Molex 0545501671 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0545501671 is a 16-position FFC/FPC connector with 0.5mm pitch, designed for surface mount right-angle applications. This connector features zero insertion force (ZIF) operation, slide lock mechanism, and solder termination. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design updates. Substitute parts must maintain electrical compatibility, mechanical fit, and performance characteristics within the specified operating parameters.

Substiute Parts

0545501671

MolexIn Stock: 8330545501671 Datasheet

Current PartRFQ

0545501672

MolexIn Stock: 130470545501672 Datasheet

MFR RecommendedRFQ

FH34SRJ-16S-0.5SH(50)

Hirose Electric Co LtdIn Stock: 4336FH34SRJ-16S-0.5SH(50) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0545501671 are qualified based on the following critical parameters:

• Electrical Compatibility: 16 positions, 0.5mm pitch, 50V voltage rating, 0.5A current rating
• Mechanical Compatibility: Surface mount right-angle orientation, 0.30mm FFC/FCB thickness, solder termination
• Environmental Compliance: ROHS3 compliance, UL94 V-0 flammability rating, operating temperature range support
• Functional Features: Zero insertion force (ZIF) operation, locking mechanism

Two substitute parts meet these criteria:

1. Molex 0545501672 - Direct manufacturer variant with identical electrical and mechanical specifications, differing only in packaging format and extended operating temperature range
2. Hirose FH34SRJ-16S-0.5SH(50) - Cross-manufacturer equivalent with identical core electrical parameters, featuring alternative locking mechanism and extended temperature range

Parameter Comparison

Engineering Selection Recommendations

Molex 0545501672 is the primary substitute for the obsolete Molex 0545501671. Both parts are from the same manufacturer's Easy-On 54550 series and share identical electrical and mechanical specifications. The 0545501672 is currently in active production with significantly higher inventory availability (12,979 pcs vs. 761 pcs). The extended operating temperature range (-40°C to 85°C vs. -20°C to 85°C) provides additional environmental margin. This part requires no design modification and maintains full compatibility with existing PCB layouts and cable assemblies.

Hirose FH34SRJ-16S-0.5SH(50) serves as a cross-manufacturer alternative when Molex supply is constrained. This part maintains all critical electrical parameters and mechanical pitch specifications. Key differences include: top and bottom contact configuration (vs. top only), rotary lock mechanism (vs. slide lock), reduced height above board (1.00mm vs. 1.20mm), and extended operating temperature range (-55°C to 105°C). The Hirose part is halogen-free and offers superior environmental performance. PCB layout modifications may be required to accommodate the reduced height and alternative locking mechanism.

Both substitute parts carry ROHS3 compliance and UL94 V-0 flammability certification, meeting regulatory requirements equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0545501672 be used as a direct replacement for the 0545501671?

A: Yes. Both parts are electrically and mechanically identical within the specified operating parameters. The 0545501672 is the recommended substitute and requires no design changes. The primary difference is product status (active vs. obsolete) and packaging format.

Q: What are the key differences between the Molex 0545501672 and Hirose FH34SRJ-16S-0.5SH(50)?

A: The primary differences are: manufacturer, locking mechanism (slide lock vs. rotary lock with backlock), contact configuration (top only vs. top and bottom), height above board (1.20mm vs. 1.00mm), and operating temperature range (-20°C to 85°C vs. -55°C to 105°C). All electrical parameters and pitch specifications are identical.

Q: Does the reduced height of the Hirose connector affect PCB compatibility?

A: The Hirose FH34SRJ-16S-0.5SH(50) has a height of 1.00mm compared to 1.20mm for the Molex parts. This 0.20mm reduction may require PCB layout verification to ensure clearance with adjacent components. The alternative locking mechanism also requires mechanical space assessment.

Q: Are both substitute parts available in the same packaging formats?

A: The Molex 0545501672 is available in Tape & Reel (TR) packaging. The Hirose FH34SRJ-16S-0.5SH(50) is also available in Tape & Reel (TR) packaging. Verify packaging requirements with your procurement specifications.

Q: What is the impact of the different locking mechanisms on assembly and reliability?

A: The Molex 0545501671 and 0545501672 use slide lock mechanisms. The Hirose FH34SRJ-16S-0.5SH(50) uses rotary lock with backlock. Both mechanisms provide equivalent mating cycle ratings (20 cycles) and zero insertion force operation. Assembly procedures and cable insertion techniques differ between mechanisms and should be verified with connector documentation.

Q: Are there any compliance or certification differences between the substitute parts?

A: All three parts are ROHS3 compliant and carry UL94 V-0 flammability ratings. The Hirose part is additionally specified as halogen-free. All parts are REACH unaffected and carry EAR99 ECCN classification.