ISO 8092-1:1996

Overview

ISO 8092-1:1996 - "Road vehicles - Connections for on-board electrical wiring harnesses - Part 1: Tabs for single-pole connections" defines the dimensions and specific requirements for tabs used in single‑pole automotive connectors. It covers the tab geometries that mate with female contacts used in on‑board wiring harnesses and applies to connectors that may be disconnected after vehicle installation for repair or maintenance.

Key topics and technical requirements

• Tab dimensions and sizes: Standardised tab profiles (examples include 2.8 × 0.5, 4.8 × 0.5, 4.8 × 0.3, 6.3 × 0.8 and 9.5 × 1.2 mm) with specified tolerances and functional contact lengths.
• Tab types: Tabs can be without shoulder, with one or two shoulders, and with or without detent (positive locking); designation codes indicate shoulder count and detent type.
• Design details:
  • Chamfers and bevels on tab edges are specified to assure reliable mating.
  • Usable contact area must be defined when tabs are stamped/form‑formed; retention features must not intrude into the functional engagement length.
  • Tabs without detent require external retention on the mating part.
• Performance requirements:
  • Specified connection (insertion) and disconnection (withdrawal) force limits to ensure serviceability and safe mating.
  • Connection resistance limits and endurance criteria (see table references in the standard).
  • Compliance with test methods and general performance requirements referenced in ISO 8092-2.
• Informative annex: Annex A provides example female contact forms and reference dimensions; other compatible designs that meet ISO 8092-2 performance requirements are acceptable.

Applications and users

• Primary users:
  • Automotive connector designers and manufacturers
  • Wiring harness OEMs and tier‑1 suppliers
  • Vehicle electrical/electronic engineers responsible for serviceable connections
  • Test labs performing connector qualification
• Practical applications:
  • Specifying tab geometry for plugs and terminals in on‑board wiring harnesses
  • Ensuring interchangeability between connectors and female contacts
  • Defining acceptance criteria for insertion/removal forces and contact resistance for repairable connector interfaces
  • Supporting supplier and in‑house quality control, procurement, and maintenance documentation

Related standards

• ISO 8092-2:1996 - Definitions, test methods and general performance requirements (normative reference for testing and performance).
• Other parts of the series: ISO 8092-3 (tabs for multi‑pole), ISO 8092-4 (pins for single/multi‑pole).

Keywords: ISO 8092-1, road vehicles, single-pole connectors, tab dimensions, automotive wiring harness, connector design, connection force, contact resistance.