Molex 0520452845 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0520452845 is a 28-position FFC/FPC vertical connector with 1.25mm pitch designed for through-hole PCB mounting. This connector features kinked pin termination and is rated for 200V at 1A continuous current with an operating temperature range of -40°C to 85°C.

The 0520452845 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this connector.

Key Parameters

Parameter	Value
Manufacturer Part Number	0520452845
Manufacturer	Molex
Category	FFC, FPC (Flat Flexible) Connectors
Number of Positions	28
Pitch	0.049" (1.25mm)
Mounting Type	Through Hole
Connector Type	Contacts, Vertical - 1 Sided
Termination	Kinked Pin
Voltage Rating	200V
Current Rating	1A
Operating Temperature	-40°C to 85°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the Molex 0520452845 is determined by the following critical parameters:

Position Count: 28 positions (fixed requirement)
Pitch: 0.049" (1.25mm) (fixed requirement)
Connector Type: Vertical - 1 Sided contacts (fixed requirement)
Mounting: Through-hole PCB mounting (fixed requirement)
Voltage Rating: Minimum 200V
Current Rating: Minimum 1A
FFC/FPC Thickness: 0.30mm
Electrical Compliance: ROHS3 Compliant, REACH Unaffected

The substitute part Molex 0039532285 meets all critical parameters. While termination method differs (solder vs. kinked pin), both achieve equivalent electrical and mechanical function for FFC/FPC connector applications. The substitute offers enhanced features including Zero Insertion Force (ZIF) and slide lock mechanism, with improved contact finish thickness and active product status.

Parameter Comparison

Parameter	0520452845 (Main Part)	0039532285 (Substitute)
Manufacturer	Molex	Molex
Number of Positions	28	28
Pitch	0.049" (1.25mm)	0.049" (1.25mm)
Connector Type	Contacts, Vertical - 1 Sided	Contacts, Vertical - 1 Sided
Mounting Type	Through Hole	Through Hole
Termination	Kinked Pin	Solder
FFC/FPC Thickness	0.30mm	0.30mm
Height Above Board	0.315" (8.00mm)	0.295" (7.50mm)
Contact Material	Phosphor Bronze	Phosphor Bronze
Contact Finish	Tin	Tin Bismuth
Voltage Rating	200V	200V
Current Rating	1A	1A
Operating Temperature	-40°C to 85°C	-20°C to 80°C
Material Flammability	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active

Engineering Selection Recommendations

The Molex 0039532285 is the manufacturer-recommended substitute for the obsolete 0520452845. Both parts maintain identical electrical specifications (200V, 1A) and mechanical compatibility (28 positions, 1.25mm pitch, through-hole mounting).

Selection of the substitute part is supported by:

Active product status ensuring continued availability and supply chain support
ROHS3 compliance and REACH unaffected status matching the original part
Equivalent contact material and housing construction (Phosphor Bronze, PBT/Polyester)
Enhanced locking mechanism (Slide Lock) and Zero Insertion Force (ZIF) feature providing improved reliability
Solder termination method compatible with standard PCB assembly processes

The primary design consideration is termination method transition from kinked pin to solder. PCB layout and assembly procedures must accommodate solder termination requirements. Operating temperature range of the substitute (-20°C to 80°C) is narrower than the original part; applications requiring -40°C operation require evaluation against specific system requirements.

Frequently Asked Questions (FAQ)

Q: Can the 0039532285 directly replace the 0520452845 without PCB modification?

A: Mechanical and electrical compatibility is maintained. However, termination method differs (solder vs. kinked pin), requiring PCB pad design adjustment and assembly process modification. Through-hole mounting remains unchanged.

Q: What is the difference between kinked pin and solder termination?

A: Kinked pin termination uses mechanical deformation for PCB retention. Solder termination requires reflow or wave soldering processes. Both achieve equivalent electrical connection and mechanical stability when properly implemented.

Q: Are the operating temperature ranges compatible?

A: The original part operates -40°C to 85°C; the substitute operates -20°C to 80°C. Applications requiring full -40°C operation must verify substitute suitability against system specifications.

Q: What is Zero Insertion Force (ZIF)?

A: ZIF is a connector feature allowing cable insertion without applying force, reducing assembly time and connector wear. The substitute includes this feature; the original part does not.

Q: Are both parts RoHS compliant?

A: Yes. Both the 0520452845 and 0039532285 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What packaging is available for the substitute part?

A: The 0039532285 is supplied in tray packaging. Verify packaging requirements for your procurement and assembly processes.

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