Molex 0545501771 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0545501771 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 design support, maintenance, and production continuity.

Substiute Parts

0545501771

MolexIn Stock: 9680545501771 Datasheet

Current PartRFQ

0545501772

MolexIn Stock: 11030545501772 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 0545501771 is determined by the following critical parameters:

• Pitch: 0.020" (0.50mm) - must match exactly for FFC/FPC cable compatibility
• Mounting Type: Surface mount, right angle orientation
• Voltage and Current Ratings: 50V, 0.5A minimum
• Termination: Solder termination required
• Connector Type: FFC/FPC category
• Locking Mechanism: ZIF (Zero Insertion Force) operation

Two substitute parts meet these criteria with varying position counts and mechanical features.

Parameter Comparison

Engineering Selection Recommendations

Molex 0545501772 is the primary substitute for the Molex 0545501771. Both connectors share identical position count (17), pitch (0.5mm), mounting configuration, and electrical ratings. The 0545501772 is an active product with current manufacturing support and inventory availability (1086 pcs), providing direct replacement capability for the obsolete 0545501771.

Hirose FH34SRJ-18S-0.5SH(50) serves as an alternative substitute with the following considerations: it provides 18 positions instead of 17, requiring cable redesign or position adaptation. The connector offers an extended operating temperature range (-55°C ~ 105°C versus -20°C ~ 85°C), rotary lock with backlock mechanism instead of slide lock, and halogen-free housing material. This part is active with high inventory availability (6633 pcs). Selection of this substitute requires mechanical and electrical verification for the additional position and different locking mechanism.

Both substitute parts maintain ROHS3 compliance, 50V voltage rating, 0.5A current rating, and solder termination. Product status is active for both alternatives, ensuring long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0545501772 directly replace the Molex 0545501771?

A: Yes. Both connectors have identical position count (17), pitch (0.5mm), surface mount right-angle configuration, and electrical specifications (50V, 0.5A). The 0545501772 is the direct equivalent for the obsolete 0545501771.

Q: What are the key differences between the Molex 0545501771 and Hirose FH34SRJ-18S-0.5SH(50)?

A: The primary difference is position count: 17 versus 18 positions. The Hirose connector also features rotary lock with backlock instead of slide lock, a lower profile (1.00mm versus 1.20mm height), and an extended operating temperature range (-55°C ~ 105°C). The additional position requires cable redesign or position mapping verification.

Q: Are all substitute parts RoHS compliant?

A: Yes. Both the Molex 0545501772 and Hirose FH34SRJ-18S-0.5SH(50) are ROHS3 compliant.

Q: What is the pitch specification, and why is it critical for substitution?

A: Pitch is 0.020" (0.50mm) for all listed connectors. Pitch determines FFC/FPC cable compatibility; all substitute parts must maintain this specification to ensure proper mating with existing flat flexible cables.

Q: Can the Hirose connector be used in applications designed for the Molex connector?

A: The Hirose FH34SRJ-18S-0.5SH(50) can be used only if the application accommodates the 18-position configuration and different locking mechanism. The additional position and rotary lock design require mechanical and electrical verification before implementation.

Q: What is the inventory status of these connectors?

A: Molex 0545501771 (obsolete): 874 pcs in stock. Molex 0545501772 (active): 1086 pcs in stock. Hirose FH34SRJ-18S-0.5SH(50) (active): 6633 pcs in stock.