Texas Instruments SN0048HBX

Overview

SN0048HBX from Texas Instruments is a mechanical dummy package (no die) in 48-pin ceramic flatpack (HBX) format, designed for board-level mechanical validation, thermal pad layout verification, and socket compatibility testing in radiation-hardened GaN gate driver systems. It replicates the exact footprint, pin count, thermal pad geometry, and mass (2.212 g) of functional TPS7H60x3-SP drivers without electrical functionality. Used during PCB prototyping for space-grade power converter designs where mechanical fit and thermal interface alignment must be confirmed prior to flight hardware integration.

For engineers reviewing the SN0048HBX datasheet, SN0048HBX pinout, SN0048HBX application, or SN0048HBX equivalent, this part serves strictly as a non-functional mechanical placeholder - it provides no gate drive, regulation, or signal conditioning. Key selection considerations include its identical 8.48 × 16.74 mm body size, 48-pin HBX footprint, and thermal pad placement matching TPS7H6003/6013/6023-SP, enabling pre-silicon mechanical design sign-off and test socket qualification.

Technical Context

SN0048HBX is a zero-die mechanical mockup with no internal silicon, active circuitry, or electrical connectivity. It contains no regulators, gate drivers, LDOs, or radiation-hardened logic - all pins are unconnected (NC) except for structural thermal pads (PSW and PGND) that replicate solderable copper areas for thermal interface validation.

The device mirrors the physical construction of the TPS7H60x3-SP family's QMLV-RHA-certified 48-pin ceramic flatpack: same ceramic substrate, identical leadframe metallization, matching pin pitch (0.050″), and calibrated mass (2.212 g). It supports mechanical stress analysis, reflow profile development, and socket insertion force testing under MIL-STD-883-compliant handling conditions.

Key Specifications

Pinout & Package

SN0048HBX uses the same 48-pin HBX ceramic flatpack as the TPS7H60x3-SP series, with identical pin numbering, thermal pad locations (PSW and PGND), and mechanical outline. All pins are unconnected (NC); no internal bonding wires or silicon die are present.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar mechanical placeholder applications.

Compared with SN0048HBX, SN0048HBX/EM offers identical mechanical form but lacks formal qualification documentation, while TPS7H6003HBX/EM introduces full electrical functionality - making it inappropriate for mechanical-only validation where unintended operation or ESD sensitivity must be avoided.

Availability

SN0048HBX is available at Aetrix Electronics and suitable for PCB mechanical fit verification, thermal interface validation, test socket qualification, and mass property modeling requiring stable component supply for aerospace hardware development.

Supply support for SN0048HBX 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

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with deep expertise in radiation-hardened components for space applications.

SN0048HBX belongs to TI's TPS7H60x3-SP product line - a family of radiation-hardness-assured GaN FET gate drivers engineered for high-reliability satellite power systems operating in extreme radiation environments.

FAQ

What is the primary function of the SN0048HBX?

The SN0048HBX is a mechanical dummy package with no die or electrical functionality. Its sole purpose is to replicate the physical dimensions, pin layout, thermal pad geometry, and mass of the TPS7H60x3-SP gate drivers for PCB mechanical validation, socket qualification, and thermal interface testing. SN0048HBX does not perform any gate driving, regulation, or signal conditioning.

Can SN0048HBX be used in place of a functional TPS7H60x3-SP driver on a live circuit?

No. SN0048HBX contains no silicon die, interconnects, or active circuitry - all pins are electrically isolated. Connecting SN0048HBX into a powered circuit will result in complete functional failure, as it provides no gate drive, regulation, or logic. SN0048HBX is strictly for mechanical and thermal pre-validation; functional operation requires a TPS7H6003/6013/6023-SP part.

Does SN0048HBX have radiation-hardness assurance (RHA) certification?

No. SN0048HBX has no die and therefore no radiation performance characteristics. It is not rated for total ionizing dose (TID), single-event effects (SEE), or any radiation environment. RHA certification applies only to functional TPS7H60x3-SP devices with qualified silicon; SN0048HBX serves only as a mechanical reference.

What is the significance of the 2.212 g mass specification for SN0048HBX?

The 2.212 g nominal mass of SN0048HBX matches the functional TPS7H60x3-SP drivers exactly, enabling accurate spacecraft mass property modeling, center-of-gravity calculations, and structural dynamics analysis during early design phases. This precision allows engineers to validate mechanical integration without waiting for flight hardware, reducing program schedule risk.

How does SN0048HBX differ from SN0048HBX/EM?

SN0048HBX is the standard mechanical dummy part, while SN0048HBX/EM is an engineering sample variant with identical physical form but no formal qualification documentation. Both are non-functional, but SN0048HBX is designated for full mechanical validation workflows, whereas SN0048HBX/EM is intended for internal lab use only and lacks traceability for flight-critical design reviews.