Molex 0545501071 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0545501071 is a 10-position FFC/FPC connector with 0.5mm pitch, designed for surface mount right-angle applications. This connector features top-contact configuration with slide lock mechanism and zero insertion force (ZIF) operation. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility, mechanical fit, and functional performance within the specified operating parameters.

Key Parameters

Parameter	Value
Number of Positions	10
Pitch	0.020" (0.50mm)
Mounting Type	Surface Mount, Right Angle
Connector Type	FFC/FPC Contacts
Voltage Rating	50V
Current Rating	0.5A
Operating Temperature	-20°C ~ 85°C
Termination	Solder
FFC/FCB Thickness	0.30mm
Locking Feature	Slide Lock
Zero Insertion Force	Yes
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following core parameters:

Critical Parameters (Must Match):

Number of positions: 10
Pitch: 0.020" (0.50mm)
Mounting type: Surface mount, right angle
Connector type: FFC/FPC
Termination: Solder
FFC/FCB thickness: 0.30mm
Voltage rating: 50V
Zero insertion force capability: Required

Compatible Variation Parameters:

Contact configuration (top, bottom, or top and bottom)
Height above board (within mechanical assembly constraints)
Locking mechanism type (slide lock, flip lock, rotary lock)
Contact material and finish (phosphor bronze/gold, copper alloy/tin, etc.)
Housing material (LCP, thermoplastic, polyamide)
Operating temperature range (may exceed minimum requirement)
Current rating (may equal or exceed 0.5A)
Mating cycles (when specified)

The four substitute parts listed meet the critical parameters while exhibiting acceptable variations in contact configuration, locking mechanisms, and material specifications.

Parameter Comparison

Parameter	0545501071 (Main)	0545501072	086212010340800A+	687110149022	FH34SRJ-10S-0.5SH(50)
Manufacturer	Molex	Molex	KYOCERA AVX	Würth Elektronik	Hirose Electric
Number of Positions	10	10	10	10	10
Pitch	0.020" (0.50mm)	0.020" (0.50mm)	0.020" (0.50mm)	0.020" (0.50mm)	0.020" (0.50mm)
Mounting Type	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle
Contact Configuration	Top	Top	Top	Bottom	Top and Bottom
Height Above Board	0.047" (1.20mm)	0.047" (1.20mm)	0.079" (2.00mm)	0.087" (2.20mm)	0.039" (1.00mm)
Locking Feature	Slide Lock	Slide Lock	Slide Lock	Flip Lock	Rotary Lock, Backlock
FFC/FCB Thickness	0.30mm	0.30mm	0.30mm	0.30mm	0.30mm
Voltage Rating	50V	50V	50V	50V	50V
Current Rating	0.5A	0.5A	0.4A	0.5A	0.5A
Operating Temperature	-20°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 105°C	-55°C ~ 105°C
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Phosphor Bronze
Contact Finish	Gold	Gold	Tin Copper	Tin	Gold
Housing Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Thermoplastic	Polyamide (PA6T), Nylon 6T	Liquid Crystal Polymer (LCP), Halogen Free
Zero Insertion Force	Yes	Yes	Yes	Yes	Yes
Termination	Solder	Solder	Solder	Solder	Solder
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Mating Cycles	20	20	Not specified	20	20

Engineering Selection Recommendations

Molex 0545501072 is the primary direct substitute. This part maintains identical electrical and mechanical specifications to the 0545501071, including top-contact configuration, slide lock mechanism, and 1.20mm height above board. The 0545501072 is active in production with expanded operating temperature range (-40°C to 85°C versus -20°C to 85°C). Both parts share the same Easy-On 54550 series designation and are manufactured by Molex, ensuring design continuity and supply chain compatibility.

