MAX6350EPA Equivalent & Substitute Parts

Part Overview

The MAX6350EPA is a Series, Buried Zener Voltage Reference IC manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed 5V output with ±0.02% tolerance and is rated for 15 mA output current. The device operates across an input voltage range of 8V to 36V and is housed in an 8-PDIP through-hole package. The MAX6350EPA is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MAX6350EPA

Analog Devices Inc./Maxim IntegratedIn Stock: 2195MAX6350EPA Datasheet

Current PartRFQ

MAX6350EPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 938MAX6350EPA+ Datasheet

DirectRFQ

MAX8069ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2943MAX8069ESA+ Datasheet

DirectRFQ

LT1027BCN8-5#PBF

Analog Devices Inc.In Stock: 2517LT1027BCN8-5#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX6350EPA is determined by the following critical parameters: output voltage (5V fixed), output current capability (15 mA), tolerance specification (±0.02%), reference type (Series, Buried Zener), input voltage range (8V ~ 36V), operating temperature range (-40°C ~ 85°C), and package type (8-DIP through-hole).

The substitute parts are grouped into two categories:

Direct Package and Electrical Match: MAX6350EPA+ maintains identical electrical specifications and package configuration, differing only in packaging format (Tube) and RoHS compliance status.

Functional Equivalent with Package Variation: LT1027BCN8-5#PBF provides equivalent 5V fixed output at 15 mA with compatible through-hole 8-DIP packaging. This part is manufacturer-recommended and maintains active product status. Minor differences exist in tolerance (±0.05% vs ±0.02%), temperature coefficient (2 ppm/°C vs 1.5 ppm/°C), and operating temperature range (0°C ~ 70°C vs -40°C ~ 85°C).

Alternative Reference Architecture: MAX8069ESA+ operates as a Shunt Voltage Reference with fundamentally different electrical characteristics (1.22V output, 5 mA, ±2.4% tolerance, surface-mount 8-SOIC package). This part is not a direct substitute due to different reference type, output voltage, and mounting technology.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): MAX6350EPA+ is the appropriate choice when exact electrical and mechanical compatibility is required. Both parts share identical output voltage, current rating, tolerance, temperature coefficient, and 8-DIP through-hole package. The primary distinction is RoHS3 compliance status of the MAX6350EPA+, making it suitable for new designs and applications with environmental compliance requirements.

For Active Product Status with Minor Specification Trade-offs: LT1027BCN8-5#PBF is the manufacturer-recommended alternative and maintains active product status. This part is suitable for applications where the relaxed tolerance (±0.05% vs ±0.02%), slightly higher temperature coefficient (2 ppm/°C vs 1.5 ppm/°C), and narrower operating temperature range (0°C ~ 70°C vs -40°C ~ 85°C) are acceptable. The extended input voltage range (8V ~ 40V) provides additional design flexibility. Through-hole 8-DIP packaging ensures mechanical compatibility with existing PCB layouts.

Not Recommended for Direct Substitution: MAX8069ESA+ operates on fundamentally different principles (Shunt reference architecture) with incompatible electrical specifications (1.22V output, 5 mA current, ±2.4% tolerance) and surface-mount packaging. This part is suitable only for applications specifically designed for shunt reference operation and surface-mount assembly.

Frequently Asked Questions (FAQ)

Q: Can MAX6350EPA+ be used as a direct replacement for MAX6350EPA?

A: Yes. Both parts provide identical electrical performance: 5V fixed output, 15 mA output current, ±0.02% tolerance, 1.5 ppm/°C temperature coefficient, and 8V ~ 36V input range. Both are housed in 8-DIP through-hole packages. The MAX6350EPA+ offers improved RoHS3 compliance. No circuit modifications are required.

Q: Is LT1027BCN8-5#PBF a suitable replacement for the MAX6350EPA?

A: LT1027BCN8-5#PBF is functionally compatible for applications where the specification differences are acceptable. The part maintains 5V output, 15 mA current, and 8-DIP through-hole packaging. However, tolerance is ±0.05% (vs ±0.02%), temperature coefficient is 2 ppm/°C (vs 1.5 ppm/°C), and operating temperature range is 0°C ~ 70°C (vs -40°C ~ 85°C). Applications requiring the full -40°C ~ 85°C range or tighter tolerance specifications should use MAX6350EPA+ instead.

Q: Why is MAX8069ESA+ listed as a substitute if it has different specifications?

A: MAX8069ESA+ is listed in the original substitute field but is not a functional equivalent. It operates as a Shunt reference with 1.22V output and 5 mA current, making it unsuitable for applications requiring 5V output at 15 mA. This part is included for reference completeness only and should not be selected for MAX6350EPA replacement applications.

Q: What are the package differences between these parts?

A: MAX6350EPA, MAX6350EPA+, and LT1027BCN8-5#PBF all use 8-DIP (0.300", 7.62mm) through-hole packages with identical pin configurations and PCB footprints. MAX8069ESA+ uses an 8-SOIC (0.154", 3.90mm) surface-mount package, requiring different PCB layout and assembly processes.

Q: Which substitute part should be selected for new designs?

A: LT1027BCN8-5#PBF is the recommended choice for new designs due to its active product status and ROHS3 compliance. MAX6350EPA+ is appropriate if exact specification matching is critical. Both maintain through-hole 8-DIP packaging compatible with existing design practices.