ESQT-148-02-F-D-745 96 Position Elevated Socket Connector

ElecSuppliers Part Number GuideAug 28, 2026

When ESQT-148-02-F-D-745 appears in a PCB bill of materials, connector replacement list or component search, the part number identifies much more than a generic board connector.

ESQT-148-02-F-D-745 is a 96 position elevated socket connector from Samtec. It belongs to the ESQT series and uses a two-row configuration with a 2.00 mm mating pitch. The connector is designed for PCB interconnection and uses through-hole mounting.

For engineers and buyers, the important question is not simply whether it is a 96 position connector. The contact arrangement, pitch, mounting method, elevated socket construction, mating interface and mechanical dimensions all determine whether this exact part can be used in a particular PCB design.

What Is ESQT-148-02-F-D-745

ESQT-148-02-F-D-745 is a Samtec ESQT series elevated socket with 96 positions.

The connector has two rows and all 96 positions are loaded. Its mating pitch is 0.079 inches, equivalent to approximately 2.00 mm. It uses through-hole PCB mounting and solder termination.

The connector is categorized for board-to-board or cable interconnection, making it useful when a PCB needs a dense multi-contact interface rather than individual wires or discrete terminals.

The elevated socket configuration is particularly relevant when two boards need to be positioned at a defined distance from one another.

ESQT-148-02-F-D-745 Connector Structure

The basic structure of this connector can be understood through four characteristics.

It has 96 contacts.

It uses two rows.

The mating pitch is 2.00 mm.

It is an elevated socket designed for PCB interconnection.

Together, these characteristics define how the connector fits into a larger interconnect system.

A connector with the same number of positions but a different pitch or contact arrangement should not automatically be considered compatible.

Why the 96 Position Configuration Matters

The 96 position configuration provides a large number of electrical connections within a relatively compact connector footprint.

This can be useful in systems where a board needs to transfer multiple power, ground and signal connections through a single mating interface.

Using one multi-position connector can also simplify assembly compared with using many individual connectors.

However, the number of contacts alone does not determine compatibility.

The mating connector, pitch, contact geometry and mechanical stack height all need to be considered together.

ESQT-148-02-F-D-745 2 mm Pitch

One of the most important specifications is the 2.00 mm mating pitch.

Pitch is the center-to-center distance between adjacent contacts.

A 2.00 mm pitch provides a relatively dense arrangement of contacts while maintaining more spacing than many ultra-high-density connector systems.

For PCB designers, this dimension directly affects the footprint and the spacing between signal paths.

It also determines which mating connector families can physically connect with the part.

This is why the pitch should be confirmed before treating another connector as a possible replacement.

ESQT-148-02-F-D-745 Through Hole Mounting

ESQT-148-02-F-D-745 uses through-hole mounting.

Unlike surface mount connectors, the connector leads pass through holes in the PCB and are soldered to the board.

Through-hole mounting can provide strong mechanical attachment, which is valuable for connectors that experience repeated mating and unmating forces.

This characteristic also affects PCB manufacturing.

A board designed for this connector needs the appropriate plated through-hole pattern and mechanical footprint.

A surface mount connector with similar electrical specifications would not be a direct mechanical replacement.

Elevated Socket Design

The word elevated is important in the ESQT-148-02-F-D-745 description.

An elevated socket is designed to position the mating interface above the PCB surface.

This can help create a controlled board-to-board spacing arrangement.

In systems with multiple stacked PCBs, the connector height becomes part of the mechanical architecture.

A different connector with the same 96 positions and 2 mm pitch may still produce an incorrect board stack height.

For that reason, the mechanical height represented by the specific ESQT configuration should be checked when designing or replacing a connector.

ESQT-148-02-F-D-745 Contact Arrangement

The connector uses a forked contact design with square contact geometry and phosphor bronze contact material. The mating contacts are gold plated, while the PCB termination is tin finished.

Gold plating at the mating interface is important because the mating area is repeatedly connected and disconnected during the life of a connector system.

The contact material and plating also contribute to the electrical and mechanical characteristics of the interface.

For engineers selecting a replacement, contact construction should therefore be considered along with position count and pitch.

ESQT-148-02-F-D-745 Current Rating

The listed current rating is 4.5 A per contact under the applicable conditions.

This does not mean that a complete 96-contact connector can simply be operated at 4.5 A on every contact simultaneously under every possible condition.

Actual current capability depends on the contact loading pattern, ambient temperature, PCB design, thermal conditions and the applicable manufacturer's specifications.

For power distribution through a board-to-board connector, engineers should calculate the expected current for each contact and evaluate the thermal conditions of the complete connector system.

ESQT-148-02-F-D-745 Operating Temperature

The listed operating temperature range is -55°C to 125°C.

This relatively broad temperature range makes the connector relevant to applications where the interconnect may experience significant environmental temperature variation.

