MAX703CSA-T Equivalent & Substitute Parts

Part Overview

The MAX703CSA-T is a single-channel supervisor integrated circuit manufactured by Analog Devices Inc./Maxim Integrated, classified as a Power Management (PMIC) device. This component functions as a battery backup circuit supervisor with push-pull, totem pole output configuration. The part is currently listed as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and component procurement. Substitute parts must maintain identical electrical characteristics and mechanical compatibility to ensure direct replacement capability in existing applications.

Substiute Parts

MAX703CSA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 4379MAX703CSA-T Datasheet

Current PartRFQ

MAX703CSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1297MAX703CSA+T Datasheet

DirectRFQ

MAX690ACSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 28677MAX690ACSA+T Datasheet

Parametric EquivalentRFQ

MAX802LCSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 891MAX802LCSA+T Datasheet

Parametric EquivalentRFQ

STM703M6F

STMicroelectronicsIn Stock: 748STM703M6F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX703CSA-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Number of Voltages Monitored: 1 channel
• Voltage Threshold: 4.65V
• Output Configuration: Push-Pull, Totem Pole
• Reset Logic: Active Low
• Reset Timeout: 140ms Minimum
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

Acceptable Variation:

• Operating Temperature range may extend beyond the original specification (0°C ~ 70°C) provided the original range is fully contained within the substitute's range
• Product Status may differ (Active substitutes are preferred for obsolete parts)
• Packaging format (Tape & Reel, Cut Tape, Digi-Reel) does not affect electrical equivalence
• Inventory availability does not affect substitution validity

All identified substitutes maintain identical electrical and mechanical specifications within these parameters.

Parameter Comparison

Engineering Selection Recommendations

MAX703CSA+T — Direct packaging variant of the main part number. Identical electrical specifications with active product status. Suitable for direct replacement where Tape & Reel packaging is acceptable. Maintains all compliance certifications (ROHS3, REACH Unaffected).

MAX690ACSA+T — Parametric equivalent from Analog Devices Inc./Maxim Integrated. Meets all electrical and mechanical requirements with extended availability (28599 units in stock). Highest inventory availability among substitutes. Compatible with original application requirements. Supports both Cut Tape and Digi-Reel packaging options.

MAX802LCSA+T — Parametric equivalent from Analog Devices Inc./Maxim Integrated. Maintains all critical electrical parameters and mechanical compatibility. Active product status ensures long-term supply chain viability. Tape & Reel packaging format.

STM703M6F — Manufacturer-recommended substitute from STMicroelectronics. Meets all electrical and mechanical specifications with extended operating temperature range (-40°C ~ 85°C), which encompasses the original specification. ROHS3 compliant and REACH unaffected. Provides alternative sourcing from different manufacturer.

All substitutes are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance with the original part.

Frequently Asked Questions (FAQ)

Q: Can MAX703CSA+T be used as a direct replacement for MAX703CSA-T?

A: Yes. MAX703CSA+T is a direct equivalent with identical electrical specifications and 8-SOIC package configuration. The primary difference is packaging format (Tape & Reel versus unspecified). Both maintain 4.65V threshold, 140ms minimum reset timeout, active low reset logic, and push-pull totem pole output.

Q: What is the difference between the Analog Devices substitutes (MAX690ACSA+T, MAX802LCSA+T) and the original MAX703CSA-T?

A: All three Analog Devices parts are parametrically equivalent. They share identical voltage threshold (4.65V), reset timeout (140ms minimum), output configuration (push-pull totem pole), and package type (8-SOIC). The base product numbers differ (MAX690, MAX802, MAX703), but electrical performance is equivalent for this application.

Q: Why does STM703M6F have a different operating temperature range?

A: STM703M6F operates across -40°C ~ 85°C, which fully contains the original MAX703CSA-T range of 0°C ~ 70°C. This extended range does not affect substitution validity; the part functions correctly within the original specification window. The wider temperature range may provide additional design margin for applications requiring extended thermal performance.

Q: Are all substitutes available in the same package?

A: Yes. All substitutes use 8-SOIC (0.154", 3.90mm Width) surface mount packaging. Packaging formats (Tape & Reel, Cut Tape, Digi-Reel) differ but do not affect electrical compatibility or PCB assembly compatibility.

Q: Which substitute has the best inventory availability?

A: MAX690ACSA+T has the highest inventory level at 28599 units in stock, followed by MAX703CSA-T (4360 units). For applications requiring immediate procurement, MAX690ACSA+T provides the most reliable supply chain position.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All identified substitutes maintain ROHS3 compliance and REACH unaffected status, matching the regulatory compliance profile of the original MAX703CSA-T.

Q: Can I use STM703M6F from STMicroelectronics instead of the Analog Devices parts?

A: Yes. STM703M6F meets all electrical and mechanical requirements and is manufacturer-recommended as a substitute. It provides alternative sourcing from a different manufacturer while maintaining identical functional performance within the original operating specification.