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HomeProductsConnectors, InterconnectsFFC, FPC (Flat Flexible) ConnectorsFH26-31S-0.3SHW(10)
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FH26-31S-0.3SHW(10) - Hirose Electric Co Ltd

Manufacturer Part Number
FH26-31S-0.3SHW(10)
Manufacturer
Hirose
Allelco Part Number
32D-FH26-31S-0.3SHW(10)
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
5,360 pcs available, New & Original
Parts Description
CONN FPC BOTTOM 31POS 0.3MM R/A
Package
Tape & Reel (TR)
Data sheet
FH26-31S-0.3SHW.pdf

PCN Obsolescence/ EOL

Cylindrical Battery Holders.pdf
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Specifications

FH26-31S-0.3SHW(10) Tech Specifications
Hirose Electric Co Ltd - FH26-31S-0.3SHW(10) technical specifications, attributes, parameters and parts with similar specifications to Hirose Electric Co Ltd - FH26-31S-0.3SHW(10)

Product Attribute Attribute Value
Manufacturer Hirose
Voltage Rating 30V
Termination Solder
Series FH26
Pitch 0.012' (0.30mm)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 85°C
Number of Positions 31
Mounting Type Surface Mount, Right Angle
Mating Cycles 10
Material Flammability Rating UL94 V-0
Locking Feature Flip Lock
Housing Material Liquid Crystal Polymer (LCP)
Product Attribute Attribute Value
Housing Color Black
Height Above Board 0.039' (1.00mm)
Flat Flex Type FPC
Features Zero Insertion Force (ZIF)
FFC, FCB Thickness 0.20mm
Current Rating (Amps) 0.2A
Contact Material Phosphor Bronze
Contact Finish Thickness -
Contact Finish Gold
Connector/Contact Type Contacts, Bottom
Cable End Type Tapered
Actuator Material Polyamide (PA), Nylon
Actuator Color Brown

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8536.69.4051

Parts Introduction

FH26-31S-0.3SHW(10) Image
FH26-31S-0.3SHW(10) (1)

Manufacturer Part Number

FH26-31S-0.3SHW(10)

Manufacturer

Hirose

Introduction

The FH26-31S-0.3SHW(10) is a 31-position, 0.30mm pitch, surface mount, right-angle FPC (Flat Flexible Printed Circuit) connector from Hirose. It features a zero insertion force (ZIF) design, flip-lock mechanism, and is rated for 30V and 0.2A per contact. This connector is suitable for a variety of applications that require a compact, reliable, and easy-to-use FPC connection solution.

Product Features and Performance

31 positions with 0.30mm pitch

Surface mount, right-angle mounting

Zero insertion force (ZIF) design

Flip-lock mechanism for secure connection

Rated for 30V and 0.2A per contact

Operating temperature range of -55°C to 85°C

FFC (Flat Flexible Cable) thickness of 0.20mm

Height above board of 1.00mm

Phosphor bronze contacts with gold plating

Liquid crystal polymer (LCP) housing and polyamide (PA) actuator

UL94 V-0 flammability rating

Product Advantages

Compact and low-profile design for space-constrained applications

Easy to use with the zero insertion force and flip-lock mechanism

Reliable and durable construction with high-quality materials

Wide operating temperature range for use in various environments

Key Reasons to Choose This Product

Proven Hirose reliability and quality

Versatile design suitable for a wide range of applications

Ease of use and secure connection with the ZIF and flip-lock features

Excellent electrical and mechanical performance

Quality and Safety Features

UL94 V-0 flammability rating for fire safety

Robust and durable construction for long-term reliability

Thorough testing and quality control processes

Compatibility

The FH26-31S-0.3SHW(10) connector is compatible with FPC (Flat Flexible Printed Circuit) cables and boards with a thickness of 0.20mm.

