FH35-45S-0.3SHW(99) Equivalent & Substitute Parts

Part Overview

The FH35-45S-0.3SHW(99) 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 top-contact configuration with zero insertion force (ZIF) operation and is rated for 30V and 0.2A per contact.

The FH35-45S-0.3SHW(99) is classified as obsolete. Identifying equivalent substitute parts is essential for design continuity, procurement flexibility, and long-term product support when original inventory becomes unavailable.

Substiute Parts

FH35-45S-0.3SHW(99)

Hirose Electric Co LtdIn Stock: 1257FH35-45S-0.3SHW(99) Datasheet

Current PartRFQ

FH35C-45S-0.3SHW(99)

Hirose Electric Co LtdIn Stock: 1269FH35C-45S-0.3SHW(99) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for FPC connectors is determined by strict alignment of electrical and mechanical parameters. The following criteria establish compatibility:

Critical Parameters for Substitution:

• Number of positions: 45
• Pitch: 0.012" (0.30mm)
• Mounting type: Surface mount, right angle
• Voltage rating: 30V minimum
• Current rating: 0.2A minimum
• Operating temperature range: -55°C ~ 85°C
• FFC thickness: 0.20mm
• Height above board: 0.035" (0.88mm)
• Termination: Solder
• Contact material: Phosphor bronze
• Contact finish: Gold
• Housing material: Liquid Crystal Polymer (LCP)
• Flammability rating: UL94 V-0

The FH35C-45S-0.3SHW(99) meets all critical electrical and mechanical parameters required for direct substitution. While the contact configuration differs (top and bottom contacts versus top only), the electrical performance, pitch, position count, and physical mounting characteristics remain compatible with the original design envelope.

Parameter Comparison

Engineering Selection Recommendations

The FH35C-45S-0.3SHW(99) is the primary substitute for the obsolete FH35-45S-0.3SHW(99). Selection is based on the following engineering factors:

Product Status: The FH35C-45S-0.3SHW(99) maintains active product status with Hirose Electric Co Ltd, ensuring continued availability and manufacturing support. The original FH35-45S-0.3SHW(99) is obsolete, making the active substitute essential for ongoing production and field replacements.

Compliance and Certifications: Both parts meet UL94 V-0 flammability requirements. The FH35C-45S-0.3SHW(99) is RoHS compliant, providing additional regulatory alignment for modern supply chain requirements.

Electrical and Mechanical Compatibility: All critical parameters—position count, pitch, voltage rating, current rating, operating temperature range, and physical dimensions—are identical between the two parts. The connector maintains the same solder termination, contact material composition, and housing specifications.

Packaging Consideration: The FH35C-45S-0.3SHW(99) is supplied in Tape & Reel (TR) packaging, which is standard for high-volume surface mount assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the FH35C-45S-0.3SHW(99) be used as a direct replacement for the FH35-45S-0.3SHW(99)?

A: Yes. Both connectors share identical electrical ratings (30V, 0.2A), mechanical dimensions (45 positions, 0.30mm pitch, 0.88mm height), and operating temperature range (-55°C ~ 85°C). The primary difference is contact configuration: the FH35-45S-0.3SHW(99) features top contacts only, while the FH35C-45S-0.3SHW(99) includes both top and bottom contacts. This difference does not affect compatibility when the original design uses only top contacts.

Q: What is the difference between the FH35-45S-0.3SHW(99) and FH35C-45S-0.3SHW(99)?

A: The FH35C variant includes both top and bottom contact positions, whereas the original FH35 variant includes top contacts only. Both maintain identical pitch, position count, voltage, current, and physical mounting characteristics. The FH35C is the active product line successor.

Q: Why is the FH35-45S-0.3SHW(99) listed as obsolete?

A: The FH35-45S-0.3SHW(99) has been superseded by the FH35C series. Hirose Electric Co Ltd has transitioned manufacturing to the FH35C line, which offers enhanced contact configuration options while maintaining backward compatibility with the original electrical and mechanical specifications.

Q: Are there any design changes required to use the FH35C-45S-0.3SHW(99) as a substitute?

A: No design changes are required. The FH35C-45S-0.3SHW(99) maintains identical PCB footprint, solder pad layout, and mechanical mounting dimensions. The connector can be substituted without circuit board redesign.

Q: What packaging formats are available for the FH35C-45S-0.3SHW(99)?

A: The FH35C-45S-0.3SHW(99) is supplied in Tape & Reel (TR) packaging, which is optimized for automated surface mount assembly processes.

Q: Is the FH35C-45S-0.3SHW(99) RoHS compliant?

A: Yes. The FH35C-45S-0.3SHW(99) is RoHS compliant, meeting current regulatory requirements for electronic component manufacturing and distribution.