Molex 0545501733 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0545501733 is a 17-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 product is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. Substitute parts must maintain compatibility with the original electrical specifications, mechanical mounting requirements, and environmental operating conditions.

Substiute Parts

0545501733

MolexIn Stock: 8990545501733 Datasheet

Current PartRFQ

0545501734

MolexIn Stock: 9200545501734 Datasheet

MFR RecommendedRFQ

FH34SRJ-18S-0.5SH(50)

Hirose Electric Co LtdIn Stock: 6713FH34SRJ-18S-0.5SH(50) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Molex 0545501733 is determined by the following critical parameters:

• Pitch (0.5mm): All substitute parts must maintain 0.5mm pitch for cable compatibility
• Mounting Type (Surface Mount, Right Angle): Substitute parts must support right-angle surface mount orientation
• Voltage and Current Ratings (50V, 0.5A): Electrical specifications must meet or exceed these values
• Termination (Solder): Substitute parts must use solder termination for PCB attachment
• FFC/FCB Thickness (0.30mm): Cable thickness compatibility is required
• Compliance (ROHS3, UL94 V-0): Regulatory and safety certifications must be maintained

Two substitute parts are identified:

1. Molex 0545501734: Direct equivalent with identical pitch, mounting, and electrical specifications. Maintains the same series and base product number with active product status.

2. Hirose FH34SRJ-18S-0.5SH(50): Cross-manufacturer substitute with compatible pitch, mounting type, and electrical ratings. Differs in position count (18 vs. 17) and contact configuration (top and bottom vs. top only).

Parameter Comparison

Engineering Selection Recommendations

Molex 0545501734 is the primary substitute for the obsolete Molex 0545501733. Both connectors share identical pitch, mounting configuration, and position count. The 0545501734 maintains active product status with confirmed ROHS3 compliance and solder termination. This part provides direct compatibility with existing PCB designs and cable assemblies without modification.

Hirose FH34SRJ-18S-0.5SH(50) serves as a cross-manufacturer alternative when Molex 0545501734 availability is constrained. This connector maintains the critical 0.5mm pitch and right-angle surface mount configuration. The 18-position design accommodates the 17-position requirement with one additional contact position. Operating temperature range extends to -55°C ~ 105°C, providing broader environmental capability. The rotary lock and backlock mechanism differs from the slide lock of the original part. Contact finish is gold rather than tin bismuth. Housing material is halogen-free LCP. These differences require design review for mechanical and electrical compatibility in the target application.

Both substitute parts maintain 50V voltage rating, 0.5A current rating, and ROHS3 compliance with UL94 V-0 flammability certification.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0545501734 be used as a direct replacement for the 0545501733?

A: Yes. Both connectors share identical pitch (0.5mm), position count (17), mounting type (surface mount right angle), and termination method (solder). The 0545501734 is the active equivalent with confirmed ROHS3 compliance.

Q: What are the key differences between the Molex 0545501734 and Hirose FH34SRJ-18S-0.5SH(50)?

A: The Hirose connector has 18 positions instead of 17, top and bottom contacts instead of top only, rotary lock instead of slide lock, gold contact finish instead of tin bismuth, and halogen-free housing material. Operating temperature range is extended (-55°C ~ 105°C vs. -40°C ~ 85°C). Height above board is reduced (0.039" vs. 0.047").

Q: Is the Hirose FH34SRJ-18S-0.5SH(50) compatible with existing PCB designs for the 0545501733?

A: Compatibility requires design review. The 18-position configuration and different locking mechanism necessitate PCB footprint verification. The reduced height above board and different contact configuration may affect mechanical fit and electrical performance in the target application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both the Molex 0545501734 and Hirose FH34SRJ-18S-0.5SH(50) are ROHS3 compliant with UL94 V-0 flammability certification.

Q: What is the pitch specification for all parts in this comparison?

A: All parts maintain 0.020" (0.5mm) pitch, ensuring compatibility with standard FFC/FPC cable assemblies designed for this pitch specification.

Q: Can the 18-position Hirose connector be used in applications requiring only 17 positions?

A: The 18-position design accommodates 17-position requirements with one unused contact position. Electrical and mechanical compatibility must be confirmed for the specific application, including PCB layout and cable assembly design.