MAX6191BESA Equivalent & Substitute Parts

Part Overview

The MAX6191BESA is a Series Voltage Reference IC manufactured by Analog Devices Inc./Maxim Integrated, designed to provide a fixed 2.048V output with ±0.24% tolerance. This component operates as a precision voltage reference for analog and mixed-signal applications requiring stable reference voltages across industrial temperature ranges.

The MAX6191BESA is classified as Obsolete in terms of product status. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design flexibility is required for long-term production sustainability. The availability of active alternatives ensures continued access to functionally compatible solutions.

Substiute Parts

MAX6191BESA

Analog Devices Inc./Maxim IntegratedIn Stock: 4103MAX6191BESA Datasheet

Current PartRFQ

MAX6191BESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1178MAX6191BESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX6191BESA is determined by electrical and mechanical parameter equivalence. The following criteria establish valid substitution:

Critical Electrical Parameters:

• Fixed output voltage of 2.048V
• Output current capability of 500 µA
• Tolerance specification of ±0.24%
• Temperature coefficient of 10 ppm/°C
• Noise specifications: 40 µVp-p (0.1Hz to 10Hz) and 105 µVrms (10Hz to 10kHz)
• Input voltage range of 2.5V ~ 12.6V
• Supply current of 35 µA

Critical Mechanical Parameters:

• 8-SOIC package with 0.154" (3.90mm) width
• Surface mount mounting type

Parts meeting all these specifications are considered direct electrical and mechanical equivalents. The MAX6191BESA+ variant satisfies all substitution criteria while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MAX6191BESA+ is the direct substitute for the MAX6191BESA. Both components share identical electrical specifications and mechanical packaging, ensuring pin-for-pin and functional compatibility.

The MAX6191BESA+ offers two significant advantages over the original part:

Product Status: The MAX6191BESA+ maintains Active product status, ensuring continued manufacturer support, availability, and supply chain reliability. The MAX6191BESA is Obsolete, presenting long-term sourcing challenges.

Compliance: The MAX6191BESA+ is ROHS3 Compliant, meeting current environmental and regulatory requirements for electronic components. The MAX6191BESA is RoHS non-compliant, which may restrict use in applications subject to RoHS directives.

Both components carry identical REACH Unaffected and EAR99 ECCN classifications. Selection between these parts should prioritize the MAX6191BESA+ for new designs and ongoing production to ensure regulatory compliance and supply continuity.

Frequently Asked Questions (FAQ)

Q: Can MAX6191BESA+ be used as a direct replacement for MAX6191BESA?

A: Yes. The MAX6191BESA+ is electrically and mechanically identical to the MAX6191BESA. All electrical parameters, including output voltage, current, tolerance, temperature coefficient, and noise specifications, are equivalent. Both components use the same 8-SOIC package with identical pinout and mounting requirements.

Q: What is the difference between MAX6191BESA and MAX6191BESA+?

A: The primary differences are product status and compliance. The MAX6191BESA is Obsolete and RoHS non-compliant. The MAX6191BESA+ is Active and ROHS3 Compliant. Packaging differs, with MAX6191BESA+ supplied in Tube format. Electrical performance is identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 8-SOIC package with 0.154" (3.90mm) width. Pinout and mechanical dimensions are identical, enabling direct PCB-level substitution without layout modifications.

Q: Which part should be selected for new designs?

A: The MAX6191BESA+ should be selected for new designs. Active product status ensures ongoing manufacturer support and availability. ROHS3 compliance meets current regulatory requirements for most markets and applications.

Q: Is the MAX6191BESA+ suitable for industrial temperature range applications?

A: Yes. The MAX6191BESA+ operates across the -40°C to 85°C temperature range with a temperature coefficient of 10 ppm/°C, meeting industrial application requirements.