SCONDAR SCT1501H – Low‑Profile 1.5 mm Pitch Wire‑to‑Board Housing, Compatible with JST ZH Series (ZHR‑xx)

Introduction

The 1.5 mm pitch wire‑to‑board connector family is widely used in compact electronic devices where board space is at a premium. JST’s ZH series has long been a popular choice, known for its low mounting height, space‑saving design, and reliable contact performance. The SCONDAR SCT1501H is a single row housing that offers full mechanical and electrical compatibility with the JST ZHR‑xx series. Designed for use with 1.5 mm pitch headers and crimp terminals, it provides a cost‑effective, reliable alternative for applications requiring a low profile, secure connection, and stable contact performance.

Direct Compatibility with JST ZHR‑xx Series

The SCT1501H is a form‑fit‑function compatible replacement for the JST ZHR‑xx housing. It shares the same 1.5 mm pitch, identical pin counts (available from 2 to 15 positions, or as required), mating interface, and housing dimensions. When paired with compatible 1.5 mm pitch vertical or right‑angle headers (such as SCONDAR SCT1501WV/WR series) and appropriate crimp terminals (e.g., SCONDAR SCT1501T series, compatible with JST ZH terminals), the SCT1501H enables seamless integration into existing ZH‑based designs without requalification or PCB layout changes.

Key Specifications

Low‑Profile and Space‑Saving Design

When mated with a top‑entry type through‑hole header, the SCT1501H contributes to a compact interconnect solution with a mounting height of approximately 5.9 mm and a depth of about 3.5 mm after mating. This low‑profile design makes the connector ideal for space‑constrained applications such as portable consumer electronics, small sensors, and LED lighting modules.

Housing Lance System for Easy Contact Insertion

The SCT1501H features an integral housing lance (retention lance) that secures the crimp terminal inside the housing once inserted. This lance design provides several benefits:

• Improved contact insertion workability – Contacts slide smoothly into the housing and click into place with tactile feedback, reducing assembly time and operator fatigue.

• Secure terminal retention – The lance engages positively with the terminal, preventing pull‑out due to wire tugging or vibration.

• Easy terminal removal – When necessary, a small tool can release the lance for contact extraction, simplifying rework.

Stable Contact Performance

The SCT1501H is designed to be used with round pin headers. The combination of high contact force from the terminal and the round pin geometry ensures stable, low‑resistance connections even under vibration or temperature cycling. The 20 mΩ maximum contact resistance guarantees reliable signal integrity in low‑voltage, low‑current applications.

Fully Shrouded Header Compatibility

When mated with a fully shrouded header (such as SCONDAR SCT1501WV series or JST BxxB‑ZR headers), the SCT1501H benefits from the header’s box‑style shroud. This shroud:

• Ensures durability by protecting the terminal pins from damage

• Provides a secure connection with polarization features

• Reduces the risk of stress and misalignment during mating

The SCT1501H is also compatible with IDC type sockets of the ZR connector family, offering flexibility for different wire termination methods.

Material and Construction

The housing is molded from Nylon 66 (PA66) with a UL94V‑0 flame rating, providing good mechanical strength, heat resistance, and dimensional stability. The white color offers high contrast for easy visual inspection and automated optical inspection (AOI).

The housing accepts crimp terminals suitable for 26 AWG to 32 AWG wires (insulation diameter not specified – refer to terminal datasheet for exact range). This wire range covers the most common gauges used in compact electronic devices.

Application Areas

The SCONDAR SCT1501H is ideal for applications that originally use the JST ZH series, including:

• Consumer electronics – Portable audio players, digital cameras, handheld gaming devices

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

• Industrial sensors – Proximity sensors, temperature/humidity modules

• LED lighting – Strip lighting connections, driver boards

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

• Battery management – Small battery packs for consumer products

Why Choose SCONDAR SCT1501H?

• Direct replacement for JST ZHR‑xx series – identical pitch, footprint, and mating interface

• Low‑profile design – mating height ~5.9 mm, depth ~3.5 mm

• Housing lance system – secure terminal retention and easy insertion

• Stable contact performance – 20 mΩ max contact resistance with round pin headers

• Fully shrouded header compatible – added durability and misalignment protection

• Wide wire range – accepts 26–32 AWG

• Nylon 66 UL94V‑0 housing – flame retardant, white color for easy inspection

• Cost‑effective – shorter lead times, flexible MOQ

• RoHS compliant – manufactured under strict quality control

Conclusion

The SCONDAR SCT1501H housing offers a reliable, cost‑effective alternative to the JST ZHR‑xx series for 1.5 mm pitch wire‑to‑board connections. With its low profile, housing lance system, stable contact performance, and compatibility with fully shrouded headers, it meets the demands of space‑constrained electronic designs. Whether you are designing a new product or seeking a qualified second source, the SCT1501H delivers compatibility, reliability, and value.