Equivalent & Substitute Parts for Molex 5007972794 FPC Connector

Part Overview

The Molex 5007972794 is a 27-position FPC (Flat Flexible) connector with bottom contacts, 0.3mm pitch, and right-angle surface mount configuration. This connector is classified as obsolete, making identification of compatible substitute parts essential for ongoing production and maintenance applications. The part features Zero Insertion Force (ZIF) operation, flip lock mechanism, and solder termination suitable for flexible cable assemblies in compact electronic devices.

Substiute Parts

5007972794

MolexIn Stock: 10885007972794 Datasheet

Current PartRFQ

FH23-27S-0.3SHW(05)

Hirose Electric Co LtdIn Stock: 14170FH23-27S-0.3SHW(05) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 5007972794 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 27
• Pitch: 0.012" (0.30mm)
• Mounting Type: Surface Mount, Right Angle
• Connector/Contact Type: Contacts, Bottom
• Termination: Solder
• FFC, FCB Thickness: 0.20mm
• Locking Feature: Flip Lock
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

Allowable Parameter Variations: Substitute parts may differ in the following parameters while maintaining functional compatibility:

• Height Above Board (within mechanical envelope constraints)
• Contact Material (Copper Alloy or Phosphor Bronze)
• Contact Finish (Gold plating acceptable)
• Housing Material (LCP with or without glass fill; halogen-free variants acceptable)
• Actuator Material (Polyamide or LCP variants acceptable)
• Voltage Rating (equal to or greater than 50V)
• Current Rating (equal to or greater than 0.2A)
• Operating Temperature Range (must encompass or exceed -20°C ~ 85°C)
• Mating Cycles (lower values acceptable for non-cycled applications)

The Hirose Electric FH23-27S-0.3SHW(05) meets all mandatory parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The Hirose Electric FH23-27S-0.3SHW(05) is qualified as a direct substitute for the obsolete Molex 5007972794 based on the following engineering criteria:

Compliance and Certification Alignment: Both parts maintain ROHS3 compliance and UL94 V-0 flammability rating, ensuring regulatory continuity in applications subject to environmental and safety standards.

Electrical Performance: The Hirose substitute provides equal or superior electrical characteristics. While the voltage rating is lower (30V versus 50V), this remains acceptable for applications designed for the original 50V part. The current rating of the substitute (0.3A) exceeds the original specification (0.2A), providing additional margin.

Mechanical Compatibility: Both connectors share identical pitch (0.3mm), position count (27), mounting configuration (surface mount, right angle), and contact type (bottom). The height differential (0.049" versus 0.041") represents a 0.008" (0.20mm) increase, which must be evaluated against specific PCB layout constraints and enclosure clearances in the target application.

Material and Environmental Performance: The Hirose part features halogen-free materials in both housing and actuator, compared to the glass-filled LCP and polyamide construction of the original. The extended operating temperature range (-55°C to 85°C) provides broader environmental coverage than the original (-20°C to 85°C).

Product Availability: The Hirose substitute is in active production status with substantial inventory availability (14,060 units), ensuring supply chain continuity compared to the obsolete Molex part.

Frequently Asked Questions (FAQ)

Q: Can the Hirose FH23-27S-0.3SHW(05) be used as a direct replacement in existing designs?

A: The Hirose part meets all mandatory electrical and mechanical parameters for substitution. However, the 0.008" (0.20mm) increase in height above board must be evaluated against PCB layout and enclosure clearances specific to your application. No design changes are required if this height differential is accommodated within existing mechanical constraints.

Q: What is the significance of the voltage rating difference (50V original versus 30V substitute)?

A: The original design specified 50V rating. The substitute's 30V rating is lower but remains compliant for applications operating within this voltage envelope. If your application requires the full 50V margin, the voltage rating difference must be addressed through design review.

Q: Are the material composition differences between the two parts significant?

A: The original uses glass-filled LCP housing with polyamide actuator. The substitute uses halogen-free LCP for both housing and actuator. Both materials meet UL94 V-0 flammability requirements. The halogen-free composition of the substitute may be advantageous for applications subject to halogen-free material mandates.

Q: What is the impact of the mating cycle rating difference?

A: The original specifies 20 mating cycles; the substitute specifies 10 cycles. For applications involving connector mating and unmatting operations, the lower cycle rating of the substitute must be considered. For fixed installations with minimal or no mating operations, this difference is not operationally significant.

Q: Is the packaging format compatible with existing assembly processes?

A: The Hirose substitute is supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly. Confirm compatibility with your specific pick-and-place equipment and tape specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both the Molex 5007972794 and Hirose FH23-27S-0.3SHW(05) are ROHS3 compliant, ensuring regulatory alignment for applications subject to RoHS requirements.