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Mechanical Ventilator System

Application:
Compact portable unit for airway ventilation and oxygen therapy.

Background:
Designed and tested for a wide range of environments including hospitals, ambulances, aircraft, outdoors and in MRI scanners, the unit is capable of ventilation during emergency or controlled transportation of adults, children and infants.

The Challenge:
Internal connections between PCBs that withstand the more extreme conditions of handling and transportation of the unit in external operations. No interruption in function can be allowed. Increased and immediate demand requirements due to COVID-19 escalation.

Harwin Solution:
Datamate male and female connectors are ideally suited for the vibration and bump conditions that can prevail in usage and transportation, without any signal disruption. Standard components with flexible UK manufacturing allowed for fast demand reactivity.

The new Gecko-MT range combines the 1.25mm pitch Gecko signal connector system with mixed technology layouts, adding 10A power contacts to the range. The smallest and lightest mixed-layout connector available for high-performance applications, Gecko is the ideal choice when SWaP matters most.

Featuring cable-to-board, board-to-board and cable-to-cable options, the initial
launch includes pin-layouts of 1+8+1 or 2+8+2 contact configurations.

Stainless steel jackscrews are available in both standard or reverse-fix, ensuring secure connection, and lightweight metal hoods give additional cable protection and shielding.

ACAS Series

Low ESR

• Feature: Low ESR, Surface mounting, Reduced height, Wide temperatur
• Suitable for DC-DC converters, voltage regulators and decoupling applica
• Rate voltage: 2~25Vdc.
• Endurance: Endurance 2000hrs at 105℃
• RoHS Compliant

Adding robustness to industrial hardware by backpotting is a cost-effective way to protect connections and prolong the lifecycle of the application.

Complex and repetitive movements, such as the ones industrial robots and factory automation equipment continuously execute, expose connectors and cabling to numerous mechanical stresses over their operational life. There will be a certain level of holding force keeping contacts in the connector housing once assembled, but this is limited.

Consequently, adequate strain relief must be provided to mitigate the effects of twisting and torsion, etc. Backpotting is regularly used in heavy-duty designs (including robotics) for strain relief purposes. Here a potting compound (normally an epoxy resin) fills the area at the rear of the cable connector to bring extra robustness to the assembly.

Backpotting can be used on many different cable connectors, once the cable assembly has been completed. However, it is easier to backpot when there is a specific area with a retaining wall that will contain the liquid whilst it sets.

Here are 5 scenarios where a backpotting solution should be considered:

1.Firstly, is there a retaining wall on the rear of the connector? If so, no extra tooling will be required to retain the compound whilst it is in a liquid form. If there is no retaining wall, then can a hood or backshell be fitted? It might be possible to fit the hood, and then completely fill up the inside of the hood assembly with the backpotting compound. This will depend on the hood design, whether it has any holes or is a close fit to the connector, and if the potting might interfere with jackscrews or other mechanical elements.

2. If there is no wall, nor a hood, then it will be necessary to build a temporary wall around the rear of the connector, to retain the compound whilst it is setting. This can be achieved with something as straightforward as standard masking tape. Once the compound has solidified, the temporary wall can be removed and the resulting backpotting will be strong enough to not require further support.

3. Are all the contacts going to be wired up? If not, it will be necessary to populate every contact, or use a dummy contact arrangement for those not populated – otherwise the liquid compound will flow out through empty holes in the housing.

4. Consider the actual design of the crimp contacts, as some contacts will have a very open design with no means of keeping the liquid compound at the rear of the contact. These designs are more common with open crimps on basic PCB connectors and are thus not suitable for backpotting.

5. Cable contacts have a certain amount of float whilst being assembled, and there is a risk of contacts getting permanently fixed at an angle. This will make wear more acute in a particular spot and increase the required insertion force – potentially leading to early failure. Therefore, Once the backpotting has been applied, and it is in the process of setting, it is vital to keep the connector mated to another connector. This will ensure that the contacts are properly aligned within the housing when the compound hardens.

Download our step-by-step guide to backpotting here.

Different epoxy resins and similar compounds all have their own requirements for use: how to mix, how to cure, what specifications it will meet once completed. But the general method of use and application is very similar across different materials.

To help with backpotting, we have produced a single-page guide to assist you, and pointed out a few considerations for the process.

Download the “Step-by-Step Guide to Backpotting” now.

For any further questions relating to this topic, please contact us.

• Smallest Size with High Performance – FASTXO Series
• High Frequency
• Any Frequencies from 1MHz to 200MHz
• Short Lead Time
• LVCMOS Output
• Phase Jitter (RMS) : 0.7ps
• Voltage Supply : 3.3V, 2.5V and 1.8V

PZ-U Type miniaturized FASTXO series product provides wide frequency range from 1MHz to 200MHz and caters to the needs of various digital applications in the market. With superior product features, PZ-U Type is the best alternative solution to high-frequency XO products.

Capable of providing any frequencies and fast delivery, PZ-U Type shortens time needed to obtain different frequency samples for test and verification during product development stage and enables customers to speed up time to mass production and product launch.

Applications : Computer servers, USB, Audio & Video, Power & Energy, Test & Measurement, Personal Computing, Storage Servers & SSD, Raid Controllers, DSL & DOCSIS, Wireless Equipment.

Pushing the boundaries on signal current carrying capabilities – 2.00mm Pitch High Reliability Datamate Connector Accessory

The T-Contact is a single-piece beryllium copper contact capable of up to 8.5A when used on 2mm pitch Datamate J-Tek. The patented design uses a 6-finger construction to improve the current-carrying capacity of the existing Datamate contact.

In response to continued cuts in military spending, the U.S. government has chosen to follow a more cost driven approach to its contract activity over recent years. This practice is commonly referred to as Lowest Price Technically Acceptable (LPTA), and critics of the practice raise concerns that decisions on products are purely based on pricing and don’t take any other criteria into account. Some are of the view that it will only encourage military contractors to cut corners to win bids, and that emphasis on maintaining quality solutions by using quality product is lost.

A .050″ pitch series, featuring the smallest Hyperboloid socket in existence, .3mm diameter

• Size options from 10-100 pins in a 2-row, staggered configuration
• Stacking options with pin guides to aid in alignment
• Built with the same materials and processes as our Mil-DTL-55302 products

Specify your HVM series connector, by pin count, gender and termination:

Elevated Performance 2mm Pitch Industrial Connectors Equipped to Take on Heavy Vibrations & Shocks

Cable-to-Board Connector Range

M225 Series is a range of high-performance cable-to-board connectors, resistant to shock and vibration, on a 2.00mm pitch. The range features a rubber locking collar and fixing pin system, providing a fast and simple strain-relief connection suited for a wide scope of industrial and other related applications.