FH34SW-12S-0.5SH(99) Equivalent & Substitute Parts

Part Overview

The FH34SW-12S-0.5SH(99) is a 12-position FFC/FPC connector manufactured by Hirose Electric Co Ltd, designed for surface mount, right-angle applications with 0.5mm pitch contacts. This connector features top-contact configuration with zero insertion force (ZIF) operation and is rated for 50V and 0.5A per contact.

The FH34SW-12S-0.5SH(99) is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

FH34SW-12S-0.5SH(99)

Hirose Electric Co LtdIn Stock: 899FH34SW-12S-0.5SH(99) Datasheet

Current PartRFQ

FH34SRJ-12S-0.5SH(99)

Hirose Electric Co LtdIn Stock: 3117FH34SRJ-12S-0.5SH(99) Datasheet

MFR RecommendedRFQ

AYF531235

Panasonic Electric WorksIn Stock: 16121AYF531235 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FH34SW-12S-0.5SH(99) must maintain electrical and mechanical compatibility based on the following critical parameters:

Mandatory Matching Parameters:

• Number of positions: 12
• Pitch: 0.020" (0.50mm)
• Mounting type: Surface mount, right angle
• Voltage rating: 50V minimum
• Current rating: 0.5A minimum
• FFC/FCB thickness: 0.30mm
• Height above board: 0.039" (1.00mm)
• Termination: Solder
• Mating cycles: 20 minimum

Allowable Variations:

• Contact configuration: Top or top and bottom (expanded contact access)
• Operating temperature range: May extend beyond -55°C ~ 85°C
• Housing and actuator materials: May differ if maintaining LCP base material and halogen-free compliance
• Locking mechanism: Rotary lock or flip lock acceptable
• Material flammability rating: UL94 HB or higher (V-0 acceptable)

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

FH34SRJ-12S-0.5SH(99) (Hirose Electric Co Ltd)

This is the manufacturer-recommended primary substitute. It maintains identical electrical and mechanical specifications to the FH34SW-12S-0.5SH(99) while offering active product status and improved compliance certifications. The FH34SRJ features an extended operating temperature range (-55°C ~ 105°C) and UL94 V-0 flammability rating, providing enhanced thermal performance and material compliance. The top and bottom contact configuration provides expanded contact access compared to the original top-only design. ROHS3 compliance is confirmed. This part is recommended for new designs and production continuity.

AYF531235 (Panasonic Electric Works)

This alternative substitute meets all critical electrical and mechanical parameters and is actively manufactured. It provides UL94 V-0 flammability rating and RoHS compliance. The AYF531235 uses a flip lock mechanism instead of rotary lock and copper alloy contacts instead of phosphor bronze. Operating temperature range matches the original specification (-55°C ~ 85°C). This part is suitable for applications where cross-manufacturer sourcing is acceptable and provides high inventory availability.

Frequently Asked Questions (FAQ)

Q: Can FH34SRJ-12S-0.5SH(99) be used as a direct replacement for FH34SW-12S-0.5SH(99)?

A: Yes. Both connectors share identical pitch (0.5mm), position count (12), mounting type (surface mount, right angle), voltage rating (50V), current rating (0.5A), and physical dimensions. The FH34SRJ features top and bottom contacts versus top-only on the original, which is compatible with existing cable designs. All electrical and mechanical parameters are equivalent.

Q: What is the difference between the two substitute parts?

A: FH34SRJ-12S-0.5SH(99) is manufactured by Hirose (same as the original) and offers extended temperature range (-55°C ~ 105°C) and UL94 V-0 rating. AYF531235 is manufactured by Panasonic and uses flip lock mechanism and copper alloy contacts. Both meet the core electrical and mechanical requirements. Selection depends on manufacturer preference and thermal requirements.

Q: Are there packaging differences between these parts?

A: FH34SW-12S-0.5SH(99) packaging is not specified in available data. Both FH34SRJ-12S-0.5SH(99) and AYF531235 are supplied in Tape & Reel (TR) packaging. Confirm packaging requirements with your procurement specifications.

Q: Do these substitutes maintain the same locking mechanism?

A: FH34SRJ-12S-0.5SH(99) maintains the rotary lock and backlock design of the original. AYF531235 uses flip lock and backlock. Both locking mechanisms provide equivalent mechanical security for the connector interface.

Q: Are compliance certifications equivalent?

A: FH34SRJ-12S-0.5SH(99) offers ROHS3 compliance and UL94 V-0 rating, exceeding the original UL94 HB rating. AYF531235 provides RoHS and UL94 V-0 compliance. Both substitutes meet or exceed the original compliance profile.