2.5mm pitch wire to board connectors is widely used. JST XH connector and JST XA connector with a secure lock. JST EH connector with the unshrouded header. Molex SPOX 2.5mm connector is popular when you use Molex products.
2.5mm Pitch Connectors
Scondar’s line of Robust, High-Density, Low-Profile Connectors
Scondar’s line of 2.5mm pitch connectors are manufactured with versatility and made reliably for high vibration environments, with a slightly taller header that is fully shrouded (can be unshrouded depending on electronic requirements), high-pressure housings and application of TPA enhancements. 2.5mm pitch connectors are more ruggedized and robust than other connectors with lower pitch values, but still maintains its properties for low-profile applications for signal and power transmission.
Scondar offers a wide variety of 2.5mm pitch connectors for wire-to-board solutions that fit the specs of branded and well-known electronic connectors such as JST XH, XA, EH, Dupont, JAE IL-G and Molex SPOX connector. Customers may also be guided on wire harness and custom cable assemblies solutions too.
JST XH Connector
The XH connector was based on the leading NH series connectors. This connector is made small for low-profile applications, with a mounting height of 9.8mm and width of 5.75 mm for top entry through hole configuration. Side entry is about 14.3 mm in width with a height of 6.1mm. It is also available for SMT.
The bossed pin header is equipped with a box-shaped shroud, a wrapper of thin plastic guide box good for preventing cable connection mishaps and is also good for providing guidance for the mating connector. This connector is equipped with a polarized design and crimp-style lock and is rated at 3A AC/DC accommodating #22-#28 AWG with 2 through 16 positions.
JST XA Connector
XA is JST’s tough electronic connector for PCB wire-to-board applications equipped with vertical headers, a polarized boss, an insertion guide mechanism, a special material which prevents solder cracks and with a straight friction lock ensuring secure mating and retention.
Housings are made from red UL 94V-0, which holds a well-balanced property of high strength, high rigidity, high toughness, abrasion resistance and good surface, making it the best choice for automotive and electrical/electronic industries.
XH Series is made compact with only a side-entry height of 8.1mm with a width of 15.1mm. A top-entry configuration consumes about 11.3 by 6.9mm. This connector is available in SMT or through hole, delivering a good 3.0A AC/DC current with 2 through 16 positions, accepting a range of 22 AWG to 28 AWG.
JST EH Connector
JST EH connectors are top-of-the-line connectors for high-density applications of internal wires to PC boards. It is designed to be the thinnest and most compact 2.5 mm pitch connector with only a height of 8.1mm and 3.8mm width. with a shrouded header on the radial type.
Headers are completely polarized and shrouded (for the radial type). This connector delivers about 3.0A AC/DC current with 2 through 16 positions, accepting a range of 22 AWG to 28 AWG.
Dupont 2.5 Pitch Connector
Dupont 2.5 mm Pitch connector is a low profile connector delivering 3.0A current for AWG #22 to #28, available in 2 to 16 positions suitable for either power transmission systems or chassis wiring. Scondar offers a crimp style lock and a configuration which prevents users from inverted insertion.
Dupont 2.5 connector is has a flexible terminal strip and board stackers for stacking. It is available as either with a shrouded or unshrouded header, with configurations for through-hole, SMT or mixed technology and press fit. It is also available for either vertical, perpendicular or coplanar mating and offered in a wide variety of standard options such as polarization, locking clips and alignment pins.
JAE IL-G Connector
The 2.5 mm JST IL-G connector series is a compact component delivering dependable service in requirements for high density connection to printed circuit boards. It is specifically designed for harsh environments which are frequently subjected to heat and vibration such as in heavy equipment vehicles and batteries.
Delivering up to a current rating of 3.0 A and 250 V, it is applicable for AWG 22-28. It is enclosed in crimp-style lock and a completely polarized configuration which prevents users from inverted insertion and is available in 2 to 16 positions.
