63453-040LF Equivalent & Substitute Parts

Part Overview

The 63453-040LF is a 40-position receptacle connector manufactured by Amphenol ICC (FCI) in the Minitek® 2.00mm series. This board-to-board rectangular connector features 0.079" (2.00mm) pitch, through-hole solder termination, and gold-plated mating contacts. The connector is actively produced and widely stocked (835 pcs available), making it suitable for general purpose, industrial, and medical applications requiring reliable interconnection at standard voltage and current ratings.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative sourcing reduces lead times or cost, or when design flexibility requires connector options from different manufacturers while maintaining electrical and mechanical compatibility.

Substiute Parts

63453-040LF

Amphenol ICC (FCI)In Stock: 86363453-040LF Datasheet

Current PartRFQ

0791077019

MolexIn Stock: 108660791077019 Datasheet

MFR RecommendedRFQ

M22-7142042

Harwin Inc.In Stock: 925M22-7142042 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 63453-040LF is determined by strict alignment with the following core parameters:

Critical Matching Parameters (Non-Negotiable):

• Connector type: Receptacle
• Number of positions: 40
• Pitch - mating: 0.079" (2.00mm)
• Number of rows: 2
• Row spacing - mating: 0.079" (2.00mm)
• Mounting type: Through hole
• Termination: Solder
• Contact finish - mating: Gold
• Fastening type: Push-pull

Allowable Variation Parameters:

• Insulation height: ±0.004" tolerance acceptable
• Contact length - post: Variation acceptable if PCB stack-up accommodates
• Operating temperature: Minimum range must cover -55°C to 125°C or be suitable for intended application
• Current rating: Equal or greater than 2A acceptable
• Voltage rating: Equal or greater than 200V acceptable
• Insulation material: Different materials acceptable if flammability and mechanical properties are maintained
• Contact finish thickness: Variation acceptable within industry standards
• Compliance certifications: RoHS3 or RoHS Compliant both acceptable

The two substitute parts listed below meet all critical matching parameters and fall within allowable variation ranges.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 63453-040LF (Amphenol ICC)

Use as first choice when available. Meets all specified electrical and mechanical requirements. RoHS Compliant status confirmed. UL94 V-0 flammability rating suitable for industrial and medical applications. Operating temperature range -55°C to 125°C covers extended temperature environments.

Substitute Option 1: 0791077019 (Molex)

Electrically compatible for applications where current requirement does not exceed 1A and voltage does not exceed 125V. Insulation height and contact post length fall within acceptable mechanical tolerance. ROHS3 Compliant status meets regulatory requirements. Higher inventory availability (10776 pcs) provides supply chain advantage. Suitable for general purpose and telecommunications applications where reduced current and voltage ratings are acceptable.

Substitute Option 2: M22-7142042 (Harwin)

Electrically superior with 2A current rating and 500VAC voltage rating, exceeding primary part specifications. UL94 V-0 flammability rating matches primary part. ROHS3 Compliant. Liquid Crystal Polymer insulation material provides enhanced mechanical and thermal properties. Operating temperature range -40°C to 105°C is narrower than primary part; suitable for applications not requiring -55°C minimum. Mated stacking height options (5.8mm, 6.55mm, 6.8mm) provide design flexibility for multi-connector stacking applications.

Frequently Asked Questions (FAQ)

Q: Can 0791077019 (Molex) be used as a direct replacement for 63453-040LF?

A: 0791077019 is mechanically and physically compatible as a substitute. However, the 1A current rating and 125V voltage rating are lower than the primary part's 2A and 200V ratings. Use this substitute only in applications where actual current draw does not exceed 1A and operating voltage does not exceed 125V.

Q: What are the key differences between M22-7142042 and the primary part?

A: M22-7142042 shares identical mating pitch, row configuration, and connector type. Differences include: narrower operating temperature range (-40°C to 105°C versus -55°C to 125°C), higher voltage rating (500VAC versus 200V), and different insulation material (LCP versus PCT). Contact post length is 0.094" versus 0.098", requiring verification of PCB stack-up compatibility.

Q: Are all three connectors compatible with the same mating connector?

A: All three receptacle connectors share identical mating pitch (0.079"), row spacing (0.079"), and 40-position configuration. They are mechanically compatible with the same plug connector. Electrical compatibility depends on the plug connector's current and voltage ratings.

Q: Which substitute offers the best supply chain availability?

A: Molex 0791077019 has the highest inventory (10776 pcs) compared to Amphenol ICC 63453-040LF (835 pcs) and Harwin M22-7142042 (900 pcs). However, availability should be verified with current distributor stock levels.

Q: Can M22-7142042 be used in medical applications like the primary part?

A: M22-7142042 is listed for general purpose, industrial, and telecommunications applications. The primary part 63453-040LF is explicitly listed for medical applications. Verify that M22-7142042 meets specific medical device requirements and certifications required by your application before substitution.

Q: What is the impact of different insulation heights on PCB design?

A: Insulation heights vary: 63453-040LF (4.50mm), 0791077019 (4.45mm), and M22-7142042 (4.40mm). These differences of 0.05mm to 0.10mm are within typical PCB tolerance and should not affect standard board layouts. Verify clearance if connectors are mounted in confined spaces or near adjacent components.

Q: Are there temperature limitations when substituting with M22-7142042?

A: M22-7142042 operates from -40°C to 105°C, which is narrower than the primary part's -55°C to 125°C range. This substitute is unsuitable for applications requiring operation below -40°C or above 105°C. Confirm your application's temperature requirements before selection.