FH35-45S-0.3SHW(50) Equivalent & Substitute Parts

Part Overview

The FH35-45S-0.3SHW(50) is a 45-position FPC (Flat Flexible Connector) manufactured by Hirose Electric Co Ltd, designed for surface mount, right-angle applications with 0.30mm pitch contacts. This connector features zero insertion force (ZIF) operation, rotary lock with backlock mechanism, and top-contact configuration. The part is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing design support and component procurement.

Substiute Parts

FH35-45S-0.3SHW(50)

Hirose Electric Co LtdIn Stock: 2901FH35-45S-0.3SHW(50) Datasheet

Current PartRFQ

FH35C-45S-0.3SHW(50)

Hirose Electric Co LtdIn Stock: 3547FH35C-45S-0.3SHW(50) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FH35-45S-0.3SHW(50) is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 45
• Pitch: 0.30mm (0.012")
• Mounting Type: Surface Mount, Right Angle
• Voltage Rating: 30V
• Current Rating: 0.2A
• Operating Temperature Range: -55°C ~ 85°C
• Termination: Solder
• Height Above Board: 0.035" (0.88mm)
• FFC Thickness: 0.20mm
• Contact Material: Phosphor Bronze
• Contact Finish: Gold
• Housing Material: Liquid Crystal Polymer (LCP)
• Actuator Material: Polyamide (PA), Nylon
• Material Flammability Rating: UL94 V-0

Allowable Variations:

• Connector/Contact Type: Top contacts (main part) may be substituted with Top and Bottom contacts (substitute part) as this represents an enhanced configuration
• Locking Feature: Rotary Lock (main part) may be substituted with Flip Lock (substitute part), provided backlock functionality is retained
• Product Status: Active parts may substitute obsolete parts
• Housing Color and Actuator Color: Non-functional cosmetic attributes
• Packaging: Different packaging formats (standard vs. Tape & Reel) do not affect electrical or mechanical compatibility

Parameter Comparison

Engineering Selection Recommendations

The FH35C-45S-0.3SHW(50) is a direct functional substitute for the obsolete FH35-45S-0.3SHW(50). Both connectors share identical electrical specifications (30V, 0.2A), mechanical dimensions (45 positions, 0.30mm pitch, 0.88mm height), and material certifications (UL94 V-0, Phosphor Bronze with Gold finish).

The primary differences are:

Product Status: The FH35C variant is currently active in production, ensuring long-term availability and supply chain continuity compared to the obsolete FH35 series.

Contact Configuration: The FH35C provides top and bottom contact access versus top-only contacts on the FH35. This enhanced configuration maintains full compatibility with applications designed for top-contact operation while offering additional flexibility for dual-sided signal routing.

Locking Mechanism: The FH35C employs a flip lock mechanism in place of the rotary lock found on the FH35. Both configurations retain backlock functionality for secure mating. The flip lock design represents current Hirose manufacturing standards for this connector family.

Compliance Status: The FH35C-45S-0.3SHW(50) carries RoHS Compliant certification and REACH Unaffected status, meeting modern regulatory requirements for component procurement.

For new designs or component replacement in existing applications, the FH35C-45S-0.3SHW(50) is the recommended selection based on active product status and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the FH35C-45S-0.3SHW(50) directly replace the FH35-45S-0.3SHW(50) in existing PCB designs?

A: Yes. Both connectors share identical pitch (0.30mm), position count (45), mounting type (surface mount right angle), and height above board (0.88mm). PCB footprints and solder pad layouts are compatible. The top and bottom contact configuration of the FH35C is a superset of the top-only configuration of the FH35, ensuring functional compatibility.

Q: What is the difference between the rotary lock and flip lock mechanisms?

A: Both mechanisms provide secure mating with backlock retention. The rotary lock (FH35) uses a rotating actuator, while the flip lock (FH35C) uses a hinged actuator design. Both achieve equivalent mechanical security and zero insertion force operation. The flip lock represents current manufacturing standards for the FH35C series.

Q: Are there packaging differences between these parts?

A: The FH35-45S-0.3SHW(50) is supplied in standard packaging, while the FH35C-45S-0.3SHW(50) is available in Tape & Reel (TR) format. Packaging does not affect connector electrical or mechanical performance. Tape & Reel packaging is standard for high-volume production environments.

Q: Does the FH35C meet current regulatory requirements?

A: Yes. The FH35C-45S-0.3SHW(50) is RoHS Compliant and REACH Unaffected. Both the FH35 and FH35C carry UL94 V-0 material flammability certification and operate across the same temperature range (-55°C ~ 85°C).

Q: What is the contact finish thickness specification for the FH35C?

A: The FH35C-45S-0.3SHW(50) specifies a contact finish thickness of 11.8µin (0.30µm) gold plating. This specification is not provided for the FH35 variant but represents standard gold plating thickness for Hirose FPC connectors in this series.

Q: Are both connectors rated for the same electrical specifications?

A: Yes. Both the FH35-45S-0.3SHW(50) and FH35C-45S-0.3SHW(50) are rated for 30V maximum voltage and 0.2A maximum current per contact, with identical operating temperature ranges of -55°C ~ 85°C.