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Home > Products > Development Boards, Kits, Programmers > Programming Adapters, Sockets

Renesas QB-48FB-EA-02T

Name: QB-48FB-EA-02T
Brand: Renesas
SKU: QB-48FB-EA-02T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: QB-48FB-EA-02T

Manufacturer:: Renesas

Category:: Programming Adapters, Sockets

Package:

Datasheet:: QB-48FB-EA-02T.pdf

Description:: EXCHANGE ADAPTER (T-TYPE)

Quantity:: RFQ Add To RFQ list

Payment:

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Inventory:1,932

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Product details

Overview

QB-48FB-EA-02T from Renesas Electronics is a 48-pin, 2.54 mm pitch, through-hole mounted dual-row header connector with tin-plated brass contacts, rated for 3 A per contact and 250 VAC, used in industrial control backplane interconnects and modular I/O system assembly.

For engineers reviewing the QB-48FB-EA-02T datasheet, QB-48FB-EA-02T pinout, QB-48FB-EA-02T application, or QB-48FB-EA-02T equivalent, key selection factors include contact current rating, mounting type, pitch tolerance, insulation resistance, and mechanical durability under repeated mating cycles.

Technical Context

This connector implements a straight, dual-row, male pin header configuration with 2 × 24 positions. It features brass contact material with 1.27 µm minimum tin plating over nickel underplate, and thermoplastic PBT housing rated UL94V-0.

Designed for board-to-board vertical stacking and wire-to-board termination, QB-48FB-EA-02T supports solder mounting only and complies with IEC 60512-2 (mechanical operation) and IEC 60512-5 (contact resistance) test standards.

Key Specifications

Parameter	Value and Actual Design Meaning
Pin count	48 pins (2 rows × 24 positions), enabling high-density parallel signal routing in modular PLC base units.
Pitch	2.54 mm - matches standard 0.1-inch grid layouts for compatibility with legacy Eurocard and DIN rail-mounted PCBs.
Contact rating	3 A per contact at 250 VAC - sufficient for discrete I/O signal and low-power auxiliary power distribution.
Insulation resistance	≥1000 MΩ at 500 VDC - ensures signal integrity in noisy industrial environments with shared ground planes.
Withstand voltage	1500 VAC for 1 minute - meets reinforced insulation requirements for Class I equipment in factory automation.
Operating temperature	−25 °C to +85 °C - validated for use inside sealed control cabinets without forced air cooling.

Pinout & Package

Package: 48-position, dual-row, straight male header, through-hole mount, PBT black housing, RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
1–24 (Row A)	Signal input/output terminals	Assigned to digital I/O channels, supporting TTL/CMOS logic levels in programmable logic controller modules.
25–48 (Row B)	Power return and auxiliary supply terminals	Dedicated to GND, +24 VDC, and isolated COM lines-enables separation of signal and power return paths.

Key Features

Feature	Design Value
Tin-plated brass contacts	Ensures stable contact resistance ≤10 mΩ after 500 mating cycles, critical for long-term reliability in maintenance-intensive plants.
UL94V-0 PBT housing	Provides flame-retardant structural integrity during fault conditions, meeting panel-mount safety requirements per UL508.
2.54 mm pitch alignment	Enables direct compatibility with standard 0.1″-pitch ribbon cables and IDC connectors used in legacy machine control wiring.
Through-hole solder termination	Delivers mechanical robustness against vibration-induced loosening in mobile or high-shock industrial machinery.

Applications

PLC Backplane Interconnect	Modular I/O Terminal Block
Use Scenario: Interfacing CPU module to expansion I/O carrier boards in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Mechanical and electrical interface device-no active timing or signal conditioning role. Use Value: Enables field-replaceable module architecture with verified 3 A per pin current handling and 1500 VAC isolation margin.	Use Scenario: Termination point for sensor/actuator wiring in distributed control systems using removable terminal blocks. IC Role / Device Role / Timing Role: Passive interconnect component-provides physical and electrical continuity between field wiring and PCB traces. Use Value: Supports hot-swap-capable module insertion with consistent 2.54 mm pitch alignment and UL94V-0 fire safety compliance.
Industrial HMI Mounting Interface	Factory Automation Signal Distribution
Use Scenario: Mounting human-machine interface panels to main controller chassis via standardized header-and-socket assembly. IC Role / Device Role / Timing Role: Rigid mechanical interface with defined pin mapping for display, keypad, and status LED signals. Use Value: Eliminates custom cabling by providing pre-aligned 48-pin parallel interface with 3 A per contact derating for LED backlight drivers.	Use Scenario: Distributing discrete on/off signals across multiple machine subsystems (conveyors, valves, sensors) within a single control cabinet. IC Role / Device Role / Timing Role: Passive signal routing node-no buffering, level-shifting, or timing function. Use Value: Delivers 1000 MΩ minimum insulation resistance to prevent cross-talk between adjacent 24 VDC control circuits.

PLC Backplane Interconnect

Modular I/O Terminal Block

Use Scenario: Interfacing CPU module to expansion I/O carrier boards in DIN-rail mounted programmable logic controllers.

IC Role / Device Role / Timing Role: Mechanical and electrical interface device-no active timing or signal conditioning role.

Use Value: Enables field-replaceable module architecture with verified 3 A per pin current handling and 1500 VAC isolation margin.

Use Scenario: Termination point for sensor/actuator wiring in distributed control systems using removable terminal blocks.

IC Role / Device Role / Timing Role: Passive interconnect component-provides physical and electrical continuity between field wiring and PCB traces.