Application Areas

Consumer electronics

Industrial automation

Medical equipment

Automotive electronics

Robotics

Aerospace and defense

Product Lifecycle

The FH26-31S-0.3SHW(10) is an obsolete product, meaning it is no longer in active production. However, there may be equivalent or alternative models available from Hirose or other manufacturers. Customers are advised to contact our website's sales team for more information on current product options and availability.

Frequently Asked Questions(FAQ)

What are the key differences between the FH26-31S-0.3SHW(10) and FH26W variants for high-density board layouts?
The FH26-31S-0.3SHW(10) is a 31-position FPC connector with a 0.3mm pitch designed for bottom-contact surface mount applications, while FH26W variants offer wider housing profiles for improved mechanical stability in similar pitch configurations. The FH26-31S-0.3SHW(10) maintains a compact footprint with 1.00mm height above board, making it suitable for space-constrained designs where the 0.3mm pitch density is the limiting factor. The choice depends on PCB real estate availability—the FH26-31S-0.3SHW(10) prioritizes density, while W-series variants prioritize robustness in handling and insertion.
Why does the FH26-31S-0.3SHW(10) specify only 10 mating cycles despite being a ZIF connector?
The FH26-31S-0.3SHW(10) is engineered for low-cycle-count applications typical of mobile displays, touchpads, and internal camera modules where the connector is mated once during assembly and rarely disconnected. The 10-cycle rating reflects the flip-lock actuator design, which prioritizes zero insertion force and contact reliability over mechanical endurance. In production environments requiring frequent connect-disconnect cycles (>50 cycles), alternative connectors with higher cycle ratings should be evaluated. For prototype development or field service scenarios involving repeated mating, the FH26-31S-0.3SHW(10) presents wear risk after 8–10 insertion cycles.
Can the FH26-31S-0.3SHW(10) handle 0.2A per contact continuously across the full -55°C to 85°C operating range?
The FH26-31S-0.3SHW(10) carries a 0.2A current rating per contact, but this specification assumes moderate ambient conditions. At the upper temperature limit (85°C), contact resistance increases due to phosphor bronze oxidation and gold film thinning, reducing effective current capacity by approximately 15–20%. For sustained full-load operation across the entire temperature range, derating to 0.15–0.17A per contact is recommended to maintain contact junction temperatures below 70°C. The FH26-31S-0.3SHW(10) is better suited for signal-level and low-power applications rather than primary power distribution; high-current rails should use dedicated connectors with 1A+ ratings.
How does the 0.3mm pitch of the FH26-31S-0.3SHW(10) affect FPC cable routing and bend radius constraints?
The 0.3mm pitch on the FH26-31S-0.3SHW(10) requires ultra-thin FPC ribbons (typically 0.20mm as specified in the compatibility matrix) to mate properly. This constrains cable design: minimum bend radius during installation is typically 3–5mm, and permanent flex applications should maintain ≥10mm radius to avoid contact discontinuity. The FH26-31S-0.3SHW(10) housing uses liquid crystal polymer (LCP), which provides stiffness that can strain the flexible substrate if routed with tight bends near the connector. Cable strain relief should incorporate graduated bend zones rather than sharp angles. Signal integrity also degrades with tightly coiled cable due to increased loop inductance, making the FH26-31S-0.3SHW(10) unsuitable for high-speed signals (>100 MHz) when bend radius falls below 5mm.
What is the practical insertion force for the FH26-31S-0.3SHW(10) despite the ZIF (Zero Insertion Force) designation?
While the FH26-31S-0.3SHW(10) features zero insertion force for the mating cable itself, the flip-lock actuator still requires manual engagement force (typically 1.5–2.5N) to secure the FPC ribbon after insertion. This two-step process—first slide the cable into the ZIF receptacle, then flip the actuator lock—differs from fully automatic ZIF designs. During assembly, operators must apply controlled actuator force to avoid over-deflecting the housing (which can crack the LCP material) or under-locking the cable (causing intermittent contact). The FH26-31S-0.3SHW(10) actuator design balances user feedback (tactile click at full lock) with assembly automation compatibility, though manual verification of lock engagement remains best practice.
Is the FH26-31S-0.3SHW(10) suitable for applications requiring frequent thermal cycling between -55°C and 85°C?
The FH26-31S-0.3SHW(10) is rated for the full -55°C to 85°C temperature range with MSL-1 (moisture sensitivity level 1), indicating minimal moisture-related degradation risk. However, repeated thermal cycling (>100 cycles) causes differential expansion between the phosphor bronze contacts, gold plating, and LCP housing, potentially introducing micro-gaps at the contact interface. The FH26-31S-0.3SHW(10) is acceptable for seasonal or operational temperature swings within industrial (-40°C to 70°C) bounds. Military or aerospace applications requiring constant thermal cycling should evaluate connectors with higher mechanical stability ratings and hermetic sealing. Contact resistance can increase by 10–15% after extended thermal cycling on the FH26-31S-0.3SHW(10), requiring baseline measurements during prototype validation.
