HARTING is a family-owned company founded in 1945 and is one of the world's leading manufacturers of connectors. They emphasize close links with customers and provide a 'Just-in-Time' service. Their products are designed and manufactured using the latest automated techniques, and quality control is based on a 'zero-error' philosophy.
The Harbus HM series is HARTING's 2.0 mm hard metric connector system designed for high‑speed applications such as CompactPCI and VMEbus. The catalogue introduces the series, compares it with other 2 mm systems, and outlines the typical configurations for male and female connectors on PCBs.
Technical characteristics are provided, covering contact counts, spacing, current and voltage ratings, resistance values, temperature range, mechanical forces, materials, and packaging. Guidance on press‑in installation, coding, and tooling is also included, along with a customer request form and part‑number list.
| Number of contacts | 55–220 signal, 66–308 total (incl. shield) |
|---|---|
| Working current (signal) | 1.5 A |
| Test voltage | AC 750 V min. |
| Contact resistance | 20 mΩ max. |
| Insulation resistance | 10 GΩ min. |
| Temperature range | –55 °C … +125 °C (depending on performance level) |
| Mating force | 100 N/pin max. |
| Retention force | 20 N/pin min. |
| Materials (housing) | Thermoplastic resin, glass‑fibre filled, UL 94 V‑0 |
A Harbus HM connector can have between 55 and 220 signal contacts, up to 308 contacts including shield and customized loadings.
They operate from –55 °C up to +125 °C, depending on the performance level.
The recommended finished through‑hole diameter is 0.6 mm ± 0.05 mm.