SCONDAR SCT1501WRS – 1.5 mm Pitch SMD Right‑Angle Header, Compatible with JST ZH Series (SxxB‑ZR‑SM4A‑TF)

Introduction

The 1.5 mm pitch wire‑to‑board connector family is a compact solution widely used in space‑constrained electronics, from portable consumer devices to LED lighting and sensors. JST’s ZH series offers a surface‑mount right‑angle version (SxxB‑ZR‑SM4A‑TF) that enables parallel PCB connections with a low profile. The SCONDAR SCT1501WRS is an SMD right‑angle header designed as a direct mechanical and electrical alternative to this series. When paired with compatible crimp housings (such as SCONDAR SCT1501H or JST ZHR‑xx) and terminals (SCT1501T or JST SZH), it delivers space‑saving, reliable wire‑to‑board interconnections with full automated assembly support.

Direct Compatibility with JST SxxB‑ZR‑SM4A‑TF Series

The SCT1501WRS is a form‑fit‑function compatible replacement for the JST SxxB‑ZR‑SM4A‑TF SMD right‑angle header. It shares the same 1.5 mm pitch, identical pin counts (available from 2 to 15 positions, with common configurations from 2 to 11 positions as shown in the ordering table), PCB mounting footprint, and mating interface. When used with standard ZH‑series housings and terminals, the SCT1501WRS enables seamless integration into existing designs without requalification or PCB layout changes.

Key Specifications

Low‑Profile and Space‑Saving Design

The right‑angle orientation of the SCT1501WRS allows the mating cable to run parallel to the PCB surface, significantly reducing the overall height of the mated connector assembly. This makes the header ideal for applications where vertical clearance is extremely limited – such as flat panel edges, portable devices, and slim enclosures. The header is optimized for use with the ZH platform’s 5.9 mm mounting height and 3.5 mm depth when mated with a top‑entry housing.

Fully Shrouded Header for Durability and Secure Connection

The SCT1501WRS features a fully shrouded (box‑style) header design. The shroud surrounds and protects the pin terminals, providing:

• Durability – The shroud prevents pins from being bent or damaged during handling, shipping, or mating.

• Secure connection – The shroud guides the mating housing into correct alignment, reducing the risk of mis‑insertion.

• Stress reduction – The reinforced housing minimizes stress on the solder joints when the connector is subjected to side loads or vibration.

Stable Contact Performance

The SCT1501WRS uses round, solid pins with a tin‑plated brass finish. When mated with a housing that provides high contact force (such as the SCT1501H with its lance‑retained terminal), the combination ensures stable, low‑resistance connections. The maximum contact resistance is specified at 20 mΩ, guaranteeing reliable signal integrity in low‑voltage, low‑current circuits.

Compatibility with Housing Lance System

The SCT1501WRS is designed to work seamlessly with housings that feature a housing lanceretention system (like the SCONDAR SCT1501H or JST ZHR series). The lance engages with the terminal inside the housing, improving contact insertion workability and providing secure terminal retention. The round pin geometry complements the lance system by allowing smooth insertion and withdrawal while maintaining high normal force.

Material Selection for SMT Reliability

The SCT1501WRS is built with materials specifically chosen for surface‑mount assembly:

• Housing: Nylon 9T (PA9T) with UL94V‑0 – PA9T is a high‑temperature thermoplastic designed for reflow soldering. It withstands peak temperatures up to 260°C without deformation, exhibits low moisture absorption, and provides excellent dimensional stability. The beige color aids automated optical inspection.

• Contacts: Brass with tin plating – Tin‑plated brass ensures good solderability to PCB pads and provides reliable conductivity and corrosion protection for standard environments.

Designed for Automated Assembly (Pick & Place Compatible)

The SCT1501WRS is engineered for high‑volume SMT production:

• Vacuum pick‑and‑place compatible – The flat top surface of the right‑angle header provides a reliable area for vacuum nozzles.

• Tape & Reel packaging (Code 1) – Supplied in embossed tape for use with high‑speed automatic mounters, matching the JST SxxB‑ZR‑SM4A‑TF series’ packaging.

• Tube packaging (Code 2) – Available as an alternative for hand assembly or existing tube‑fed processes.

• Reflow solder compatible – The PA9T housing and tin‑plated contacts are optimized for lead‑free reflow soldering.

Ordering Information

The SCT1501WRS is available in a range of pin counts. The ordering code follows the structure:

SCT1501WRS – [No. of Pins] E [Package] BE 102

For exact housing dimensions (A and B lengths) for each pin count, please refer to the official SCONDAR SCT1501WRS datasheet.

Application Areas

The SCONDAR SCT1501WRS is ideal for applications that originally use the JST SxxB‑ZR‑SM4A‑TF series, including:

• Consumer electronics – Portable audio devices, digital cameras, handheld game consoles

• Small appliances – Coffee makers, air purifiers, smart speakers

• Industrial controls – Sensor interfaces, compact control boards

• LED lighting – Strip lighting, driver modules, backlighting

• Medical devices – Portable diagnostic equipment (non‑critical)

• Battery management – Small consumer battery packs

Why Choose SCONDAR SCT1501WRS?

• Direct replacement for JST SxxB‑ZR‑SM4A‑TF – identical pitch, footprint, and mating interface

• Right‑angle SMD orientation – ideal for low‑profile, space‑constrained designs

• Fully shrouded header – provides durability, secure mating, and pin protection

• Stable contact performance – 20 mΩ max contact resistance with round pins

• High‑temperature material – PA9T (UL94V‑0) for reflow soldering reliability

• Tin‑plated brass contacts – good solderability and conductivity

• Automation ready – tape & reel packaging, pick‑and‑place compatible

• Cost‑effective – shorter lead times, flexible MOQ, dual packaging options

• RoHS compliant – manufactured under strict quality control

Conclusion

The SCONDAR SCT1501WRS SMD right‑angle header offers a reliable, high‑performance alternative to the JST SxxB‑ZR‑SM4A‑TF series for 1.5 mm pitch wire‑to‑board connections. With its space‑saving right‑angle design, fully shrouded construction, stable contact performance, PA9T housing, and full support for automated SMT assembly, it meets the demands of modern compact electronic designs. Whether you are developing a new product or seeking a qualified second source, the SCT1501WRS delivers compatibility, reliability, and value.