REF5040IDG4 Equivalent & Substitute Parts

Part Overview

The REF5040IDG4 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 REF5040IDG4 is currently listed as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	4.096V
Output Current	10 mA
Tolerance	±0.05%
Temperature Coefficient	3 ppm/°C
Noise (0.1Hz to 10Hz)	12 µVpp/V
Input Voltage Range	4.296V ~ 18V
Supply Current	1.2 mA
Operating Temperature	-40°C ~ 125°C (TA)
Package Type	8-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
MSL Rating	2 (1 Year)

Substitute Part Grouping Explanation

Substitution of the REF5040IDG4 is determined by strict equivalence across the following critical parameters:

Fixed output voltage of 4.096V
Output current capability of 10 mA
Tolerance specification of ±0.05%
Temperature coefficient of 3 ppm/°C
Noise performance of 12 µVpp/V (0.1Hz to 10Hz)
Input voltage range of 4.296V ~ 18V
Supply current of 1.2 mA
Operating temperature range of -40°C ~ 125°C
8-SOIC surface mount package configuration
ROHS3 compliance and MSL 2 rating

The REF5040ID meets all electrical and mechanical specifications required for direct substitution. The primary distinction between these parts is product status and packaging format.

Parameter Comparison

Parameter	REF5040IDG4 (Main Part)	REF5040ID (Substitute)
Manufacturer	Texas Instruments	Texas Instruments
Output Voltage	4.096V	4.096V
Output Current	10 mA	10 mA
Tolerance	±0.05%	±0.05%
Temperature Coefficient	3 ppm/°C	3 ppm/°C
Noise (0.1Hz to 10Hz)	12 µVpp/V	12 µVpp/V
Input Voltage Range	4.296V ~ 18V	4.296V ~ 18V
Supply Current	1.2 mA	1.2 mA
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	2 (1 Year)	2 (1 Year)

Engineering Selection Recommendations

The REF5040ID is the direct equivalent substitute for the obsolete REF5040IDG4. Both parts are manufactured by Texas Instruments and maintain identical electrical specifications and package configuration. The REF5040ID carries Active product status, ensuring continued availability and manufacturing support. Both parts maintain ROHS3 compliance and equivalent moisture sensitivity ratings, supporting seamless integration into existing designs. The REF5040ID is available in Tube packaging format, suitable for production environments requiring standard component handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the REF5040ID be used as a direct replacement for the REF5040IDG4?

A: Yes. The REF5040ID provides identical electrical performance and package configuration. All critical parameters including output voltage, tolerance, temperature coefficient, and noise specifications are equivalent.

Q: What is the primary difference between these two part numbers?

A: The REF5040IDG4 is obsolete, while the REF5040ID maintains Active product status. The REF5040ID is supplied in Tube packaging, whereas the original part used a different packaging format.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain ROHS3 compliance, identical MSL ratings, and equivalent environmental certifications.

Q: Is the 8-SOIC package identical between both parts?

A: Yes. Both parts use the same 8-SOIC package with 0.154" width and 3.90mm dimensions, ensuring mechanical and electrical compatibility in PCB layouts.

Q: What is the operating temperature range for these parts?

A: Both the REF5040IDG4 and REF5040ID operate across -40°C to 125°C (TA), supporting industrial and extended temperature applications.

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