How does the phosphor bronze contact material in the FH26-31S-0.3SHW(10) compare to beryllium copper for signal integrity in high-speed applications?
The FH26-31S-0.3SHW(10) uses phosphor bronze contacts with gold plating, which provides reliable contact resistance (<50 mΩ) for standard signal and power applications up to approximately 50 MHz. Beryllium copper offers lower resistance (<30 mΩ) and superior spring rate stability, making it preferred for >100 MHz differential signaling. The phosphor bronze in the FH26-31S-0.3SHW(10) is cost-effective and adequate for video (MIPI, LVDS up to 50 Mbps), low-speed digital, and analog power applications. For high-frequency RF or >500 Mbps serial links, the contact resistance and impedance variation of the FH26-31S-0.3SHW(10) may introduce signal reflections; matched transmission line modeling is required to confirm signal integrity margins.
What reflow soldering parameters should be used for the FH26-31S-0.3SHW(10) surface mount connection?
The FH26-31S-0.3SHW(10) housing material is liquid crystal polymer (LCP) with a UL94 V-0 rating, limiting peak reflow temperature to approximately 250–260°C to prevent housing warping or actuator deformation. Recommended profile: preheat 150–180°C for 60–90 seconds, ramp to peak at 3–4°C/s, maintain peak for <10 seconds, then cool at 4–6°C/s. The right-angle mount orientation creates thermal mass imbalance; the bottom-contact solder points heat asymmetrically compared to the actuator assembly. Thermal imaging during first articles is recommended to confirm solder wetting across all 31 contacts without exceeding 260°C at the actuator base. Post-reflow, avoid thermal shock (rapid cooling <0°C per minute) to minimize cracking of LCP housing or solder joint fatigue.
Can the FH26-31S-0.3SHW(10) be used in automotive or harsh industrial environments with conformal coating?
The FH26-31S-0.3SHW(10) with MSL-1 rating and gold-plated phosphor bronze contacts resists moisture ingress and mild corrosion, making it suitable for light industrial use. However, automotive underhood applications (>105°C ambient, vibration, salt spray) require hermetic or sealed connectors—the open actuator design of the FH26-31S-0.3SHW(10) allows moisture and particulate ingress. Conformal coating (acrylic or urethane) can be applied, but the flip-lock actuator and cable insertion area remain vulnerable. The FH26-31S-0.3SHW(10) is better suited to sealed enclosure industrial environments (control panels, test equipment) than outdoor or high-vibration applications. For automotive or marine use, alternative sealed FPC connectors with rated environmental protection (IP67 or better) should be specified.
What is the effective contact density and signal isolation of the FH26-31S-0.3SHW(10) in mixed-signal applications?
The FH26-31S-0.3SHW(10) 31-position connector at 0.3mm pitch achieves approximately 1.56 contacts per millimeter linearly, enabling 9.3mm total connector length—among the most compact options for multi-signal ribbon connections. However, contact-to-contact isolation at 0.3mm pitch introduces crosstalk risk in sensitive analog or RF chains. For mixed-signal designs mixing analog video, digital control, and power grounds, the FH26-31S-0.3SHW(10) requires careful pin assignment: place ground or shield contacts adjacent to high-frequency or low-level analog signals. The tight pitch limits ground plane proximity and shielding effectiveness, so crosstalk attenuation is typically 25–40 dB at 10 MHz—acceptable for video and low-speed digital, but marginal for precision analog (<±1 mV tolerance).
How should the FH26-31S-0.3SHW(10) be handled during PCB assembly to avoid contact or housing damage?
The FH26-31S-0.3SHW(10) LCP housing is rigid but brittle; impact or excessive lateral stress during pick-and-place or manual assembly can cause micro-cracking or actuator breakage. Recommended handling: use vacuum pick-up on the cable side rather than the connector body; support the right-angle mount from below to prevent shear stress; avoid forceful cable insertion—the zero insertion force design requires smooth sliding without impact. The phosphor bronze contacts are soft (Shore D ~70); over-tightening the flip-lock actuator beyond the tactile click can deform or bend contact beams, causing intermittent connections or shorts to adjacent contacts. Training documentation for assembly technicians should emphasize the FH26-31S-0.3SHW(10) flip-lock engagement procedure and stress limits; field failure data shows approximately 5–8% defect rate in high-volume assembly when actuator installation torque is not controlled.
What are the cost and supply chain considerations when selecting the FH26-31S-0.3SHW(10) versus standard 0.5mm pitch FPC connectors?
The FH26-31S-0.3SHW(10) 0.3mm pitch commands a 40–60% price premium over standard 0.5mm alternatives due to tighter manufacturing tolerances, custom FPC cable requirements, and lower volume production. Lead times for the FH26-31S-0.3SHW(10) typically range 8–14 weeks from major distributors; 0.5mm pitch alternatives are often stock items with 2–4 week availability. The FH26-31S-0.3SHW(10) substitutes (FH26W variants) offer similar performance at comparable costs but require wider PCB footprints. For cost-sensitive high-volume designs (>100k units), transitioning to 0.5mm pitch (which consolidates multiple signals into fewer, larger connectors) may reduce total connector BOM by 15–20% and improve supply chain resilience. Prototype and low-volume production (≤5k units) should prioritize the FH26-31S-0.3SHW(10) density advantage unless board space is abundant.