Temperature is particularly important for connectors carrying current because contact resistance and thermal behavior can affect the overall interface.

For applications approaching either end of the specified range, the complete connector system should be evaluated rather than relying only on the nominal temperature rating.

ESQT-148-02-F-D-745 Insulation Material

The connector uses liquid crystal polymer LCP as the insulation material and is listed with a UL94 V-0 flammability rating.

The insulating material provides the mechanical structure around the contacts while maintaining electrical separation between adjacent positions.

For equipment used in industrial and electronic systems, material and flammability characteristics can become important parts of component qualification.

These specifications can also matter when a connector is being evaluated for compliance with a larger product's material requirements.

ESQT-148-02-F-D-745 PCB Applications

The ESQT-148-02-F-D-745 architecture makes it suitable for applications where multiple electrical connections need to pass between PCBs or between a PCB and an associated interconnect system.

Possible applications include board-to-board assemblies, embedded electronic equipment, industrial control hardware, instrumentation and other systems requiring a dense multi-contact connection.

The actual application depends on the mating connector and the mechanical arrangement of the boards.

The connector should therefore be considered as one half of an interconnect system rather than as an isolated component.

ESQT-148-02-F-D-745 for Board to Board Connections

Board-to-board connections are one of the most natural applications for an elevated socket connector.

Two PCBs may need to communicate through power and signal connections while maintaining a defined physical separation.

The socket geometry allows the mating connector to enter the receptacle while the elevated body establishes the required mechanical relationship between the boards.

This can be useful in modular electronic products where boards are stacked rather than connected side by side.

Why the Mating Connector Matters

A common mistake when sourcing connectors is to look at only one side of the connection.

ESQT-148-02-F-D-745 cannot be evaluated properly without considering what it needs to mate with.

The mating connector must have compatible contact geometry, pitch, position arrangement and mechanical dimensions.

Even when another connector has 96 positions and 2.00 mm pitch, differences in the actual mating interface can prevent reliable connection.

For a new design, both sides of the connector system should therefore be selected together.

ESQT-148-02-F-D-745 Mechanical Compatibility

Mechanical compatibility is particularly important for elevated connectors.

The connector height influences the distance between boards.

A change in height can cause mechanical interference with components mounted on either PCB.

It can also change the position of the mating connector relative to the board.

Therefore, when replacing ESQT-148-02-F-D-745, engineers should compare the complete mechanical drawing rather than selecting a connector based only on its electrical specifications.

ESQT-148-02-F-D-745 Replacement Considerations

When searching for an ESQT-148-02-F-D-745 replacement, the first parameters to compare are position count, pitch and mounting type.

Then compare the connector height, mating interface, contact configuration and termination dimensions.

The current requirement should also be checked.

A connector with a similar appearance may have a different contact rating or a different mating structure.

For an existing PCB, the safest replacement is normally one that matches the original footprint and mechanical stack requirements as closely as possible.

Can Another 96 Position Connector Replace ESQT-148-02-F-D-745

Not necessarily.

A 96 position connector can differ in pitch, row spacing, contact style, mounting method and height.

Even a connector with the same 2.00 mm pitch may have a different body geometry or mating interface.

That means 96 positions and 2.00 mm pitch are useful starting points but are not sufficient to establish drop-in compatibility.

The complete mechanical drawing should be checked before approving a replacement.

What Buyers Should Check Before Ordering

When purchasing ESQT-148-02-F-D-745, buyers should use the complete MPN rather than searching only for an ESQT connector.

Confirm the manufacturer and exact part number.

Then verify the number of positions, two-row configuration, 2.00 mm pitch and through-hole mounting.

For an existing product, mechanical height and mating compatibility should also be confirmed.

For production orders, packaging, quantity, manufacturer traceability and supplier reliability can become equally important.

Finding ESQT-148-02-F-D-745 Suppliers

Searching by the complete ESQT-148-02-F-D-745 part number is the most precise way to identify supplier options.

ElecSuppliers can be used as a supplier discovery platform for buyers searching electronic components by exact MPN.

For procurement teams, this is particularly useful when the connector has already been specified in a PCB BOM and the goal is to locate suppliers for the exact configuration rather than a generic 96 position connector.

Understanding ESQT-148-02-F-D-745

ESQT-148-02-F-D-745 is best understood as a specific interconnect solution rather than simply a 96 position connector.

Its 96 contacts, two-row 2.00 mm pitch, elevated socket construction and through-hole mounting determine how it fits into a PCB system. Its gold-plated mating contacts, phosphor bronze contact material and 4.5 A per-contact rating add further information for electrical and mechanical evaluation.

For engineers, the key is to match these characteristics with the board layout and mating interface.

For buyers, the key is to preserve the complete ESQT-148-02-F-D-745 part number when sourcing so that similar ESQT variants are not accidentally treated as equivalent.