Molex 0545502271 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0545502271 is a 22-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 classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

0545502271

MolexIn Stock: 7140545502271 Datasheet

Current PartRFQ

0545502272

MolexIn Stock: 8360545502272 Datasheet

MFR RecommendedRFQ

0524352271

MolexIn Stock: 65890524352271 Datasheet

MFR RecommendedRFQ

FH34SRJ-22S-0.5SH(50)

Hirose Electric Co LtdIn Stock: 3857FH34SRJ-22S-0.5SH(50) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0545502271 is determined by the following critical parameters:

• Number of Positions: Must be 22
• Pitch: Must be 0.020" (0.50mm)
• Mounting Type: Must be Surface Mount, Right Angle
• Voltage Rating: Must be 50V or higher
• Current Rating: Must be 0.5A or higher
• Termination: Must be Solder
• Connector/Contact Type: Top contact configuration preferred for direct replacement

The substitute parts listed meet these core electrical and mechanical requirements, enabling functional equivalence in circuit designs originally specified for the 0545502271.

Parameter Comparison

Engineering Selection Recommendations

Molex 0545502272 is the primary manufacturer-recommended substitute. This part maintains identical electrical and mechanical specifications to the 0545502271 while offering an extended operating temperature range (-40°C ~ 85°C versus -20°C ~ 85°C). The 0545502272 is active in production, ensuring long-term availability and supply chain stability.

Molex 0524352271 provides an alternative within the Molex Easy-On series. This part shares all critical electrical parameters and maintains the same pitch and position count. The primary design difference is increased height above board (2.00mm versus 1.20mm) and housing material composition (Polyamide PA46 versus LCP). This part is active and available in high inventory quantities.

Hirose FH34SRJ-22S-0.5SH(50) offers cross-manufacturer substitution capability. This connector maintains electrical equivalence and adds extended operating temperature range (-55°C ~ 105°C). The Hirose part features a different locking mechanism (rotary lock with backlock versus slide lock) and reduced height above board (1.00mm). The connector type includes both top and bottom contacts, providing additional design flexibility. This part is active and RoHS compliant.

All substitute parts carry appropriate compliance certifications (RoHS, REACH where specified) and maintain the same voltage and current ratings as the original part.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0545502272 be used as a direct replacement for the 0545502271?

A: Yes. The 0545502272 maintains identical pitch (0.5mm), position count (22), mounting configuration (surface mount right angle), and electrical ratings (50V, 0.5A). The extended operating temperature range provides additional design margin. No PCB layout modifications are required.

Q: What is the primary difference between the Molex 0524352271 and the 0545502271?

A: The 0524352271 has a greater height above board (2.00mm versus 1.20mm) and uses Polyamide PA46 housing material instead of LCP. These differences may affect PCB clearance and thermal performance. Verify mechanical fit before implementation.

Q: Is the Hirose FH34SRJ-22S-0.5SH(50) compatible with designs specified for the 0545502271?

A: The Hirose part meets all electrical requirements and maintains the 0.5mm pitch and 22-position configuration. However, the locking mechanism differs (rotary lock versus slide lock), and the height above board is reduced (1.00mm versus 1.20mm). PCB layout verification is necessary to confirm mechanical compatibility.

Q: What is the significance of the contact type difference (top versus top and bottom)?

A: The 0545502271 features top contacts only. The Hirose FH34SRJ-22S-0.5SH(50) includes both top and bottom contacts, providing dual-sided connection capability. For applications requiring top contact only, the bottom contacts on the Hirose part remain unused and do not affect functionality.

Q: Are all substitute parts RoHS compliant?

A: The Molex 0545502272 compliance status is not specified in available documentation. The Molex 0524352271 and Hirose FH34SRJ-22S-0.5SH(50) are both RoHS compliant. Verify RoHS requirements for your specific application before final part selection.

Q: What packaging options are available for these substitute parts?

A: The Molex 0545502271 and 0524352271 are supplied in Tape & Reel (TR) packaging. The Molex 0545502272 packaging is not specified. The Hirose FH34SRJ-22S-0.5SH(50) is supplied in Tape & Reel (TR) packaging. Confirm packaging requirements with your procurement process.