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Contact Pitch:                                                               1.25mm

No. of Contacts:                                                             2 to 16 positions

Current:                                                                         1A (AWG #28 to #32)

Compatible:                                                                  Cross Molex 51021 Connector Serie

Voltage Rating:                                                              150V

Temperature Range:                                                      -20°C~+85°C

Contact Resistance:                                                      20m Omega Max

Insulation Resistance:                                                   100M Omega Min

Withstanding Voltage:                                                    500V AC/minute

Molex Series Connectors 1.25mm Pitch

1.25mm Pitch Connectors

1>One thing about 2.0 mm pitch connectors is that they are widely used in the industry and very commonly seen in consumer electronics especially in laptops and VGA card fans, giving a current rating of 1.0 amperes. However, the 2.0 mm pitch connector is not as compact as the 1.25 pitch connector which gives the same amount of amperage and voltage. For space-saving requirements, the 1.25mm pitch connector is preferred, reducing about 45% PCB of space consumption compared with 2mm pitch connectors.

2>Enclosing the 2mm pitch connector is a crimp-style lock designed by STC and a special configuration that prevents users from inverted insertion.

3>Like the 0.8mm and 1.0mm pitch connectors, the 1.25mm pitch connector is also suitable for densely crowded electronic devices due to its small diameter wirings and lightweight design.

4>Delivers up to a current rating of 1.0 A per contact for American Wire Gage (AWG) #26, #27, #28, #29,#30, #31, and #32

Offers Design Flexibility in a Variety of Configurations

STC offers a variety of 1.25 Pitch connectors with different models and in various dimensions, with top or side entry configurations that might suit your specific needs.

Over-molded Shell Feature Designed for High Density, High-Speed Harness

As compared with the Molex 1.25mm Panel Mate, the 1.25mm Pico-Blade is manufactured with higher infill housing suitable for high-density and crowded applications, withstanding higher strain and mechanical stress.

Variation in the Number of Circuits

In addition to the above flexibility in configurations of the 1.25mm pitch connector, STC also offers this connector with a different number of circuits ranging from 2 to 17 which might suit your specific needs.

Durable Product Design

No alloy was used in fastening the wires to the board but the use of a crimping method, which made it more flexible and mechanically stronger. The crimps are well-engineered to be air-tight, preventing oxygen and moisture from reaching the metals and causing corrosion. Thus, the connector can be easily removed from the head without holding the wires. Furthermore, it prevents the cables from being easily disconnected due to entangled routing, heavy loads, or vibration

Robust Terminal

Reliable electrical connection, even under conditions of low current and low voltage, is guaranteed with its two-point contact design.

Optimized Safety Feature for Electrical Shock Hazard

With its improved product enhancement, the connector has the capability of withstanding a voltage of 500 V AC per minute, which means that the insulation is sufficient to protect the user from electrical shock, overheating, and fire.

Material and Finish

The header contact is made up of copper alloy, tin plated over a phosphor bronze material.

The housing is made of Nylon66 UL94V-0 natural ivory. These housings are available with or without protrusions.

The wafer is made up of Nylon66/46 UL94V-0.

The solder tabs are made up of brass, copper undercoated, or tin-plated. These two solder tabs ensure the retention of a header to PCB connection and act as a strain relief for the SMT solder tails minimizing the chance of solder joints breakage.

Temperature range, insulation, and contact resistance

A special feature of the 1.25mm pitch connector is it can withstand lower temperature settings than the 0.8mm pitch connector and 1.0mm pitch connector which makes it more suitable for equipment that experiences a wide range of temperature differences. The temperature range for this connector is -40 degrees centigrade to +85 degrees centigrade.

This range is based on the rise of temperature with increasing current.

Insulation resistance and contact resistance are 100 M Omega per minute minimum and 20M Omega maximum, respectively.

Applicable in Chassis Wiring and Power Transmission Wiring

The 1.25mm Pitch Connector can be used for AC and DC operations with a rated current of 1.0 amperes and 50 Volts. It is applicable in both chassis wiring and power transmission wiring with a maximum amperage of 1.0 amp and 0.36 Amp, respectively.

Superfine wires are usable

The connector can be used with the wires of AWG within the range of #26 to #32. This applies to wire diameters as small as 0.22mm to 0.4mm. Superfine wires such as these can help the routing job.

Shrouded Header

The pin header of the connector is wrapped with a thin plastic guide box around it good for preventing cable connection mishaps and it also provides good guidance for the mating connector.

Twin U-slot section

The Twin U-slot section or twin-axial cable has a pair of insulated conductors where the conductors run parallel with one another. This is commonly used in high-speed balanced-mode multiplexed transmission in large computer systems, in which the signals are carried by both conductors in a U-shaped configuration. This ensures reliable connection and provides greater noise immunity.

Fits Microelectronics Systems

1.25 mm pitch serves as the best choice for densely crowded electronics systems for its small, square-edged configuration, and ruggedized, and shock-resistant feature.

Caters Power, Signal, and Grounding Contact Needs

The 1.25 mm Pitch connector can either stand as power contacts, signal contacts, or both as power and signal contacts or a signal and grounding contact. The wiring harness interconnects the PCB to various components that send signals and power to other electronic devices.

Safe and Reliable

1.25mm pitch connectors ensure safety, system protection, and performance with its bonded metallic conduits and multiple grounding points preventing fire hazards, component damage, overheating, and possible electrocution.

The product does not contain restricted chemicals in concentrations not comply with ROHS standards. Thus, for its components, the products can be worked upon at high temperatures required by lead-free soldering.

Majority of Consumer Electronics

1.25 mm Pitch Connector finds its advantage in devices such as Multi-function/printer office machines, gaming electronics, Imaging and digital cameras, security systems, VCRs, PDAs, computers, notebooks, speakers, and LED televisions.

Automotive Industry

Driving requires not only the physical coordination of your hands and thoughts but also high-quality automotive parts that are fine-tuned and in good condition. The combination switch is one thing because it allows you to turn the headlights on and off, maneuver the headlight beam function and turn signal lights on.

STC offers a 1.25mm pitch wire to board connector used in the combination switch and other automotive components such as the following:

--shifters

--steering

--instrument panels

Testing Equipment

Testing equipment is often used for quality control of products, experimentation, and R&D.

STC provides 1.25mm pitch connectors for the following testing equipment:

--multimeters

--ohmmeter

--voltmeter

--laboratory testing equipment