75853-402LF Equivalent & Substitute Parts

Part Overview

The 75853-402LF is a 21-position DIN connector receptacle with female sockets, manufactured by Amphenol ICC (FCI). This component is classified as a backplane connector designed for free-hanging (in-line) applications with IDC termination. The part is currently obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs requiring compatible interconnect solutions.

Substiute Parts

75853-402LF

Amphenol ICC (FCI)In Stock: 109175853-402LF Datasheet

Current PartRFQ

BPS8B21FLD000L9LF

Amphenol ICC (FCI)In Stock: 1246BPS8B21FLD000L9LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 75853-402LF is determined by strict equivalence across the following critical parameters:

• Connector Configuration: 21-position receptacle with female sockets
• Pitch and Geometry: 0.100" (2.54mm) pitch, 3-row arrangement
• Mounting and Termination: Free-hanging (in-line) configuration with IDC termination
• Electrical Performance: 1.5A current rating and gold contact finish
• Environmental Compliance: UL94 V-0 flammability rating and MSL 1 classification
• Manufacturer Consistency: Amphenol ICC (FCI) product family

The substitute part BPS8B21FLD000L9LF meets all these criteria while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The BPS8B21FLD000L9LF is the designated manufacturer substitute for the obsolete 75853-402LF. Both components share identical mechanical and electrical specifications across all critical parameters: 21-position configuration, 0.100" pitch, 3-row arrangement, free-hanging mounting, IDC termination, 1.5A current rating, and UL94 V-0 flammability compliance.

The substitute part offers the following advantages:

• Active Product Status: Currently manufactured and supported by Amphenol ICC (FCI), ensuring long-term availability and supply chain continuity
• Enhanced Compliance: RoHS compliant, meeting modern regulatory requirements for new designs and manufacturing processes
• Insulation Material Upgrade: Polyester Thermoplastic, Glass Filled insulation provides improved material properties compared to the original Polyester, Glass Filled formulation
• Packaging: Supplied in Tray packaging, facilitating automated assembly and handling

The operating temperature range of the substitute part (-40°C ~ 125°C) is narrower at the lower end compared to the main part (-55°C ~ 125°C). Applications requiring operation below -40°C must evaluate this specification difference against system requirements.

Frequently Asked Questions (FAQ)

Q: Can BPS8B21FLD000L9LF be used as a direct replacement for 75853-402LF?

A: Yes. Both parts are 21-position DIN receptacles with identical pitch (0.100"), row configuration (3), mounting type (free-hanging in-line), termination method (IDC), contact finish (gold), current rating (1.5A), and flammability rating (UL94 V-0). The substitute is the manufacturer-designated equivalent.

Q: What is the difference in operating temperature range?

A: The 75853-402LF operates from -55°C to 125°C, while the BPS8B21FLD000L9LF operates from -40°C to 125°C. The substitute part has a higher minimum operating temperature by 15°C. Verify that your application does not require operation below -40°C before selecting the substitute.

Q: Are there packaging differences between these parts?

A: The 75853-402LF packaging is not specified in available documentation. The BPS8B21FLD000L9LF is supplied in Tray packaging. Confirm packaging requirements for your procurement and assembly processes.

Q: Does the substitute part meet RoHS compliance?

A: Yes. The BPS8B21FLD000L9LF is RoHS compliant, whereas the original part's RoHS status is not specified. This makes the substitute suitable for applications and markets requiring RoHS certification.

Q: What is the difference in insulation material?

A: The 75853-402LF uses Polyester, Glass Filled insulation. The BPS8B21FLD000L9LF uses Polyester Thermoplastic, Glass Filled insulation. Both materials meet UL94 V-0 flammability requirements. The thermoplastic formulation in the substitute may offer improved processing characteristics during manufacturing.

Q: Are these parts interchangeable in existing designs?

A: Mechanical and electrical interchangeability is confirmed across all specified parameters. Verify that the -40°C minimum operating temperature of the substitute meets your application requirements. No design modifications are necessary for substitution.