SCONDAR SCT12580WVS‑2x – High‑Density Dual Row SMD Vertical Header, Fully Compatible with JST GHD Series (BMxxB‑GHDS‑TF)

Introduction

Flat‑panel TVs, AV equipment, and other consumer electronics demand ever‑higher mounting densities on PCBs. The 1.25 mm pitch double‑row connector family has emerged as a key solution, offering a compact footprint combined with excellent operability despite its small size. The SCONDAR SCT12580WVS‑2x is a dual row surface‑mount (SMD) vertical header designed specifically for such high‑density applications. Fully compatible with the JST GHD series(specifically the BMxxB‑GHDS‑TF SMT vertical receptacle headers), it provides a reliable, cost‑effective alternative for wire‑to‑board interconnections requiring secure locking, low insertion force, and automated assembly readiness.

Direct Compatibility with JST BMxxB‑GHDS‑TF Series

The SCT12580WVS‑2x is a form‑fit‑function compatible replacement for the JST BMxxB‑GHDS‑TF dual row SMD vertical headers. It shares the same 1.25 mm pitch, identical pin counts (from 2×5 to 2×20 – 10 to 40 contacts), compatible mating interface, and PCB mounting footprint. When paired with standard GHD‑compatible crimp housings (such as SCONDAR SCT12580H‑2x series or JST GHDR‑xxV‑S‑1) and appropriate crimp terminals (e.g., SCONDAR SCT12580T or JST SGHD terminal), the SCT12580WVS‑2x enables seamless integration into existing GHD‑based designs without requalification or PCB layout changes.

Key Specifications 

The extended upper temperature rating of +105°C and the use of LCP housing make this header suitable for reflow soldering processes and reliable operation in warm environments such as flat‑panel displays and AV equipment.

Designed for High‑Density Board Mounting

The SCT12580WVS‑2x adopts a double‑row configuration that maximizes contact density while minimizing PCB space usage. Compared to a single row 1.25 mm pitch header, the dual row design achieves a significantly higher number of contacts per unit area – a critical advantage in space‑constrained products like flat‑panel TVs, set‑top boxes, and portable AV devices.

The header is a vertical (straight) SMD type, standing upright on the PCB. When mounted, its low profile contributes to slim product designs, while the surface‑mount termination provides a clean, solder‑joint‑reliable connection.

Robust Mechanical Features Despite Miniature Size

Despite its compact dimensions, the SCT12580WVS‑2x incorporates several key features inherited from the GHD platform to ensure reliable operation and excellent user experience:

• Secure lock device – An integral locking mechanism on the header engages with the mating housing’s lock, providing a positive, tactile click when fully mated. This prevents accidental disengagement due to vibration or handling, ensuring a stable connection in portable and fixed equipment.

• Low insertion force – The header pin geometry and housing design are optimized to reduce the force required to mate with the socket housing. This improves assembly efficiency and reduces operator fatigue during manual or semi‑automatic mating.

• Prevention of contact deformation – The header features a protective shroud and precise pin alignment that prevents stubbing or bending of the contacts when mating with the housing. This is especially important in high‑pin‑count connectors where misalignment could cause damage.

• Suction area for picking up – The top surface of the header provides a flat, unobstructed area compatible with vacuum pick‑and‑place nozzles. This allows the SCT12580WVS‑2x to be automatically picked, placed, and soldered onto the PCB in high‑volume SMT assembly lines.

Material Selection for SMT Reliability

The SCT12580WVS‑2x is built with materials specifically selected for surface‑mount assembly and long‑term reliability:

• Housing: LCP (Liquid Crystal Polymer) with UL94V‑0 – LCP is a high‑temperature thermoplastic designed for reflow soldering processes. It withstands peak temperatures up to 260°C without deformation, exhibits low moisture absorption, and provides excellent dimensional stability. The beige color offers good contrast for automated optical inspection (AOI).

• Contacts: Brass with gold plating – Gold‑plated contacts ensure low and stable contact resistance (30 mΩ max), excellent corrosion resistance, and reliable signal integrity even in low‑voltage, low‑current circuits. Gold plating also supports multiple mating cycles.

• Solder tabs: Brass with tin plating – The surface‑mount solder tabs (retention fittings) are made of brass with a tin‑plated finish, providing good solder wetting and strong mechanical retention to the PCB. These metal fittings also help prevent solder peeling under mechanical stress or thermal cycling, a feature highlighted in the GHD series.

Designed for Automated Assembly

The SCT12580WVS‑2x is engineered for seamless integration into high‑volume SMT production lines:

• Vacuum pick‑and‑place compatible – The flat suction area on the top of the housing enables reliable pickup by automatic placement equipment.

• Embossed tape packaging – The header is supplied in tape‑and‑reel format (standard for SMT components), compatible with high‑speed automatic mounters. (Custom tube packaging may be available upon request.)

• Reflow solder compatible – The LCP housing and tin‑plated solder tabs are optimized for lead‑free reflow soldering processes, ensuring consistent solder joint quality.

Application Areas

Thanks to its high density, secure locking, wide temperature range, and automated assembly readiness, the SCONDAR SCT12580WVS‑2x is ideal for:

• Flat‑panel TVs and displays – Internal signal and power connections between main boards, timing control boards, and source driver boards

• AV equipment – DVD/Blu‑ray players, home theater systems, soundbars, set‑top boxes

• Computer peripherals – Printers, scanners, monitors

• Industrial controls – Compact PLCs, human‑machine interfaces (HMIs), sensor hubs

• Medical equipment – Diagnostic devices, patient monitors (non‑critical)

• Automotive infotainment – Navigation units, audio systems (non‑safety critical)

Why Choose SCONDAR SCT12580WVS‑2x?

• True drop‑in replacement for JST BMxxB‑GHDS‑TF series – identical 1.25 mm pitch, dual row pin counts (2×05 to 2×20), and mating interface

• Secure lock device – positive locking prevents accidental unmating

• Low insertion force – improves assembly efficiency and user experience

• Contact deformation prevention – protects header pins during mating

• Suction area for pick‑up – fully compatible with automated SMT assembly

• High‑temperature LCP housing – UL94V‑0, reflow solder compatible

• Gold‑plated contacts – low and stable contact resistance (30 mΩ max)

• Tin‑plated solder tabs – strong PCB retention, prevents solder peeling

• Wide operating temperature (-25°C to +105°C) – suitable for high‑ambient‑heat environments

• Cost‑effective – shorter lead times, flexible MOQ, competitive pricing

• RoHS compliant – manufactured under strict quality control

Conclusion

The SCONDAR SCT12580WVS‑2x dual row SMD vertical header delivers a reliable, high‑performance alternative to the JST GHD series (BMxxB‑GHDS‑TF). With matching 1.25 mm pitch, full pin count range from 2×05 to 2×20, secure locking, low insertion force, contact deformation prevention, a vacuum pick‑up area, and robust LCP/gold‑plated construction, it meets the demanding requirements of high‑density board mounting in flat‑panel TVs, AV equipment, and beyond. Whether you are designing a new product or seeking a qualified second source, the SCT12580WVS‑2x offers compatibility, reliability, and value.