Molex SPOX Connector
Scondar’s Molex SPOX of wire-to-board and wire-to-wire connectors is a reliable, compact and durable connector for power delivery and power distribution requiring a huge amount of flexibility.“SPOX” is a name which originates from the shape of its terminal that is like a spring box, which provides multiple points of contact and protects the mating interface area, preventing fish-hooking and wire mishaps.
The 2.5 mm pitch SPOX is available in 2-16 positions, dissipating 2A for AWG #22 – #30 and has a box-style terminal, polarized design, friction locks, kinked tail options and crimp and IDT housings, meeting a variety of design needs.
Components of 2.5 mm Connectors
The connector housing provides electrical insulation between the contacts and between the contact and the external circuit. Dielectric Withstand Voltage (DWV) usually verifies the voltage rating of the connector.
A well-designed housing holds the connector contacts providing trouble-free mating and unmating. Spacing between the contacts is also fixed by the housing. Creep (electrical tracking distance over surfaces) and clearance (linear “line‐of‐sight” distance) is also maintained by the housing.
The housing is smartly engineered to allow efficient signal and power transmissions and at the same time, provide some level of environmental protection to the electrical contacts.
Scondar manufactures the housing from Nylon 66, which is a material highly used when high mechanical strength, rigidity, stability is needed under varying temperature changes. That is why all Scondar connectors can withstand a wide temperature range from between -35 deg C to 85 deg C.
Furthermore, the housing is molded in UL94V0 natural ivory and is RoHS compliant, which has passed the flammability test for electronics and as such, the connectors produced by Scondar are ideal in rugged electronic devices, sustaining high environmental stresses. Also, the housing may be available with or without protrusions, depending on customer needs and specifications.
The header contact is made up of copper alloy, tin plated over a phosphor bronze material.
Scondar’s connector terminals are made of tin-plated, phosphor bronze. The terminals have a thickness range of 0.12mm-0.15mm depending on the 2.5 mm connector type and standard reels are 20,000 pieces per reel.
Tin-plating is less costly and generally for applications carrying more than 0.5A, where high cycling is specified.
Phosphor bronze is stronger than brass and has better spring properties that lends itself useful in smaller contacts that can best leverage its mechanical properties. This material is commonly found in small and medium‐pitch signal and moderate‐power connectors.
Quality Assurance of Components
How Scondar makes 100% Reliable and Compatible Connectors
Quality is at the heart of Scondar’s standards where facilities are UL & ISO 9001:2008 certified. Scondar ensures materials and components always meet their needs with UL file number and ISO certification.
Assemblies are 100% tested guaranteeing reliability and compliance, a variety of appropriate tests are applied depending on cable assembly type. Examples are: Short or open circuit, intermittent circuit, mis–wiring. Hi-Pot, static load for strain relief, bending test, crimp pull off force, contact to housing retention force and plastic hardness.
Individual discrete wires are stripped of insulation, crimped and then inserted into female housing to complete the assembly. The completed assembly mates with a male PCB header, which offers options for locking, latching and polarised connectors.
Wiring Harness/Cable Assembly
In many cases, a wire harness or cable assembly is needed to compress masses of wires stretching over a distance. By binding these wires into cable assemblies, these cables can be better secured against the adverse effects of vibrations, abrasions, and moisture.
Scondar’s wires are produced into a non-flexing bundle, for space optimization and safety purposes, where installation time can be decreased and the process of installing electronic circuits in standardized. Their positive locking latch provides only a slight increase in disengagement force of the terminals.
Blind-mating solutions implemented in the connectors allow engagement of the connector system without visual alignment. Scondar connector series has a heavy-duty, shrouded design providing positive polarization to aid in blind mating applications. Scondar meets close adherence to the connector system specifications for blind-mating solutions for a more efficient connecting system and interference capability.
For 2.5 mm connectors, wire gauges that can be accommodated with the rated current and voltage is between AWG #22-28. The following table represents the specs of these wire gauges
|AWG||Conductor Diameter in mm||Conductor Cross Section mm2||Maximum amps for chassis wiring||Maximum amps for power transmission|