MDF12A-1822PCF Equivalent & Substitute Parts

Part Overview

The MDF12A-1822PCF is a crimp contact terminal manufactured by Hirose Electric Co Ltd, designed for through-board, locking applications with 18-22 AWG wire gauge compatibility. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The part features tin-plated brass contacts with RoHS compliance and unlimited moisture sensitivity rating, suitable for applications requiring reliable electrical connections in standard environmental conditions.

Substiute Parts

MDF12A-1822PCF

Hirose Electric Co LtdIn Stock: 702MDF12A-1822PCF Datasheet

Current PartRFQ

3-640311-1

TE Connectivity AMP ConnectorsIn Stock: 324503-640311-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDF12A-1822PCF is determined by strict alignment of the following critical parameters:

• Wire Gauge Compatibility: 18-22 AWG (exact match required)
• Terminal Type: Through Board, Locking configuration
• Contact Finish: Tin plating
• Insulation Diameter Range: Overlap within 0.083" ~ 0.114" (2.11mm ~ 2.90mm)
• RoHS Compliance: Required for regulatory equivalence
• Moisture Sensitivity Level: MSL 1 (Unlimited) or equivalent

The substitute part 3-640311-1 from TE Connectivity AMP Connectors meets these criteria with compatible wire gauge, terminal type, tin finish, and RoHS compliance. The insulation diameter range of 0.060" ~ 0.110" (1.52mm ~ 2.79mm) provides functional overlap with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The 3-640311-1 terminal from TE Connectivity AMP Connectors is the designated manufacturer-recommended substitute for the obsolete MDF12A-1822PCF. Both components maintain identical wire gauge specifications (18-22 AWG), terminal type (through board, locking), contact finish (tin), and regulatory compliance (RoHS compliant, MSL 1). The substitute part is currently in active production with substantial inventory availability (32,400 pieces), ensuring supply chain continuity.

The primary material difference—phosphor bronze contacts in the substitute versus brass in the original—does not affect functional compatibility within the specified electrical and mechanical parameters. Both materials provide equivalent performance for crimp contact applications in this wire gauge range.

Frequently Asked Questions (FAQ)

Q: Can the 3-640311-1 be used as a direct replacement for MDF12A-1822PCF?

A: Yes. Both parts meet the critical substitution criteria: identical 18-22 AWG wire gauge, through-board locking terminal type, tin contact finish, and RoHS compliance. The insulation diameter ranges overlap within functional tolerance.

Q: What is the significance of the contact material difference (brass vs. phosphor bronze)?

A: Both materials are standard for crimp contact applications in this wire gauge category. The material difference does not affect electrical performance or mechanical compatibility for the specified application parameters.

Q: Why is the MDF12A-1822PCF classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Hirose Electric Co Ltd. The 3-640311-1 substitute provides functional equivalence with active production status and established supply availability.

Q: Are there packaging differences between these parts?

A: The MDF12A-1822PCF packaging is not specified in the available data. The 3-640311-1 is supplied in Cut Tape (CT) packaging, which is standard for terminal components in production environments.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are RoHS compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and share identical ECCN (EAR99) and HTSUS (8536.90.4000) classifications.