FX10B-140P/14-SV(21) Equivalent & Substitute Parts

Part Overview

The FX10B-140P/14-SV(21) is a 140-position rectangular connector header manufactured by Hirose Electric Co Ltd, part of the FunctionMax™ FX10 series. This surface mount connector features outer shroud contacts with gold plating and is designed for high-density interconnect applications requiring reliable signal and power distribution.

The FX10B-140P/14-SV(21) carries an obsolete product status. Identifying equivalent and substitute parts is essential for design continuity, procurement planning, and ensuring long-term component availability for production and field service applications.

Substiute Parts

FX10B-140P/14-SV(21)

Hirose Electric Co LtdIn Stock: 996FX10B-140P/14-SV(21) Datasheet

Current PartRFQ

FX10B-140P/14-SV(91)

Hirose Electric Co LtdIn Stock: 941FX10B-140P/14-SV(91) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FX10B-140P/14-SV(21) is determined by strict equivalence across the following critical parameters:

• Connector Type & Series: Header, Outer Shroud Contacts within the FunctionMax™ FX10 series
• Position Count & Pitch: 140 positions at 0.020" (0.50mm) pitch
• Row Configuration: 2-row arrangement
• Mounting Technology: Surface Mount (SMD)
• Contact Specifications: Gold finish at 4.00µin (0.100µm) thickness
• Physical Dimensions: Height above board of 0.138" (3.50mm) and 4mm mated stacking height
• Functional Features: Ground Plate and Solder Retention

The substitute part FX10B-140P/14-SV(91) maintains identical electrical and mechanical specifications across all these parameters, differing only in packaging configuration and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The FX10B-140P/14-SV(91) is the direct functional equivalent to the FX10B-140P/14-SV(21). Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin and footprint compatibility.

The primary distinctions between these parts are:

Product Status: The FX10B-140P/14-SV(21) is obsolete, while the FX10B-140P/14-SV(91) maintains active status with Hirose Electric Co Ltd. Active status ensures ongoing availability and manufacturing support.

Regulatory Compliance: The FX10B-140P/14-SV(91) is RoHS Compliant, whereas the FX10B-140P/14-SV(21) is RoHS non-compliant. For applications subject to RoHS directives or customer requirements mandating RoHS compliance, the FX10B-140P/14-SV(91) is the appropriate selection.

Packaging Configuration: The FX10B-140P/14-SV(21) is supplied in bulk packaging, while the FX10B-140P/14-SV(91) is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes and high-volume production environments.

For new designs, production continuity, and compliance-driven applications, the FX10B-140P/14-SV(91) is the recommended selection.

Frequently Asked Questions (FAQ)

Q: Are the FX10B-140P/14-SV(21) and FX10B-140P/14-SV(91) electrically interchangeable?

A: Yes. Both parts are identical in electrical performance, contact configuration, pitch, position count, and signal integrity characteristics. They are direct functional equivalents.

Q: Can the FX10B-140P/14-SV(91) be used as a drop-in replacement for the FX10B-140P/14-SV(21) on existing PCBs?

A: Yes. The parts share identical footprints, mounting type (surface mount), and physical dimensions. No PCB redesign is required for substitution.

Q: What is the significance of the packaging difference between these parts?

A: The FX10B-140P/14-SV(21) uses bulk packaging suitable for manual handling and small-quantity applications. The FX10B-140P/14-SV(91) uses Tape & Reel (TR) packaging, which is optimized for automated pick-and-place assembly equipment and high-volume manufacturing. For production environments utilizing automated assembly, Tape & Reel packaging is standard.

Q: Why is RoHS compliance important for this connector?

A: RoHS (Restriction of Hazardous Substances) compliance is a regulatory requirement in many markets and is often mandated by customers, particularly in consumer electronics, automotive, and industrial applications. The FX10B-140P/14-SV(91) meets RoHS requirements, while the FX10B-140P/14-SV(21) does not. For applications subject to RoHS directives, the FX10B-140P/14-SV(91) is the compliant choice.

Q: Does the obsolete status of the FX10B-140P/14-SV(21) affect its performance?

A: No. Obsolete status indicates that the manufacturer has discontinued production and support for this part number. It does not reflect performance degradation. However, obsolete status creates procurement challenges, as inventory becomes limited and unavailable over time. The active FX10B-140P/14-SV(91) ensures long-term availability and manufacturing support.

Q: Are there any mechanical or dimensional differences between these parts?

A: No. Both parts have identical height above board (0.138" / 3.50mm), mated stacking height (4mm), and all other mechanical specifications. They are mechanically equivalent.