Molex 0520451445 FFC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0520451445 is a 14-position FFC (Flat Flexible) connector with vertical, single-sided contacts designed for through-hole PCB mounting at 1.25mm pitch. This connector features kinked pin termination and operates across -40°C to 85°C with a 200V voltage rating and 1A current capacity.

The 0520451445 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this connector specification.

Substiute Parts

0520451445

MolexIn Stock: 11350520451445 Datasheet

Current PartRFQ

0039532145

MolexIn Stock: 465410039532145 Datasheet

MFR RecommendedRFQ

1-84534-4

TE Connectivity AMP ConnectorsIn Stock: 11561-84534-4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0520451445 is determined by strict alignment of the following core parameters:

Critical Matching Parameters:

• Number of Positions: 14
• Pitch: 0.049" (1.25mm)
• Mounting Type: Through Hole
• Connector Type: Contacts, Vertical - 1 Sided
• FFC Thickness: 0.30mm
• Contact Material: Phosphor Bronze
• Voltage Rating: 200V or higher
• Current Rating: 1A or higher
• Operating Temperature Range: Must encompass -40°C to 85°C or equivalent
• RoHS Compliance: ROHS3 Compliant

Identified Substitutes:

1. Molex 0039532145 (Series 5597) - Active product status. Matches all critical parameters with enhanced features including Slide Lock locking mechanism and Zero Insertion Force (ZIF). Termination differs (Solder vs. Kinked Pin). Operating temperature range is -20°C to 80°C, which does not fully encompass the original -40°C specification.

2. TE Connectivity 1-84534-4 (AMP Connectors) - Active product status. Matches position count, pitch, mounting type, and connector configuration. Voltage rating is 50V, which is below the original 200V specification. Termination matches (Kinked Pin). Operating temperature range is -40°C to 85°C, fully encompassing the original specification.

Parameter Comparison

Engineering Selection Recommendations

Molex 0039532145 (Series 5597):

This substitute maintains full compatibility with the original 0520451445 across all critical electrical parameters: 14 positions, 1.25mm pitch, 200V voltage rating, 1A current capacity, and ROHS3 compliance. The connector features an active product status with substantial inventory availability (46,492 units in stock).

Key differences include termination method (Solder vs. Kinked Pin) and operating temperature range (-20°C to 80°C vs. -40°C to 85°C). The lower temperature minimum of -20°C represents a constraint for applications requiring -40°C operation. The addition of Slide Lock locking mechanism and Zero Insertion Force (ZIF) functionality provides enhanced mechanical reliability and ease of assembly compared to the original design.

TE Connectivity 1-84534-4:

This substitute matches the original connector across position count, pitch, mounting configuration, termination type (Kinked Pin), and operating temperature range (-40°C to 85°C). RoHS compliance is confirmed.

The critical limitation is the voltage rating of 50V, which is substantially below the original 200V specification. This substitute is suitable only for applications with voltage requirements not exceeding 50V. Housing material differs (Glass Filled PBT vs. standard PBT/Polyester), and material flammability rating is not specified. Inventory availability is limited (1,101 units in stock).

Selection Guidance:

For applications requiring the full 200V voltage rating and -40°C minimum operating temperature, the Molex 0039532145 is the appropriate substitute despite the termination method change and slightly reduced temperature maximum.

For applications with voltage requirements of 50V or lower and full -40°C to 85°C temperature range, the TE Connectivity 1-84534-4 provides an alternative with matching termination and temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0039532145 directly replace the 0520451445 in existing designs?

A: The Molex 0039532145 matches all critical electrical parameters and physical dimensions. However, the termination method differs (Solder vs. Kinked Pin), requiring PCB layout modification. The operating temperature range is reduced to -20°C to 80°C, which excludes -40°C operation. Designs operating within -20°C to 80°C and compatible with solder termination can utilize this substitute.

Q: What is the voltage limitation of the TE Connectivity 1-84534-4?

A: The TE Connectivity 1-84534-4 has a maximum voltage rating of 50V. Applications requiring 200V operation cannot use this substitute. Verify application voltage requirements before selection.

Q: Are there physical dimension differences between the substitutes and the original?

A: Height above board varies slightly: Original 0520451445 is 0.315" (8.00mm), Molex 0039532145 is 0.295" (7.50mm), and TE Connectivity 1-84534-4 is 0.307" (7.80mm). These differences may affect PCB layout and component clearance. Verify mechanical fit within your application enclosure.

Q: Do all three connectors meet RoHS compliance requirements?

A: Yes. The original Molex 0520451445 and substitute Molex 0039532145 are ROHS3 Compliant. The TE Connectivity 1-84534-4 is RoHS Compliant. Both compliance levels are acceptable for RoHS-regulated applications.

Q: What is the difference between Kinked Pin and Solder termination?

A: Kinked Pin termination uses pre-formed leads that insert directly into PCB through-holes without additional soldering. Solder termination requires manual or wave soldering of the connector leads to PCB pads. Solder termination typically provides stronger mechanical connection but requires soldering process capability.

Q: Which substitute has better availability?

A: The Molex 0039532145 has significantly higher inventory availability with 46,492 units in stock compared to 1,101 units for the TE Connectivity 1-84534-4. For supply chain continuity, the Molex option is preferred.

Q: Can I use the TE Connectivity connector in a 200V application?

A: No. The TE Connectivity 1-84534-4 has a maximum voltage rating of 50V and cannot be used in applications requiring 200V operation. Using this connector in a 200V circuit exceeds its electrical rating and creates safety and reliability risks.