Renesas QB-48GA-YQ-01T

Overview

QB-48GA-YQ-01T from Renesas Electronics is a YQ-series connector used in the QB-78K0RFX3 in-circuit emulator system to interface an exchange adapter (QB-48GA-EA-05T) with the target connector (QB-48GA-NQ-01T) on 48-pin GA-package 78K0R/FB3 and 78K0R/HC3 microcontrollers. It supports 2.7–5.5 V operation, features gold-plated contacts, and enables reliable high-fidelity signal transmission for real-time debugging of embedded firmware.

For engineers reviewing the QB-48GA-YQ-01T datasheet, QB-48GA-YQ-01T pinout, QB-48GA-YQ-01T application, or QB-48GA-YQ-01T equivalent, this component is critical for establishing low-noise, mechanically stable debug connections between the IECUBE emulator and target boards using 48-pin GA-packaged Renesas 78K0R devices - especially where trace integrity, break-point reliability, and thermal stability under continuous debug sessions are required.

Technical Context

The QB-48GA-YQ-01T serves exclusively as a mechanical and electrical interposer within the QB-78K0RFX3 emulation chain. It mates directly with the QB-48GA-NQ-01T target connector soldered onto the user's board and accepts the QB-48GA-EA-05T exchange adapter, enabling physical alignment and signal continuity for all 48 I/O, power, and clock lines required by the 78K0R/FB3 and 78K0R/HC3 devices.

No active circuitry, impedance tuning, or signal conditioning is integrated. Its design strictly follows Renesas' mechanical interface specification for GA-package emulation: 0.5 mm pitch, 48-position dual-row layout, surface-mount mounting via four M2 screws, and compatibility with QB-48GA-YS-01T space adapters for height adjustment (0–30 mm).

Key Specifications

Availability

QB-48GA-YQ-01T is available at Aetrix Electronics and suitable for embedded firmware development, production-level debug validation, and automotive ECU prototyping requiring stable component supply and guaranteed mechanical interchangeability with Renesas' QB-78K0RFX3 ecosystem.

Supply support for QB-48GA-YQ-01T 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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT applications.

QB-48GA-YQ-01T belongs to the QB-78K0RFX3 accessory product line, designed specifically to enable robust, repeatable in-circuit emulation for Renesas' 78K0R/Fx3 and Hx3 microcontroller families in GA, GB, GK, GC, and K8 packages.

FAQ

What is the primary function of QB-48GA-YQ-01T in the QB-78K0RFX3 emulator system?

QB-48GA-YQ-01T is a passive mechanical interface connector that bridges the QB-48GA-EA-05T exchange adapter and the QB-48GA-NQ-01T target connector on 48-pin GA-package 78K0R/FB3 and 78K0R/HC3 microcontroller boards. It ensures precise pin alignment, low-resistance signal continuity, and secure screw-mounted attachment - critical for maintaining stable JTAG/debug communication during real-time firmware execution and breakpoint analysis. QB-48GA-YQ-01T contains no active electronics and does not modify timing or voltage levels.

Which Renesas microcontrollers are confirmed compatible with QB-48GA-YQ-01T?

Only the 78K0R/FB3 and 78K0R/HC3 microcontrollers in 48-pin GA package are explicitly listed as compatible with QB-48GA-YQ-01T in Table 1-3 of the QB-78K0RFX3 User's Manual (Rev. 2.00). No other 78K0R variants - including FC3, FE3, FF3, FG3, HE3, HF3, or HG3 - are validated for use with this specific YQ connector, even if they share the same pin count or package outline.

Can QB-48GA-YQ-01T be used without the QB-48GA-YS-01T space adapter?

Yes, QB-48GA-YQ-01T can be mounted directly to QB-48GA-NQ-01T without the QB-48GA-YS-01T space adapter. The YQ connector is designed for direct mating; the space adapter is optional and only required when vertical height adjustment (0–30 mm) is needed to accommodate mechanical clearance constraints between the emulator probe and target board. Its omission does not affect electrical functionality or pin compatibility of QB-48GA-YQ-01T.

What torque specification applies when fastening QB-48GA-YQ-01T to the target board?

The tightening torque for the four M2 screws used to secure QB-48GA-YQ-01T to QB-48GA-NQ-01T must not exceed 0.054 N·m, as specified in Section 2.3.2 of the QB-78K0RFX3 User's Manual. Exceeding this value risks damaging the plastic housing, deforming contact pins, or causing intermittent connections. A calibrated torque driver or flat-blade screwdriver with controlled hand pressure is recommended - never use power tools or unregulated force.

Is QB-48GA-YQ-01T RoHS compliant and lead-free?

Yes, QB-48GA-YQ-01T conforms to RoHS Directive 2011/65/EU and is lead-free, consistent with Renesas Electronics' global environmental compliance policy effective from 2006. This is verified through Renesas' official material declarations and applies to all units shipped under part number QB-48GA-YQ-01T - including solderability, plating composition (Pb-free gold/nickel), and packaging materials. Full compliance documentation is available upon request from Aetrix Electronics.