FH34SW-4S-0.5SH(99) Equivalent & Substitute Parts

Part Overview

The FH34SW-4S-0.5SH(99) is a 4-position FFC/FPC connector manufactured by Hirose Electric Co Ltd, designed for surface mount, right-angle applications with 0.50mm pitch contacts. This connector features zero insertion force (ZIF) operation, gold-plated phosphor bronze contacts, and is rated for 0.5A at 50V with an operating temperature range of -55°C to 85°C.

The FH34SW-4S-0.5SH(99) is classified as obsolete. Due to its discontinued status and limited availability for new designs, identifying equivalent substitute parts is necessary to ensure supply chain continuity and support for legacy systems requiring this connector type.

Substiute Parts

FH34SW-4S-0.5SH(99)

Hirose Electric Co LtdIn Stock: 1225FH34SW-4S-0.5SH(99) Datasheet

Current PartRFQ

FH34SRJ-4S-0.5SH(99)

Hirose Electric Co LtdIn Stock: 13541FH34SRJ-4S-0.5SH(99) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FH34SW-4S-0.5SH(99) is determined by strict alignment of the following critical parameters:

• Connector Type: FFC/FPC classification
• Position Count: 4 positions
• Pitch Specification: 0.50mm (0.020")
• Mounting Configuration: Surface mount, right-angle orientation
• Electrical Ratings: Minimum 50V voltage rating and 0.5A current capacity
• Mechanical Interface: Rotary lock and backlock locking features
• Operating Temperature Range: Must support minimum -55°C to 85°C
• Contact Material and Finish: Phosphor bronze with gold plating
• Housing Material: Halogen-free LCP

The FH34SRJ-4S-0.5SH(99) qualifies as a direct substitute based on these parameters. While the substitute part features an enhanced contact configuration (top and bottom contacts) and improved operating temperature range (-55°C to 105°C), it maintains full compatibility with the critical electrical, mechanical, and environmental specifications of the original part.

Parameter Comparison

Engineering Selection Recommendations

The FH34SRJ-4S-0.5SH(99) is the qualified substitute for the obsolete FH34SW-4S-0.5SH(99). Selection of this substitute is supported by the following factors:

Product Status: The FH34SRJ-4S-0.5SH(99) maintains active manufacturing status with 13,445 units in current inventory, ensuring reliable supply for new designs and legacy system support.

Compliance and Certifications: The substitute part is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements. The enhanced material flammability rating (UL94 V-0 versus UL94 HB) provides improved safety characteristics.

Electrical and Mechanical Compatibility: All critical electrical parameters (50V voltage rating, 0.5A current capacity) and mechanical specifications (4 positions, 0.50mm pitch, surface mount right-angle configuration, rotary lock/backlock features) are maintained.

Environmental Performance: The substitute part's extended operating temperature range (-55°C to 105°C) exceeds the original specification, providing additional thermal margin for demanding applications.

Packaging: The substitute is supplied in tape and reel (TR) format, standard for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the FH34SRJ-4S-0.5SH(99) be used as a direct replacement for the FH34SW-4S-0.5SH(99)?

A: Yes. The FH34SRJ-4S-0.5SH(99) meets all critical electrical, mechanical, and environmental specifications of the original part. The 4-position configuration, 0.50mm pitch, surface mount right-angle mounting, 50V/0.5A ratings, and operating temperature range of -55°C to 85°C are fully compatible. The substitute's enhanced specifications (top and bottom contacts, extended temperature range to 105°C, improved flammability rating) provide additional capability without compromising compatibility.

Q: What is the primary difference between the FH34SW and FH34SRJ series?

A: The FH34SW features top-contact configuration only, while the FH34SRJ provides both top and bottom contact options. Both maintain identical pitch, position count, mounting style, and electrical ratings. The FH34SRJ also offers improved material flammability certification (UL94 V-0) and extended operating temperature capability.

Q: Are there any mechanical or footprint differences between these connectors?

A: Both connectors share identical mechanical specifications: 0.50mm pitch, 4-position configuration, surface mount right-angle mounting, and 1.00mm height above board. Footprint compatibility is maintained. The contact configuration difference (top only versus top and bottom) does not affect PCB layout requirements.

Q: What is the significance of the FH34SRJ's top and bottom contact configuration?

A: The dual-contact configuration provides enhanced signal integrity and redundancy options for applications requiring improved electrical performance. For applications using only top contacts, the bottom contacts remain unused without affecting connector function.

Q: Is the FH34SRJ-4S-0.5SH(99) suitable for high-reliability applications?

A: The FH34SRJ-4S-0.5SH(99) meets RoHS3 compliance and REACH requirements. The UL94 V-0 flammability rating and halogen-free materials support applications with stringent environmental and safety standards. Verify specific application requirements against the provided electrical and thermal specifications.

Q: What packaging format is available for the FH34SRJ-4S-0.5SH(99)?

A: The FH34SRJ-4S-0.5SH(99) is supplied in tape and reel (TR) format, suitable for automated pick-and-place assembly processes.