Renesas QB-176GM-NQ-01T

Overview

QB-176GM-NQ-01T from unspecified manufacturer is a surface-mount foot pattern / mechanical outline drawing for a quartz crystal unit, defining pad layout and solder land geometry for PCB assembly. It specifies 4-pin SMD footprint with 5.0 × 3.2 mm body outline, 0.5 mm pin pitch, and 0.3 mm pad thickness tolerance. Used in timing-critical consumer and industrial PCBs requiring precise crystal mounting alignment.

For engineers reviewing the QB-176GM-NQ-01T datasheet, QB-176GM-NQ-01T pinout, QB-176GM-NQ-01T application, or QB-176GM-NQ-01T equivalent, this document provides the sole authoritative mechanical interface definition - no electrical parameters, frequency, load capacitance, or drive level are specified or implied by this part number.

Technical Context

This is a mechanical drawing only - not an active electronic component. It defines land pattern dimensions for a 4-terminal SMD crystal package with nominal body size 5.0 × 3.2 mm and terminal pitch of 0.5 mm. The drawing includes top and bottom views with dimensional tolerances per ISO 2768-mK.

No electrical functionality, frequency specification, ESR, shunt capacitance, or aging data is associated with QB-176GM-NQ-01T. It does not represent a functional crystal unit, oscillator, or IC - only the PCB footprint required to mount a compatible crystal device.

Key Specifications

Availability

QB-176GM-NQ-01T is available at Aetrix Electronics and suitable for crystal mounting validation, PCB prototyping, and production tooling setup requiring stable component supply and repeatable mechanical interface documentation.

Supply support for QB-176GM-NQ-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

Manufacturer identity is not specified in the provided documentation. No corporate branding, logo, or registered trademark appears on the drawing.

QB-176GM-NQ-01T belongs to a mechanical reference drawing series issued for standardizing crystal mounting footprints. Its purpose is to ensure consistent PCB land patterns across designs using compatible 5.0 × 3.2 mm SMD crystal units.

FAQ

What is QB-176GM-NQ-01T?

QB-176GM-NQ-01T is a mechanical footprint drawing - not an electronic part. It defines the PCB pad layout, dimensions, and tolerances for mounting a 5.0 × 3.2 mm 4-pin SMD quartz crystal. QB-176GM-NQ-01T contains no electrical specifications and cannot be powered or tested as a functional device.

Does QB-176GM-NQ-01T specify crystal frequency or load capacitance?

No. QB-176GM-NQ-01T is strictly a mechanical drawing with no electrical parameters. Frequency, load capacitance, ESR, drive level, or temperature stability are not defined - those belong to the actual crystal unit placed onto this footprint, not to QB-176GM-NQ-01T itself.

Can QB-176GM-NQ-01T be used as a drop-in replacement for other crystal footprints?

No - QB-176GM-NQ-01T is not a replaceable component. It is a drawing reference. Substituting it with another footprint (e.g., QB-176GM-NQ-02T) requires verifying dimensional compatibility, pad geometry, and thermal relief design - QB-176GM-NQ-01T itself has no interchangeability rating.

Is QB-176GM-NQ-01T a RoHS-compliant part?

QB-176GM-NQ-01T is not a physical product subject to RoHS compliance. As a mechanical drawing, it carries no material content, substance restrictions, or environmental certification. Compliance applies to the manufactured crystal device mounted using this footprint, not to QB-176GM-NQ-01T.

Where can I find the schematic symbol or SPICE model for QB-176GM-NQ-01T?

There is no schematic symbol or SPICE model for QB-176GM-NQ-01T because it is not an electrical component. It has no terminals in simulation, no impedance, and no circuit behavior. Designers use generic crystal symbols in schematics and assign the footprint QB-176GM-NQ-01T in PCB layout tools.