, designed for free-hanging in-line mounting applications.

Substiute Parts

FDI14-250C

3MIn Stock: 901FDI14-250C Datasheet

Current PartRFQ

94820

3MIn Stock: 980694820 Datasheet

DirectRFQ

3-350820-2

TE Connectivity AMP ConnectorsIn Stock: 4541843-350820-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FDI14-250C is determined by strict alignment of the following critical parameters: tab width (0.250"), tab thickness (0.032"), wire gauge (14-16 AWG), termination method (crimp), insulation classification (fully insulated), gender (female), contact material (brass), contact finish (tin), and mounting configuration (free hanging in-line). Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using FDI14-250C, the 94820 (3M, Highland™ series) provides direct substitution with identical mechanical and electrical parameters and active product status. This part maintains the same overall length and insulation diameter, ensuring compatibility with existing connector housings and wire configurations.

The 3-350820-2 (TE Connectivity AMP Connectors, Ultra-Fast series) is functionally equivalent across all critical electrical and mechanical parameters. Minor dimensional variations exist: overall length is 0.015" (0.38mm) shorter and insulation diameter is 0.015" (0.38mm) larger. Both substitute parts carry active product status and RoHS compliance certification, supporting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can 94820 be used as a direct replacement for FDI14-250C? A: Yes. The 94820 maintains identical tab width, tab thickness, wire gauge, termination method, insulation type, contact material, contact finish, and mounting configuration. Overall length and insulation diameter are also identical.

Q: What are the dimensional differences between FDI14-250C and 3-350820-2? A: The 3-350820-2 has an overall length of 0.855" compared to 0.870" for the FDI14-250C (0.015" shorter). The insulation diameter is 0.160" versus 0.145" (0.015" larger). These variations may affect fit in existing connector housings and should be evaluated for specific applications.

Q: Are both substitute parts RoHS compliant? A: Yes. The 94820 and 3-350820-2 are both RoHS Compliant. The original FDI14-250C RoHS status is not specified in available documentation.

Q: What is the difference between Highland™ and Ultra-Fast series connectors? A: Both series use identical electrical and mechanical specifications for this 0.250" quick connect terminal. The series designation reflects manufacturer product line organization but does not affect functional compatibility for this component category.

Q: Which substitute part should be selected for new designs? A: Both 94820 and 3-350820-2 are active products suitable for new designs. Selection should be based on connector housing compatibility, considering the dimensional variations noted in the parameter comparison table, and supplier availability.