MAX6325ESA Equivalent & Substitute Parts

Part Overview

The MAX6325ESA is a Series, Buried Zener Voltage Reference IC manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed 2.5V output with ±0.04% tolerance and is designed for precision voltage reference applications requiring low noise and stable performance across industrial temperature ranges. The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing system support and new design implementations.

Substiute Parts

MAX6325ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 4296MAX6325ESA Datasheet

Current PartRFQ

MAX6325ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 50230MAX6325ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX6325ESA is determined by strict equivalence across the following critical parameters:

• Reference Type: Series, Buried Zener
• Output Voltage: Fixed 2.5V
• Output Current: 15 mA
• Tolerance: ±0.04%
• Temperature Coefficient: 1.5ppm/°C
• Noise Performance: 1.5µVp-p (0.1Hz to 10Hz) and 1.3µVrms (10Hz to 10kHz)
• Input Voltage Range: 8V ~ 36V
• Supply Current: 3mA
• Operating Temperature Range: -40°C ~ 85°C
• Package: 8-SOIC Surface Mount

The substitute part must maintain identical electrical performance and physical form factor to ensure direct replacement capability without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The MAX6325ESA+ is the direct equivalent substitute for the MAX6325ESA. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and provide identical electrical performance and physical packaging. The primary distinction is product status and regulatory compliance: the MAX6325ESA is obsolete, while the MAX6325ESA+ maintains active production status and meets ROHS3 compliance requirements. For new designs and ongoing system support, the MAX6325ESA+ is the appropriate selection due to its active availability and enhanced regulatory compliance posture.

Frequently Asked Questions (FAQ)

Q: Can MAX6325ESA+ be used as a direct replacement for MAX6325ESA?

A: Yes. Both parts are electrically and mechanically identical, with matching output voltage, tolerance, temperature coefficient, noise specifications, and 8-SOIC package configuration. Direct substitution is possible without circuit modification.

Q: What is the primary reason to transition from MAX6325ESA to MAX6325ESA+?

A: The MAX6325ESA is classified as obsolete, while MAX6325ESA+ maintains active production status. Additionally, MAX6325ESA+ achieves ROHS3 compliance, whereas the original part is RoHS non-compliant.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package with identical pinout and mechanical dimensions.

Q: What are the critical electrical parameters that define substitution eligibility?

A: Substitution is determined by matching reference type (Series, Buried Zener), fixed output voltage (2.5V), output current (15 mA), tolerance (±0.04%), temperature coefficient (1.5ppm/°C), noise specifications, input voltage range (8V ~ 36V), and operating temperature range (-40°C ~ 85°C).

Q: Is inventory availability a consideration for part selection?

A: MAX6325ESA+ has significantly higher inventory availability (50,200 pcs) compared to MAX6325ESA (4,193 pcs), supporting both immediate procurement and long-term supply chain continuity.