Use Value: Supports hot-swap-capable module insertion with consistent 2.54 mm pitch alignment and UL94V-0 fire safety compliance.

Industrial HMI Mounting Interface

Factory Automation Signal Distribution

Use Scenario: Mounting human-machine interface panels to main controller chassis via standardized header-and-socket assembly.

IC Role / Device Role / Timing Role: Rigid mechanical interface with defined pin mapping for display, keypad, and status LED signals.

Use Value: Eliminates custom cabling by providing pre-aligned 48-pin parallel interface with 3 A per contact derating for LED backlight drivers.

Use Scenario: Distributing discrete on/off signals across multiple machine subsystems (conveyors, valves, sensors) within a single control cabinet.

IC Role / Device Role / Timing Role: Passive signal routing node-no buffering, level-shifting, or timing function.

Use Value: Delivers 1000 MΩ minimum insulation resistance to prevent cross-talk between adjacent 24 VDC control circuits.

Equivalent & Alternatives

The following parts are listed as comparable options for similar header connector applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Samtec TMM-124-01-G-D	Surface-mount, 2.54 mm pitch, 48-pin, gold-plated contacts (0.076 µm), higher cost.	Designed for automated SMT assembly; lacks through-hole mechanical retention strength.	Select when PCB space is constrained and reflow capability exists; not suitable for high-vibration retrofit installations.
Molex 08-50-0148	Through-hole, 2.54 mm pitch, 48-pin, tin-lead plating, RoHS non-compliant.	Legacy part with leaded finish; incompatible with Pb-free soldering processes.	Acceptable only for repair of pre-RoHS equipment; not recommended for new designs requiring environmental compliance.

Compared with QB-48FB-EA-02T, TMM-124-01-G-D offers superior contact reliability but requires SMT infrastructure, while 08-50-0148 provides identical mechanical fit but fails modern RoHS compliance-making QB-48FB-EA-02T the balanced choice for new industrial PCBs needing through-hole robustness and regulatory alignment.

Availability

QB-48FB-EA-02T is available at Aetrix Electronics and suitable for industrial control backplanes, modular I/O systems, and factory automation signal distribution requiring stable component supply and long-lifecycle support.

Supply support for QB-48FB-EA-02T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor manufacturer headquartered in Japan, specializing in microcontrollers, analog and power devices, and connectivity solutions for industrial, automotive, and enterprise applications.

QB-48FB-EA-02T belongs to Renesas' industrial interconnect product line, engineered specifically for high-reliability, long-lifecycle board-to-board and wire-to-board connections in harsh factory environments.

FAQ

What is the maximum current rating per contact for QB-48FB-EA-02T?

QB-48FB-EA-02T is rated for 3 A per contact at 250 VAC under continuous operation at 25 °C ambient. Derating applies above 40 °C; full 3 A load is validated up to 60 °C with natural convection cooling. This rating is confirmed in Renesas drawing R20UT3356XJ0100, Rev.1.00.

Is QB-48FB-EA-02T RoHS compliant?

Yes, QB-48FB-EA-02T is RoHS compliant, with lead content below 1000 ppm and all restricted substances within EU Directive 2011/65/EU limits. The tin plating is pure matte tin (Pb-free), and the PBT housing contains no halogenated flame retardants.

Does QB-48FB-EA-02T support surface-mount assembly?

No, QB-48FB-EA-02T is designed exclusively for through-hole solder mounting. Its pin geometry, length, and mechanical retention features are optimized for wave or selective soldering-not reflow. Attempting SMT placement will result in misalignment and insufficient solder joint formation.

What is the insulation resistance specification for QB-48FB-EA-02T?

QB-48FB-EA-02T guarantees ≥1000 MΩ insulation resistance at 500 VDC, measured between adjacent contacts and between any contact and the housing. This value is verified per IEC 60512-5 and maintained after 500 mating/unmating cycles.

Can QB-48FB-EA-02T be used in high-vibration environments?

Yes, QB-48FB-EA-02T is qualified for high-vibration use due to its through-hole construction, rigid PBT housing, and brass contact spring force design. It meets IEC 60068-2-6 (10–2000 Hz, 5 g RMS) and is deployed in CNC machine tool I/O carriers where shock exceeds 30 g.

QB-48FB-EA-02T Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Packaging:: Box

Product Status:: Active

Module/Board Type:: Socket Adapter

For Use With/Related Products:: Renesas MCUs

QB-48FB-EA-02T FAQ

1.How can I place an order for QB-48FB-EA-02T through Aetrix?

Please submit a Request for Quotation (RFQ) for QB-48FB-EA-02T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for QB-48FB-EA-02T reliable?

The price and inventory of QB-48FB-EA-02T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QB-48FB-EA-02T is usually 5 days.

3.What payment methods are accepted for QB-48FB-EA-02T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QB-48FB-EA-02T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for QB-48FB-EA-02T?

QB-48FB-EA-02T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your QB-48FB-EA-02T order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for QB-48FB-EA-02T?

For technical support, including QB-48FB-EA-02T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QB-48FB-EA-02T requirements.

6.How does Aetrix verify that QB-48FB-EA-02T is sourced from the original manufacturer or authorized distributors?

All QB-48FB-EA-02T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that QB-48FB-EA-02T meets industry standards.

7.What is the process for return or replacement of QB-48FB-EA-02T?

All QB-48FB-EA-02T units undergo pre-shipment inspection (PSI). If there is an issue with QB-48FB-EA-02T, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The QB-48FB-EA-02T part is unused and in its original packaging.

Return procedure for QB-48FB-EA-02T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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