KYOCERA AVX 086212010340800A+ provides substitution with acceptable parameter variations. This part maintains the 10-position, 0.5mm pitch, top-contact configuration, and slide lock mechanism. The primary differences are increased height above board (2.00mm), copper alloy contact material with tin finish, and reduced current rating (0.4A versus 0.5A). This substitute is suitable for applications where the increased height does not create mechanical conflicts and where the 0.4A current rating meets circuit requirements.

Würth Elektronik 687110149022 offers substitution with bottom-contact configuration. This part maintains all critical electrical parameters and 0.30mm FFC thickness. The bottom-contact design requires PCB layout modification compared to the top-contact original. The flip lock mechanism differs from the slide lock, and the increased height (2.20mm) must be verified against mechanical assembly constraints. Operating temperature range extends to 105°C, providing enhanced thermal performance.

Hirose Electric FH34SRJ-10S-0.5SH(50) provides substitution with top and bottom contact configuration. This dual-contact design offers flexibility in PCB layout implementation. The rotary lock with backlock mechanism differs from slide lock operation. The lowest height above board (1.00mm) provides advantage in space-constrained applications. Extended operating temperature range (-55°C to 105°C) and halogen-free LCP housing material support demanding environmental specifications.

All substitute parts maintain ROHS3 compliance, 50V voltage rating, solder termination, and zero insertion force operation.

Frequently Asked Questions (FAQ)

Q: Can the 0545501072 be used as a direct replacement for the 0545501071?

A: Yes. The 0545501072 is functionally equivalent with identical contact configuration (top), pitch (0.5mm), position count (10), and locking mechanism (slide lock). Both are Molex Easy-On 54550 series connectors. The primary difference is expanded operating temperature range on the 0545501072 (-40°C to 85°C versus -20°C to 85°C). No PCB layout modifications are required.

Q: What is the difference between top-contact and bottom-contact FFC connectors?

A: Contact configuration determines which side of the connector engages the FFC cable. Top-contact connectors (0545501071, 0545501072, 086212010340800A+, FH34SRJ) position contacts on the upper surface, while bottom-contact connectors (687110149022) position contacts on the lower surface. Selection depends on PCB layout and cable routing requirements. Substituting between top and bottom configurations requires PCB redesign.

Q: Does the height above board affect substitution compatibility?

A: Yes, when mechanical clearance is constrained. The original 0545501071 has 1.20mm height. Substitutes range from 1.00mm (Hirose) to 2.20mm (Würth). Verify that selected substitute height does not interfere with adjacent components, shielding, or enclosure constraints. Lower height (Hirose at 1.00mm) provides advantage in space-limited designs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitutes (0545501072, 086212010340800A+, 687110149022, FH34SRJ-10S-0.5SH(50)) are ROHS3 compliant, matching the original part's environmental certification status.

Q: What is the significance of the locking mechanism differences?

A: The original 0545501071 uses slide lock mechanism. Substitutes employ slide lock (0545501072, 086212010340800A+), flip lock (687110149022), or rotary lock with backlock (FH34SRJ). Locking mechanism affects cable insertion/removal procedure and mechanical engagement force. Verify that selected locking mechanism is compatible with assembly equipment and end-user handling procedures.

Q: Can the KYOCERA AVX 086212010340800A+ be used if the application requires 0.5A current?

A: The 086212010340800A+ has 0.4A current rating versus the original 0.5A specification. This substitute is suitable only if circuit analysis confirms that maximum current draw does not exceed 0.4A. If the application requires full 0.5A capability, select alternative substitutes (0545501072, 687110149022, or FH34SRJ-10S-0.5SH(50)), all rated at 0.5A.

Q: What packaging formats are available for these substitutes?

A: The Molex 0545501072, KYOCERA AVX 086212010340800A+, and Würth Elektronik 687110149022 are supplied in Tape & Reel (TR) packaging. The Hirose Electric FH34SRJ-10S-0.5SH(50) is available in Cut Tape (CT) and Digi-Reel® packaging. Verify packaging format compatibility with procurement and assembly processes.

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