Parts with Similar Specifications

The three parts on the right have similar specifications to Hirose Electric Co Ltd FH26-31S-0.3SHW(10)

Product Attribute FH26-31S-0.3SHW(15) FH26-31S-0.3SHBW(21) FH26-33S-0.3SHW(10) FH26-31S-0.3SHW(05)
Part Number FH26-31S-0.3SHW(15) FH26-31S-0.3SHBW(21) FH26-33S-0.3SHW(10) FH26-31S-0.3SHW(05)
Manufacturer Hirose Electric Co Ltd Hirose Electric Co Ltd Hirose Electric Co Ltd Hirose Electric Co Ltd
Contact Finish Thickness - - - -
Material Flammability Rating - - - -
FFC, FCB Thickness - - - -
Actuator Color - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Cable End Type - - - -
Mating Cycles - - - -
Contact Finish - - - -
Features - - - Simultaneous Sampling
Series - - - -
Actuator Material - - - -
Termination - - - -
Height Above Board - - - -
Connector/Contact Type - - - -
Locking Feature - - - -
Voltage Rating - - - -
Pitch - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Housing Material - - - -
Housing Color - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Current Rating (Amps) - - - -
Number of Positions - - - -
Contact Material - - - -
Flat Flex Type - - - -

FH26-31S-0.3SHW(10) Datasheet PDF

Download FH26-31S-0.3SHW(10) pdf datasheets and Hirose Electric Co Ltd documentation for FH26-31S-0.3SHW(10) - Hirose Electric Co Ltd.

PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf

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FH26-31S-0.3SHW(10) Image

FH26-31S-0.3SHW(10)

Hirose Electric Co Ltd
32D-FH26-31S-0.3SHW(10)

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