Molex 0545481433 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0545481433 is a 14-position FFC/FPC connector with 0.5mm pitch, designed for surface mount, right-angle applications. This connector features a slide lock mechanism, zero insertion force (ZIF) design, and bottom contact configuration. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility, mechanical fit, and performance characteristics within the allowed parameter ranges for FFC/FPC connectors in this category.

Key Parameters

Parameter	Value
Number of Positions	14
Pitch	0.020" (0.50mm)
Mounting Type	Surface Mount, Right Angle
Connector/Contact Type	Contacts, Bottom
FFC/FPC Thickness	0.30mm
Voltage Rating	50V
Operating Temperature Range	-20°C ~ 85°C
Termination	Solder
Locking Feature	Slide Lock
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0545481433 is determined by the following critical parameters:

Mandatory Matching Parameters:

Number of Positions: 14
Pitch: 0.020" (0.50mm)
Mounting Type: Surface Mount, Right Angle
FFC/FPC Thickness: 0.30mm
Voltage Rating: 50V minimum
Termination: Solder
Material Flammability Rating: UL94 V-0

Allowable Variations:

Connector/Contact Type: Bottom or Top and Bottom configurations are acceptable
Locking Feature: Slide Lock, Rotary Lock, or Backlock mechanisms are functionally equivalent
Operating Temperature Range: May exceed the original range
Contact Finish: Tin Bismuth or Gold are both acceptable
Housing Material: LCP Glass Filled or LCP Halogen Free are both acceptable
Actuator Material: PPS Glass Filled or Polyamide (PA) Nylon are both acceptable
Height Above Board: Minor variations within connector design tolerances
Mating Cycles: 20 or greater

The two substitute parts listed below meet all mandatory parameters and fall within allowable variations.

Parameter Comparison

Parameter	Molex 0545481433 (Main)	Molex 0545481434 (Substitute)	Hirose FH34SRJ-14S-0.5SH(50) (Substitute)
Manufacturer Part Number	0545481433	0545481434	FH34SRJ-14S-0.5SH(50)
Manufacturer	Molex	Molex	Hirose Electric Co Ltd
Product Status	Obsolete	Active	Active
Number of Positions	14	14	14
Pitch	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
Connector/Contact Type	Contacts, Bottom	Contacts, Bottom	Contacts, Top and Bottom
FFC/FPC Thickness	0.30mm	0.30mm	0.30mm
Height Above Board	0.047" (1.20mm)	0.047" (1.20mm)	0.039" (1.00mm)
Locking Feature	Slide Lock	Slide Lock	Rotary Lock, Backlock
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish	Tin Bismuth	Tin Bismuth	Gold
Voltage Rating	50V	50V	50V
Operating Temperature Range	-20°C ~ 85°C	-20°C ~ 85°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating	Not specified	0.5A	0.5A
Mating Cycles	20	20	20
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Molex 0545481434 is the primary substitute for the obsolete Molex 0545481433. Both parts are from the same Easy-On 54548 series and share identical electrical and mechanical specifications. The 0545481434 is currently in active production with 18,867 units in stock, ensuring supply chain continuity. This part maintains ROHS3 compliance and all required certifications. Selection of this substitute requires no design modifications.

Hirose FH34SRJ-14S-0.5SH(50) is an alternative substitute from a different manufacturer. This part meets all mandatory electrical and mechanical parameters. Key differences include a top and bottom contact configuration (versus bottom-only), rotary lock with backlock mechanism (versus slide lock), and an extended operating temperature range of -55°C to 105°C. The contact finish is gold rather than tin bismuth. This part is RoHS compliant and currently in active production with 2,100 units in stock. Selection of this substitute may require mechanical layout verification due to the 0.08mm reduction in height above board and different locking mechanism.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0545481434 be used as a direct replacement for the Molex 0545481433?

A: Yes. Both parts are from the same series with identical pitch, position count, mounting type, voltage rating, and operating temperature range. No design modifications are required.

Q: What are the key differences between the Molex 0545481434 and Hirose FH34SRJ-14S-0.5SH(50)?

A: The primary differences are: contact configuration (bottom-only versus top and bottom), locking mechanism (slide lock versus rotary lock with backlock), height above board (1.20mm versus 1.00mm), contact finish (tin bismuth versus gold), and operating temperature range (-20°C to 85°C versus -55°C to 105°C). All other electrical and mechanical parameters are equivalent.

Q: Are there packaging differences between these substitutes?

A: The Molex 0545481434 and Hirose FH34SRJ-14S-0.5SH(50) are both supplied in Tape & Reel (TR) packaging. The original Molex 0545481433 packaging is not specified in the available data.

Q: Does the Hirose substitute require PCB layout changes?

A: The Hirose part has a 0.08mm lower height above board (1.00mm versus 1.20mm). Verify that this dimension does not conflict with existing PCB clearances or component placement. The different locking mechanism may also require mechanical verification in the connector cavity.

Q: Are both substitutes RoHS compliant?

A: Yes. The Molex 0545481434 is ROHS3 compliant. The Hirose FH34SRJ-14S-0.5SH(50) is RoHS compliant. Both meet environmental regulatory requirements.

Q: What is the current rating for these connectors?

A: The Molex 0545481434 and Hirose FH34SRJ-14S-0.5SH(50) are both rated for 0.5A per contact. The original Molex 0545481433 current rating is not specified.

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