Part Number: 281934-2

Manufacturer: TE Connectivity

Description: Automotive Connectors SINGLE WIRE SEAL

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Technical Specifications of 281934-2

Datasheet  281934-2 datasheet
Category Connectors, Interconnects
Family Rectangular Connectors – Accessories
Manufacturer TE-Connectivity-AMP-Connectors
Series Superseal
Accessory Type Seal
Number of Positions 1
For Use With/Related Products

281934-2 Description

To fulfill the ever-increasing needs and requirements for safety and dependability in the field of electrical connection, the 281934-2 connector standard was developed. These connections satisfy the requirements outlined in the numerous automotive and industrial standards. Typical applications include a wide variety of automobile sensor devices, oil pressure senders, water temperature monitoring, and any other application that requires waterproof protection to IP67 standards.

281934-2 Features and Benefits

  • It has contacts that are both sturdy and dependable.
  • Because it includes a Secondary lock, it guarantees that the contact will be inserted correctly and completely.
  • Seals have been made out of silicone rubber.

What Do You Need To Know About These Connection Systems

What Do You Need To Know About These Connection Systems

To help the reader and user grasp common phrasing, give some technical background, and boost your curiosity about this fascinating world of connection systems, we would like to share some basic facts that we have collected about Connection Systems in the following. Connection systems and related issues are fundamental science at their very best. Therefore, we will try our best to provide you with the most beneficial and uncomplicated introduction possible to the fundamental components, their respective wordings, and their functions.


In the electrical industry, connectors are often used to join or separate wires. They facilitate the attachment and detachment of prefabricated devices and components from the specified wiring harness. When two connectors are mated, they form a connecting system. Male terminals/pins on one end, female on the other. Metal stamped terminals are the most common type of terminal made, and they can be found in various shapes and coating options. Terminals (male and female) that securely fit together ensure a reliable electrical connection between the ends. In this case, the connector housing is the insulator.

However, what distinguishes an automotive connection system from a system used in industry or telecommunications?

Characteristics of Automotive Connection Systems

Unlike in other industries, automotive connection systems must adhere to stringent technical dependability standards defined by Original Equipment Manufacturers (OEMs) like General Motors and Volkswagen. Connection systems need to be connectable and disconnectable in harsh working conditions, including exposure to various environmental factors typical of a vehicle’s interior.

Producers’ primary responsibilities to growing numbers of connection systems per vehicle are to invent systems with extremely high functionality and a zero-percent malfunction rate. This manufacturing standard also applies to pre-owned terminals, which frees up a wide range of niche technological options for this sector.

Types of Connection Systems

Connection systems can be broken down into three categories, depending on the nature of the connections being made:

Wire-to-wire Connection

Each end of a male connector is “filled” with terminals, and the female connector is “filled” with a male connector, creating this form of connection. Consequently, you’ll have a connectable harness component. This type of connection is typically used to connect and disconnect a single, low-power application (such as an electronic window raise) from the vehicle’s primary power distribution system or a separate, supplementary power distribution system.

Board-to-wire Connection

A connection can be permanently fastened to a conductor board using this connection mechanism. The male connector, also known as a “PCB Header,” is often soldered directly to the circuit board. Male connector on connector connects female terminals to electrical harness. Connecting the engine control unit to the power harness is a common example of a Board-to-Wire connection.

Device Connections

This gadget already has the mating component on its whole. Female connectors appropriate for a given application make up most of a device’s mating parts. In most circumstances, it is not possible to purchase assembled male connectors. For most developers, trying and constructing connection mechanisms for testing is quite irritating.

The Components of Connection Systems and their functionality

The general components of connection systems, their wordings, and their roles in all connection systems are listed below.

Connector housing

The connector housing carries the pins or terminals. Its form ensures a secure connection with the specified mating part and is constructed of insulating plastic. The design distinguishes between sealed and unsealed connection methods and male and female connections. A radial sealing is typically present in a sealed connection system to shield the electrical system from the effects of water or dirt. The location of this is between the male and female connectors.

Numerous connectors are produced in different codings to prevent incorrect connections. Several notches inside the connector frequently realize a connection’s coding. These coded connectors made by Delphi Connection Systems are straightforward to use, even for those new to the industry. The notches are typically marked with different colors since they are not immediately obvious.

Single Wire Seal

Single Wire Seals enclose the single conductor and protect the cavity from the elements. In a single operation, seals are crimped to the terminal and the cable and placed into each cavity. Depending on the manufacturer and series, a seal comprises two to three sealing disks. The proportion of silicon oil used to preserve the single wire sealing varies according to the manufacturer and series.

Terminal Position Assurance (TPA)

The connector housing is primarily built by hand with the terminals. To complete a technical link, each crimped contact must be fully inserted into the connector. The use and various connection mechanisms affect the insertion force. As soon as the terminal is plugged in, you will hear a little “click” on many connection methods. A tiny click sound has been produced to prevent errors during mass production. Assembling terminals eight hours a day requires workers to make mistakes, which must be minimized to the greatest extent possible. If you consider that a worker can only make one mistake every three months, his mistake rate is less than 10 ppm (ppm stands for parts per million).


We’ve covered some background on 281934-2 connectors and other relevant information here. We anticipate that you will find it entertaining and informative. Feel free to ask any questions you may have regarding this article or any other topic on our website in the comment sections below, and we will try our best to answer them.

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