REF5040IDRG4 Equivalent & Substitute Parts

Part Overview

The REF5040IDRG4 is a Series Voltage Reference IC manufactured by Texas Instruments, designed to provide a fixed 4.096V output with ±0.05% tolerance. This component is classified as a Power Management (PMIC) device and is packaged in an 8-SOIC surface mount configuration. The REF5040IDRG4 is currently listed as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

REF5040IDRG4

Texas InstrumentsIn Stock: 991REF5040IDRG4 Datasheet

Current PartRFQ

REF5040IDR

Texas InstrumentsIn Stock: 1826REF5040IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the REF5040IDRG4 is determined by strict equivalence across the following critical parameters:

• Output Voltage: 4.096V fixed
• Output Current Capability: 10 mA minimum
• Tolerance: ±0.05%
• Temperature Coefficient: 3 ppm/°C
• Input Voltage Range: 4.296V ~ 18V
• Operating Temperature Range: -40°C ~ 125°C
• Package Type: 8-SOIC surface mount
• Mounting Configuration: Surface mount

The REF5040IDR is identified as the manufacturer-recommended substitute. This part maintains identical electrical specifications and packaging, with the primary distinction being product status transition from obsolete to active.

Parameter Comparison

Engineering Selection Recommendations

The REF5040IDR is the direct equivalent for the obsolete REF5040IDRG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The REF5040IDR carries active product status, ensuring ongoing availability and manufacturing support.

Both parts comply with ROHS3 requirements and maintain REACH Unaffected status, satisfying regulatory compliance requirements for current applications. The MSL rating of 2 (1 Year) applies to both variants, indicating equivalent moisture sensitivity handling requirements.

Selection of the REF5040IDR eliminates obsolescence risk while maintaining full functional and physical compatibility with existing designs utilizing the REF5040IDRG4.

Frequently Asked Questions (FAQ)

Q: Can the REF5040IDR be used as a direct replacement for the REF5040IDRG4?

A: Yes. The REF5040IDR is electrically and mechanically identical to the REF5040IDRG4. All critical parameters including output voltage, tolerance, temperature coefficient, and package configuration are equivalent. The primary difference is product status: REF5040IDR is active while REF5040IDRG4 is obsolete.

Q: What is the difference between REF5040IDRG4 and REF5040IDR?

A: The REF5040IDRG4 and REF5040IDR are functionally equivalent Series Voltage Reference ICs with identical electrical specifications. The suffix variation reflects packaging and distribution channel differences, with REF5040IDR available in Cut Tape (CT) and Digi-Reel® packaging formats. The REF5040IDRG4 is obsolete; REF5040IDR is the active equivalent.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts use the 8-SOIC surface mount package with identical pinout and electrical characteristics. PCB layout, footprint, and circuit design require no modification.

Q: What compliance certifications apply to both parts?

A: Both the REF5040IDRG4 and REF5040IDR are ROHS3 compliant and REACH Unaffected. Both carry MSL rating 2 (1 Year), requiring equivalent moisture sensitivity handling during storage and assembly.

Q: Why is the REF5040IDRG4 listed as obsolete?

A: Product obsolescence reflects Texas Instruments' lifecycle management. The REF5040IDR remains in active production and is the recommended source for new designs and ongoing procurement.